apops March 2009

apops@apops.net

5 participants
23 discussions

by noreply＠apnic.net

Dear Subscriber, This is the monthly reminder of subscription information for the apops list, hosted at APNIC. For subscription information including how to un-subscribe go to http://mailman.apnic.net/mailman/listinfo/apops Thank you for participating in this discussion. Kind Regards, List administrator

13 years, 3 months

Weekly Routing Table Report

by Routing Analysis Role Account

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 28 Mar, 2009 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 283794 Prefixes after maximum aggregation: 134532 Deaggregation factor: 2.11 Unique aggregates announced to Internet: 139535 Total ASes present in the Internet Routing Table: 30912 Prefixes per ASN: 9.18 Origin-only ASes present in the Internet Routing Table: 26905 Origin ASes announcing only one prefix: 13087 Transit ASes present in the Internet Routing Table: 4007 Transit-only ASes present in the Internet Routing Table: 99 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 25 Max AS path prepend of ASN (18678) 21 Prefixes from unregistered ASNs in the Routing Table: 493 Unregistered ASNs in the Routing Table: 165 Number of 32-bit ASNs allocated by the RIRs: 138 Prefixes from 32-bit ASNs in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 251 Number of addresses announced to Internet: 2022627808 Equivalent to 120 /8s, 142 /16s and 217 /24s Percentage of available address space announced: 54.6 Percentage of allocated address space announced: 63.8 Percentage of available address space allocated: 85.5 Percentage of address space in use by end-sites: 76.1 Total number of prefixes smaller than registry allocations: 139620 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 65682 Total APNIC prefixes after maximum aggregation: 23471 APNIC Deaggregation factor: 2.80 Prefixes being announced from the APNIC address blocks: 62432 Unique aggregates announced from the APNIC address blocks: 28564 APNIC Region origin ASes present in the Internet Routing Table: 3585 APNIC Prefixes per ASN: 17.41 APNIC Region origin ASes announcing only one prefix: 974 APNIC Region transit ASes present in the Internet Routing Table: 547 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 409336608 Equivalent to 24 /8s, 101 /16s and 251 /24s Percentage of available APNIC address space announced: 81.3 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 124316 Total ARIN prefixes after maximum aggregation: 65644 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 93687 Unique aggregates announced from the ARIN address blocks: 36273 ARIN Region origin ASes present in the Internet Routing Table: 12867 ARIN Prefixes per ASN: 7.28 ARIN Region origin ASes announcing only one prefix: 4937 ARIN Region transit ASes present in the Internet Routing Table: 1239 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 420340480 Equivalent to 25 /8s, 13 /16s and 227 /24s Percentage of available ARIN address space announced: 80.8 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 65001 Total RIPE prefixes after maximum aggregation: 37810 RIPE Deaggregation factor: 1.72 Prefixes being announced from the RIPE address blocks: 59598 Unique aggregates announced from the RIPE address blocks: 39657 RIPE Region origin ASes present in the Internet Routing Table: 12845 RIPE Prefixes per ASN: 4.64 RIPE Region origin ASes announcing only one prefix: 6749 RIPE Region transit ASes present in the Internet Routing Table: 1937 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 392009120 Equivalent to 23 /8s, 93 /16s and 149 /24s Percentage of available RIPE address space announced: 83.4 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223 RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 23524 Total LACNIC prefixes after maximum aggregation: 5849 LACNIC Deaggregation factor: 4.02 Prefixes being announced from the LACNIC address blocks: 21683 Unique aggregates announced from the LACNIC address blocks: 11890 LACNIC Region origin ASes present in the Internet Routing Table: 1082 LACNIC Prefixes per ASN: 20.04 LACNIC Region origin ASes announcing only one prefix: 342 LACNIC Region transit ASes present in the Internet Routing Table: 179 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 61816320 Equivalent to 3 /8s, 175 /16s and 62 /24s Percentage of available LACNIC address space announced: 61.4 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247 plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 4816 Total AfriNIC prefixes after maximum aggregation: 1387 AfriNIC Deaggregation factor: 3.47 Prefixes being announced from the AfriNIC address blocks: 4519 Unique aggregates announced from the AfriNIC address blocks: 1351 AfriNIC Region origin ASes present in the Internet Routing Table: 284 AfriNIC Prefixes per ASN: 15.91 AfriNIC Region origin ASes announcing only one prefix: 85 AfriNIC Region transit ASes present in the Internet Routing Table: 55 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 10140928 Equivalent to 0 /8s, 154 /16s and 189 /24s Percentage of available AfriNIC address space announced: 30.2 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1693 6929 393 Korea Telecom (KIX) 17488 1532 121 96 Hathway IP Over Cable Interne 4755 1177 405 182 TATA Communications formerly 9583 1086 86 537 Sify Limited 4134 927 16390 367 CHINANET-BACKBONE 7545 774 163 105 TPG Internet Pty Ltd 18101 760 206 34 Reliance Infocom Ltd Internet 9498 688 296 50 BHARTI BT INTERNET LTD. 24560 678 228 175 Bharti Airtel Ltd. 9829 638 491 20 BSNL National Internet Backbo Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4324 3672 329 bellsouth.net, inc. 209 2653 4151 622 Qwest 4323 1808 1049 372 Time Warner Telecom 1785 1737 717 139 PaeTec Communications, Inc. 20115 1594 1430 725 Charter Communications 7018 1447 5896 1020 AT&T WorldNet Services 6478 1295 295 527 AT&T Worldnet Services 2386 1255 680 899 AT&T Data Communications Serv 3356 1198 10978 452 Level 3 Communications, LLC 11492 1193 192 11 Cable One Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8452 1247 188 7 TEDATA 3292 453 1763 393 TDC Tele Danmark 30890 436 86 194 SC Kappa Invexim SRL 12479 405 578 6 Uni2 Autonomous System 3301 342 1685 307 TeliaNet Sweden 3215 339 3017 108 France Telecom Transpac 3320 337 7074 294 Deutsche Telekom AG 8866 337 109 22 Bulgarian Telecommunication C 29049 324 26 3 AzerSat LLC. 8551 313 288 40 Bezeq International Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1441 2831 235 UniNet S.A. de C.V. 10620 839 191 98 TVCABLE BOGOTA 22047 607 302 14 VTR PUNTO NET S.A. 7303 520 260 80 Telecom Argentina Stet-France 11830 520 294 42 Instituto Costarricense de El 16814 491 31 10 NSS, S.A. 6471 442 95 32 ENTEL CHILE S.A. 11172 410 102 72 Servicios Alestra S.A de C.V 7738 397 794 28 Telecomunicacoes da Bahia S.A 28573 386 518 25 NET Servicos de Comunicao S.A Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 831 74 30 LINKdotNET AS number 20858 292 34 3 This AS will be used to conne 3741 272 858 232 The Internet Solution 2018 242 215 142 Tertiary Education Network 6713 159 150 15 Itissalat Al-MAGHRIB 33783 148 10 8 EEPAD TISP TELECOM & INTERNET 29571 137 15 8 Ci Telecom Autonomous system 5536 123 8 9 Internet Egypt Network 5713 115 507 65 Telkom SA Ltd 33776 109 6 3 Starcomms Nigeria Limited Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 4324 3672 329 bellsouth.net, inc. 209 2653 4151 622 Qwest 4323 1808 1049 372 Time Warner Telecom 1785 1737 717 139 PaeTec Communications, Inc. 4766 1693 6929 393 Korea Telecom (KIX) 20115 1594 1430 725 Charter Communications 17488 1532 121 96 Hathway IP Over Cable Interne 7018 1447 5896 1020 AT&T WorldNet Services 8151 1441 2831 235 UniNet S.A. de C.V. 6478 1295 295 527 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 2653 2031 Qwest 1785 1737 1598 PaeTec Communications, Inc. 4323 1808 1436 Time Warner Telecom 17488 1532 1436 Hathway IP Over Cable Interne 4766 1693 1300 Korea Telecom (KIX) 8452 1247 1240 TEDATA 8151 1441 1206 UniNet S.A. de C.V. 11492 1193 1182 Cable One 18566 1061 1051 Covad Communications 4755 1177 995 TATA Communications formerly Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.75.116.0/22 10796 ServiceCo LLC - Road Runner 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 41.220.16.0/20 8668 TelOne Zimbabwe P/L 41.223.112.0/22 5713 Telkom SA Ltd 41.223.188.0/24 22351 Intelsat 41.223.189.0/24 26452 Local Communications Networks 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 62.61.221.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio Complete listing at http://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:10 /10:20 /11:56 /12:163 /13:321 /14:586 /15:1143 /16:10388 /17:4640 /18:7977 /19:17040 /20:20218 /21:19919 /22:25356 /23:25314 /24:148648 /25:646 /26:799 /27:363 /28:115 /29:37 /30:9 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2809 4324 bellsouth.net, inc. 4766 1398 1693 Korea Telecom (KIX) 209 1358 2653 Qwest 17488 1301 1532 Hathway IP Over Cable Interne 8452 1226 1247 TEDATA 11492 1149 1193 Cable One 1785 1145 1737 PaeTec Communications, Inc. 18566 1042 1061 Covad Communications 2386 957 1255 AT&T Data Communications Serv 4323 942 1808 Time Warner Telecom Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:13 8:172 12:2198 13:3 15:19 16:3 17:4 20:35 24:1122 32:51 38:550 40:97 41:2002 43:1 44:2 47:21 52:3 55:2 56:3 57:25 58:530 59:618 60:461 61:1104 62:1122 63:2023 64:3604 65:2430 66:3595 67:1506 68:688 69:2537 70:512 71:164 72:1651 73:2 74:1462 75:206 76:309 77:835 78:540 79:306 80:955 81:821 82:533 83:407 84:598 85:1009 86:396 87:623 88:351 89:1490 90:44 91:2089 92:331 93:1127 94:1209 95:825 96:106 97:184 98:243 99:17 109:1 110:32 112:91 113:89 114:223 115:235 116:1127 117:476 118:285 119:658 120:142 121:712 122:981 123:552 124:960 125:1302 128:221 129:226 130:129 131:415 132:74 133:9 134:186 135:39 136:241 137:153 138:147 139:77 140:419 141:104 142:391 143:331 144:323 145:43 146:376 147:150 148:513 149:239 150:147 151:200 152:151 153:136 154:11 155:266 156:167 157:297 158:133 159:273 160:281 161:133 162:271 163:148 164:478 165:533 166:276 167:361 168:682 169:162 170:475 171:38 172:10 173:249 174:153 178:1 186:7 187:69 188:9 189:304 190:2704 192:5808 193:4219 194:3330 195:2677 196:1069 198:3729 199:3317 200:5503 201:1361 202:7861 203:8069 204:3795 205:2158 206:2389 207:2797 208:3896 209:3450 210:2632 211:1107 212:1503 213:1693 214:70 215:25 216:4542 217:1268 218:360 219:416 220:1208 221:449 222:261 End of report

13 years, 3 months

BGP Update Report

by cidr-report＠potaroo.net

BGP Update Report Interval: 23-Feb-09 -to- 26-Mar-09 (32 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9583 178710 4.2% 168.3 -- SIFY-AS-IN Sify Limited 2 - AS3130 75459 1.8% 580.5 -- RGNET-3130 RGnet/PSGnet 3 - AS6629 45245 1.1% 7540.8 -- NOAA-AS - NOAA 4 - AS35805 34923 0.8% 109.8 -- UTG-AS United Telecom AS 5 - AS9498 33067 0.8% 47.5 -- BBIL-AP BHARTI Airtel Ltd. 6 - AS4771 31425 0.7% 119.9 -- NZTELECOM Netgate 7 - AS5056 28898 0.7% 249.1 -- INS-NET-2 - Iowa Network Services 8 - AS29372 28893 0.7% 324.6 -- SFR-NETWORK SFR 9 - AS6458 28167 0.7% 86.9 -- Telgua 10 - AS12978 28084 0.7% 156.9 -- DOGAN-ONLINE Dogan Iletisim Elektronik Servis Hizmetleri AS 11 - AS17488 26032 0.6% 16.6 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 12 - AS5050 24618 0.6% 2461.8 -- PSC-EXT - Pittsburgh Supercomputing Center 13 - AS4434 23460 0.6% 601.5 -- ERX-RADNET1-AS PT Rahajasa Media Internet 14 - AS7643 22445 0.5% 19.7 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 15 - AS4648 22396 0.5% 110.3 -- NZIX-2 Netgate 16 - AS4795 20117 0.5% 61.9 -- INDOSATM2-ID INDOSATM2 ASN 17 - AS9829 19858 0.5% 30.9 -- BSNL-NIB National Internet Backbone 18 - AS17974 18503 0.4% 31.5 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 19 - AS8103 17873 0.4% 29.9 -- STATE-OF-FLA - Florida Department of Management Services - Technology Program 20 - AS10620 17537 0.4% 22.1 -- TV Cable S.A. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS5691 10406 0.2% 10406.0 -- MITRE-AS-5 - The MITRE Corporation 2 - AS6629 45245 1.1% 7540.8 -- NOAA-AS - NOAA 3 - AS19017 5658 0.1% 5658.0 -- QUALCOMM-QWBS-LV - Qualcomm, Inc. 4 - AS30306 17285 0.4% 4321.2 -- AfOL-Sz-AS 5 - AS8225 4183 0.1% 4183.0 -- ASTELIT-MSK-AS Astelit Autonomous System 6 - AS46653 10128 0.2% 3376.0 -- FREDRIKSON---BYRON - Fredrikson & Byron, P.A. 7 - AS6312 3284 0.1% 3284.0 -- WESTWORLD-AS - WestWorld Media, LLC 8 - AS41343 5906 0.1% 2953.0 -- TRIUNFOTEL-ASN TRIUNFOTEL 9 - AS5050 24618 0.6% 2461.8 -- PSC-EXT - Pittsburgh Supercomputing Center 10 - AS8755 2068 0.1% 2068.0 -- CITYLINESPB-AS CityLine-SPb Autonomous System 11 - AS28194 4074 0.1% 2037.0 -- 12 - AS30552 1970 0.1% 1970.0 -- SAINT-JOSEPHS-HOSPITAL-OF-ATLANTA - Saint Joseph's Hospital of Atlanta 13 - AS32398 13839 0.3% 1729.9 -- REALNET-ASN-1 14 - AS46328 14725 0.3% 1636.1 -- PTCNEBRASKA - PIERCE TELEPHONE COMPANY, INCORPORATED 15 - AS7717 12904 0.3% 1613.0 -- OPENIXP-AS-ID-AP OpenIXP ASN 16 - AS20925 4456 0.1% 1485.3 -- RESEAU-DANZAS DANZAS Autonomous System 17 - AS30520 5756 0.1% 1439.0 -- NUANCE-SOMERVILLE - NUANCE COMMUNICATIONS, INC 18 - AS35335 1430 0.0% 1430.0 -- ESSTU-AS East-Siberian State Technological University AS 19 - AS40344 1379 0.0% 1379.0 -- PROSK-1 - Pro Sky Wireless 20 - AS42291 4884 0.1% 1221.0 -- ISTRANET-AS Istranet LLC TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 72.23.246.0/24 24527 0.5% AS5050 -- PSC-EXT - Pittsburgh Supercomputing Center 2 - 192.35.129.0/24 15183 0.3% AS6629 -- NOAA-AS - NOAA 3 - 192.102.88.0/24 15043 0.3% AS6629 -- NOAA-AS - NOAA 4 - 198.77.177.0/24 15007 0.3% AS6629 -- NOAA-AS - NOAA 5 - 221.135.105.0/24 14858 0.3% AS9583 -- SIFY-AS-IN Sify Limited 6 - 210.214.222.0/24 14823 0.3% AS9583 -- SIFY-AS-IN Sify Limited 7 - 210.214.232.0/24 14774 0.3% AS9583 -- SIFY-AS-IN Sify Limited 8 - 210.214.177.0/24 14743 0.3% AS9583 -- SIFY-AS-IN Sify Limited 9 - 210.214.132.0/24 14723 0.3% AS9583 -- SIFY-AS-IN Sify Limited 10 - 210.214.184.0/24 14714 0.3% AS9583 -- SIFY-AS-IN Sify Limited 11 - 210.214.156.0/24 14705 0.3% AS9583 -- SIFY-AS-IN Sify Limited 12 - 210.214.146.0/24 14539 0.3% AS9583 -- SIFY-AS-IN Sify Limited 13 - 210.214.117.0/24 14435 0.3% AS9583 -- SIFY-AS-IN Sify Limited 14 - 210.210.127.0/24 14386 0.3% AS9583 -- SIFY-AS-IN Sify Limited 15 - 41.204.2.0/24 13641 0.3% AS32398 -- REALNET-ASN-1 16 - 221.134.32.0/24 12908 0.3% AS9583 -- SIFY-AS-IN Sify Limited 17 - 121.101.184.0/24 12755 0.3% AS38785 -- BAGUSNET-AS-ID PT. BORNEO BROADBAND TECHNOLOGY AS7717 -- OPENIXP-AS-ID-AP OpenIXP ASN 18 - 222.255.51.64/26 11005 0.2% AS7643 -- VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 19 - 192.12.120.0/24 10406 0.2% AS5691 -- MITRE-AS-5 - The MITRE Corporation 20 - 199.45.13.0/24 10096 0.2% AS46653 -- FREDRIKSON---BYRON - Fredrikson & Byron, P.A. Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

13 years, 3 months

The Cidr Report

by cidr-report＠potaroo.net

This report has been generated at Fri Mar 27 21:14:03 2009 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 20-03-09 290412 181310 21-03-09 290541 181280 22-03-09 290520 181269 23-03-09 290491 181327 24-03-09 290531 181343 25-03-09 290656 181601 26-03-09 290800 181539 27-03-09 290729 181710 AS Summary 30998 Number of ASes in routing system 13159 Number of ASes announcing only one prefix 4322 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 89615616 Largest address span announced by an AS (/32s) AS27064: DDN-ASNBLK1 - DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 27Mar09 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 290864 181668 109196 37.5% All ASes AS6389 4322 343 3979 92.1% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS4323 4248 1677 2571 60.5% TWTC - tw telecom holdings, inc. AS209 2655 1156 1499 56.5% ASN-QWEST - Qwest Communications Corporation AS4766 1822 529 1293 71.0% KIXS-AS-KR Korea Telecom AS17488 1532 349 1183 77.2% HATHWAY-NET-AP Hathway IP Over Cable Internet AS22773 1038 66 972 93.6% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS8452 1247 298 949 76.1% TEDATA TEDATA AS1785 1737 797 940 54.1% AS-PAETEC-NET - PaeTec Communications, Inc. AS4755 1177 271 906 77.0% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS8151 1438 572 866 60.2% Uninet S.A. de C.V. AS19262 969 250 719 74.2% VZGNI-TRANSIT - Verizon Internet Services Inc. AS7545 800 203 597 74.6% TPG-INTERNET-AP TPG Internet Pty Ltd AS11492 1193 636 557 46.7% CABLEONE - CABLE ONE, INC. AS6478 1295 742 553 42.7% ATT-INTERNET3 - AT&T WorldNet Services AS3356 1198 650 548 45.7% LEVEL3 Level 3 Communications AS18101 760 222 538 70.8% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS2706 544 26 518 95.2% HKSUPER-HK-AP Pacific Internet (Hong Kong) Limited AS6517 745 231 514 69.0% RELIANCEGLOBALCOM - Reliance Globalcom Services, Inc AS22047 607 119 488 80.4% VTR BANDA ANCHA S.A. AS4808 616 160 456 74.0% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS17908 603 148 455 75.5% TCISL Tata Communications AS4804 494 64 430 87.0% MPX-AS Microplex PTY LTD AS9443 523 95 428 81.8% INTERNETPRIMUS-AS-AP Primus Telecommunications AS24560 678 250 428 63.1% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS7018 1449 1022 427 29.5% ATT-INTERNET4 - AT&T WorldNet Services AS17676 547 131 416 76.1% GIGAINFRA BB TECHNOLOGY Corp. AS7011 962 550 412 42.8% FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. AS4668 693 285 408 58.9% LGNET-AS-KR LG CNS AS5668 775 383 392 50.6% AS-5668 - CenturyTel Internet Holdings, Inc. AS6471 442 62 380 86.0% ENTEL CHILE S.A. Total 37109 12287 24822 66.9% Top 30 total Possible Bogus Routes 24.75.116.0/22 AS10796 SCRR-10796 - Road Runner HoldCo LLC 24.245.128.0/17 AS11492 CABLEONE - CABLE ONE, INC. 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 41.220.16.0/20 AS8668 TELONE-AS TelOne Zimbabwe P/L 41.223.112.0/22 AS5713 SAIX-NET 41.223.188.0/24 AS22351 INTELSAT Intelsat Global BGP Routing Policy 41.223.189.0/24 AS26452 BRING-AS - BringCom, Inc. 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV - Wireless Broadband via Satellite 62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV - Wireless Broadband via Satellite 63.140.213.0/24 AS22555 UTC - Universal Talkware Corporation 63.143.251.0/24 AS22555 UTC - Universal Talkware Corporation 64.31.32.0/19 AS11955 SCRR-11955 - Road Runner HoldCo LLC 64.31.32.0/22 AS10796 SCRR-10796 - Road Runner HoldCo LLC 64.31.36.0/23 AS10796 SCRR-10796 - Road Runner HoldCo LLC 64.31.38.0/23 AS12262 RR-CINCINNATI-ASN-01 - Road Runner HoldCo LLC 64.31.40.0/23 AS12262 RR-CINCINNATI-ASN-01 - Road Runner HoldCo LLC 64.31.42.0/23 AS10796 SCRR-10796 - Road Runner HoldCo LLC 64.31.44.0/23 AS10796 SCRR-10796 - Road Runner HoldCo LLC 64.31.46.0/24 AS10796 SCRR-10796 - Road Runner HoldCo LLC 64.31.48.0/22 AS11060 NEO-RR-COM - Road Runner HoldCo LLC 64.31.53.0/24 AS10796 SCRR-10796 - Road Runner HoldCo LLC 64.31.55.0/24 AS10796 SCRR-10796 - Road Runner HoldCo LLC 64.31.59.0/24 AS7017 SCRR-7015 - Road Runner HoldCo LLC 64.31.60.0/24 AS7017 SCRR-7015 - Road Runner HoldCo LLC 64.73.192.0/19 AS11247 IBSINC - Internet Business Services, Inc. 64.79.88.0/24 AS26096 LODDEN - Lodden Services 64.79.89.0/24 AS26096 LODDEN - Lodden Services 64.147.64.0/19 AS40156 THEOPT-HOU - The Optimal Link Corporation 64.186.0.0/19 AS6371 AMERICATEL - Americatel Corporation 64.186.6.0/24 AS6371 AMERICATEL - Americatel Corporation 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.11.40.0/21 AS6261 VISINET - Visionary Systems, Inc. 66.54.91.0/24 AS30506 BLACKSUN-1 - Blacksun Technologies LLC 66.55.160.0/19 AS29994 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.206.32.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.33.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.34.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.35.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.40.0/22 AS174 COGENT Cogent/PSI 66.206.44.0/23 AS174 COGENT Cogent/PSI 66.206.47.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 66.207.32.0/20 AS23011 66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC 69.71.192.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 69.80.0.0/17 AS3043 AMPHIB-AS - Amphibian Media Corporation 80.88.0.0/21 AS33774 DJAWEB 80.88.8.0/22 AS33774 DJAWEB 80.88.10.0/24 AS33774 DJAWEB 80.88.12.0/24 AS33779 wataniya-telecom-as 91.212.99.0/24 AS43113 WARPNET-AS Warpnet 96.0.0.0/16 AS32392 OPENTRANSFER-ECOMMERCE - Ecommerce Corporation 98.96.0.0/13 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 109.0.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 109.1.0.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 109.1.24.0/24 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 121.50.168.0/21 AS9931 CAT-AP The Communication Authoity of Thailand, CAT 121.101.3.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 121.101.4.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 121.101.7.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 121.101.17.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 121.101.18.0/23 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 122.128.120.0/22 AS38456 PACTEL-AS-AP Pacific Teleports. 124.157.1.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 124.157.22.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 124.157.30.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 124.157.32.0/23 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 124.157.34.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 124.157.56.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 131.161.0.0/16 AS7091 VIANET-ASN - ViaNet Communications 137.0.0.0/13 AS27064 DDN-ASNBLK1 - DoD Network Information Center 163.142.0.0/16 AS2500 WIDE-BB WIDE Project 172.7.0.0/24 AS28175 172.10.1.0/30 AS18305 POSNET POSDATA Co.,Ltd 178.0.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 178.1.0.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 178.1.24.0/24 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 192.9.0.0/16 AS11479 BRM-SUN-AS - Sun Microsystems, Inc 192.9.200.0/24 AS3602 AS3602-RTI - Rogers Telecom Inc. 192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.107.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.177.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.96.37.0/24 AS10474 NETACTIVE 192.96.135.0/24 AS2018 TENET-1 192.96.136.0/23 AS2018 TENET-1 192.96.141.0/24 AS2018 TENET-1 192.96.143.0/24 AS2018 TENET-1 192.96.145.0/24 AS2018 TENET-1 192.96.177.0/24 AS6083 POSIX-AFRICA 192.101.45.0/24 AS2905 TICSA-ASN 192.101.46.0/24 AS6503 Avantel, S.A. 192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.74.0/24 AS1239 SPRINTLINK - Sprint 192.124.248.0/23 AS680 DFN-IP service G-WiN 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 192.133.6.0/24 AS10282 ORANGE-BUSINESS-SERVICES-CEEUR Orange Business Services (formerly Equant) AS for CEEUR 192.153.144.0/21 AS27064 DDN-ASNBLK1 - DoD Network Information Center 192.154.32.0/19 AS81 NCREN - MCNC 192.188.208.0/20 AS27064 DDN-ASNBLK1 - DoD Network Information Center 196.6.108.0/24 AS5713 SAIX-NET 196.10.119.0/24 AS2018 TENET-1 196.10.122.0/23 AS2018 TENET-1 196.10.251.0/24 AS2018 TENET-1 196.10.252.0/23 AS2018 TENET-1 196.10.254.0/24 AS2018 TENET-1 196.13.101.0/24 AS2018 TENET-1 196.13.102.0/23 AS2018 TENET-1 196.13.104.0/24 AS2018 TENET-1 196.13.121.0/24 AS2018 TENET-1 196.13.125.0/24 AS2018 TENET-1 196.13.126.0/24 AS2018 TENET-1 196.13.169.0/24 AS2018 TENET-1 196.13.174.0/23 AS2018 TENET-1 196.13.176.0/21 AS2018 TENET-1 196.13.192.0/22 AS2018 TENET-1 196.13.196.0/24 AS2018 TENET-1 196.32.96.0/20 AS6453 GLOBEINTERNET TATA Communications 196.202.224.0/21 AS8818 TELE Greenland Autonomous System 198.1.2.0/24 AS4761 INDOSAT-INP-AP INDOSAT Internet Network Provider 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET-1 198.54.92.0/24 AS2018 TENET-1 198.54.222.0/24 AS2018 TENET-1 198.97.72.0/21 AS27064 DDN-ASNBLK1 - DoD Network Information Center 198.97.96.0/19 AS27064 DDN-ASNBLK1 - DoD Network Information Center 198.97.240.0/20 AS27064 DDN-ASNBLK1 - DoD Network Information Center 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 198.169.0.0/16 AS803 SASKTEL - Saskatchewan Telecommunications 198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services 199.10.0.0/16 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.0.0/21 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.128.0/18 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.130.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.131.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.132.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DoD Network Information Center 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DoD Network Information Center 199.114.142.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.144.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.148.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.150.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.114.156.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.114.160.0/24 AS1733 CENTAF-SWA - 754th Electronic Systems Group 199.121.0.0/16 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.123.0.0/18 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.123.16.0/20 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.123.80.0/21 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 199.202.216.0/21 AS577 BACOM - Bell Canada 199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business 201.229.64.0/22 AS11816 SetarNet 202.6.176.0/20 AS24316 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.72.40.0/24 AS38205 202.72.41.0/24 AS38205 202.72.47.0/24 AS38205 202.73.144.0/20 AS4788 TMNET-AS-AP TM Net, Internet Service Provider 202.80.192.0/20 AS2706 HKSUPER-HK-AP Pacific Internet (Hong Kong) Limited 202.86.252.0/22 AS4748 RESOLINK-AS-AP Resources Link Network Limited 202.86.252.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.94.70.0/24 AS9837 POWERTEL-AP Powertel Ltd 202.122.120.0/21 AS17494 BTTB-AS-AP Telecom Operator & Internet Service Provider as well 202.124.195.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.133.73.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.140.160.0/24 AS4841 202.140.161.0/24 AS4841 202.140.162.0/24 AS4841 202.140.163.0/24 AS4841 202.140.164.0/24 AS4841 202.140.165.0/24 AS4841 202.140.166.0/24 AS4841 202.140.167.0/24 AS4841 202.140.168.0/24 AS4841 202.140.169.0/24 AS4841 202.140.170.0/24 AS4841 202.140.171.0/24 AS4841 202.140.172.0/24 AS4841 202.140.173.0/24 AS4841 202.140.174.0/24 AS4841 202.140.175.0/24 AS4841 202.140.180.0/24 AS7540 HKCIX-AS-AP HongKong Commercial Internet Exchange 202.140.181.0/24 AS7540 HKCIX-AS-AP HongKong Commercial Internet Exchange 202.140.182.0/24 AS7540 HKCIX-AS-AP HongKong Commercial Internet Exchange 202.150.227.0/24 AS17727 NAPINFO-AS-AP PT. NAP Info Lintas Nusa 202.181.32.0/24 AS4645 ASN-HKNET-AP HKNet Co. Ltd 203.12.45.0/24 AS4854 NETSPACE-AS-AP Netspace Online Systems 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.83.224.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 203.83.226.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 203.83.233.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 203.83.234.0/24 AS4739 CIX-ADELAIDE-AS Internode Systems Pty Ltd 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecommunications Ltd 203.112.111.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.113.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.114.0/24 AS4802 ASN-IINET iiNet Limited 203.112.116.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.117.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.118.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.119.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.120.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.121.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.127.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.128.128.0/19 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 203.128.128.0/24 AS23849 CNNIC-NET263-AP Beijing Capital-online science development Co.,Ltd. 203.152.154.0/23 AS9583 SIFY-AS-IN Sify Limited 204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.9.217.0/24 AS4323 TWTC - tw telecom holdings, inc. 204.9.218.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc. 204.13.140.0/22 AS7270 NET2PHONE - Net2Phone Corp. 204.13.140.0/24 AS7270 NET2PHONE - Net2Phone Corp. 204.13.142.0/24 AS7270 NET2PHONE - Net2Phone Corp. 204.13.143.0/24 AS7270 NET2PHONE - Net2Phone Corp. 204.13.184.0/23 AS35967 204.13.186.0/23 AS35967 204.13.186.0/24 AS35967 204.13.187.0/24 AS35967 204.16.120.0/23 AS12077 204.16.122.0/23 AS12077 204.19.14.0/23 AS577 BACOM - Bell Canada 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 205.189.134.0/24 AS11814 CYBERSURF - Cybersurf Inc. 205.210.145.0/24 AS11814 CYBERSURF - Cybersurf Inc. 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 207.174.0.0/16 AS13790 INTERNAP-BLK3 - Internap Network Services Corporation 207.174.130.0/24 AS13345 ROCKYNET-COM - Rockynet.com, Inc 207.174.131.0/24 AS30715 NETRACK - Netrack, Inc. 207.174.132.0/23 AS30715 NETRACK - Netrack, Inc. 207.174.137.0/24 AS13345 ROCKYNET-COM - Rockynet.com, Inc 207.174.138.0/23 AS13345 ROCKYNET-COM - Rockynet.com, Inc 207.174.140.0/22 AS13345 ROCKYNET-COM - Rockynet.com, Inc 207.174.151.0/24 AS11500 PEAKPEAK - Peak to Peak Internet 207.174.152.0/22 AS30715 NETRACK - Netrack, Inc. 207.174.157.0/24 AS13345 ROCKYNET-COM - Rockynet.com, Inc 207.174.158.0/24 AS11500 PEAKPEAK - Peak to Peak Internet 207.174.173.0/24 AS16618 AS-HFS-CAVION - Harland Financial Solutions, Inc. 207.174.175.0/24 AS13345 ROCKYNET-COM - Rockynet.com, Inc 207.174.177.0/24 AS11500 PEAKPEAK - Peak to Peak Internet 207.174.178.0/24 AS11500 PEAKPEAK - Peak to Peak Internet 207.174.182.0/24 AS29831 FONENET - FONE NET, LLC 207.174.188.0/22 AS30715 NETRACK - Netrack, Inc. 207.174.192.0/24 AS29831 FONENET - FONE NET, LLC 207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc. 207.174.201.0/24 AS13345 ROCKYNET-COM - Rockynet.com, Inc 207.174.202.0/24 AS13345 ROCKYNET-COM - Rockynet.com, Inc 207.174.210.0/23 AS16618 AS-HFS-CAVION - Harland Financial Solutions, Inc. 207.174.211.0/24 AS16618 AS-HFS-CAVION - Harland Financial Solutions, Inc. 207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC 207.204.168.0/24 AS15150 BELLTECH-AS - BELLWETHER TECHNOLOGY CORPORATION 207.204.222.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 209.54.93.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 209.54.111.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 209.54.123.0/24 AS6062 NETPLEX - NETPLEX 209.54.240.0/21 AS10887 BPSI-AS - BPSI Internet Services 209.74.96.0/19 AS10912 INTERNAP-BLK - Internap Network Services Corporation 209.140.90.0/24 AS14461 NTSL - NET SOLUTIONS 209.140.224.0/21 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.234.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.235.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.236.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.237.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.238.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.239.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.141.16.0/21 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.141.48.0/22 AS14461 NTSL - NET SOLUTIONS 209.145.192.0/18 AS3043 AMPHIB-AS - Amphibian Media Corporation 209.222.5.0/24 AS26699 PSI-CT - Printing For Systems Inc 209.222.6.0/24 AS26699 PSI-CT - Printing For Systems Inc 209.236.64.0/19 AS7911 LVLT-7911 - Level 3 Communications, Inc. 209.236.96.0/19 AS7911 LVLT-7911 - Level 3 Communications, Inc. 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 216.37.114.0/23 AS3549 GBLX Global Crossing Ltd. 216.37.120.0/23 AS13377 216.99.16.0/24 AS6395 LVLT-6395 - Level 3 Communications, Inc. 216.99.20.0/24 AS6395 LVLT-6395 - Level 3 Communications, Inc. 216.172.198.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.172.199.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. 216.210.86.0/24 AS577 BACOM - Bell Canada 216.240.240.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.241.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.251.207.0/24 AS1239 SPRINTLINK - Sprint 217.78.71.0/24 AS12491 IPPLANET-AS IPPlanet 217.78.72.0/24 AS12491 IPPLANET-AS IPPlanet 217.78.73.0/24 AS12491 IPPLANET-AS IPPlanet Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

13 years, 3 months

Cisco Security Advisory: Cisco IOS Software Secure Copy Privilege Escalation Vulnerability

by Cisco Systems Product Security Incident Response Team

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS Software Secure Copy Privilege Escalation Vulnerability Advisory ID: cisco-sa-20090325-scp http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml Revision 1.0 For Public Release 2009 March 25 1600 UTC (GMT) - --------------------------------------------------------------------- Summary ======= The server side of the Secure Copy (SCP) implementation in Cisco IOS software contains a vulnerability that could allow authenticated users with an attached command-line interface (CLI) view to transfer files to and from a Cisco IOS device that is configured to be an SCP server, regardless of what users are authorized to do, per the CLI view configuration. This vulnerability could allow valid users to retrieve or write to any file on the device's file system, including the device's saved configuration and Cisco IOS image files, even if the CLI view attached to the user does not allow it. This configuration file may include passwords or other sensitive information. The Cisco IOS SCP server is an optional service that is disabled by default. CLI views are a fundamental component of the Cisco IOS Role-Based CLI Access feature, which is also disabled by default. Devices that are not specifically configured to enable the Cisco IOS SCP server, or that are configured to use it but do not use role-based CLI access, are not affected by this vulnerability. This vulnerability does not apply to the Cisco IOS SCP client feature. Cisco has released free software updates that address this vulnerability. There are no workarounds available for this vulnerability apart from disabling either the SCP server or the CLI view feature if these services are not required by administrators. This advisory is posted at the following link: http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml Note: The March 25, 2009, Cisco IOS Security Advisory bundled publication includes eight Security Advisories. All of the advisories address vulnerabilities in Cisco IOS Software. Each advisory lists the releases that correct the vulnerability or vulnerabilities in the advisory. The following table lists releases that correct all Cisco IOS Software vulnerabilities that have been published in Cisco Security Advisories on March 25, 2009, or earlier. http://www.cisco.com/warp/public/707/cisco-sa-20090325-bundle.shtml Individual publication links are listed below: * Cisco IOS cTCP Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml * Cisco IOS Software Multiple Features IP Sockets Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ip.shtml * Cisco IOS Software Mobile IP and Mobile IPv6 Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-mobileip.shtml * Cisco IOS Software Secure Copy Privilege Escalation Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml * Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml * Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-tcp.shtml * Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml * Cisco IOS Software WebVPN and SSLVPN Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml Affected Products ================= Vulnerable Products +------------------ Cisco devices running an affected Cisco IOS software release, configured to offer SCP server functionality, and configured to use role-based ACL access are affected by this issue. A device running a vulnerable Cisco IOS software release is affected if its configuration is similar to the following: parser view <view name> <Definition of the CLI view> ! username <user ID> view <view name> secret <some secret> ! ip scp server enable In the above configuration snippet, the parser view command defines a view that specifies what commands users in that view can execute. The username command defines a local user and attaches, via the view keyword, the previously defined view to the user. And finally, the ip scp server enable command enables the Cisco IOS SCP server. The absence of the username command does not guarantee that the device's configuration is not affected by this vulnerability because the name of a CLI view can be supplied by means of an Authentication, Authorization, and Accounting (AAA) server by using the cli-view-name attribute. Note: The CLI view attached to a user can be supplied by a AAA server. When inspecting a device's configuration to determine if it is affected by this vulnerability it is better to check if the SCP service is enabled (ip scp server enabled command) and whether there are any CLI views defined (parser view command). The Cisco IOS SCP server and role-based CLI access features are disabled by default. The SCP server functionality is only available on encryption-capable images. Encryption-capable images are those that contain either a "k8" or "k9" in the image name, for example, "C7200-ADVSECURITYK9-M". Devices that do not run encryption-capable images are not vulnerable. If a device is running an encryption-capable image, the presence in the configuration of the ip scp server enable command, the existence of CLI views (parser view command), and whether there are users (local or remote) attached to these views will determine if the device is affected. To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the show version command to display the system banner. The system banner confirms that the device is running Cisco IOS Software by displaying text similar to "Cisco Internetwork Operating System Software" or "Cisco IOS Software." The image name displays in parentheses, followed by "Version" and the Cisco IOS Software release name. Other Cisco devices do not have the show version command or may provide different output. The following example identifies a Cisco product that is running Cisco IOS Software Release 12.3(26) with an installed image name of C2500-IS-L: Router#show version Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by cisco Systems, Inc. Compiled Mon 17-Mar-08 14:39 by dchih !--- output truncated The following example identifies a Cisco product that is running Cisco IOS Software Release 12.4(20)T with an installed image name of C1841-ADVENTERPRISEK9-M: Router#show version Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by Cisco Systems, Inc. Compiled Thu 10-Jul-08 20:25 by prod_rel_team !--- output truncated Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS Reference Guide" at the following link: http://www.cisco.com/warp/public/620/1.html Cisco IOS XE Software is also affected by this vulnerability. Products Confirmed Not Vulnerable +-------------------------------- Cisco devices that do not run Cisco IOS software are not affected. Cisco IOS devices that do not have the SCP server feature enabled, or that make use of the feature but do not have the role-based CLI feature enabled, are not affected. Cisco IOS XR Software is not affected. No other Cisco products are currently known to be affected by this vulnerability. Details ======= SCP is a protocol similar to the Remote Copy (RCP) protocol, which allows the transfer of files between systems. The main difference between SCP and RCP is that in SCP, all aspects of the file transfer session, including authentication, occur in encrypted form, which makes SCP a more secure alternative than RCP. SCP relies on the Secure Shell (SSH) protocol, which uses TCP port 22 by default. The Role-Based CLI Access feature allows the network administrator to define "views". Views are sets of operational commands and configuration capabilities that provide selective or partial access to Cisco IOS software EXEC and configuration (Config) mode commands. Views restrict user access to Cisco IOS command-line interface (CLI) and configuration information; that is, a view can define what commands are accepted and what configuration information is visible. For more information about the Role-Based CLI Access feature, reference http://www.cisco.com/en/US/docs/ios/12_3t/12_3t7/feature/guide/gtclivws.html The server side of the SCP implementation in Cisco IOS software contains a vulnerability that allows authenticated users with an attached command-line interface (CLI) view to transfer files to and from a Cisco IOS device that is configured to be a SCP server, regardless of what users are authorized to do, per the CLI view configuration. This vulnerability could allow authenticated users to retrieve or write to any file on the device's file system, including the device's saved configuration and Cisco IOS image files. This configuration file may include passwords or other sensitive information. In the affected configuration presented in the Affected Products section, users confined to a CLI view can elevate their privileges by using SCP to write to the device's configuration. Note that a view can be attached to a user when defining the user in the local database (via the username <user name> view ... command), or by passing the attribute cli-view-name from an AAA server. This vulnerability does not allow for authentication bypass; login credentials are verified and access is only granted if a valid username and password is provided. This vulnerability may cause authorization to be bypassed. This vulnerability is documented in the Cisco Bug ID CSCsv38166 and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2009-0637. Vulnerability Scoring Details ============================== Cisco has provided scores for the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0. CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response. Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks. Cisco has provided an FAQ to answer additional questions regarding CVSS at http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at http://intellishield.cisco.com/security/alertmanager/cvss CSCsv38166 - SCP + views (role-based CLI) allows privilege escalation CVSS Base Score - 9.0 Access Vector - Network Access Complexity - Low Authentication - Single Confidentiality Impact - Complete Integrity Impact - Complete Availability Impact - Complete CVSS Temporal Score - 7.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed Impact ====== Successful exploitation of the vulnerability described in this advisory may allow valid but unauthorized users to retrieve or write to any file on the device's file system, including the device's saved configuration and Cisco IOS image files. This configuration file may include passwords or other sensitive information. Software Versions and Fixes =========================== When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution. In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance. Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Recommended Release" column indicates the releases which have fixes for all the published vulnerabilities at the time of this Advisory. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "Recommended Releases" column of the table. +-------------------------------------------------------------------+ | Major | Availability of Repaired Releases | | Release | | |------------+------------------------------------------------------| | Affected | | Recommended | | 12.0-Based | First Fixed Release | Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.0 based releases | |-------------------------------------------------------------------| | Affected | | Recommended | | 12.1-Based | First Fixed Release | Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.1 based releases | |-------------------------------------------------------------------| | Affected | | Recommended | | 12.2-Based | First Fixed Release | Release | | Releases | | | |------------+------------------------------------+-----------------| | 12.2 | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2B | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2BC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2BW | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2BX | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2BY | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2BZ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2CX | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2CY | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2CZ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2DA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2DD | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2DX | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2EW | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2EWA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2EX | Vulnerable; migrate to any release | 12.2(44)SE6 | | | in 12.2SEG | | |------------+------------------------------------+-----------------| | 12.2EY | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+------------------------------------+-----------------| | 12.2EZ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2FX | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2FY | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2FZ | Not Vulnerable | | |------------+------------------------------------+-----------------| | | | 12.2(33)SRC4; | | 12.2IRA | Vulnerable; first fixed in 12.2SRC | Available on | | | | 18-MAY-2009 | |------------+------------------------------------+-----------------| | | | 12.2(33)SRC4; | | 12.2IRB | Vulnerable; first fixed in 12.2SRC | Available on | | | | 18-MAY-2009 | |------------+------------------------------------+-----------------| | 12.2IXA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2IXB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2IXC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2IXD | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2IXE | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2IXF | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2IXG | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2JA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2JK | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2MB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2MC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2S | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SB | 12.2(33)SB4 | 12.2(33)SB4 | |------------+------------------------------------+-----------------| | 12.2SBC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SCA | Vulnerable; first fixed in 12.2SCB | 12.2(33)SCB1 | |------------+------------------------------------+-----------------| | 12.2SCB | 12.2(33)SCB1 | 12.2(33)SCB1 | |------------+------------------------------------+-----------------| | | 12.2(50)SE | | | 12.2SE | | 12.2(44)SE6 | | | 12.2(44)SE6 | | |------------+------------------------------------+-----------------| | 12.2SEA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SEB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SEC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SED | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SEE | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SEF | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SEG | Not Vulnerable | | |------------+------------------------------------+-----------------| | | 12.2(52)SG; Available on | 12.2(52)SG; | | 12.2SG | 15-MAY-2009 | Available on | | | | 15-MAY-2009 | |------------+------------------------------------+-----------------| | 12.2SGA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SL | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SM | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SO | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SQ | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.2SRA | Not Vulnerable | | |------------+------------------------------------+-----------------| | | | 12.2(33)SRC4; | | | | Available on | | | | 18-MAY-2009 | | 12.2SRB | Vulnerable; first fixed in 12.2SRC | | | | | 12.2(33)SRB5a; | | | | Available on | | | | 3-April-2009 | |------------+------------------------------------+-----------------| | | 12.2(33)SRC4; Available on | 12.2(33)SRC4; | | 12.2SRC | 18-MAY-2009 | Available on | | | | 18-MAY-2009 | |------------+------------------------------------+-----------------| | 12.2SRD | 12.2(33)SRD1 | 12.2(33)SRD1 | |------------+------------------------------------+-----------------| | 12.2STE | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.2SU | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SV | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SVA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SVC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SVD | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SVE | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SW | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SX | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SXA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SXB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SXD | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SXE | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SXF | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SXH | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SXI | 12.2(33)SXI1 | 12.2(33)SXI1 | |------------+------------------------------------+-----------------| | 12.2SY | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2SZ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2T | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2TPC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XD | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XE | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XF | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XG | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XH | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XI | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XJ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XK | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XL | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XM | Not Vulnerable | | |------------+------------------------------------+-----------------| | | | 12.2(33)SB4 | | | | | | | | 12.2(33)SRD1 | | 12.2XN | Vulnerable; first fixed in 12.2SRC | | | | | 12.2(33)SRC4; | | | | Available on | | | | 18-MAY-2009 | |------------+------------------------------------+-----------------| | | | 12.2(33)SRD1 | | | | | | 12.2XNA | Vulnerable; first fixed in 12.2SRD | 12.2(33)SRC4; | | | | Available on | | | | 18-MAY-2009 | |------------+------------------------------------+-----------------| | 12.2XNB | 12.2(33)XNB3 | 12.2(33)XNB3 | |------------+------------------------------------+-----------------| | 12.2XNC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XO | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XQ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XR | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XS | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XT | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XU | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XV | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2XW | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YD | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YE | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YF | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YG | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YH | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YJ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YK | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YL | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YM | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YN | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YO | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YP | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YQ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YR | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YS | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YT | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YU | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YV | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YW | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YX | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YY | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2YZ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZD | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZE | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZF | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZG | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZH | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZJ | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZL | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZP | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZU | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZX | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZY | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.2ZYA | Not Vulnerable | | |------------+------------------------------------+-----------------| | Affected | | Recommended | | 12.3-Based | First Fixed Release | Release | | Releases | | | |------------+------------------------------------+-----------------| | 12.3 | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3B | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3BC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3BW | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3EU | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3JA | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.3JEA | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.3JEB | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.3JEC | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3JK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.3JL | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3JX | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3T | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.3TPC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3VA | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.3XA | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3XB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3XC | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3XD | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3XE | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.3XF | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3XG | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.3XI | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+------------------------------------+-----------------| | 12.3XJ | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3XK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3XL | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3XQ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(18e) | | | | | | 12.3XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3XS | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3XU | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.3XW | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3XX | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3XY | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.3XZ | Not Vulnerable | | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YD | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.3YF | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YG | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YH | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YI | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YJ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.3YM | 12.3(14)YM13 | 12.3(14)YM13 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YQ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YS | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3YU | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.3YX | 12.3(14)YX14 | 12.3(14)YX14 | |------------+------------------------------------+-----------------| | 12.3YZ | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.3ZA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | Affected | | Recommended | | 12.4-Based | First Fixed Release | Release | | Releases | | | |------------+------------------------------------+-----------------| | | 12.4(18e) | 12.4(18e) | | | | | | 12.4 | 12.4(23a); Available on | 12.4(23a); | | | 30-APR-2009 | Available on | | | | 30-APR-2009 | |------------+------------------------------------+-----------------| | 12.4JA | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4JDA | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4JK | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4JL | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4JMA | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4JMB | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4JX | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4MD | 12.4(11)MD7 | 12.4(11)MD7 | |------------+------------------------------------+-----------------| | 12.4MR | 12.4(19)MR2 | 12.4(19)MR2 | |------------+------------------------------------+-----------------| | 12.4SW | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | | 12.4(24)T | | | | | 12.4(22)T1 | | | 12.4(20)T2 | | | 12.4T | | 12.4(15)T9; | | | 12.4(22)T1 | Available on | | | | 29-APR-2009 | | | 12.4(15)T9; Available on | | | | 29-APR-2009 | | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XB | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XC | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | 12.4(4)XD12; Available on | 12.4(4)XD12; | | 12.4XD | 27-MAR-2009 | Available on | | | | 27-MAR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XE | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XF | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | 12.4(20)T2 | | | 12.4XG | | 12.4(15)T9; | | | 12.4(22)T1 | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XJ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | Releases prior to 12.4(15)XL4 are | | | 12.4XL | vulnerable, release 12.4(15)XL4 | 12.4(15)XL4 | | | and later are not vulnerable; | | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XM | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.4XN | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4XP | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4XQ | 12.4(15)XQ2 | 12.4(15)XQ2 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XR | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.4XV | Vulnerable; contact TAC | | |------------+------------------------------------+-----------------| | 12.4XW | 12.4(11)XW10 | 12.4(11)XW10 | |------------+------------------------------------+-----------------| | | | 12.4(22)T1 | | | | | | 12.4XY | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+------------------------------------+-----------------| | 12.4XZ | 12.4(15)XZ2 | 12.4(15)XZ2 | |------------+------------------------------------+-----------------| | 12.4YA | 12.4(20)YA2 | 12.4(20)YA3 | |------------+------------------------------------+-----------------| | 12.4YB | Not Vulnerable | | |------------+------------------------------------+-----------------| | 12.4YD | Not Vulnerable | | +-------------------------------------------------------------------+ Workarounds =========== If the Cisco IOS SCP server functionality is not needed then the vulnerability described in this document can be mitigated by disabling the SCP server or the CLI view feature. The SCP server can be disabled by executing the following command in global configuration mode: no ip scp server enable If the SCP server cannot be disabled due to operational concerns, then no workarounds exist. The risk posed by this vulnerability can be mitigated by following the best practices detailed in "Cisco Guide to Harden Cisco IOS Devices" at http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a008… Please refer to the Obtaining Fixed Software section of this advisory for appropriate solutions to resolve this vulnerability. Due to the nature of this vulnerability, networking best practices like access control lists (ACLs) and Control Plane Policing (CoPP) that restrict access to a device to certain IP addresses or subnetworks may not be effective. If access is already granted to a specific IP address or subnetwork, a user with low privileges will be able to establish an SCP session with the device, which would allow the user to exploit this vulnerability. Obtaining Fixed Software ======================== Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for software upgrades. Customers with Service Contracts +------------------------------- Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com Customers using Third Party Support Organizations +------------------------------------------------ Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory. The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed. Customers without Service Contracts +---------------------------------- Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows. * +1 800 553 2447 (toll free from within North America) * +1 408 526 7209 (toll call from anywhere in the world) * e-mail: tac(a)cisco.com Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC. Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages. Exploitation and Public Announcements ===================================== The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was reported to Cisco by Kevin Graham. Cisco would like to thank Mr. Graham for reporting this vulnerability and working with us towards coordinated disclosure of the vulnerability. Status of this Notice: FINAL ============================ THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors. Distribution ============ This advisory is posted on Cisco's worldwide website at : http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients. * cust-security-announce(a)cisco.com * first-bulletins(a)lists.first.org * bugtraq(a)securityfocus.com * vulnwatch(a)vulnwatch.org * cisco(a)spot.colorado.edu * cisco-nsp(a)puck.nether.net * full-disclosure(a)lists.grok.org.uk * comp.dcom.sys.cisco(a)newsgate.cisco.com Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates. Revision History ================ +---------------------------------------+ | Revision | | Initial | | 1.0 | 2009-March-25 | public | | | | release | +---------------------------------------+ Cisco Security Procedures ========================= Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.… This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAknKUbQACgkQ86n/Gc8U/uBoggCdGbEAh9pGrV/ApbhENou5MF4M vTIAn03h9J//T0V6BZBxwwS2hKs/JIXi =JGEE -----END PGP SIGNATURE-----

13 years, 3 months

Cisco Security Advisory: Cisco IOS Software Mobile IP and Mobile IPv6 Vulnerabilities

by Cisco Systems Product Security Incident Response Team

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS Software Mobile IP and Mobile IPv6 Vulnerabilities Advisory ID: cisco-sa-20090325-mobileip http://www.cisco.com/warp/public/707/cisco-sa-20090325-mobileip.shtml Revision 1.0 For Public Release 2009 March 25 1600 UTC (GMT) - --------------------------------------------------------------------- Summary ======= Devices that are running Cisco IOS Software and configured for Mobile IP Network Address Translation (NAT) Traversal feature or Mobile IPv6 are vulnerable to a denial of service (DoS) attack that may result in a blocked interface. Cisco has released free software updates that address these vulnerabilities. This advisory is posted at the following link http://www.cisco.com/warp/public/707/cisco-sa-20090325-mobileip.shtml Note: The March 25, 2009, Cisco IOS Security Advisory bundled publication includes eight Security Advisories. All of the advisories address vulnerabilities in Cisco IOS Software. Each advisory lists the releases that correct the vulnerability or vulnerabilities in the advisory. The following table lists releases that correct all Cisco IOS Software vulnerabilities that have been published in Cisco Security Advisories on March 25, 2009, or earlier. http://www.cisco.com/warp/public/707/cisco-sa-20090325-bundle.shtml Individual publication links are listed below: * Cisco IOS cTCP Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml * Cisco IOS Software Multiple Features IP Sockets Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ip.shtml * Cisco IOS Software Mobile IP and Mobile IPv6 Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-mobileip.shtml * Cisco IOS Software Secure Copy Privilege Escalation Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml * Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml * Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-tcp.shtml * Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml * Cisco IOS Software WebVPN and SSLVPN Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml Affected Products ================= Devices that are running an affected version of Cisco IOS Software and configured for Mobile IP NAT Traversal feature or Mobile IPv6 are vulnerable. Vulnerable Products +------------------ Devices running Cisco IOS Software and configured for Mobile IP NAT Traversal feature will have a line similar to the following in the output of the show running-config command: ip mobile home-agent nat traversal [...] or ip mobile foreign-agent nat traversal [...] or ip mobile router-service collocated registration nat traversal [...] Devices running Cisco IOS Software and configured for Mobile IPv6 will have a line similar to the following in the output of the show running-config command: ipv6 mobile home-agent To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the show version command to display the system banner. The system banner confirms that the device is running Cisco IOS Software by displaying text similar to "Cisco Internetwork Operating System Software" or "Cisco IOS Software." The image name displays in parentheses, followed by "Version" and the Cisco IOS Software release name. Other Cisco devices do not have the show version command or may provide different output. The following example identifies a Cisco product that is running Cisco IOS Software Release 12.3(26) with an installed image name of C2500-IS-L: Router#show version Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by cisco Systems, Inc. Compiled Mon 17-Mar-08 14:39 by dchih !--- output truncated The following example identifies a Cisco product that is running Cisco IOS Software Release 12.4(20)T with an installed image name of C1841-ADVENTERPRISEK9-M: Router#show version Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by Cisco Systems, Inc. Compiled Thu 10-Jul-08 20:25 by prod_rel_team !--- output truncated Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS Reference Guide" at the following link: http://www.cisco.com/warp/public/620/1.html Products Confirmed Not Vulnerable +-------------------------------- Cisco IOS XR is not affected by these vulnerabilities. Cisco IOS XE is not affected by these vulnerabilities. No other Cisco products are currently known to be affected by these vulnerabilities. Details ======= Mobile IP is part of both IPv4 and IPv6 standards. Mobile IP allows a host device to be identified by a single IP address even though the device may move its physical point of attachment from one network to another. Regardless of movement between different networks, connectivity at the different points is achieved seamlessly without user intervention. Roaming from a wired network to a wireless or wide-area network is also possible. More information on Mobile IPv6 can be found at the following link: http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-mobile.html The Mobile IP Support NAT Traversal feature is documented in RFC 3519. It introduces an alternative method for tunneling Mobile IP data traffic. New extensions in the Mobile IP registration request and reply messages have been added for establishing User Datagram Protocol (UDP) tunneling. This feature allows mobile devices in collocated mode that use a private IP address (RFC 1918) or foreign agents (FAs) that use a private IP address for the care-of address (CoA) to establish a tunnel and traverse a NAT-enabled router with mobile node (MN) data traffic from the home agent (HA). More information on Mobile IP NAT Traversal feature can be found at the following link: http://www.cisco.com/en/US/docs/ios/12_3t/12_3t8/feature/guide/gtnatmip.html Devices that are running an affected version of Cisco IOS Software and configured for Mobile IPv6 or Mobile IP NAT Traversal feature are affected by a DoS vulnerability. A successful exploitation of this vulnerability could cause an interface to stop processing traffic until the system is restarted. Offending packets need to be destined to the router for a successful exploit. These vulnerabilities are documented in the Cisco Bug IDs CSCsm97220 and CSCso05337 and have been assigned Common Vulnerabilities and Exposures (CVE) IDs CVE-2009-0633 and CVE-2009-0634. Vulnerability Scoring Details ============================= Cisco has provided scores for the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0. CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response. Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks. Cisco has provided an FAQ to answer additional questions regarding CVSS at http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at http://intellishield.cisco.com/security/alertmanager/cvss CSCsm97220 - Input queue wedged by MIPv6 packets CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed CSCso05337 - HA: Input queue wedged by ICMP packet CVSS Base Score - 7.1 Access Vector - Network Access Complexity - Medium Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete CVSS Temporal Score - 5.9 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed Impact ====== Successful exploitation of the vulnerability may result in an interface to stop processing traffic, causing a DoS condition. Software Versions and Fixes =========================== When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution. In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance. Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Recommended Release" column indicates the releases which have fixes for all the published vulnerabilities at the time of this Advisory. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "Recommended Releases" column of the table. +-------------------------------------------------------------------+ | Major | Availability of Repaired Releases | | Release | | |------------+------------------------------------------------------| | Affected | | Recommended | | 12.0-Based | First Fixed Release | Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.0 based releases | |-------------------------------------------------------------------| | Affected | | Recommended | | 12.1-Based | First Fixed Release | Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.1 based releases | |-------------------------------------------------------------------| | Affected | | Recommended | | 12.2-Based | First Fixed Release | Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.2 based releases | |-------------------------------------------------------------------| | Affected | | Recommended | | 12.3-Based | First Fixed Release | Release | | Releases | | | |------------+--------------------------------------+---------------| | 12.3 | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3B | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3BC | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3BW | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3EU | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JEA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JEB | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JEC | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JK | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JL | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JX | Not Vulnerable | | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3T | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.3TPC | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3VA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XB | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XC | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XD | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XE | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XF | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XG | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XI | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XJ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XK | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XL | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XQ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XR | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XS | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XU | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XW | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XX | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XY | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XZ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YD | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YF | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YG | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YH | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YI | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YJ | Not Vulnerable | | |------------+--------------------------------------+---------------| | | Releases prior to 12.3(11)YK3 are | 12.4(22)T1 | | | vulnerable, release 12.3(11)YK3 and | | | 12.3YK | later are not vulnerable; first | 12.4(15)T9; | | | fixed in 12.4T | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.3YM | 12.3(14)YM13 | 12.3(14)YM13 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3YQ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3YS | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3YT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3YU | Vulnerable; migrate to 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | Releases prior to 12.3(14)YX10 are | | | 12.3YX | vulnerable, release 12.3(14)YX10 and | 12.3(14)YX14 | | | later are not vulnerable; | | |------------+--------------------------------------+---------------| | 12.3YZ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3ZA | Not Vulnerable | | |------------+--------------------------------------+---------------| | Affected | | Recommended | | 12.4-Based | First Fixed Release | Release | | Releases | | | |------------+--------------------------------------+---------------| | | | 12.4(18e) | | | 12.4(18e) | | | 12.4 | | 12.4(23a); | | | 12.4(23a); Available on 30-APR-2009 | Available on | | | | 30-APR-2009 | |------------+--------------------------------------+---------------| | 12.4JA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JDA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JK | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JL | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JMA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JMB | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JX | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4MD | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4MR | 12.4(19)MR | 12.4(19)MR2 | |------------+--------------------------------------+---------------| | 12.4SW | Not Vulnerable | | |------------+--------------------------------------+---------------| | | 12.4(20)T | 12.4(22)T1 | | | | | | 12.4T | 12.4(15)T8 | 12.4(15)T9; | | | | Available on | | | 12.4(15)T9; Available on 29-APR-2009 | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | 12.4(15)T8 | 12.4(22)T1 | | | | | | 12.4XB | 12.4(20)T | 12.4(15)T9; | | | | Available on | | | 12.4(15)T9; Available on 29-APR-2009 | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XC | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | 12.4(4)XD12; Available on | 12.4(4)XD12; | | 12.4XD | 27-MAR-2009 | Available on | | | | 27-MAR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XE | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XF | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.4XG | Not Vulnerable | | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XJ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.4XK | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4XL | 12.4(15)XL4 | 12.4(15)XL4 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XM | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.4XN | Vulnerable; contact TAC | | |------------+--------------------------------------+---------------| | 12.4XP | Vulnerable; contact TAC | | |------------+--------------------------------------+---------------| | 12.4XQ | 12.4(15)XQ2 | 12.4(15)XQ2 | |------------+--------------------------------------+---------------| | 12.4XR | 12.4(15)XR4 | 12.4(22)T1 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.4XV | Vulnerable; contact TAC | | |------------+--------------------------------------+---------------| | 12.4XW | 12.4(11)XW10 | 12.4(11)XW10 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XY | 12.4(15)XY4 | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.4XZ | 12.4(15)XZ1 | 12.4(15)XZ2 | |------------+--------------------------------------+---------------| | 12.4YA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4YB | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4YD | Not Vulnerable | | +-------------------------------------------------------------------+ Workarounds =========== The following mitigation and identification methods have been identified for these vulnerabilities: Infrastructure Access Control Lists +---------------------------------- Although it is often difficult to block traffic that transits a network, it is possible to identify traffic that should never be allowed to target infrastructure devices and block that traffic at the border of networks. Infrastructure Access Control Lists (iACLs) are a network security best practice and should be considered as a long-term addition to good network security as well as a workaround for these specific vulnerabilities. The iACL example below should be included as part of the deployed infrastructure access-list which will protect all devices with IP addresses in the infrastructure IP address range: IPv4 example: !--- Anti-spoofing entries are shown here. !--- Deny special-use address sources. !--- Refer to RFC 3330 for additional special use addresses. access-list 110 deny ip host 0.0.0.0 any access-list 110 deny ip 127.0.0.0 0.255.255.255 any access-list 110 deny ip 192.0.2.0 0.0.0.255 any access-list 110 deny ip 224.0.0.0 31.255.255.255 any !--- Filter RFC 1918 space. access-list 110 deny ip 10.0.0.0 0.255.255.255 any access-list 110 deny ip 172.16.0.0 0.15.255.255 any access-list 110 deny ip 192.168.0.0 0.0.255.255 any !--- Deny your space as source from entering your AS. !--- Deploy only at the AS edge. access-list 110 deny ip YOUR_CIDR_BLOCK any !--- Permit BGP. access-list 110 permit tcp host bgp_peer host router_ip eq bgp access-list 110 permit tcp host bgp_peer eq bgp host router_ip !--- Deny access to internal infrastructure addresses. access-list 110 deny ip any INTERNAL_INFRASTRUCTURE_ADDRESSES !--- Permit transit traffic. access-list 110 permit ip any any IPv6 example: !--- Configure the access-list. ipv6 access-list iacl !--- Deny your space as source from entering your AS. !--- Deploy only at the AS edge. deny ipv6 YOUR_CIDR_BLOCK_IPV6 any !--- Permit multiprotocol BGP. permit tcp host bgp_peer_ipv6 host router_ipv6 eq bgp permit tcp host bgp_peer_ipv6 eq bgp host router_ipv6 !--- Deny access to internal infrastructure addresses. deny ipv6 any INTERNAL_INFRASTRUCTURE_ADDRESSES_IPV6 !--- Permit transit traffic. permit ipv6 any any The white paper entitled "Protecting Your Core: Infrastructure Protection Access Control Lists" presents guidelines and recommended deployment techniques for infrastructure protection access lists. This white paper can be obtained at the following link http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a0… Cisco IOS Embedded Event Manager +------------------------------- It is possible to detect blocked interface queues with a Cisco IOS Embedded Event Manager (EEM) policy. EEM provides event detection and reaction capabilities on a Cisco IOS device. EEM can alert administrators of blocked interfaces with email, a syslog message, or a Simple Network Management Protocol (SNMP) trap. A sample EEM policy that uses syslog to alert administrators of blocked interfaces is available at Cisco Beyond, an online community dedicated to EEM. A sample script is available at the following link: http://forums.cisco.com/eforum/servlet/EEM?page=eem&fn=script&scriptId=981 More information about EEM is available from Cisco.com at the following link: http://www.cisco.com/en/US/products/ps6815/products_ios_protocol_group_home… Obtaining Fixed Software ======================== Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for software upgrades. Customers with Service Contracts +------------------------------- Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com Customers using Third Party Support Organizations +------------------------------------------------ Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory. The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed. Customers without Service Contracts +---------------------------------- Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows. * +1 800 553 2447 (toll free from within North America) * +1 408 526 7209 (toll call from anywhere in the world) * e-mail: tac(a)cisco.com Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC. Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages. Exploitation and Public Announcements ===================================== The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was reported to Cisco by a customer. Status of this Notice: FINAL ============================ THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors. Distribution ============ This advisory is posted on Cisco's worldwide website at : http://www.cisco.com/warp/public/707/cisco-sa-20090325-mobileip.shtml In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients. * cust-security-announce(a)cisco.com * first-bulletins(a)lists.first.org * bugtraq(a)securityfocus.com * vulnwatch(a)vulnwatch.org * cisco(a)spot.colorado.edu * cisco-nsp(a)puck.nether.net * full-disclosure(a)lists.grok.org.uk * comp.dcom.sys.cisco(a)newsgate.cisco.com Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates. Revision History ================ +---------------------------------------+ | Revision | | Initial | | 1.0 | 2009-Mar-25 | public | | | | release | +---------------------------------------+ Cisco Security Procedures ========================= Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.… This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAknKUa8ACgkQ86n/Gc8U/uBD0ACfYblb5Nscx1zIWMLeihiaZAe7 TtsAoIGgf8/ubiolVwSDmu/tCTgH8skm =YxAj -----END PGP SIGNATURE-----

13 years, 3 months

Cisco Security Advisory: Cisco IOS Software WebVPN and SSLVPN Vulnerabilities

by Cisco Systems Product Security Incident Response Team

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS Software WebVPN and SSLVPN Vulnerabilities Advisory ID: cisco-sa-20090325-webvpn http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml Revision 1.0 For Public Release 2009 March 25 1600 UTC (GMT) - --------------------------------------------------------------------- Summary ======= Cisco IOS software contains two vulnerabilities within the Cisco IOS WebVPN or Cisco IOS SSLVPN feature (SSLVPN) that can be remotely exploited without authentication to cause a denial of service condition. Both vulnerabilities affect both Cisco IOS WebVPN and Cisco IOS SSLVPN features: 1. Crafted HTTPS packet will crash device. 2. SSLVPN sessions cause a memory leak in the device. Cisco has released free software updates that address these vulnerabilities. There are no workarounds that mitigate these vulnerabilities. This advisory is posted at the following link: http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml Note: The March 25, 2009, Cisco IOS Security Advisory bundled publication includes eight Security Advisories. All of the advisories address vulnerabilities in Cisco IOS Software. Each advisory lists the releases that correct the vulnerability or vulnerabilities in the advisory. The following table lists releases that correct all Cisco IOS Software vulnerabilities that have been published in Cisco Security Advisories on March 25, 2009, or earlier. http://www.cisco.com/warp/public/707/cisco-sa-20090325-bundle.shtml Individual publication links are listed below: * Cisco IOS cTCP Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml * Cisco IOS Software Multiple Features IP Sockets Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ip.shtml * Cisco IOS Software Mobile IP and Mobile IPv6 Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-mobileip.shtml * Cisco IOS Software Secure Copy Privilege Escalation Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml * Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml * Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-tcp.shtml * Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml * Cisco IOS Software WebVPN and SSLVPN Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml Affected Products ================= Vulnerable Products +------------------ Devices running affected versions of Cisco IOS software are affected if configured with SSLVPN. To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the "show version" command to display the system banner. The system banner confirms that the device is running Cisco IOS Software by displaying text similar to "Cisco Internetwork Operating System Software" or "Cisco IOS Software." The image name displays in parentheses, followed by "Version" and the Cisco IOS Software release name. Other Cisco devices do not have the "show version" command or may provide different output. The following example identifies a Cisco product that is running Cisco IOS Software Release 12.3(26) with an installed image name of C2500-IS-L: Router#show version Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by cisco Systems, Inc. Compiled Mon 17-Mar-08 14:39 by dchih <output truncated> The following example shows a product that is running Cisco IOS Software release 12.4(20)T with an image name of C1841-ADVENTERPRISEK9-M: Router#show version Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by Cisco Systems, Inc. Compiled Thu 10-Jul-08 20:25 by prod_rel_team <output truncated> Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS Reference Guide" at the following link: http://www.cisco.com/warp/public/620/1.html To determine that SSLVPN is enabled on your device, log in to the device and issue the command-line interface (CLI) command "show running-config | include webvpn". If the device returns any output this means that SSLVPN is configured on the device and the device may be vulnerable. Vulnerable configurations vary depending on whether the device is supporting Cisco IOS WebVPN (introduced in Release 12.3 (14)T) or Cisco IOS SSLVPNs (introduced in Release 12.4(6)T). The following methods describe how to confirm if the device is vulnerable: If the output from "show running-config | include webvpn" contains "webvpn enable" then the device is configured with the original Cisco IOS WebVPN. The only way to confirm the device is vulnerable is to examine the output of "show running-config" to confirm that webvpn is enabled via the command "webvpn enable" and that a "ssl trustpoint" has been configured. The following example shows a vulnerable device configured with Cisco IOS WebVPN: webvpn enable ! webvpn ssl trustpoint TP-self-signed-29742012 If the output from "show running-config | include webvpn" contains "webvpn gateway <word>" then the device is supporting the Cisco IOS SSLVPN feature. A device is vulnerable if it has the "inservice" command in at least one of the "webvpn gateway" sections. The following example shows a vulnerable device configured with Cisco IOS SSLVPN: Router# show running | section webvpn webvpn gateway Gateway ip address 10.1.1.1 port 443 ssl trustpoint Gateway-TP inservice ! Router# A device that supports the Cisco IOS SSLVPN is not vulnerable if it has no "webvpn gateways" configured or all the configured "webvpn gateways" contain the "no inservice" "webvpn gateway" command. Products Confirmed Not Vulnerable +-------------------------------- The following products are not affected by this vulnerability: * Cisco ASA 5500 Series Adaptive Security Appliances * Cisco IOS XR Software * Cisco IOS XE Software No other Cisco products are currently known to be affected by these vulnerabilities. Details ======= The Cisco SSLVPN feature provides remote access to enterprise sites by users from anywhere on the Internet. The SSLVPN provides users with secure access to specific enterprise applications, such as e-mail and web browsing, without requiring them to have VPN client software installed on their end-user devices. The WebVPN Enhancements feature (Cisco IOS SSLVPN), released in Cisco IOS Release 12.4(6)T, obsoletes the commands and configurations originally put forward in Cisco IOS WebVPN. Further information about Cisco IOS WebVPN is available in the "Cisco IOS Software Release 12.3T WebVPN feature guide" at the following link: http://www.cisco.com/en/US/docs/ios/12_3t/12_3t14/feature/guide/g_sslvpn.ht… Further information about Cisco IOS SSLVPN is available in the "Cisco IOS Software Release 12.4T SSLVPN feature guide" at the following link: http://www.cisco.com/en/US/docs/ios/12_4t/12_4t11/htwebvpn.html Details regarding these two vulnerabilities in Cisco IOS devices that are running affected versions of system software are: Crafted HTTPS packet will crash device +-------------------------------------- A device configured for SSLVPN may reload or hang when it receives a specially crafted HTTPS packet. Completion of the 3-way handshake to the associated TCP port number of the SSLVPN feature is required in order for the vulnerability to be successfully exploited, however authentication is "not" required. The default TCP port number for SSLVPN is 443. This vulnerability is documented in Cisco bug ID CSCsk62253 and Common Vulnerabilities and Exposures (CVE) identifier CVE-2009-0626 has been assigned to this vulnerability. SSLVPN sessions cause a memory leak in the device +------------------------------------------------ A device configured for SSLVPN may leak transmission control blocks (TCBs) when processing an abnormally disconnected SSL session. Continued exploitation may result in the device depleting its memory resources and result in a crash of the device. Authentication is "not" required to exploit this vulnerability. The memory leak can be detected by running the command "show tcp brief", like in the following example: Router#show tcp brief TCB Local Address Foreign Address (state) 468BBDC0 192.168.0.22.443 192.168.0.33.19794 CLOSEWAIT 482D4730 192.168.0.22.443 192.168.0.33.22092 CLOSEWAIT 482779A4 192.168.0.22.443 192.168.0.33.16978 CLOSEWAIT 4693DEBC 192.168.0.22.443 192.168.0.33.21580 CLOSEWAIT 482D3418 192.168.0.22.443 192.168.0.33.17244 CLOSEWAIT 482B8ACC 192.168.0.22.443 192.168.0.33.16564 CLOSEWAIT 46954EB0 192.168.0.22.443 192.168.0.33.19532 CLOSEWAIT 468BA9B8 192.168.0.22.443 192.168.0.33.15781 CLOSEWAIT 482908C4 192.168.0.22.443 192.168.0.33.19275 CLOSEWAIT 4829D66C 192.168.0.22.443 192.168.0.33.19314 CLOSEWAIT 468A2D94 192.168.0.22.443 192.168.0.33.14736 CLOSEWAIT 4688F590 192.168.0.22.443 192.168.0.33.18786 CLOSEWAIT 4693CBA4 192.168.0.22.443 192.168.0.33.12176 CLOSEWAIT 4829ABC4 192.168.0.22.443 192.168.0.33.39629 CLOSEWAIT 4691206C 192.168.0.22.443 192.168.0.33.17818 CLOSEWAIT 46868224 192.168.0.22.443 192.168.0.33.16774 CLOSEWAIT 4832BFAC 192.168.0.22.443 192.168.0.33.39883 CLOSEWAIT 482D10CC 192.168.0.22.443 192.168.0.33.13677 CLOSEWAIT 4829B120 192.168.0.22.443 192.168.0.33.20870 CLOSEWAIT 482862FC 192.168.0.22.443 192.168.0.33.17035 CLOSEWAIT 482EC13C 192.168.0.22.443 192.168.0.33.16053 CLOSEWAIT 482901D8 192.168.0.22.443 192.168.0.33.16200 CLOSEWAIT In the output above, those Transmission Control Blocks (TCBs) in the state CLOSEWAIT will not go away and represent memory leaks. Please note that only TCP connections with a local TCP port of 443 (the well-known port for HTTPS) are relevant. This vulnerability is documented in Cisco bug ID CSCsw24700 and Common Vulnerabilities and Exposures (CVE) identifier CVE-2009-0628 has been assigned to this vulnerability. Vulnerability Scoring Details ============================= Cisco has provided scores for the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0. CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response. Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks. Cisco has provided an FAQ to answer additional questions regarding CVSS at http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at http://intellishield.cisco.com/security/alertmanager/cvss CSCsk62253 - Crafted HTTPS packet will crash device. CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed CSCsw24700 - SSLVPN sessions cause a memory leak in the device. CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed Impact ====== Successful exploitation of any of the two vulnerabilities may result in the device crashing, not accepting any new SSLVPN sessions or a memory leak. Repeated exploitation may result in an extended denial of service (DoS) condition. Software Versions and Fixes =========================== When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution. In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance. Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Recommended Release" column indicates the releases which have fixes for all the published vulnerabilities at the time of this Advisory. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "Recommended Releases" column of the table. +-------------------------------------------------------------------+ | Major | Availability of Repaired Releases | | Release | | |------------+------------------------------------------------------| | Affected | | Recommended | | 12.0-Based | First Fixed Release | Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.0 based releases | |-------------------------------------------------------------------| | Affected | | Recommended | | 12.1-Based | First Fixed Release | Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.1 based releases | |-------------------------------------------------------------------| | Affected | | Recommended | | 12.2-Based | First Fixed Release | Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.2 based releases | |-------------------------------------------------------------------| | Affected | | Recommended | | 12.3-Based | First Fixed Release | Release | | Releases | | | |------------+--------------------------------------+---------------| | 12.3 | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3B | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3BC | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3BW | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3EU | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JEA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JEB | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JEC | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JK | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JL | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3JX | Not Vulnerable | | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3T | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.3TPC | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3VA | Vulnerable; contact TAC | | |------------+--------------------------------------+---------------| | 12.3XA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XB | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XC | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XD | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XE | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XF | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XG | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XI | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XJ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XK | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XL | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XQ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XR | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XS | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XU | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XW | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XX | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XY | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3XZ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YD | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YF | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YG | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YH | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YI | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YJ | Not Vulnerable | | |------------+--------------------------------------+---------------| | | Releases prior to 12.3(11)YK3 are | 12.4(22)T1 | | | vulnerable, release 12.3(11)YK3 and | | | 12.3YK | later are not vulnerable; first | 12.4(15)T9; | | | fixed in 12.4T | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.3YM | Not Vulnerable | | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3YQ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3YS | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3YT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.3YU | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.3YX | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3YZ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.3ZA | Not Vulnerable | | |------------+--------------------------------------+---------------| | Affected | | Recommended | | 12.4-Based | First Fixed Release | Release | | Releases | | | |------------+--------------------------------------+---------------| | | | 12.4(18e) | | | 12.4(18e) | | | 12.4 | | 12.4(23a); | | | 12.4(23a); Available on 30-APR-2009 | Available on | | | | 30-APR-2009 | |------------+--------------------------------------+---------------| | 12.4JA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JDA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JK | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JL | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JMA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JMB | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4JX | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4MD | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4MR | 12.4(16)MR | 12.4(19)MR2 | |------------+--------------------------------------+---------------| | 12.4SW | Not Vulnerable | | |------------+--------------------------------------+---------------| | | 12.4(15)T7 | 12.4(22)T1 | | | | | | 12.4T | 12.4(20)T | 12.4(15)T9; | | | | Available on | | | 12.4(15)T9; Available on 29-APR-2009 | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XB | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XC | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | | 12.4(4)XD12; Available on | 12.4(4)XD12; | | 12.4XD | 27-MAR-2009 | Available on | | | | 27-MAR-2009 | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XE | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.4XF | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4XG | Not Vulnerable | | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XJ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.4XK | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4XL | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4XM | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4XN | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4XP | Vulnerable; contact TAC | | |------------+--------------------------------------+---------------| | 12.4XQ | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4XR | Not Vulnerable | | |------------+--------------------------------------+---------------| | | | 12.4(22)T1 | | | | | | 12.4XT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+--------------------------------------+---------------| | 12.4XV | Vulnerable; contact TAC | | |------------+--------------------------------------+---------------| | 12.4XW | 12.4(11)XW10 | 12.4(11)XW10 | |------------+--------------------------------------+---------------| | 12.4XY | 12.4(15)XY4 | 12.4(22)T1 | |------------+--------------------------------------+---------------| | 12.4XZ | 12.4(15)XZ1 | 12.4(15)XZ2 | |------------+--------------------------------------+---------------| | 12.4YA | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4YB | Not Vulnerable | | |------------+--------------------------------------+---------------| | 12.4YD | Not Vulnerable | | +-------------------------------------------------------------------+ Workarounds =========== There are no workarounds for the vulnerabilities described in this advisory. Obtaining Fixed Software ======================== Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for software upgrades. Customers with Service Contracts +------------------------------- Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com Customers using Third Party Support Organizations +------------------------------------------------ Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory. The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed. Customers without Service Contracts +---------------------------------- Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows. * +1 800 553 2447 (toll free from within North America) * +1 408 526 7209 (toll call from anywhere in the world) * e-mail: tac(a)cisco.com Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC. Refer to http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages. Exploitation and Public Announcements ===================================== The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities described in this advisory. These vulnerabilities were discovered when handling customer support calls. Status of this Notice: FINAL ============================ THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors. Distribution ============ This advisory is posted on Cisco's worldwide website at : http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients. * cust-security-announce(a)cisco.com * first-teams(a)first.org * bugtraq(a)securityfocus.com * vulnwatch(a)vulnwatch.org * cisco(a)spot.colorado.edu * cisco-nsp(a)puck.nether.net * full-disclosure(a)lists.grok.org.uk * comp.dcom.sys.cisco(a)newsgate.cisco.com Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates. Revision History ================ +---------------------------------------+ | Revision | | Initial | | 1.0 | 2009-March-25 | public | | | | release. | +---------------------------------------+ Cisco Security Procedures ========================= Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.… This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAknKUdcACgkQ86n/Gc8U/uALXwCgmcIGTSzRIHpHRbVVmMNqPFT4 +CIAn27HdwwpkhVDgEIWTMsIX6NE4BgR =+f8D -----END PGP SIGNATURE-----

13 years, 3 months

Cisco Security Advisory: Cisco IOS cTCP Denial of Service Vulnerability

by Cisco Systems Product Security Incident Response Team

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS cTCP Denial of Service Vulnerability Advisory ID: cisco-sa-20090325-ctcp http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml Revision 1.0 For Public Release 2009 March 25 1600 UTC (GMT) - --------------------------------------------------------------------- Summary ======= A series of TCP packets may cause a denial of service (DoS) condition on Cisco IOS devices that are configured as Easy VPN servers with the Cisco Tunneling Control Protocol (cTCP) encapsulation feature. Cisco has released free software updates that address this vulnerability. No workarounds are available; however, the IPSec NAT traversal (NAT-T) feature can be used as an alternative. This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml Note: The March 25, 2009, Cisco IOS Security Advisory bundled publication includes eight Security Advisories. All of the advisories address vulnerabilities in Cisco IOS Software. Each advisory lists the releases that correct the vulnerability or vulnerabilities in the advisory. The following table lists releases that correct all Cisco IOS Software vulnerabilities that have been published in Cisco Security Advisories on March 25, 2009, or earlier. http://www.cisco.com/warp/public/707/cisco-sa-20090325-bundle.shtml Individual publication links are listed below: * Cisco IOS cTCP Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml * Cisco IOS Software Multiple Features IP Sockets Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ip.shtml * Cisco IOS Software Mobile IP and Mobile IPv6 Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-mobileip.shtml * Cisco IOS Software Secure Copy Privilege Escalation Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml * Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml * Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-tcp.shtml * Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml * Cisco IOS Software WebVPN and SSLVPN Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml Affected Products ================= Vulnerable Products +------------------ Cisco IOS devices running versions 12.4(9)T or later and configured for Cisco Tunneling Control Protocol (cTCP) encapsulation for EZVPN server are vulnerable. Note: The cTCP encapsulation feature was introduced in Cisco IOS version 12.4(9)T. The cTCP encapsulation feature is disabled by default. Cisco IOS devices configured for EZVPN client are not affected by this vulnerability. Only devices configured as EZVPN servers are vulnerable. To configure the cTCP encapsulation feature for Easy VPN, use the crypto ctcp command in global configuration mode. You can optionally specify the port number that the device will listen to with the crypto ctcp port <port> command. Up to ten numbers can be configured and the port value can be from 1 through 65535. If the port keyword is not configured, the default port number is 10000. In the following example, the Cisco IOS device is configured to listen for cTCP messages on port 10000. crypto ctcp port 10000 Note: The port keyword is configured only on the Cisco IOS device acting as an EZVPN server. To determine the version of the Cisco IOS software running on a Cisco product, log in to the device and issue the show version command to display the system banner. Cisco IOS software will identify itself as "Internetwork Operating System Software" or simply "IOS". On the next line of output, the image name will be displayed between parentheses, followed by "Version" and the IOS release name. Other Cisco devices will not have the show version command or will give different output. The following example identifies a Cisco product running Cisco IOS Software release 12.3(26) with an installed image name of C2500-IS-L: Router#show version Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by cisco Systems, Inc. Compiled Mon 17-Mar-08 14:39 by dchih <output truncated> The next example shows a product running Cisco IOS Software release 12.4(20)T with an image name of C1841-ADVENTERPRISEK9-M: Router#show version Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by Cisco Systems, Inc. Compiled Thu 10-Jul-08 20:25 by prod_rel_team <output truncated> Additional information on the Cisco IOS release naming conventions can be found on the document entitled "White Paper: Cisco IOS Reference Guide", which is available at http://www.cisco.com/warp/public/620/1.html Products Confirmed Not Vulnerable +-------------------------------- Cisco IOS devices that are not configured for cTCP are not affected by this vulnerability. The Cisco ASA and Cisco VPN 3000 series concentrators are not vulnerable. Cisco IOS devices configured as EZVPN clients are not affected by this vulnerability. The Cisco VPN Client is not vulnerable. Cisco IOS-XR and Cisco IOS-XE software are not affected by this vulnerability. No other Cisco products are currently known to be affected by this vulnerability. Details ======= The Cisco Tunneling Control Protocol (cTCP) feature is used by Easy VPN remote device operating in an environment in which standard IPSec does not function transparently without modification to existing firewall rules. The cTCP traffic is actually TCP traffic. Cisco IOS cTCP packets are Internet Key Exchange (IKE) or Encapsulating Security Payload (ESP) packets that are being transmitted over TCP. A vulnerability exists where a series of TCP packets may cause a Cisco IOS device that is configured as an Easy VPN server with the cTCP encapsulation feature to run out of memory. This vulnerability is documented in Cisco Bug IDs CSCsr16693 and CSCsu21828; and has been assigned the Common Vulnerabilities and Exposures (CVE) identifier CVE-2009-0635. Vulnerability Scoring Details ============================= Cisco has provided scores for the vulnerability in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0. CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response. Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks. Cisco has provided an FAQ to answer additional questions regarding CVSS at http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at http://intellishield.cisco.com/security/alertmanager/cvss. CSCsr16693 - cTCP server may crash when processing a series of TCP packets CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed CSCsu21828 - Cisco IOS Device may crash with cTCP enabled CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed Impact ====== Successful exploitation of this vulnerability may cause the affected device to run out of memory. Repeated exploitation will result in a denial of service (DoS) condition. Software Versions and Fixes =========================== When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution. In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance. Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Recommended Release" column indicates the releases which have fixes for all the published vulnerabilities at the time of this Advisory. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "Recommended Releases" column of the table. +-------------------------------------------------------------------+ | Major Release | Availability of Repaired Releases | |-------------------+-----------------------------------------------| | Affected | | | | 12.0-Based | First Fixed Release | Recommended Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.0 based releases | |-------------------------------------------------------------------| | Affected | | | | 12.1-Based | First Fixed Release | Recommended Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.1 based releases | |-------------------------------------------------------------------| | Affected | | | | 12.2-Based | First Fixed Release | Recommended Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.2 based releases | |-------------------------------------------------------------------| | Affected | | | | 12.3-Based | First Fixed Release | Recommended Release | | Releases | | | |-------------------------------------------------------------------| | There are no affected 12.3 based releases | |-------------------------------------------------------------------| | Affected | | | | 12.4-Based | First Fixed Release | Recommended Release | | Releases | | | |-------------------+-----------------------+-----------------------| | 12.4 | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4JA | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4JDA | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4JK | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4JL | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4JMA | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4JMB | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4JX | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4MD | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4MR | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4SW | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | | 12.4(20)T2 | 12.4(22)T1 | | 12.4T | | | | | 12.4(15)T9; Available | 12.4(15)T9; Available | | | on 29-APR-2009 | on 29-APR-2009 | |-------------------+-----------------------+-----------------------| | 12.4XA | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XB | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XC | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XD | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XE | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XF | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XG | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XJ | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XK | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XL | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XM | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XN | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XP | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XQ | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XR | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XT | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XV | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XW | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XY | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4XZ | 12.4(15)XZ2 | 12.4(15)XZ2 | |-------------------+-----------------------+-----------------------| | 12.4YA | 12.4(20)YA2 | 12.4(20)YA3 | |-------------------+-----------------------+-----------------------| | 12.4YB | Not Vulnerable | | |-------------------+-----------------------+-----------------------| | 12.4YD | Not Vulnerable | | +-------------------------------------------------------------------+ Workarounds =========== No workarounds are available. As an alternative, the IPSec NAT traversal (NAT-T) feature can be used. The IPSec NAT-T feature introduces support for IP Security (IPSec) traffic to travel through Network Address Translation (NAT) or Port Address Translation (PAT) points in the network by addressing many known incompatabilites between NAT and IPSec. Note: The NAT-T feature was introduced in Cisco IOS version 12.2(13) T. NAT Traversal is a feature that is auto detected by VPN devices. There are no configuration steps for a router running Cisco IOS Release 12.2(13)T and later. If both VPN devices are NAT-T capable, NAT Traversal is auto-detected and auto-negotiated. Note: When you enable NAT-T, the Cisco IOS device automatically opens UDP port 4500 on all IPSec enabled interfaces. Caution: Be aware that you may need to enable IPSec over UDP on Cisco VPN software clients to support NAT-T. Additionally, you may need to change firewall rules to allow UDP port 500 for Internet Key Exchange (IKE) and UDP port 4500 for NAT-T. For more information about NAT-T, refer to the white paper at: http://www.cisco.com/en/US/docs/ios/security/configuration/guide/sec_ipsec_… Additional mitigations that can be deployed on Cisco devices within the network are available in the Cisco Applied Mitigation Bulletin companion document for this advisory, which is available at the following link: http://www.cisco.com/warp/public/707/cisco-amb-20090325-ctcp.shtml Obtaining Fixed Software ======================== Cisco has released free software updates that address this vulnerability. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for software upgrades. Customers with Service Contracts +------------------------------- Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com. Customers using Third Party Support Organizations +------------------------------------------------ Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory. The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed. Customers without Service Contracts +---------------------------------- Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows. * +1 800 553 2447 (toll free from within North America) * +1 408 526 7209 (toll call from anywhere in the world) * e-mail: tac(a)cisco.com Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC. Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages. Exploitation and Public Announcements ===================================== The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was found during the resolution of a technical support service request. Status of this Notice: FINAL ============================ THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors. Distribution ============ This advisory is posted on Cisco's worldwide website at: http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients. * cust-security-announce(a)cisco.com * first-bulletins(a)lists.first.org * bugtraq(a)securityfocus.com * vulnwatch(a)vulnwatch.org * cisco(a)spot.colorado.edu * cisco-nsp(a)puck.nether.net * full-disclosure(a)lists.grok.org.uk * comp.dcom.sys.cisco(a)newsgate.cisco.com Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates. Revision History ================ +---------------------------------------+ | Revision | | Initial | | 1.0 | 2009-March-25 | public | | | | release. | +---------------------------------------+ Cisco Security Procedures ========================= Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.… This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAknKUaYACgkQ86n/Gc8U/uBSWwCbBgAQRNBNdft9MYK8bC1MP/Z4 4D8AnA7qaiFqAdeWWbS+p4K601XNoo4S =Rvhp -----END PGP SIGNATURE-----

13 years, 3 months

Cisco Security Advisory: Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability

by Cisco Systems Product Security Incident Response Team

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability Advisory ID: cisco-sa-20090325-udp http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml Revision 1.0 For Public Release 2009 March 25 1600 UTC (GMT) - --------------------------------------------------------------------- Summary ======= Several features within Cisco IOS Software are affected by a crafted UDP packet vulnerability. If any of the affected features are enabled, a successful attack will result in a blocked input queue on the inbound interface. Only crafted UDP packets destined for the device could result in the interface being blocked, transit traffic will not block the interface. Cisco has released free software updates that address this vulnerability. Workarounds that mitigate this vulnerability are available. This advisory is posted at the following link: http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml Note: The March 25, 2009, Cisco IOS Security Advisory bundled publication includes eight Security Advisories. All of the advisories address vulnerabilities in Cisco IOS Software. Each advisory lists the releases that correct the vulnerability or vulnerabilities in the advisory. The following table lists releases that correct all Cisco IOS Software vulnerabilities that have been published in Cisco Security Advisories on March 25, 2009, or earlier. http://www.cisco.com/warp/public/707/cisco-sa-20090325-bundle.shtml Individual publication links are listed below: * Cisco IOS cTCP Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml * Cisco IOS Software Multiple Features IP Sockets Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ip.shtml * Cisco IOS Software Mobile IP and Mobile IPv6 Vulnerabilities http://www.cisco.com/warp/public/707/ cisco-sa-20090325-mobileip.shtml * Cisco IOS Software Secure Copy Privilege Escalation Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml * Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml * Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-tcp.shtml * Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml * Cisco IOS Software WebVPN and SSLVPN Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml Affected Products ================= Vulnerable Products +------------------ Devices running affected versions of Cisco IOS Software and Cisco IOS XE Software are affected when running any of the following features: * IP Service Level Agreements (SLA) Responder * Session Initiation Protocol (SIP) * H.323 Annex E Call Signaling Transport * Media Gateway Control Protocol (MGCP) Details on how to see if the affected feature is enabled on a device, is provided within the details section of this advisory. To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the "show version" command to display the system banner. The system banner confirms that the device is running Cisco IOS Software by displaying text similar to "Cisco Internetwork Operating System Software" or "Cisco IOS Software." The image name displays in parentheses, followed by "Version" and the Cisco IOS Software release name. Other Cisco devices do not have the "show version" command or may provide different output. The following example identifies a Cisco product that is running Cisco IOS Software Release 12.3(26) with an installed image name of C2500-IS-L: Router#show version Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by cisco Systems, Inc. Compiled Mon 17-Mar-08 14:39 by dchih <output truncated> The following example shows a product that is running Cisco IOS Software release 12.4(20)T with an image name of C1841-ADVENTERPRISEK9-M: Router#show version Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by Cisco Systems, Inc. Compiled Thu 10-Jul-08 20:25 by prod_rel_team <output truncated> Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS Reference Guide" at the following link: http://www.cisco.com/warp/public/620/1.html Products Confirmed Not Vulnerable +-------------------------------- The following products and features are not affected by this vulnerability: * Cisco IOS XR Software * Service Assurance Agent (SAA) * Response Time Reporter (RTR) * No other feature or protocol on Cisco IOS is known to be affected No other Cisco products are currently known to be affected by this vulnerability. Details ======= A device is vulnerable if any of the features outlined below is configured and their associated UDP port number accessible. For each feature, in addition to inspecting the Cisco IOS device for vulnerable configurations, administrators can also use some show commands to determine if the Cisco IOS device is running processes that handle the UDP service, or if the device is listening on the affected UDP ports. Different versions of Cisco IOS Software have different methods of showing the UDP ports on which the Cisco IOS Software device is listening. The "show ip sockets" or "show udp" commands can be used to determine these ports. For each feature, one example is given using the above commands to show the affected UDP port number. Successful exploitation of this vulnerability can block an interface on the device. The interface type is not relevant for this vulnerability so all Ethernet based interfaces, ATM, Serial, POS and other types of interfaces can be affected. All defined sub interfaces under a main physical interface are affected if the main interface is blocked. If the attack originates over a sub interface, the main interface will block. A blocked interface will stop receiving any subsequent packets until it is unblocked. All other interfaces are not affected and they will continue receiving and transmitting packets. Only packets destined for a reachable configured IP address on any interface of the device can exploit this vulnerability. Transit traffic will not exploit this vulnerability. A symptom of this type of blocked queue is the failure of control-plane protocols such as routing protocols (OSPF, EIGRP, BGP, ISIS, etc.) and MPLS TDP/LDP to properly establish connections over an affected interface. Transit traffic may be affected once protocol timers expire on the affected device. In order to identify a blocked input interface, issue the "show interfaces" command, and search for the Input Queue line. The size of the input queue can continue to increase. If the current size, which is 76 in the example below, is equal or larger than the maximum size (default being 75), the input queue may be blocked. It is possible that a device receives a high rate of traffic destined to the control plane, and the full queue is only a transient event. In order to verify if the interface is actually blocked, shut down the interface with the shutdown interface configuration command and examine the input queue. If the input queue does not display 0 packets, the interface is blocked. Router#show interface ethernet 0/0 Ethernet0/0 is up, line protocol is up Hardware is AmdP2, address is 0050.500e.f1e0 (bia 0050.500e.f1e0) Internet address is 192.168.0.1/24 MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 1/255 Encapsulation ARPA, loopback not set, keepalive set (10 sec) ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:41, output 00:00:07, output hang never Last clearing of "show interface" counters 00:07:18 Input queue: 76/75/1091/0 (size/max/drops/flushes); Total output drops: 0 IP Service Level Agreements (SLAs) Responder +------------------------------------------- Devices configured with the Cisco IOS IP Service Level Agreements (SLAs) Responder for User Datagram Protocol (UDP) echo or jitter operations feature are vulnerable. Any device configured to act as a responder is vulnerable. The following shows two different vulnerable configurations. The first being a generic IP SLA responder: ip sla responder or ip sla monitor responder The following shows this second configuration with a more specific UDP responder configured: ip sla responder ip sla responder udp-echo ipaddress 10.10.10.10 port 1025 Service Assurance Agent (SAA) and Response Time Reporter (RTR) feature are "not" affected and use the "rtr" CLI command syntax. The following example shows a configuration, which is not vulnerable: rtr responder The following example shows a device listening on the default IP SLA control channel with the affected UDP port 1967. Router#show udp Proto Remote Port Local Port In Out Stat TTY OutputIF 17 0.0.0.0 0 10.2.6.1 1967 0 0 211 0 Further information about Cisco IOS IP SLAs is available in "Cisco IOS IP SLAs Configuration Guide, Release 12.4 - Cisco IOS IP SLAs Overview" at the following link: http://www.cisco.com/en/US/docs/ios/12_4/ip_sla/configuration/guide/hsoverv… Session Initiation Protocol (SIP) +-------------------------------- Note: For customers with devices enabled with SIP, please also consult the document "Cisco Security Advisory: Cisco IOS Session Initiation Protocol Denial of Service Vulnerability" at the following link: http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.html Cisco devices that process SIP messages are affected. Recent versions of Cisco IOS Software do not process SIP messages by default. Creating a "dial peer" via the command "dial-peer voice" with any option will start the SIP processes and cause Cisco IOS Software to begin processing SIP messages. Several features within Cisco Call Manager Express, such as ePhones, once configured will also automatically start the SIP process and the device will begin processing SIP messages. It is recommended if the device is running any voice configurations to confirm the existence of the SIP process with the "show ip socket" or "show udp" command. The following is one example of an affected configuration: dial-peer voice <Voice dial-peer tag> voip ... ! Note: Older versions of Cisco IOS Software were affected by a bug that caused Cisco IOS Software to process SIP messages even without being configured for SIP operation. Please refer to "Cisco Security Advisory: SIP Packets Reload IOS Devices with support for SIP" at the following link: http://www.cisco.com/warp/public/707/cisco-sa-20070131-sip.shtml The following example shows a device that will process SIP messages, on the default affected UDP port 5060: Router#show ip socket Proto Remote Port Local Port In Out Stat TTY OutputIF 17 0.0.0.0 0 192.168.0.2 5060 0 0 211 0 Further information about SIP, is available in the "Cisco IOS SIP Configuration Guide" at the following link: http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvf… H.323 Annex E Call Signaling Transport +------------------------------------- Cisco devices that are configured to support H.323 are affected. The affected protocol is H.323 Annex E Call Signaling Transport over UDP. ITU-T recommendation H.323 Annex E describes the signaling framework and wire-protocol for transporting H.225.0 call signaling messages over UDP. Recent versions of Cisco IOS Software do not open H.225.0 UDP port by default. Creating a "dial peer" via the command "dial-peer voice" with any option will open the H.225.0 UDP port. Several features within Cisco Call Manager Express, such as ePhones, once configured will also automatically start the H.323 process and the device will begin processing H.323 packets. It is recommended if the device is running any voice configurations to confirm the existence of the H.323 process with the "show ip socket" or "show udp" command. The following is one example of an affected configuration: dial-peer voice <Voice dial-peer tag> voip ... ! Note: Older versions of Cisco IOS Software were affected by a bug that caused Cisco IOS Software to listen on H.323 ports without being configured for H.323 operation. Please refer to Cisco bug ID: CSCsb25337 The following example shows a device that will process H.225.0 packets, on the default affected UDP port 2517: Router#show ip socket Proto Remote Port Local Port In Out Stat TTY OutputIF 17 0.0.0.0 0 192.168.0.2 2517 0 0 211 0 Further information about H.323, is available in the "Cisco IOS H.323 Configuration Guide" at the following link: http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/cisco_ios_h323_configuration… Media Gateway Control Protocol (MGCP) +------------------------------------ Devices configured with the MGCP feature are vulnerable. MGCP is enabled globally with the command "mgcp". The default listening port for MGCP is UDP 2427. The following example shows a vulnerable configuration: mgcp The following example shows a device that will process MGCP packets on the affected UDP ports: Router#show ip socket Proto Remote Port Local Port In Out Stat TTY OutputIF 17 192.168.0.1 2427 10.66.91.138 2427 0 0 211 0 Further information about MGCP is available in the "Configuring the Cisco IOS MGCP Gateway reference" at the following link: http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note0918… This vulnerability is documented in the following Cisco Bug ID: CSCsk64158 and has been assigned the Common Vulnerabilities and Exposures (CVE) identifiers CVE-2009-0631. Vulnerability Scoring Details ============================= Cisco has provided scores for the vulnerability in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0. CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response. Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks. Cisco has provided an FAQ to answer additional questions regarding CVSS at http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at http://intellishield.cisco.com/security/alertmanager/cvss CSCsk64158: Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed Impact ====== Successful exploitation of this vulnerability may cause the inbound interface to be blocked and will silently drop any received traffic. A reload of the device is required to restore normal functionality. Software Versions and Fixes =========================== When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution. In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance. Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Recommended Release" column indicates the releases which have fixes for all the published vulnerabilities at the time of this Advisory. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "Recommended Releases" column of the table. +-------------------------------------------------------------------+ | Major | Availability of Repaired Releases | | Release | | |------------+------------------------------------------------------| | Affected | | Recommended | | 12.0-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0 | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0DA | Vulnerable; first fixed in 12.2DA | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0DB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0DC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.0S | 12.0(32)S12 | 12.0(32)S12 | |------------+-------------------------------------+----------------| | 12.0SC | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | 12.0SL | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0SP | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.0ST | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | 12.0SX | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | 12.0SY | 12.0(32)SY8 | 12.0(32)SY8 | |------------+-------------------------------------+----------------| | 12.0SZ | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0T | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.0W | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.0WC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.0WT | Not Vulnerable | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.0XF | Not Vulnerable | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XG | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | Releases prior to 12.0(4)XI2 are | 12.4(18e) | | | vulnerable, release 12.0(4)XI2 and | | | 12.0XI | later are not vulnerable; first | 12.4(23a); | | | fixed in 12.4 | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XJ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XK | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XL | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XM | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XN | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XQ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XS | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XT | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XV | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | Affected | | Recommended | | 12.1-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1 | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.1AA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1AX | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | | | 12.1(22)EA13 | | 12.1AY | Vulnerable; first fixed in 12.1EA | | | | | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | | | 12.1(22)EA13 | | 12.1AZ | Vulnerable; first fixed in 12.1EA | | | | | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.1CX | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1DA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1DB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1DC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1E | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.1EA | 12.1(22)EA13 | 12.1(22)EA13 | |------------+-------------------------------------+----------------| | 12.1EB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.2(33)SCB1 | | 12.1EC | Vulnerable; first fixed in 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | 12.1EO | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1EU | Vulnerable; first fixed in 12.2SG | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | 12.1EV | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1EW | Vulnerable; migrate to 12.2SGA | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1EX | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.1EY | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1EZ | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1GA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1GB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1T | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XF | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XG | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XI | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XJ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XL | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XM | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XP | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XQ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XS | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XT | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XU | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XV | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XW | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XX | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XY | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XZ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | Releases prior to 12.1(5)YE6 are | 12.4(18e) | | | vulnerable, release 12.1(5)YE6 and | | | 12.1YE | later are not vulnerable; first | 12.4(23a); | | | fixed in 12.4 | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YF | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.1YI | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.1(22)EA13 | | 12.1YJ | Vulnerable; first fixed in 12.1EA | | | | | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | Affected | | Recommended | | 12.2-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2 | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2B | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to 12.2SCB or | 12.2(33)SCB1 | | 12.2BC | 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2BW | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2BX | Vulnerable; migrate to 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2BY | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2BZ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to 12.2SCB or | 12.2(33)SCB1 | | 12.2CX | 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to 12.2SCB or | 12.2(33)SCB1 | | 12.2CY | 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | 12.2CZ | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | 12.2(12)DA14; Available on | | | 12.2DA | 30-JUL-2009 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2DD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2DX | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2EW | Vulnerable; first fixed in 12.2SG | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | 12.2EWA | Vulnerable; first fixed in 12.2SG | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | 12.2EX | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2EY | 12.2(44)EY | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2EZ | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2FX | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2FY | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2FZ | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | 12.2IRA | Vulnerable; first fixed in 12.2SRC | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | 12.2IRB | Vulnerable; first fixed in 12.2SRC | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXA | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXB | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXC | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXD | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXE | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXF | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXG | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | 12.2JA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2JK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2MB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2MC | 12.2(15)MC2m | 12.2(15)MC2m | |------------+-------------------------------------+----------------| | 12.2S | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | | 12.2(31)SB14 | | | | | | | 12.2SB | 12.2(33)SB3 | 12.2(33)SB4 | | | | | | | 12.2(28)SB13 | | |------------+-------------------------------------+----------------| | 12.2SBC | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | 12.2SCA | Vulnerable; first fixed in 12.2SCB | 12.2(33)SCB1 | |------------+-------------------------------------+----------------| | 12.2SCB | 12.2(33)SCB1 | 12.2(33)SCB1 | |------------+-------------------------------------+----------------| | | 12.2(46)SE2 | | | | | | | 12.2SE | 12.2(44)SE5 | 12.2(44)SE6 | | | | | | | 12.2(50)SE | | |------------+-------------------------------------+----------------| | 12.2SEA | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEB | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEC | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SED | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEE | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEF | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEG | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | | | 12.2(52)SG; | | 12.2SG | 12.2(50)SG | Available on | | | | 15-MAY-2009 | |------------+-------------------------------------+----------------| | 12.2SGA | 12.2(31)SGA9 | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | 12.2SL | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2SM | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SO | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SQ | 12.2(44)SQ1 | | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | 12.2SRA | Vulnerable; first fixed in 12.2SRC | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | | | Available on | | | | 18-MAY-2009 | | 12.2SRB | Vulnerable; first fixed in 12.2SRC | | | | | 12.2(33)SRB5a; | | | | Available on | | | | 3-April-2009 | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | 12.2SRC | 12.2(33)SRC3 | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | 12.2SRD | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2STE | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2SU | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.2SV | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SVA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SVC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SVD | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SVE | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SW | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SX | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXA | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXB | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXD | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXE | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXF | 12.2(18)SXF16 | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | | 12.2(33)SXH5; Available on | 12.2(33)SXH5; | | 12.2SXH | 20-APR-2009 | Available on | | | | 20-APR-2009 | |------------+-------------------------------------+----------------| | 12.2SXI | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2SY | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | 12.2SZ | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2T | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2TPC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to 12.2SCB or | 12.2(33)SCB1 | | 12.2XF | 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XG | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XI | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XJ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XK | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XL | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XM | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.2(33)SB4 | | 12.2XN | Vulnerable; first fixed in 12.2SRC | | | | | 12.2(33)SRD1 | |------------+-------------------------------------+----------------| | 12.2XNA | Vulnerable; migrate to any release | 12.2(33)SRD1 | | | in 12.2SRD | | |------------+-------------------------------------+----------------| | 12.2XNB | 12.2(33)XNB1 | 12.2(33)XNB3 | |------------+-------------------------------------+----------------| | 12.2XNC | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2XO | 12.2(46)XO | 12.2(46)XO | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XQ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XS | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XT | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XU | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XV | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XW | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2YA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2YB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YD | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YE | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YF | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YG | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YH | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YJ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YK | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YL | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2YM | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.2YN | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YO | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2YP | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2YQ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YR | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YS | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2YT | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YU | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YV | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YW | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YX | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YY | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YZ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZA | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2ZB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZD | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2ZE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2ZF | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2ZG | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2ZH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2ZJ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZL | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZP | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | 12.2ZU | Vulnerable; first fixed in 12.2SXH | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | 12.2ZX | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | 12.2ZY | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZYA | 12.2(18)ZYA1 | 12.2(18)ZYA1 | |------------+-------------------------------------+----------------| | Affected | | Recommended | | 12.3-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.3 | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3B | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3BC | 12.3(23)BC6 | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3BW | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3EU | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.3JA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3JEA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3JEB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3JEC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3JK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3JL | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3JX | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3T | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3TPC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3VA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.3XA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.3XB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XC | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XD | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.3XE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.3XF | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XG | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3XI | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | 12.3XJ | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XL | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XQ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.3XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XS | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XU | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3XW | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XX | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XY | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XZ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YD | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3YF | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YG | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YH | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YI | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YJ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3YM | 12.3(14)YM13 | 12.3(14)YM13 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YQ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YS | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3YU | Vulnerable; first fixed in 12.4XB | 12.4(22)T1 | |------------+-------------------------------------+----------------| | 12.3YX | 12.3(14)YX14 | 12.3(14)YX14 | |------------+-------------------------------------+----------------| | 12.3YZ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3ZA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | Affected | | Recommended | | 12.4-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | 12.4(23) | 12.4(18e) | | | | | | 12.4 | 12.4(18e) | 12.4(23a); | | | | Available on | | | 12.4(23a); Available on 30-APR-2009 | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.4JA | 12.4(16b)JA1 | | |------------+-------------------------------------+----------------| | 12.4JDA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JK | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JL | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JMA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JMB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JX | Vulnerable; first fixed in 12.4JA | | |------------+-------------------------------------+----------------| | 12.4MD | 12.4(11)MD7 | 12.4(11)MD7 | |------------+-------------------------------------+----------------| | 12.4MR | 12.4(19)MR1 | 12.4(19)MR2 | |------------+-------------------------------------+----------------| | 12.4SW | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | 12.4(15)T8 | | | | | 12.4(22)T1 | | | 12.4(20)T2 | | | 12.4T | | 12.4(15)T9; | | | 12.4(22)T | Available on | | | | 29-APR-2009 | | | 12.4(15)T9; Available on | | | | 29-APR-2009 | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | 12.4(15)T8 | | | 12.4XB | | 12.4(15)T9; | | | 12.4(20)T2 | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XC | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | 12.4(4)XD12; Available on | 12.4(4)XD12; | | 12.4XD | 27-MAR-2009 | Available on | | | | 27-MAR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XE | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XF | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | 12.4(15)T8 | 12.4(22)T1 | | | | | | 12.4XG | 12.4(20)T2 | 12.4(15)T9; | | | | Available on | | | 12.4(22)T1 | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XJ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.4XL | 12.4(15)XL4 | 12.4(15)XL4 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XM | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.4XN | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4XP | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4XQ | 12.4(15)XQ2 | 12.4(15)XQ2 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XR | 12.4(15)XR4 | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.4XV | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4XW | 12.4(11)XW10 | 12.4(11)XW10 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XY | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.4XZ | 12.4(15)XZ2 | 12.4(15)XZ2 | |------------+-------------------------------------+----------------| | 12.4YA | 12.4(20)YA2 | 12.4(20)YA3 | |------------+-------------------------------------+----------------| | 12.4YB | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.4YD | Not Vulnerable | | +-------------------------------------------------------------------+ Workarounds =========== The following mitigations have been identified for this vulnerability; only packets destined for any configured IP address on the device can exploit this vulnerability. Transit traffic will not exploit this vulnerability. Disable Affected Listening Ports +------------------------------- If an affected feature is not required it can be explicitly disabled. Once disabled confirm the listening UDP port has been closed by entering the CLI command "show udp" or "show ip socket". Some features may require a reload of the device after disabling the feature in order to close the listening UDP port. For SIP it is possible to disable UDP listening if only TCP services are required. The following example shows how to disable SIP from listening on its associated UDP port. Warning: When applying this workaround to devices that are processing MGCP or H.323 calls, the device will not allow the stopping SIP processing while active calls are being processed. When possible, this workaround should be implemented during a maintenance window when active calls can be briefly stopped. Enter configuration commands, one per line. End with CNTL/Z. Router(config)#sip-ua Router(config-sip-ua)#no transport udp Router(config-sip-ua)#end For SIP it is possible to bind the process to a privately-addressed interface, with the command below. This will cause SIP to only listen on the internal interface, which may assist in limiting the exposure of this vulnerability: voice service voip sip bind control source-interface <int> bind media source-interface <int> Infrastructure Access Control Lists +---------------------------------- Warning: Because the features in this vulnerability utilize UDP as a transport, it is possible to spoof the sender's IP address, which may defeat ACLs that permit communication to these ports from trusted IP addresses. Unicast RPF should be considered to be used in conjunction to offer a better mitigation solution. Although it is often difficult to block traffic that transits a network, it is possible to identify traffic that should never be allowed to target infrastructure devices and block that traffic at the border of networks. Infrastructure Access Control Lists (iACLs) are a network security best practice and should be considered as a long-term addition to good network security as well as a workaround for this specific vulnerability. The iACL example below should be included as part of the deployed infrastructure access-list which will protect all devices with IP addresses in the infrastructure IP address range: !--- Only sections pertaining to features enabled on the device !--- need be configured. !--- !--- !--- Feature: IP SLAs UDP Responder !--- access-list 150 permit udp TRUSTED_SOURCE_ADDRESSES WILDCARD INFRASTRUCTURE_ADDRESSES WILDCARD eq 1967 !--- Deny IP SLAs UDP Responder traffic from all other sources !--- destined to infrastructure addresses. access-list 150 deny udp any INFRASTRUCTURE_ADDRESSES WILDCARD eq 1967 !--- !--- Feature: Session Initiation Protocol (SIP) !--- access-list 150 permit udp TRUSTED_SOURCE_ADDRESSES WILDCARD INFRASTRUCTURE_ADDRESSES WILDCARD eq 5060 !--- Deny SIP traffic from all other sources destined !--- to infrastructure addresses. access-list 150 deny udp any INFRASTRUCTURE_ADDRESSES WILDCARD eq 5060 !--- !--- Feature: H.323 Call Signaling !--- access-list 150 permit udp TRUSTED_SOURCE_ADDRESSES WILDCARD INFRASTRUCTURE_ADDRESSES WILDCARD eq 2517 !--- Deny H.323 Call Signaling traffic from all other sources !--- destined to infrastructure addresses. access-list 150 deny udp any INFRASTRUCTURE_ADDRESSES WILDCARD eq 2517 !--- !--- Feature: Media Gateway Control Protocol (MGCP) !--- access-list 150 permit udp TRUSTED_SOURCE_ADDRESSES WILDCARD INFRASTRUCTURE_ADDRESSES WILDCARD eq 2427 !--- Deny MGCP traffic from all other sources destined !--- to infrastructure addresses. access-list 150 deny udp any INFRASTRUCTURE_ADDRESSES WILDCARD eq 2427 !--- Permit/deny all other Layer 3 and Layer 4 traffic in !--- accordance with existing security policies and !--- configurations. Permit all other traffic to transit the !--- device. access-list 150 permit ip any any !--- Apply access-list to all interfaces (only one example !--- shown) interface serial 2/0 ip access-group 150 in The white paper entitled "Protecting Your Core: Infrastructure Protection Access Control Lists" presents guidelines and recommended deployment techniques for infrastructure protection access lists and is available at the following link http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a0… Control Plane Policing +--------------------- Warning: Because the features in this vulnerability utilizes UDP as a transport, it is possible to spoof the sender's IP address, which may defeat ACLs that permit communication to these ports from trusted IP addresses. Unicast RPF should be considered to be used in conjunction to offer better mitigation solution. Control Plane Policing (CoPP) can be used to block untrusted UDP traffic to the device. Cisco IOS software releases 12.0S, 12.2SX, 12.2S, 12.3T, 12.4, and 12.4T support the CoPP feature. CoPP can be configured on a device to protect the management and control planes and minimize the risk and effectiveness of direct infrastructure attacks by explicitly permitting only authorized traffic that is sent to infrastructure devices in accordance with existing security policies and configurations. The CoPP example below should be included as part of the deployed CoPP which will protect all devices with IP addresses in the infrastructure IP address range. !--- !--- Only sections pertaining to features enabled on the device !--- need be configured. !--- !--- !--- Feature: IP SLAs UDP Responder !--- access-list 150 deny udp TRUSTED_SOURCE_ADDRESSES WILDCARD any eq 1967 !--- !--- Deny IP SLAs UDP Responder traffic from all other sources !--- destined to the device control plane. !--- access-list 150 permit udp any any eq 1967 !--- !--- Feature: Session Initiation Protocol (SIP) !--- access-list 150 deny udp TRUSTED_SOURCE_ADDRESSES WILDCARD any eq 5060 !--- !--- Deny SIP traffic from all other sources destined !--- to the device control plane. !--- access-list 150 permit udp any any eq 5060 !--- !--- Feature: H.323 Call Signaling !--- access-list 150 deny udp TRUSTED_SOURCE_ADDRESSES WILDCARD any eq 2517 !--- !--- Deny H.323 call signaling traffic from all other sources !--- destined to the device control plane. !--- access-list 150 permit udp any any eq 2517 !--- !--- Feature: Media Gateway Control Protocol (MGCP) !--- access-list 150 deny udp TRUSTED_SOURCE_ADDRESSES WILDCARD any eq 2427 !--- !--- Deny MGCP traffic from all other sources destined !--- to the device control plane. !--- access-list 150 permit udp any any eq 2427 !--- !--- Permit (Police or Drop)/Deny (Allow) all other Layer3 and !--- Layer4 traffic in accordance with existing security policies !--- and configurations for traffic that is authorized to be sent !--- to infrastructure devices !--- Create a Class-Map for traffic to be policed by !--- the CoPP feature !--- class-map match-all drop-udp-class match access-group 150 !--- !--- Create a Policy-Map that will be applied to the !--- Control-Plane of the device. !--- policy-map drop-udp-traffic class drop-udp-class drop !--- !--- Apply the Policy-Map to the !--- Control-Plane of the device !--- control-plane service-policy input drop-udp-traffic In the above CoPP example, the access control list entries (ACEs) that match the potential exploit packets with the "permit" action result in these packets being discarded by the policy-map "drop" function, while packets that match the "deny" action (not shown) are not affected by the policy-map drop function. Please note that the policy-map syntax is different in the 12.2S and 12.0S Cisco IOS trains: policy-map drop-udp-traffic class drop-udp-class police 32000 1500 1500 conform-action drop exceed-action drop Additional information on the configuration and use of the CoPP feature can be found in the documents, "Control Plane Policing Implementation Best Practices" and "Cisco IOS Software Releases 12.2S - Control Plane Policing" at the following links: http://www.cisco.com/web/about/security/intelligence/coppwp_gs.html and http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gtrtlimt.html Additional mitigations that can be deployed on Cisco devices within the network are available in the "Cisco Applied Mitigation Bulletin" companion document for this advisory at the following link: http://www.cisco.com/warp/public/707/cisco-amb-20090325-sip-and-udp.shtml Exploit Detection +---------------- It is possible to detect blocked interface queues with an Cisco IOS Embedded Event Manager (EEM) policy. EEM provides event detection and reaction capabilities on a Cisco IOS device. EEM can alert administrators of blocked interfaces with email, a syslog message, or a Simple Network Management Protocol (SNMP) trap. A sample EEM policy that uses syslog to alert administrators of blocked interfaces is available at Cisco Beyond, an online community dedicated to EEM. A sample script is available at the following link: http://forums.cisco.com/eforum/servlet/EEM?page=eem&fn=script&scriptId=981 Further information about EEM is available from Cisco.com at the following link: http://www.cisco.com/en/US/products/ps6815/products_ios_protocol_group_home… Obtaining Fixed Software ======================== Cisco has released free software updates that address this vulnerability. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for software upgrades. Customers with Service Contracts +------------------------------- Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com. Customers using Third Party Support Organizations +------------------------------------------------ Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory. The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed. Customers without Service Contracts +---------------------------------- Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows. * +1 800 553 2447 (toll free from within North America) * +1 408 526 7209 (toll call from anywhere in the world) * e-mail: tac(a)cisco.com Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC. Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages. Exploitation and Public Announcements ===================================== The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was discovered by Cisco during routine internal testing. Status of this Notice: FINAL ============================ THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors. Distribution ============ This advisory is posted on Cisco's worldwide website at : http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients. * cust-security-announce(a)cisco.com * first-bulletins(a)lists.first.org * bugtraq(a)securityfocus.com * vulnwatch(a)vulnwatch.org * cisco(a)spot.colorado.edu * cisco-nsp(a)puck.nether.net * full-disclosure(a)lists.grok.org.uk * comp.dcom.sys.cisco(a)newsgate.cisco.com Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates. Revision History ================ +---------------------------------------+ | Revision | | Initial | | 1.0 | 2009-March-25 | public | | | | release. | +---------------------------------------+ Cisco Security Procedures ========================= Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.… This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAknKUdAACgkQ86n/Gc8U/uB5UACfTuBFTIs6/V/FKPdLnLYCvGXF CyIAn3XqDhmEqM24yznj0IHjMPpGQ7Y2 =mpQF -----END PGP SIGNATURE-----

13 years, 3 months

Cisco Security Advisory: Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability

by Cisco Systems Product Security Incident Response Team

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability Advisory ID: cisco-sa-20090325-sip http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml Revision 1.0 For Public Release 2009 March 25 1600 UTC (GMT) - --------------------------------------------------------------------- Summary ======= A vulnerability exists in the Session Initiation Protocol (SIP) implementation in Cisco IOS Software that can be exploited remotely to cause a reload of the Cisco IOS device. Cisco has released free software updates that address this vulnerability. There are no workarounds available to mitigate the vulnerability apart from disabling SIP, if the Cisco IOS device does not need to run SIP for VoIP services. However, mitigation techniques are available to help limit exposure to the vulnerability. This advisory is posted at the following link: http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml Note: The March 25, 2009, Cisco IOS Security Advisory bundled publication includes eight Security Advisories. All of the advisories address vulnerabilities in Cisco IOS Software. Each advisory lists the releases that correct the vulnerability or vulnerabilities in the advisory. The following table lists releases that correct all Cisco IOS Software vulnerabilities that have been published in Cisco Security Advisories on March 25, 2009, or earlier. http://www.cisco.com/warp/public/707/cisco-sa-20090325-bundle.shtml Individual publication links are listed below: * Cisco IOS cTCP Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ctcp.shtml * Cisco IOS Software Multiple Features IP Sockets Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-ip.shtml * Cisco IOS Software Mobile IP and Mobile IPv6 Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-mobileip.shtml * Cisco IOS Software Secure Copy Privilege Escalation Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-scp.shtml * Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml * Cisco IOS Software Multiple Features Crafted TCP Sequence Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-tcp.shtml * Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml * Cisco IOS Software WebVPN and SSLVPN Vulnerabilities http://www.cisco.com/warp/public/707/cisco-sa-20090325-webvpn.shtml Affected Products ================= This vulnerability only affects devices running Cisco IOS Software with SIP voice services enabled. Vulnerable Products +------------------ Cisco devices running affected Cisco IOS Software versions that process SIP messages are affected. The only requirement for this vulnerability is that the Cisco IOS device process SIP messages as part of configured VoIP functionality. Note that this does not apply to the processing of SIP messages as part of the NAT and firewall feature sets. Recent versions of Cisco IOS Software do not process SIP messages by default. Creating a dial peer by way of the command dial-peer voice will start the SIP processes and cause the Cisco IOS device to start processing SIP messages. In addition, several features within Cisco Unified Communications Manager Express, such as ePhones, once configured will also automatically start the SIP process, which will cause the device to start processing SIP messages. An example of an affected configuration is as follows: dial-peer voice <Voice dial-peer tag> voip ... ! Note: Older versions of Cisco IOS Software were affected by a bug that caused Cisco IOS Software to process SIP messages without being configured for SIP operation. Refer to http://www.cisco.com/warp/ public/707/cisco-sa-20070131-sip.shtml for additional information on Cisco bug ID CSCsb25337. In addition to inspecting the Cisco IOS device configuration for a dial-peer command that causes the device to process SIP messages, administrators can also use the command show processes | include SIP to determine whether Cisco IOS Software is running the processes that handle SIP messages. In the following example, the presence of the processes CCSIP_UDP_SOCKET and CCSIP_TCP_SOCKET indicates that the Cisco IOS device is processing SIP messages: Router#show processes | include SIP 147 Mwe 40F46DF4 12 2 600023468/24000 0 CCSIP_SPI_CONTRO 148 Mwe 40F21244 0 1 0 5524/6000 0 CCSIP_DNS 149 Mwe 40F48254 4 1 400023108/24000 0 CCSIP_UDP_SOCKET 150 Mwe 40F48034 4 1 400023388/24000 0 CCSIP_TCP_SOCKET Warning: Since there are several ways a device running Cisco IOS Software can start processing SIP messages, it is recommended that the show processes | include SIP command be used to determine whether the device is processing SIP messages instead of relying on the presence of specific configuration commands. To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the show version command to display the system banner. The system banner confirms that the device is running Cisco IOS Software by displaying text similar to "Cisco Internetwork Operating System Software" or "Cisco IOS Software." The image name displays in parentheses, followed by "Version" and the Cisco IOS Software release name. Other Cisco devices do not have the show version command or may provide different output. The following example identifies a Cisco product that is running Cisco IOS Software Release 12.3(26) with an installed image name of C2500-IS-L: Router#show version Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by cisco Systems, Inc. Compiled Mon 17-Mar-08 14:39 by dchih !--- output truncated The following example identifies a Cisco product that is running Cisco IOS Software Release 12.4(20)T with an installed image name of C1841-ADVENTERPRISEK9-M: Router#show version Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2008 by Cisco Systems, Inc. Compiled Thu 10-Jul-08 20:25 by prod_rel_team !--- output truncated Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS Reference Guide" at the following link: http://www.cisco.com/warp/public/620/1.html Products Confirmed Not Vulnerable +-------------------------------- The SIP Application Layer Gateway (ALG), which is used by the Cisco IOS NAT and firewall features of Cisco IOS Software, is not affected by this vulnerability. Cisco devices that are running Cisco IOS XE Software and Cisco IOS XR Software are not affected. No other Cisco products are currently known to be affected by this vulnerability. Details ======= SIP is a popular signaling protocol that is used to manage voice and video calls across IP networks such as the Internet. SIP is responsible for handling all aspects of call setup and termination. Voice and video are the most popular types of sessions that SIP handles, but the protocol has the flexibility to accommodate other applications that require call setup and termination. SIP call signaling can use UDP (port 5060), TCP (port 5060), or TLS (TCP port 5061) as the underlying transport protocol. A denial of service (DoS) vulnerability exists in the SIP implementation in Cisco IOS Software. This vulnerability is triggered by processing a specific and valid SIP message. This vulnerability is documented in Cisco Bug ID CSCsu11522 and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2009-0636. Note: The vulnerabilities described in the advisories Cisco IOS Software Multiple Features IP Sockets Vulnerability and Cisco IOS Software Multiple Features Crafted UDP Packet Vulnerability, both part of this bundle of Cisco IOS advisories, may also impact SIP operations. Vulnerability Scoring Details ============================= Cisco has provided scores for the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0. CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response. Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks. Cisco has provided an FAQ to answer additional questions regarding CVSS at http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at http://intellishield.cisco.com/security/alertmanager/cvss CSCsu11522 - A voice gateway may crash when processing valid SIP CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed Impact ====== Successful exploitation of the vulnerability described in this document may result in a reload of the device. The issue could be repeatedly exploited to cause an extended DoS condition. Software Versions and Fixes =========================== When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution. In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance. Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Recommended Release" column indicates the releases which have fixes for all the published vulnerabilities at the time of this Advisory. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "Recommended Releases" column of the table. Note: In addition to CSCsu11522 and because of its impact on SIP operation, this table of fixed software takes into consideration the vulnerability tracked by Cisco Bug CSCsk64158 , from "Cisco Security Advisory: Crafted UDP Packet Affects Multiple Cisco IOS Features" (http://www.cisco.com/warp/public/707/cisco-sa-20090325-udp.shtml) The table does not take into consideration the vulnerability disclosed by "Cisco Security Advisory: Cisco IOS IP Sockets Vulnerability Affecting Multiple Cisco IOS Features", which may impact SIP over TLS. +-------------------------------------------------------------------+ | Major | Availability of Repaired Releases | | Release | | |------------+------------------------------------------------------| | Affected | | Recommended | | 12.0-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0 | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0DA | Vulnerable; first fixed in 12.2DA | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0DB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0DC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.0S | 12.0(32)S12 | 12.0(32)S12 | |------------+-------------------------------------+----------------| | 12.0SC | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | 12.0SL | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0SP | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.0ST | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | 12.0SX | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | 12.0SY | 12.0(32)SY8 | 12.0(32)SY8 | |------------+-------------------------------------+----------------| | 12.0SZ | Vulnerable; first fixed in 12.0S | 12.0(32)S12 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0T | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.0W | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.0WC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.0WT | Not Vulnerable | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.0XF | Not Vulnerable | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XG | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | Releases prior to 12.0(4)XI2 are | 12.4(18e) | | | vulnerable, release 12.0(4)XI2 and | | | 12.0XI | later are not vulnerable; first | 12.4(23a); | | | fixed in 12.4 | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XJ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XK | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XL | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XM | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XN | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XQ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XS | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XT | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.0XV | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | Affected | | Recommended | | 12.1-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1 | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.1AA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1AX | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | | | 12.1(22)EA13 | | 12.1AY | Vulnerable; first fixed in 12.1EA | | | | | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | | | 12.1(22)EA13 | | 12.1AZ | Vulnerable; first fixed in 12.1EA | | | | | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.1CX | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1DA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1DB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1DC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1E | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.1EA | 12.1(22)EA13 | 12.1(22)EA13 | |------------+-------------------------------------+----------------| | 12.1EB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.2(33)SCB1 | | 12.1EC | Vulnerable; first fixed in 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | 12.1EO | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1EU | Vulnerable; first fixed in 12.2SG | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | 12.1EV | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1EW | Vulnerable; migrate to 12.2SGA | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1EX | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.1EY | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.1EZ | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1GA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1GB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1T | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XF | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XG | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XI | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XJ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XL | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XM | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XP | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XQ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XS | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XT | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XU | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XV | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XW | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XX | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XY | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1XZ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | Releases prior to 12.1(5)YE6 are | 12.4(18e) | | | vulnerable, release 12.1(5)YE6 and | | | 12.1YE | later are not vulnerable; first | 12.4(23a); | | | fixed in 12.4 | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YF | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.1YH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.1YI | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.1(22)EA13 | | 12.1YJ | Vulnerable; first fixed in 12.1EA | | | | | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | Affected | | Recommended | | 12.2-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2 | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2B | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to 12.2SCB or | 12.2(33)SCB1 | | 12.2BC | 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2BW | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2BX | Vulnerable; migrate to 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2BY | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2BZ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to 12.2SCB or | 12.2(33)SCB1 | | 12.2CX | 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to 12.2SCB or | 12.2(33)SCB1 | | 12.2CY | 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | 12.2CZ | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | 12.2(12)DA14; Available on | | | 12.2DA | 30-JUL-2009 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2DD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2DX | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2EW | Vulnerable; first fixed in 12.2SG | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | 12.2EWA | Vulnerable; first fixed in 12.2SG | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | 12.2EX | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2EY | 12.2(44)EY | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2EZ | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2FX | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2FY | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2FZ | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | 12.2IRA | Vulnerable; first fixed in 12.2SRC | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | 12.2IRB | Vulnerable; first fixed in 12.2SRC | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXA | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXB | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXC | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXD | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXE | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXF | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to any release | 12.2(18)IXH; | | 12.2IXG | in 12.2IXH | Available on | | | | 31-MAR-2009 | |------------+-------------------------------------+----------------| | 12.2JA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2JK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2MB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2MC | 12.2(15)MC2m | 12.2(15)MC2m | |------------+-------------------------------------+----------------| | 12.2S | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | | 12.2(28)SB13 | | | | | | | 12.2SB | 12.2(31)SB14 | 12.2(33)SB4 | | | | | | | 12.2(33)SB3 | | |------------+-------------------------------------+----------------| | 12.2SBC | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | 12.2SCA | Vulnerable; first fixed in 12.2SCB | 12.2(33)SCB1 | |------------+-------------------------------------+----------------| | 12.2SCB | 12.2(33)SCB1 | 12.2(33)SCB1 | |------------+-------------------------------------+----------------| | | 12.2(50)SE | | | | | | | 12.2SE | 12.2(46)SE2 | 12.2(44)SE6 | | | | | | | 12.2(44)SE5 | | |------------+-------------------------------------+----------------| | 12.2SEA | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEB | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEC | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SED | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEE | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEF | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | 12.2SEG | Vulnerable; first fixed in 12.2SE | 12.2(44)SE6 | |------------+-------------------------------------+----------------| | | | 12.2(52)SG; | | 12.2SG | 12.2(50)SG | Available on | | | | 15-MAY-2009 | |------------+-------------------------------------+----------------| | 12.2SGA | 12.2(31)SGA9 | 12.2(31)SGA9 | |------------+-------------------------------------+----------------| | 12.2SL | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2SM | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SO | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SQ | 12.2(44)SQ1 | | |------------+-------------------------------------+----------------| | | | 12.2(33)SRD1 | | | | | | 12.2SRA | Vulnerable; first fixed in 12.2SRC | 12.2(33)SRC4; | | | | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | | | 12.2(33)SRC4; | | | | Available on | | | | 18-MAY-2009 | | | | | | 12.2SRB | Vulnerable; first fixed in 12.2SRC | 12.2(33)SRD1 | | | | | | | | 12.2(33)SRB5a; | | | | Available on | | | | 3-April-2009 | |------------+-------------------------------------+----------------| | | 12.2(33)SRC4; Available on | 12.2(33)SRC4; | | 12.2SRC | 18-MAY-2009 | Available on | | | | 18-MAY-2009 | |------------+-------------------------------------+----------------| | 12.2SRD | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2STE | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2SU | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.2SV | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SVA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SVC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SVD | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SVE | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SW | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2SX | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXA | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXB | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXD | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXE | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2SXF | 12.2(18)SXF16 | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | | 12.2(33)SXH5; Available on | 12.2(33)SXH5; | | 12.2SXH | 20-APR-2009 | Available on | | | | 20-APR-2009 | |------------+-------------------------------------+----------------| | 12.2SXI | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2SY | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | 12.2SZ | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2T | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2TPC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XB | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XC | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XD | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | Vulnerable; migrate to 12.2SCB or | 12.2(33)SCB1 | | 12.2XF | 12.3BC | | | | | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XG | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XI | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XJ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XK | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XL | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XM | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.2(33)SB4 | | 12.2XN | Vulnerable; first fixed in 12.2SRC | | | | | 12.2(33)SRD1 | |------------+-------------------------------------+----------------| | 12.2XNA | Vulnerable; migrate to any release | 12.2(33)SRD1 | | | in 12.2SRD | | |------------+-------------------------------------+----------------| | 12.2XNB | 12.2(33)XNB1 | 12.2(33)XNB3 | |------------+-------------------------------------+----------------| | 12.2XNC | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2XO | 12.2(46)XO | 12.2(46)XO | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XQ | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XS | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XT | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XU | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XV | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2XW | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2YA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2YB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YD | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YE | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YF | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YG | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YH | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YJ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YK | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YL | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2YM | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.2YN | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YO | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2YP | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2YQ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YR | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YS | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.2YT | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YU | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YV | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YW | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YX | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YY | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2YZ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZA | Vulnerable; first fixed in 12.2SXF | 12.2(18)SXF16 | |------------+-------------------------------------+----------------| | 12.2ZB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZD | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2ZE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2ZF | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.2ZG | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.2ZH | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.2ZJ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZL | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZP | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.2(33)SXH5; | | 12.2ZU | Vulnerable; first fixed in 12.2SXH | Available on | | | | 20-APR-2009 | |------------+-------------------------------------+----------------| | 12.2ZX | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | 12.2ZY | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.2ZYA | 12.2(18)ZYA1 | 12.2(18)ZYA1 | |------------+-------------------------------------+----------------| | Affected | | Recommended | | 12.3-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.3 | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3B | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3BC | 12.3(23)BC6 | 12.3(23)BC6 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3BW | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3EU | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.3JA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3JEA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3JEB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3JEC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3JK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3JL | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3JX | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3T | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3TPC | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.3VA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.3XA | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.3XB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XC | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XD | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.3XE | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.3XF | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XG | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3XI | Vulnerable; first fixed in 12.2SB | 12.2(33)SB4 | |------------+-------------------------------------+----------------| | 12.3XJ | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XL | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XQ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(18e) | | | | | | 12.3XR | Vulnerable; first fixed in 12.4 | 12.4(23a); | | | | Available on | | | | 30-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XS | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XU | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3XW | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XX | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XY | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3XZ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YD | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3YF | Vulnerable; first fixed in 12.3YX | 12.3(14)YX14 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YG | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YH | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YI | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YJ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3YM | 12.3(14)YM13 | 12.3(14)YM13 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YQ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YS | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3YU | Vulnerable; first fixed in 12.4XB | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.3YX | 12.3(14)YX14 | 12.3(14)YX14 | |------------+-------------------------------------+----------------| | 12.3YZ | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.3ZA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | Affected | | Recommended | | 12.4-Based | First Fixed Release | Release | | Releases | | | |------------+-------------------------------------+----------------| | | 12.4(18e) | 12.4(18e) | | | | | | 12.4 | 12.4(23) | 12.4(23a); | | | | Available on | | | 12.4(23a); Available on 30-APR-2009 | 30-APR-2009 | |------------+-------------------------------------+----------------| | 12.4JA | 12.4(16b)JA1 | | |------------+-------------------------------------+----------------| | 12.4JDA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JK | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JL | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JMA | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JMB | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4JX | Vulnerable; first fixed in 12.4JA | | |------------+-------------------------------------+----------------| | 12.4MD | 12.4(11)MD7 | 12.4(11)MD7 | |------------+-------------------------------------+----------------| | 12.4MR | 12.4(19)MR1 | 12.4(19)MR2 | |------------+-------------------------------------+----------------| | 12.4SW | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | | 12.4(20)T2 | | | | | 12.4(22)T1 | | | 12.4(15)T8 | | | 12.4T | | 12.4(15)T9; | | | 12.4(22)T | Available on | | | | 29-APR-2009 | | | 12.4(15)T9; Available on | | | | 29-APR-2009 | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XA | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | 12.4(15)T8 | 12.4(22)T1 | | | | | | 12.4XB | 12.4(20)T2 | 12.4(15)T9; | | | | Available on | | | 12.4(15)T9; Available on | 29-APR-2009 | | | 29-APR-2009 | | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XC | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | 12.4(4)XD12; Available on | 12.4(4)XD12; | | 12.4XD | 27-MAR-2009 | Available on | | | | 27-MAR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XE | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XF | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | 12.4(15)T8 | | | 12.4XG | | 12.4(15)T9; | | | 12.4(20)T2 | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XJ | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XK | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.4XL | 12.4(15)XL4 | 12.4(15)XL4 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XM | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.4XN | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4XP | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4XQ | 12.4(15)XQ2 | 12.4(15)XQ2 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XR | 12.4(15)XR4 | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XT | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.4XV | Vulnerable; contact TAC | | |------------+-------------------------------------+----------------| | 12.4XW | 12.4(11)XW10 | 12.4(11)XW10 | |------------+-------------------------------------+----------------| | | | 12.4(22)T1 | | | | | | 12.4XY | Vulnerable; first fixed in 12.4T | 12.4(15)T9; | | | | Available on | | | | 29-APR-2009 | |------------+-------------------------------------+----------------| | 12.4XZ | 12.4(15)XZ2 | 12.4(15)XZ2 | |------------+-------------------------------------+----------------| | 12.4YA | 12.4(20)YA2 | 12.4(20)YA3 | |------------+-------------------------------------+----------------| | 12.4YB | Not Vulnerable | | |------------+-------------------------------------+----------------| | 12.4YD | Not Vulnerable | | +-------------------------------------------------------------------+ Workarounds =========== If the affected Cisco IOS device requires SIP for VoIP services, SIP cannot be disabled, and therefore, no workarounds are available. Users are advised to apply mitigation techniques to help limit exposure to the vulnerability. Mitigation consists of allowing only legitimate devices to connect to the routers. To increase effectiveness, the mitigation must be coupled with anti-spoofing measures on the network edge. This action is required because SIP can use UDP as the transport protocol. Additional mitigations that can be deployed on Cisco devices within the network are available in the companion document "Cisco Applied Mitigation Bulletin: Identifying and Mitigating Exploitation of the Cisco IOS SIP and Crafted UDP Vulnerabilities", which is available at the following location: http://www.cisco.com/warp/public/707/cisco-amb-20090325-sip-and-udp.shtml Disable SIP Listening Ports +-------------------------- For devices that do not require SIP to be enabled, the simplest and most effective workaround is to disable SIP processing on the device. Some versions of Cisco IOS Software allow administrators to accomplish this with the following commands: sip-ua no transport udp no transport tcp Warning: When applying this workaround to devices that are processing Media Gateway Control Protocol (MGCP) or H.323 calls, the device will not stop SIP processing while active calls are being processed. Under these circumstances, this workaround should be implemented during a maintenance window when active calls can be briefly stopped. After applying this workaround, administrators are advised to use the show commands, as discussed in the Affected Products section of this advisory, to confirm that the Cisco IOS device is no longer processing SIP messages. Control Plane Policing +--------------------- For devices that need to offer SIP services it is possible to use Control Plane Policing (CoPP) to block SIP traffic to the device from untrusted sources. Cisco IOS Releases 12.0S, 12.2SX, 12.2S, 12.3T, 12.4, and 12.4T support the CoPP feature. CoPP may be configured on a device to protect the management and control planes to minimize the risk and effectiveness of direct infrastructure attacks by explicitly permitting only authorized traffic sent to infrastructure devices in accordance with existing security policies and configurations. The following example can be adapted to the network: !-- The 192.168.1.0/24 network and the 172.16.1.1 host are trusted. !-- Everything else is not trusted. The following access list is used !-- to determine what traffic needs to be dropped by a control plane !-- policy (the CoPP feature.) If the access list matches (permit) !-- then traffic will be dropped and if the access list does not !-- match (deny) then traffic will be processed by the router. access-list 100 deny udp 192.168.1.0 0.0.0.255 any eq 5060 access-list 100 deny tcp 192.168.1.0 0.0.0.255 any eq 5060 access-list 100 deny tcp 192.168.1.0 0.0.0.255 any eq 5061 access-list 100 deny udp host 172.16.1.1 any eq 5060 access-list 100 deny tcp host 172.16.1.1 any eq 5060 access-list 100 deny tcp host 172.16.1.1 any eq 5061 access-list 100 permit udp any any eq 5060 access-list 100 permit tcp any any eq 5060 access-list 100 permit tcp any any eq 5061 !-- Permit (Police or Drop)/Deny (Allow) all other Layer3 and Layer4 !-- traffic in accordance with existing security policies and !-- configurations for traffic that is authorized to be sent !-- to infrastructure devices. !-- Create a Class-Map for traffic to be policed by !-- the CoPP feature. class-map match-all drop-sip-class match access-group 100 !-- Create a Policy-Map that will be applied to the !-- Control-Plane of the device. policy-map drop-sip-traffic class drop-sip-class drop !-- Apply the Policy-Map to the Control-Plane of the !-- device. control-plane service-policy input drop-sip-traffic Warning: Because SIP can use UDP as a transport protocol, it is possible to easily spoof the IP address of the sender, which may defeat access control lists that permit communication to these ports from trusted IP addresses. In the above CoPP example, the access control entries (ACEs) that match the potential exploit packets with the "permit" action result in these packets being discarded by the policy-map "drop" function, while packets that match the "deny" action (not shown) are not affected by the policy-map drop function. Additional information on the configuration and use of the CoPP feature can be found at http://www.cisco.com/web/about/security/intelligence/coppwp_gs.html and http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gtrtlimt.html Obtaining Fixed Software ======================== Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment. Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml Do not contact psirt(a)cisco.com or security-alert(a)cisco.com for software upgrades. Customers with Service Contracts +------------------------------- Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com Customers using Third Party Support Organizations +------------------------------------------------ Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory. The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed. Customers without Service Contracts +---------------------------------- Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows. * +1 800 553 2447 (toll free from within North America) * +1 408 526 7209 (toll call from anywhere in the world) * e-mail: tac(a)cisco.com Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC. Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages. Exploitation and Public Announcements ===================================== The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was discovered during handling of customer service requests. Status of this Notice: FINAL ============================ THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors. Distribution ============ This advisory is posted on Cisco's worldwide website at : http://www.cisco.com/warp/public/707/cisco-sa-20090325-sip.shtml In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients. * cust-security-announce(a)cisco.com * first-bulletins(a)lists.first.org * bugtraq(a)securityfocus.com * vulnwatch(a)vulnwatch.org * cisco(a)spot.colorado.edu * cisco-nsp(a)puck.nether.net * full-disclosure(a)lists.grok.org.uk * comp.dcom.sys.cisco(a)newsgate.cisco.com Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates. Revision History ================ +---------------------------------------+ | Revision | | Initial | | 1.0 | 2009-March-25 | public | | | | release | +---------------------------------------+ Cisco Security Procedures ========================= Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.… This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAknKUboACgkQ86n/Gc8U/uCi+gCfZaAw0PuDJWKg2K42vzfdJe+h XHwAnRRdQQTeuhmW0liolMtU1ZzKg+Ke =VvxT -----END PGP SIGNATURE-----

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