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cve-2008-1156
Vulnerability from cvelistv5
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"url": "http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml" }, { "name": "28464", "refsource": "BID", "url": "http://www.securityfocus.com/bid/28464" }, { "name": "29507", "refsource": "SECUNIA", "url": "http://secunia.com/advisories/29507" }, { "name": "1019715", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id?1019715" }, { "name": "oval:org.mitre.oval:def:5648", "refsource": "OVAL", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648" } ] } } } }, "cveMetadata": { "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2008-1156", "datePublished": "2008-03-27T10:00:00", "dateReserved": "2008-03-05T00:00:00", "dateUpdated": "2024-08-07T08:08:57.647Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "fkie_nvd": { "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": 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la implementaci\\u00f3n de la Red Privada Virtual Multicast (MVPN) en Cisco IOS 12.0, 12.2, 12.3, y 12.4 permite a atacantes remotos crear \\\"estados multicast extra en los routers core\\\" a trav\\u00e9s de mensajes Multicast Distribution Tree (MDT) Data Join manipulados.\"}]", "id": "CVE-2008-1156", "lastModified": "2024-11-21T00:43:48.640", "metrics": "{\"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:H/Au:N/C:P/I:P/A:P\", \"baseScore\": 5.1, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"HIGH\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 4.9, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": true, \"userInteractionRequired\": true}]}", "published": "2008-03-27T10:44:00.000", "references": "[{\"url\": \"http://secunia.com/advisories/29507\", \"source\": \"ykramarz@cisco.com\"}, {\"url\": \"http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Patch\"]}, {\"url\": \"http://www.securityfocus.com/bid/28464\", \"source\": \"ykramarz@cisco.com\"}, {\"url\": \"http://www.securitytracker.com/id?1019715\", \"source\": \"ykramarz@cisco.com\"}, {\"url\": \"http://www.us-cert.gov/cas/techalerts/TA08-087B.html\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"US Government Resource\"]}, {\"url\": \"http://www.vupen.com/english/advisories/2008/1006/references\", \"source\": \"ykramarz@cisco.com\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/41468\", \"source\": \"ykramarz@cisco.com\"}, {\"url\": \"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648\", \"source\": \"ykramarz@cisco.com\"}, {\"url\": 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\"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]", "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-16\"}, {\"lang\": \"en\", \"value\": \"CWE-200\"}]}]" }, "nvd": "{\"cve\":{\"id\":\"CVE-2008-1156\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2008-03-27T10:44:00.000\",\"lastModified\":\"2024-11-21T00:43:48.640\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create \\\"extra multicast states on the core routers\\\" via a crafted Multicast Distribution Tree (MDT) Data Join message.\"},{\"lang\":\"es\",\"value\":\"Vulnerabilidad no 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manipulados.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:H/Au:N/C:P/I:P/A:P\",\"baseScore\":5.1,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"HIGH\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":4.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":true,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-16\"},{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:cisco_ios:12.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8A8D0F64-5DE1-4A6F-91F0-8A8509BF077F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:cisco_ios:12.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E6A60117-E4D1-4741-98A2-E643A26616A7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8F86F790-6247-42F2-9487-3D60A2842F52\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E4BC49F2-3DCB-45F0-9030-13F6415EE178\"}]}]}],\"references\":[{\"url\":\"http://secunia.com/advisories/29507\",\"source\":\"ykramarz@cisco.com\"},{\"url\":\"http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"Patch\"]},{\"url\":\"http://www.securityfocus.com/bid/28464\",\"source\":\"ykramarz@cisco.com\"},{\"url\":\"http://www.securitytracker.com/id?1019715\",\"source\":\"ykramarz@cisco.com\"},{\"url\":\"http://www.us-cert.gov/cas/techalerts/TA08-087B.html\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"US Government Resource\"]},{\"url\":\"http://www.vupen.com/english/advisories/2008/1006/references\",\"source\":\"ykramarz@cisco.com\"},{\"url\":\"https://exchange.xforce.ibmcloud.com/vulnerabilities/41468\",\"source\":\"ykramarz@cisco.com\"},{\"url\":\"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648\",\"source\":\"ykramarz@cisco.com\"},{\"url\":\"http://secunia.com/advisories/29507\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"http://www.securityfocus.com/bid/28464\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securitytracker.com/id?1019715\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.us-cert.gov/cas/techalerts/TA08-087B.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"US Government Resource\"]},{\"url\":\"http://www.vupen.com/english/advisories/2008/1006/references\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://exchange.xforce.ibmcloud.com/vulnerabilities/41468\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}" } }
gsd-2008-1156
Vulnerability from gsd
{ "GSD": { "alias": "CVE-2008-1156", "description": "Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create \"extra multicast states on the core routers\" via a crafted Multicast Distribution Tree (MDT) Data Join message.", "id": "GSD-2008-1156" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2008-1156" ], "details": "Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create \"extra multicast states on the core routers\" via a crafted Multicast Distribution Tree (MDT) Data Join message.", "id": "GSD-2008-1156", "modified": "2023-12-13T01:23:02.945360Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "ID": "CVE-2008-1156", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create \"extra multicast states on the core routers\" via a crafted Multicast Distribution Tree (MDT) Data Join message." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "ADV-2008-1006", "refsource": "VUPEN", "url": "http://www.vupen.com/english/advisories/2008/1006/references" }, { "name": "cisco-ios-mvpm-information-disclosure(41468)", "refsource": "XF", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41468" }, { "name": "TA08-087B", "refsource": "CERT", "url": "http://www.us-cert.gov/cas/techalerts/TA08-087B.html" }, { "name": "20080326 Cisco IOS Multicast Virtual Private Network (MVPN) Data Leak", "refsource": "CISCO", "url": "http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml" }, { "name": "28464", "refsource": "BID", "url": "http://www.securityfocus.com/bid/28464" }, { "name": "29507", "refsource": "SECUNIA", "url": "http://secunia.com/advisories/29507" }, { "name": "1019715", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id?1019715" }, { "name": "oval:org.mitre.oval:def:5648", "refsource": "OVAL", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:cisco_ios:12.4:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:cisco_ios:12.3:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "ID": "CVE-2008-1156" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create \"extra multicast states on the core routers\" via a crafted Multicast Distribution Tree (MDT) Data Join message." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-16" }, { "lang": "en", "value": "CWE-200" } ] } ] }, "references": { "reference_data": [ { "name": "20080326 Cisco IOS Multicast Virtual Private Network (MVPN) Data Leak", "refsource": "CISCO", "tags": [ "Patch" ], "url": "http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml" }, { "name": "TA08-087B", "refsource": "CERT", "tags": [ "US Government Resource" ], "url": "http://www.us-cert.gov/cas/techalerts/TA08-087B.html" }, { "name": "28464", "refsource": "BID", "tags": [], "url": "http://www.securityfocus.com/bid/28464" }, { "name": "1019715", "refsource": "SECTRACK", "tags": [], "url": "http://www.securitytracker.com/id?1019715" }, { "name": "29507", "refsource": "SECUNIA", "tags": [], "url": "http://secunia.com/advisories/29507" }, { "name": "ADV-2008-1006", "refsource": "VUPEN", "tags": [], "url": "http://www.vupen.com/english/advisories/2008/1006/references" }, { "name": "cisco-ios-mvpm-information-disclosure(41468)", "refsource": "XF", "tags": [], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41468" }, { "name": "oval:org.mitre.oval:def:5648", "refsource": "OVAL", "tags": [], "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648" } ] } }, "impact": { "baseMetricV2": { "cvssV2": { "accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0" }, "exploitabilityScore": 4.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": true, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": true } }, "lastModifiedDate": "2017-09-29T01:30Z", "publishedDate": "2008-03-27T10:44Z" } } }
ghsa-4c4p-4x55-3pgj
Vulnerability from github
Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create "extra multicast states on the core routers" via a crafted Multicast Distribution Tree (MDT) Data Join message.
{ "affected": [], "aliases": [ "CVE-2008-1156" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2008-03-27T10:44:00Z", "severity": "MODERATE" }, "details": "Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create \"extra multicast states on the core routers\" via a crafted Multicast Distribution Tree (MDT) Data Join message.", "id": "GHSA-4c4p-4x55-3pgj", "modified": "2022-05-01T23:37:16Z", "published": "2022-05-01T23:37:16Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2008-1156" }, { "type": "WEB", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41468" }, { "type": "WEB", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648" }, { "type": "WEB", "url": "http://secunia.com/advisories/29507" }, { "type": "WEB", "url": "http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml" }, { "type": "WEB", "url": "http://www.securityfocus.com/bid/28464" }, { "type": "WEB", "url": "http://www.securitytracker.com/id?1019715" }, { "type": "WEB", "url": "http://www.us-cert.gov/cas/techalerts/TA08-087B.html" }, { "type": "WEB", "url": "http://www.vupen.com/english/advisories/2008/1006/references" } ], "schema_version": "1.4.0", "severity": [] }
var-200803-0330
Vulnerability from variot
Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create "extra multicast states on the core routers" via a crafted Multicast Distribution Tree (MDT) Data Join message. A vulnerability in the way Cisco IOS handles IPv6 packets could result in a remotely exploitable denial of service. Information gained could aid in further attacks. ----------------------------------------------------------------------
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TITLE: Cisco IOS Multiple Vulnerabilities
SECUNIA ADVISORY ID: SA29507
VERIFY ADVISORY: http://secunia.com/advisories/29507/
CRITICAL: Moderately critical
IMPACT: Manipulation of data, Exposure of sensitive information, DoS
WHERE:
From remote
OPERATING SYSTEM: Cisco IOS 12.x http://secunia.com/product/182/ Cisco IOS R12.x http://secunia.com/product/50/
DESCRIPTION: Some vulnerabilities have been reported in Cisco IOS, which can be exploited by malicious people to disclose sensitive information, manipulate certain data, or to cause a DoS (Denial of Service).
1) A memory leak exists in the handling of completed PPTP sessions, which can be exploited to exhaust memory on an affected system.
2) An error exists in the handling of PPTP sessions when virtual access interfaces are not removed from the interface descriptor block (IDB) and are not reused. This can result in an exhaustion of the interface descriptor block (IDB) limit.
Vulnerabilities #1 and #2 are reported in Cisco IOS versions prior to 12.3 with VPDN enabled.
3) Some errors exist in the Data-Link-Switching (DLSw) feature when processing UDP and IP protocol 91 packets. This can be exploited to cause a reload of the system or a memory leak.
4) An error exists in the processing of IPv6 packets, which can be exploited to prevent the interface from receiving additional traffic or to cause the device to crash (if RSVP service is configured on the interface) by sending a specially crafted IPv6 packet to the device.
Successful exploitation of this vulnerability requires that IPv6 and certain IPv4 UDP services are enabled.
SOLUTION: Update to the fixed version (please see the vendor's advisories for details).
PROVIDED AND/OR DISCOVERED BY: 1, 2) The vendor credits Martin Kluge of Elxsi Security.
ORIGINAL ADVISORY: Cisco: http://www.cisco.com/warp/public/707/cisco-sa-20080326-pptp.shtml http://www.cisco.com/warp/public/707/cisco-sa-20080326-dlsw.shtml http://www.cisco.com/warp/public/707/cisco-sa-20080326-IPv4IPv6.shtml http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml
OTHER REFERENCES: US-CERT VU#936177: http://www.kb.cert.org/vuls/id/936177
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
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Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
National Cyber Alert System
Technical Cyber Security Alert TA08-087B
Cisco Updates for Multiple Vulnerabilities
Original release date: March 27, 2007 Last revised: -- Source: US-CERT
Systems Affected
* Cisco IOS
Overview
Cisco has released Cisco Security Advisory cisco-sa-20080326-bundle to correct multiple vulnerabilities affecting Cisco IOS. Attackers could exploit these vulnerabilities to access sensitive information or cause a denial of service.
I.
II. Impact
The impacts of these vulnerabilities vary. Potential consequences include disclosure of sensitive information and denial of service.
III.
IV. Please send email to cert@cert.org with "TA08-087B Feedback VU#936177" in the subject.
For instructions on subscribing to or unsubscribing from this mailing list, visit http://www.us-cert.gov/cas/signup.html.
Produced 2008 by US-CERT, a government organization.
Cisco has released free software updates that address this vulnerability. Workarounds that mitigate this vulnerability are available.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml
Note: The March 26, 2008 publication includes five Security Advisories. The Advisories all affect Cisco IOS. Each Advisory lists the releases that correct the vulnerability described in the Advisory, and the Advisories also detail the releases that correct the vulnerabilities in all five Advisories. Please reference the following software table to find a release that fixes all published Security Advisories as of March 26th, 2008.
- March 26th bundled IOS Advisory Table http://www.cisco.com/warp/public/707/cisco-sa-20080326-bundle.shtml
Individual publication links are listed below:
-
Cisco IOS Virtual Private Dial-up Network Denial of Service Vulnerability http://www.cisco.com/warp/public/707/cisco-sa-20080326-pptp.shtml
-
Multiple DLSw Denial of Service Vulnerabilities in Cisco IOS http://www.cisco.com/warp/public/707/cisco-sa-20080326-dlsw.shtml
-
Cisco IOS User Datagram Protocol Delivery Issue For IPv4/IPv6 Dual-stack Routers http://www.cisco.com/warp/public/707/cisco-sa-20080326-IPv4IPv6.shtml
-
Vulnerability in Cisco IOS with OSPF, MPLS VPN, and Supervisor 32, Supervisor 720, or Route Switch Processor 720 http://www.cisco.com/warp/public/707/cisco-sa-20080326-queue.shtml
-
Cisco IOS Multicast Virtual Private Network (MVPN) Data Leak http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml
Affected Products
Vulnerable Products +------------------
Devices that run Cisco IOS and are configured for MVPN are affected.
An IOS device that is configured for MVPN has a line that is similar to this in the running configuration example:
mdt default <group-address>
In order to determine the software that runs on a Cisco IOS product, log in to the device and issue the show version command to display the system banner. Cisco IOS\xae software identifies itself as "Internetwork Operating System Software" or simply "IOS." On the next line of output, the image name displays between parentheses, followed by "Version" and the Cisco IOS release name. Other Cisco devices do not have the "show version" command or give different output.
The following example shows output from a device that runs an IOS image:
Router>show version
Cisco IOS Software, 7200 Software (C7200-IK9S-M), Version 12.3(14)T1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Thu 31-Mar-05 08:04 by yiyan
Additional information about Cisco IOS release naming is available at the following link: http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_white_paper09186a008018305e.shtml.
Products Confirmed Not Vulnerable +--------------------------------
No other Cisco products, including IOS XR software, are currently known to be affected by this vulnerability.
Details
MVPN architecture introduces an additional set of protocols and procedures that help enable a service provider to support multicast traffic in an MPLS VPN. MVPN allows the transparent transport of IP multicast traffic across the MPLS VPN backbone of a provider and allows a service provider to offer multicast services to MPLS VPN customers. MDT Data Join messages can be sent in unicast or multicast. The vulnerability can also allow leaking multicast traffic from different MPLS VPNs. In order to successfully exploit this vulnerability, an attacker needs to know or guess the Border Gateway Protocol (BGP) peering IP address of a remote PE router and the address of the multicast group that is used in other MPLS VPNs.
This vulnerability is documented in the Cisco Bug ID CSCsi01470 and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2008-1156.
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
CSCsi01470 - Crafted MDT Data Join TLV in VRF causes multicast state
CVSS Base Score - 7.5
Access Vector: Network Access Complexity: Low Authentication: None
Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
CVSS Temporal Score - 6.2
Exploitability: Functional Remediation Level: Official-Fix Report Confidence: Confirmed
Impact
Successful exploitation of the vulnerability can result in the creation of extra multicast states on the core routers or the leaking of multicast traffic from one MPLS VPN to another.
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 | | Release | Releases | |------------+---------------------------| | Affected | First Fixed | Recommended | | 12.0-Based | Release | Release | | Releases | | | |------------+-------------+-------------| | 12.0 | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0DA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0DB | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0DC | Not | | | | Vulnerable | | |------------+-------------+-------------| | | 12.0(32)S9 | | | 12.0S | | 12.0(32)S10 | | | 12.0(33)S | | |------------+-------------+-------------| | 12.0SC | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0SL | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0SP | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0ST | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.0SX | first fixed | 12.0(32)S10 | | | in 12.0S | | |------------+-------------+-------------| | 12.0SY | 12.0(32)SY4 | 12.0(32)SY5 | |------------+-------------+-------------| | 12.0SZ | 12.0(30)SZ4 | 12.0(32)S10 | |------------+-------------+-------------| | 12.0T | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0W | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0WC | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0WT | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XB | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XC | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XD | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XE | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XF | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XG | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XH | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XI | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XJ | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XK | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XL | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XM | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XN | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XQ | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XR | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XS | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XV | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.0XW | Not | | | | Vulnerable | | |------------+-------------+-------------| | Affected | First Fixed | Recommended | | 12.1-Based | Release | Release | | Releases | | | |----------------------------------------| | There are no affected 12.1 based | | releases | |----------------------------------------| | Affected | First Fixed | Recommended | | 12.2-Based | Release | Release | | Releases | | | |------------+-------------+-------------| | 12.2 | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2B | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2BC | first fixed | 12.3(23)BC1 | | | in 12.3BC | | |------------+-------------+-------------| | 12.2BW | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2BY | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2BZ | first fixed | | | | in 12.3XI | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2CX | first fixed | 12.3(23)BC1 | | | in 12.3BC | | |------------+-------------+-------------| | 12.2CY | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2CZ | Vulnerable; | | | | contact TAC | | |------------+-------------+-------------| | 12.2DA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2DD | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2DX | Not | | | | Vulnerable | | |------------+-------------+-------------| | | | 12.2(25) | | | | EWA13 | | | Vulnerable; | | | 12.2EU | first fixed | 12.2(31) | | | in 12.2SG | SGA5 | | | | | | | | 12.2(44)SG | |------------+-------------+-------------| | | | 12.2(25) | | | | EWA13 | | | Vulnerable; | | | 12.2EW | first fixed | 12.2(31) | | | in 12.2SG | SGA5 | | | | | | | | 12.2(44)SG | |------------+-------------+-------------| | | 12.2(25) | | | | EWA10 | 12.2(25) | | 12.2EWA | | EWA13 | | | 12.2(25) | | | | EWA11 | | |------------+-------------+-------------| | 12.2EX | 12.2(37)EX | 12.2(40)EX1 | |------------+-------------+-------------| | 12.2EY | 12.2(37)EY | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2EZ | first fixed | | | | in 12.2SEE | | |------------+-------------+-------------| | 12.2FX | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2FY | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2FZ | first fixed | 12.2(44)SE1 | | | in 12.2SE | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2IXA | first fixed | | | | in 12.2IXD | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2IXB | first fixed | | | | in 12.2IXD | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2IXC | first fixed | | | | in 12.2IXD | | |------------+-------------+-------------| | 12.2IXD | 12.2(18) | | | | IXD1 | | |------------+-------------+-------------| | 12.2IXE | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2JA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2JK | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2MB | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2MC | 12.2(15) | 12.4(18a) | | | MC2h | | |------------+-------------+-------------| | | 12.2(14)S18 | | | | | | | | 12.2(18)S13 | | | 12.2S | | 12.2(25)S15 | | | 12.2(20)S14 | | | | | | | | 12.2(25)S13 | | |------------+-------------+-------------| | | 12.2(28)SB7 | | | | | | | | 12.2(31)SB5 | | | 12.2SB | | 12.2(28) | | | 12.2(33)SB; | SB12 | | | Available | | | | on | | | | 31-MAR-08 | | |------------+-------------+-------------| | | Vulnerable; | | | | first fixed | | | 12.2SBC | in 12.2SB; | 12.2(28) | | | Available | SB12 | | | on | | | | 31-MAR-08 | | |------------+-------------+-------------| | 12.2SCA | Not | | | | Vulnerable | | |------------+-------------+-------------| | | 12.2(35)SE4 | | | 12.2SE | | 12.2(44)SE1 | | | 12.2(37)SE | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2SEA | first fixed | | | | in 12.2SEE | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2SEB | first fixed | | | | in 12.2SEE | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2SEC | first fixed | | | | in 12.2SEE | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2SED | first fixed | | | | in 12.2SEE | | |------------+-------------+-------------| | 12.2SEE | 12.2(25) | | | | SEE4 | | |------------+-------------+-------------| | 12.2SEF | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2SEG | 12.2(25) | 12.2(25) | | | SEG3 | SEG4 | |------------+-------------+-------------| | | 12.2(25)SG2 | | | | | | | | 12.2(31)SG2 | | | 12.2SG | | 12.2(44)SG | | | 12.2(37)SG1 | | | | | | | | 12.2(40)SG | | |------------+-------------+-------------| | | 12.2(31) | | | | SGA2 | | | | | | | | 12.2(31) | | | | SGA3 | 12.2(31) | | 12.2SGA | | SGA5 | | | 12.2(31) | | | | SGA6; | | | | Available | | | | on | | | | 07-APR-08 | | |------------+-------------+-------------| | 12.2SL | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2SM | 12.2(29)SM2 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2SO | migrate to | 12.2(29)SVD | | | any release | | | | in 12.2SVA | | |------------+-------------+-------------| | 12.2SRA | 12.2(33) | 12.2(33) | | | SRA4 | SRA7 | |------------+-------------+-------------| | | | 12.2(33) | | | 12.2(33) | SRB3; | | 12.2SRB | SRB1 | Available | | | | on | | | | 31-MAR-08 | |------------+-------------+-------------| | 12.2SRC | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2SU | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.2SV | 12.2(29b)SV | 12.2(29b)SV | |------------+-------------+-------------| | 12.2SVA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2SVC | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2SVD | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2SW | 12.2(25) | | | | SW11 | | |------------+-------------+-------------| | | Vulnerable; | 12.2(18) | | 12.2SX | first fixed | SXF13 | | | in 12.2SXF | | |------------+-------------+-------------| | | Vulnerable; | 12.2(18) | | 12.2SXA | first fixed | SXF13 | | | in 12.2SXF | | |------------+-------------+-------------| | | Vulnerable; | 12.2(18) | | 12.2SXB | first fixed | SXF13 | | | in 12.2SXF | | |------------+-------------+-------------| | | Vulnerable; | 12.2(18) | | 12.2SXD | first fixed | SXF13 | | | in 12.2SXF | | |------------+-------------+-------------| | | Vulnerable; | 12.2(18) | | 12.2SXE | first fixed | SXF13 | | | in 12.2SXF | | |------------+-------------+-------------| | | 12.2(18) | | | | SXF10 | | | | | | | 12.2SXF | 12.2(18) | 12.2(18) | | | SXF10a | SXF13 | | | | | | | 12.2(18) | | | | SXF12a | | |------------+-------------+-------------| | 12.2SXH | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | 12.2(18) | | 12.2SY | first fixed | SXF13 | | | in 12.2SXF | | |------------+-------------+-------------| | | | 12.2(25)S15 | | | Vulnerable; | | | 12.2SZ | first fixed | 12.2(28) | | | in 12.2S | SB12 | | | | | | | | 12.2(33)SRC | |------------+-------------+-------------| | | Vulnerable; | | | 12.2T | first fixed | 12.3(26) | | | in 12.3 | | |------------+-------------+-------------| | 12.2TPC | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | | first fixed | | | 12.2UZ | in 12.2SB; | 12.2(28) | | | Available | SB12 | | | on | | | | 31-MAR-08 | | |------------+-------------+-------------| | 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 | | |------------+-------------+-------------| | 12.2XN | 12.2(33)XN1 | 12.3(26) | |------------+-------------+-------------| | 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 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YH | first fixed | 12.3(26) | | | in 12.3 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YJ | first fixed | 12.3(26) | | | in 12.3 | | |------------+-------------+-------------| | 12.2YK | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YL | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YM | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YN | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.2YO | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.2YP | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YQ | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YR | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.2YS | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YT | first fixed | 12.3(26) | | | in 12.3 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YU | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YV | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.2YW | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2YX | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.2YY | Not | | | | Vulnerable | | |------------+-------------+-------------| | | | 12.2(25)S15 | | | Vulnerable; | | | 12.2YZ | first fixed | 12.2(28) | | | in 12.2S | SB12 | | | | | | | | 12.2(33)SRC | |------------+-------------+-------------| | | Vulnerable; | 12.2(18) | | 12.2ZA | first fixed | SXF13 | | | in 12.2SXF | | |------------+-------------+-------------| | 12.2ZB | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2ZC | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.2ZD | Vulnerable; | | | | contact TAC | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2ZE | first fixed | 12.3(26) | | | in 12.3 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2ZF | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | 12.4(15)T4 | | 12.2ZG | first fixed | | | | in 12.3YG | 12.4(18a) | |------------+-------------+-------------| | 12.2ZH | 12.2(13)ZH9 | 12.2(13) | | | | ZH11 | |------------+-------------+-------------| | | Vulnerable; | | | 12.2ZJ | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | 12.4(15)T4 | | 12.2ZL | first fixed | | | | in 12.4 | 12.4(18a) | |------------+-------------+-------------| | | Vulnerable; | | | 12.2ZP | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.2ZU | migrate to | 12.2(33) | | | any release | SXH2 | | | in 12.2SXH | | |------------+-------------+-------------| | 12.2ZY | 12.2(18)ZY1 | 12.2(18)ZY2 | |------------+-------------+-------------| | Affected | First Fixed | Recommended | | 12.3-Based | Release | Release | | Releases | | | |------------+-------------+-------------| | | 12.3(17c) | | | | | | | | 12.3(18a) | | | | | | | | 12.3(19a) | | | | | | | 12.3 | 12.3(20a) | 12.3(26) | | | | | | | 12.3(21b) | | | | | | | | 12.3(22a) | | | | | | | | 12.3(23) | | |------------+-------------+-------------| | | Vulnerable; | | | 12.3B | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | 12.3(17b) | | | | BC8 | | | | | | | 12.3BC | 12.3(21a) | 12.3(23)BC1 | | | BC2 | | | | | | | | 12.3(23)BC | | |------------+-------------+-------------| | | Vulnerable; | | | 12.3BW | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.3EU | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.3JA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.3JEA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.3JEB | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.3JEC | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Releases | | | | prior to | | | | 12.3(8)JK1 | | | | are | | | 12.3JK | vulnerable, | 12.3(8)JK1 | | | release | | | | 12.3(8)JK1 | | | | and later | | | | are not | | | | vulnerable; | | |------------+-------------+-------------| | 12.3JL | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.3JX | Not | | | | Vulnerable | | |------------+-------------+-------------| | | Vulnerable; | | | 12.3T | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.3TPC | 12.3(4) | | | | TPC11b | | |------------+-------------+-------------| | 12.3VA | Vulnerable; | | | | contact TAC | | |------------+-------------+-------------| | | | 12.3(2)XA7; | | 12.3XA | 12.3(2)XA6 | Available | | | | on | | | | 31-MAR-08 | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XB | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | | 12.4(15)T4 | | 12.3XC | 12.3(2)XC5 | | | | | 12.4(18a) | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XD | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | | 12.4(15)T4 | | 12.3XE | 12.3(2)XE5 | | | | | 12.4(18a) | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XF | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | 12.4(15)T4 | | 12.3XG | first fixed | | | | in 12.3YG | 12.4(18a) | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XH | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | 12.3XI | 12.3(7) | | | | XI10a | | |------------+-------------+-------------| | | Vulnerable; | 12.3(14) | | 12.3XJ | first fixed | YX11 | | | in 12.3YX | | | | | 12.4(15)T4 | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XK | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XQ | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | | 12.3(7)XR8; | | 12.3XR | 12.3(7)XR7 | Available | | | | on | | | | 31-MAR-08 | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XS | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XU | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | | Vulnerable; | 12.3(14) | | 12.3XW | first fixed | YX11 | | | in 12.3YX | | | | | 12.4(15)T4 | |------------+-------------+-------------| | | Vulnerable; | | | 12.3XY | first fixed | 12.4(18a) | | | in 12.4 | | |------------+-------------+-------------| | | Vulnerable; | 12.4(15)T4 | | 12.3YA | first fixed | | | | in 12.4 | 12.4(18a) | |------------+-------------+-------------| | | Vulnerable; | | | 12.3YD | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | | Vulnerable; | 12.3(14) | | 12.3YF | first fixed | YX11 | | | in 12.3YX | | | | | 12.4(15)T4 | |------------+-------------+-------------| | 12.3YG | 12.3(8)YG6 | 12.4(15)T4 | |------------+-------------+-------------| | | Vulnerable; | | | 12.3YH | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | | Vulnerable; | | | 12.3YI | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | | Vulnerable; | | | 12.3YJ | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | 12.3YK | 12.3(11)YK3 | 12.4(15)T4 | |------------+-------------+-------------| | 12.3YM | 12.3(14) | 12.3(14) | | | YM10 | YM12 | |------------+-------------+-------------| | | Vulnerable; | | | 12.3YQ | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | 12.3YS | 12.3(11)YS2 | 12.4(15)T4 | |------------+-------------+-------------| | | Vulnerable; | | | 12.3YT | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | | Vulnerable; | | | 12.3YU | first fixed | | | | in 12.4XB | | |------------+-------------+-------------| | 12.3YX | 12.3(14)YX9 | 12.3(14) | | | | YX11 | |------------+-------------+-------------| | 12.3YZ | 12.3(11)YZ2 | | |------------+-------------+-------------| | Affected | First Fixed | Recommended | | 12.4-Based | Release | Release | | Releases | | | |------------+-------------+-------------| | | 12.4(10c) | | | | | | | | 12.4(12b) | | | | | | | | 12.4(13c) | | | | | | | | 12.4(16) | | | | | | | 12.4 | 12.4(17a) | 12.4(18a) | | | | | | | 12.4(3h) | | | | | | | | 12.4(5c) | | | | | | | | 12.4(7f) | | | | | | | | 12.4(8d) | | |------------+-------------+-------------| | 12.4JA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4JK | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4JMA | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4JMB | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4JMC | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4JX | Not | | | | Vulnerable | | |------------+-------------+-------------| | | | 12.4(15)MD; | | 12.4MD | 12.4(11)MD1 | Available | | | | on | | | | 09-MAY-08 | |------------+-------------+-------------| | 12.4MR | 12.4(12)MR2 | 12.4(16)MR2 | |------------+-------------+-------------| | 12.4SW | 12.4(11)SW3 | 12.4(15)SW | |------------+-------------+-------------| | | 12.4(11)T3 | | | | | | | | 12.4(15)T | | | | | | | | 12.4(2)T6 | | | 12.4T | | 12.4(15)T4 | | | 12.4(4)T8 | | | | | | | | 12.4(6)T8 | | | | | | | | 12.4(9)T4 | | |------------+-------------+-------------| | | Vulnerable; | | | 12.4XA | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | 12.4XB | 12.4(2)XB6 | | |------------+-------------+-------------| | 12.4XC | 12.4(4)XC7 | | |------------+-------------+-------------| | 12.4XD | 12.4(4)XD8 | 12.4(4)XD10 | |------------+-------------+-------------| | 12.4XE | 12.4(6)XE2 | 12.4(15)T4 | |------------+-------------+-------------| | | Vulnerable; | | | 12.4XF | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | 12.4XG | 12.4(9)XG2 | 12.4(9)XG2 | |------------+-------------+-------------| | 12.4XJ | 12.4(11)XJ4 | 12.4(15)T4 | |------------+-------------+-------------| | | Vulnerable; | | | 12.4XK | first fixed | 12.4(15)T4 | | | in 12.4T | | |------------+-------------+-------------| | 12.4XL | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4XM | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4XN | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4XT | 12.4(6)XT1 | 12.4(6)XT2 | |------------+-------------+-------------| | 12.4XV | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4XW | Not | | | | Vulnerable | | |------------+-------------+-------------| | 12.4XY | Not | | | | Vulnerable | | +----------------------------------------+
Workarounds
The workaround for this vulnerability consists of filtering MDT Data Join packets on the PE device.
The workarounds need to be applied on all Virtual Routing and Forwarding (VRF) interfaces of all PE routers. Otherwise, attackers can target remote PE routers and can still exploit this vulnerability.
Even if only one PE router in the network runs an unfixed version of IOS code, it is vulnerable to packets that come from systems that are connected to remote PE routers. In such a case, workarounds need to be deployed on all PE routers to successfully mitigate this vulnerability.
The "mdt data
Filtering Packets to UDP Port 3232 +---------------------------------
MDT Data Join messages are sent to UDP port 3232. Creating an access-list that filters destination UDP port 3232 and applying it on the VRF interface of the PE router mitigates this vulnerability. Such an access-list looks like this:
access-list 100 deny udp any any eq 3232
access-list 100 permit ip any any
interface Serial 0/0
ip vrf forwarding <vpn-1>
...
ip access-group 100 in
Note that this access-list can also filter legitimate traffic that is destined to UDP port 3232. In such a case, the access-list can be modified to be more specific by providing individual BGP peer IP addresses. This is explained in the section that follows.
Filtering BGP Peer IP Addresses on the VRF Interface +---------------------------------------------------
In order to successfully exploit this vulnerability, an attacker needs to send MDT Data Join messages by spoofing the packets from the IP address of one of the existing iBGP peers. Because MDT Data Join messages are only used between PE routers, the packets from CE devices can safely be filtered.
Creating an access-list that filters iBGP peer IP addresses as source addresses and applying it on the VRF interface of the PE router mitigates this vulnerability. The access-list needs to filter all iBGP peer IP addresses. Such an access-list looks like this example:
access-list 100 deny udp host <ibgp-peer-1> any eq 3232
access-list 100 deny udp host <ibgp-peer-2> any eq 3232
...
access-list 100 deny udp host <ibgp-peer-n> any eq 3232
access-list 100 permit ip any any
interface Serial 0/0
ip vrf forwarding <vpn-1>
...
ip access-group 100 in
Additional mitigation techniques that can be deployed on Cisco devices within the network are available in the Cisco Applied Mitigation Bulletin companion document for this advisory:
http://www.cisco.com/warp/public/707/cisco-amb-20080326-mvpn.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/products/prod_warranties_item09186a008088e31f.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@cisco.com or security-alert@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@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 vulnerability described in this advisory.
This vulnerability was reported to Cisco by Thomas Morin.
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-20080326-mvpn.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@cisco.com
- first-teams@first.org
- bugtraq@securityfocus.com
- vulnwatch@vulnwatch.org
- cisco@spot.colorado.edu
- cisco-nsp@puck.nether.net
- full-disclosure@lists.grok.org.uk
- comp.dcom.sys.cisco@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 | 2008-March-26 | 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.html. 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)
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"10.55" }, { "author": "CNNVD", "id": "CNNVD-200803-438", "trust": 0.6, "value": "MEDIUM" }, { "author": "VULHUB", "id": "VHN-31281", "trust": 0.1, "value": "MEDIUM" } ] } ], "sources": [ { "db": "CERT/CC", "id": "VU#936177" }, { "db": "VULHUB", "id": "VHN-31281" }, { "db": "JVNDB", "id": "JVNDB-2008-001249" }, { "db": "NVD", "id": "CVE-2008-1156" }, { "db": "CNNVD", "id": "CNNVD-200803-438" } ] }, "description": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/description#", "sources": { "@container": "@list", "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources#" } } }, "data": "Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create \"extra multicast states on the core routers\" via a crafted Multicast Distribution Tree (MDT) Data Join message. A vulnerability in the way Cisco IOS handles IPv6 packets could result in a remotely exploitable denial of service. Information gained could aid in further attacks. ----------------------------------------------------------------------\n\nA new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI\nhas been released. The new version includes many new and advanced\nfeatures, which makes it even easier to stay patched. \n\nDownload and test it today:\nhttps://psi.secunia.com/\n\nRead more about this new version:\nhttps://psi.secunia.com/?page=changelog\n\n----------------------------------------------------------------------\n\nTITLE:\nCisco IOS Multiple Vulnerabilities\n\nSECUNIA ADVISORY ID:\nSA29507\n\nVERIFY ADVISORY:\nhttp://secunia.com/advisories/29507/\n\nCRITICAL:\nModerately critical\n\nIMPACT:\nManipulation of data, Exposure of sensitive information, DoS\n\nWHERE:\n\u003eFrom remote\n\nOPERATING SYSTEM:\nCisco IOS 12.x\nhttp://secunia.com/product/182/\nCisco IOS R12.x\nhttp://secunia.com/product/50/\n\nDESCRIPTION:\nSome vulnerabilities have been reported in Cisco IOS, which can be\nexploited by malicious people to disclose sensitive information,\nmanipulate certain data, or to cause a DoS (Denial of Service). \n\n1) A memory leak exists in the handling of completed PPTP sessions,\nwhich can be exploited to exhaust memory on an affected system. \n\n2) An error exists in the handling of PPTP sessions when virtual\naccess interfaces are not removed from the interface descriptor block\n(IDB) and are not reused. This can result in an exhaustion of the\ninterface descriptor block (IDB) limit. \n\nVulnerabilities #1 and #2 are reported in Cisco IOS versions prior to\n12.3 with VPDN enabled. \n\n3) Some errors exist in the Data-Link-Switching (DLSw) feature when\nprocessing UDP and IP protocol 91 packets. This can be exploited to\ncause a reload of the system or a memory leak. \n\n4) An error exists in the processing of IPv6 packets, which can be\nexploited to prevent the interface from receiving additional traffic\nor to cause the device to crash (if RSVP service is configured on the\ninterface) by sending a specially crafted IPv6 packet to the device. \n\nSuccessful exploitation of this vulnerability requires that IPv6 and\ncertain IPv4 UDP services are enabled. \n\nSOLUTION:\nUpdate to the fixed version (please see the vendor\u0027s advisories for\ndetails). \n\nPROVIDED AND/OR DISCOVERED BY:\n1, 2) The vendor credits Martin Kluge of Elxsi Security. \n\nORIGINAL ADVISORY:\nCisco:\nhttp://www.cisco.com/warp/public/707/cisco-sa-20080326-pptp.shtml\nhttp://www.cisco.com/warp/public/707/cisco-sa-20080326-dlsw.shtml\nhttp://www.cisco.com/warp/public/707/cisco-sa-20080326-IPv4IPv6.shtml\nhttp://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml\n\nOTHER REFERENCES:\nUS-CERT VU#936177:\nhttp://www.kb.cert.org/vuls/id/936177\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\neverybody keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor. \n-----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\n National Cyber Alert System\n\n Technical Cyber Security Alert TA08-087B\n\n\nCisco Updates for Multiple Vulnerabilities\n\n Original release date: March 27, 2007\n Last revised: --\n Source: US-CERT\n\n\nSystems Affected\n\n * Cisco IOS\n\n\nOverview\n\n Cisco has released Cisco Security Advisory cisco-sa-20080326-bundle to\n correct multiple vulnerabilities affecting Cisco IOS. Attackers could\n exploit these vulnerabilities to access sensitive information\n or cause a denial of service. \n\n\nI. \n\n\nII. Impact\n\n The impacts of these vulnerabilities vary. Potential consequences\n include disclosure of sensitive information and denial of service. \n\n\nIII. \n\n\nIV. Please send\n email to \u003ccert@cert.org\u003e with \"TA08-087B Feedback VU#936177\" in the\n subject. \n ____________________________________________________________________\n\n For instructions on subscribing to or unsubscribing from this\n mailing list, visit \u003chttp://www.us-cert.gov/cas/signup.html\u003e. \n ____________________________________________________________________\n\n Produced 2008 by US-CERT, a government organization. \n\nCisco has released free software updates that address this\nvulnerability. Workarounds that mitigate this vulnerability are\navailable. \n\nThis advisory is posted at \nhttp://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml\n\nNote: The March 26, 2008 publication includes five Security\nAdvisories. The Advisories all affect Cisco IOS. Each Advisory lists\nthe releases that correct the vulnerability described in the\nAdvisory, and the Advisories also detail the releases that correct\nthe vulnerabilities in all five Advisories. Please reference the\nfollowing software table to find a release that fixes all published\nSecurity Advisories as of March 26th, 2008. \n\n * March 26th bundled IOS Advisory Table\n http://www.cisco.com/warp/public/707/cisco-sa-20080326-bundle.shtml\n\nIndividual publication links are listed below:\n\n * Cisco IOS Virtual Private Dial-up Network Denial of Service\n Vulnerability\n http://www.cisco.com/warp/public/707/cisco-sa-20080326-pptp.shtml\n\n * Multiple DLSw Denial of Service Vulnerabilities in Cisco IOS\n http://www.cisco.com/warp/public/707/cisco-sa-20080326-dlsw.shtml\n\n * Cisco IOS User Datagram Protocol Delivery Issue For IPv4/IPv6\n Dual-stack Routers\n http://www.cisco.com/warp/public/707/cisco-sa-20080326-IPv4IPv6.shtml\n\n * Vulnerability in Cisco IOS with OSPF, MPLS VPN, and Supervisor\n 32, Supervisor 720, or Route Switch Processor 720\n http://www.cisco.com/warp/public/707/cisco-sa-20080326-queue.shtml\n\n * Cisco IOS Multicast Virtual Private Network (MVPN) Data Leak\n http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml\n\nAffected Products\n=================\n\nVulnerable Products\n+------------------\n\nDevices that run Cisco IOS and are configured for MVPN are affected. \n\nAn IOS device that is configured for MVPN has a line that is similar\nto this in the running configuration example:\n\n mdt default \u003cgroup-address\u003e\n\nIn order to determine the software that runs on a Cisco IOS product,\nlog in to the device and issue the show version command to display\nthe system banner. Cisco IOS\\xae software identifies itself as\n\"Internetwork Operating System Software\" or simply \"IOS.\" On the next\nline of output, the image name displays between parentheses, followed\nby \"Version\" and the Cisco IOS release name. Other Cisco devices do\nnot have the \"show version\" command or give different output. \n\nThe following example shows output from a device that runs an IOS\nimage:\n\n Router\u003eshow version\n Cisco IOS Software, 7200 Software (C7200-IK9S-M), Version 12.3(14)T1, RELEASE SOFTWARE (fc1)\n Technical Support: http://www.cisco.com/techsupport\n Copyright (c) 1986-2005 by Cisco Systems, Inc. \n Compiled Thu 31-Mar-05 08:04 by yiyan\n\nAdditional information about Cisco IOS release naming is available at\nthe following link: \nhttp://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_white_paper09186a008018305e.shtml. \n\nProducts Confirmed Not Vulnerable\n+--------------------------------\n\nNo other Cisco products, including IOS XR software, are currently\nknown to be affected by this vulnerability. \n\nDetails\n=======\n\nMVPN architecture introduces an additional set of protocols and\nprocedures that help enable a service provider to support multicast\ntraffic in an MPLS VPN. MVPN allows the transparent transport of IP\nmulticast traffic across the MPLS VPN backbone of a provider and\nallows a service provider to offer multicast services to MPLS VPN\ncustomers. MDT Data Join messages can be sent in\nunicast or multicast. The vulnerability can also allow leaking\nmulticast traffic from different MPLS VPNs. In order to successfully exploit this\nvulnerability, an attacker needs to know or guess the Border Gateway\nProtocol (BGP) peering IP address of a remote PE router and the\naddress of the multicast group that is used in other MPLS VPNs. \n\nThis vulnerability is documented in the Cisco Bug ID CSCsi01470 \nand has been assigned Common Vulnerabilities and Exposures (CVE) ID \nCVE-2008-1156. \n\nVulnerability Scoring Details\n=============================\n\nCisco has provided scores for the vulnerabilities in this advisory\nbased on the Common Vulnerability Scoring System (CVSS). The CVSS\nscoring in this Security Advisory is done in accordance with CVSS\nVersion 2.0. \n\nCVSS is a standards-based scoring method that conveys vulnerability\nseverity and helps determine urgency and priority of response. \n\nCisco has provided a base and temporal score. Customers can then\ncompute environmental scores to assist in determining the impact of\nthe vulnerability in individual networks. \n\nCisco has provided an FAQ to answer additional questions regarding\nCVSS at\nhttp://www.cisco.com/web/about/security/intelligence/cvss-qandas.html\n\nCisco has also provided a CVSS calculator to help compute the\nenvironmental impact for individual networks at\nhttp://intellishield.cisco.com/security/alertmanager/cvss \n\nCSCsi01470 - Crafted MDT Data Join TLV in VRF causes multicast state\n\n CVSS Base Score - 7.5\n\n Access Vector: Network\n Access Complexity: Low\n Authentication: None\n\n Confidentiality Impact: Partial\n Integrity Impact: Partial\n Availability Impact: Partial\n\n CVSS Temporal Score - 6.2\n\n Exploitability: Functional\n Remediation Level: Official-Fix\n Report Confidence: Confirmed\n\nImpact\n======\n\nSuccessful exploitation of the vulnerability can result in the\ncreation of extra multicast states on the core routers or the leaking\nof multicast traffic from one MPLS VPN to another. \n\nSoftware Versions and Fixes\n===========================\n\nWhen considering software upgrades, also consult \nhttp://www.cisco.com/go/psirt and any subsequent advisories to \ndetermine exposure and a complete upgrade solution. \n\nIn all cases, customers should exercise caution to be certain the\ndevices to be upgraded contain sufficient memory and that current\nhardware and software configurations will continue to be supported\nproperly by the new release. If the information is not clear, contact\nthe Cisco Technical Assistance Center (TAC) or your contracted\nmaintenance provider for assistance. \n\nEach row of the Cisco IOS software table (below) names a Cisco IOS\nrelease train. If a given release train is vulnerable, then the\nearliest possible releases that contain the fix (along with the\nanticipated date of availability for each, if applicable) are listed\nin the \"First Fixed Release\" column of the table. The \"Recommended\nRelease\" column indicates the releases which have fixes for all the\npublished vulnerabilities at the time of this Advisory. A device\nrunning a release in the given train that is earlier than the release\nin a specific column (less than the First Fixed Release) is known to\nbe vulnerable. Cisco recommends upgrading to a release equal to or\nlater than the release in the \"Recommended Releases\" column of the\ntable. \n\n+----------------------------------------+\n| Major | Availability of Repaired |\n| Release | Releases |\n|------------+---------------------------|\n| Affected | First Fixed | Recommended |\n| 12.0-Based | Release | Release |\n| Releases | | |\n|------------+-------------+-------------|\n| 12.0 | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0DA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0DB | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0DC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | 12.0(32)S9 | |\n| 12.0S | | 12.0(32)S10 |\n| | 12.0(33)S | |\n|------------+-------------+-------------|\n| 12.0SC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0SL | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0SP | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0ST | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.0SX | first fixed | 12.0(32)S10 |\n| | in 12.0S | |\n|------------+-------------+-------------|\n| 12.0SY | 12.0(32)SY4 | 12.0(32)SY5 |\n|------------+-------------+-------------|\n| 12.0SZ | 12.0(30)SZ4 | 12.0(32)S10 |\n|------------+-------------+-------------|\n| 12.0T | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0W | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0WC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0WT | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XB | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XD | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XE | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XF | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XG | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XH | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XI | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XJ | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XK | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XL | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XM | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XN | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XQ | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XR | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XS | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XV | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.0XW | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| Affected | First Fixed | Recommended |\n| 12.1-Based | Release | Release |\n| Releases | | |\n|----------------------------------------|\n| There are no affected 12.1 based |\n| releases |\n|----------------------------------------|\n| Affected | First Fixed | Recommended |\n| 12.2-Based | Release | Release |\n| Releases | | |\n|------------+-------------+-------------|\n| 12.2 | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2B | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2BC | first fixed | 12.3(23)BC1 |\n| | in 12.3BC | |\n|------------+-------------+-------------|\n| 12.2BW | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2BY | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2BZ | first fixed | |\n| | in 12.3XI | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2CX | first fixed | 12.3(23)BC1 |\n| | in 12.3BC | |\n|------------+-------------+-------------|\n| 12.2CY | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2CZ | Vulnerable; | |\n| | contact TAC | |\n|------------+-------------+-------------|\n| 12.2DA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2DD | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2DX | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | | 12.2(25) |\n| | | EWA13 |\n| | Vulnerable; | |\n| 12.2EU | first fixed | 12.2(31) |\n| | in 12.2SG | SGA5 |\n| | | |\n| | | 12.2(44)SG |\n|------------+-------------+-------------|\n| | | 12.2(25) |\n| | | EWA13 |\n| | Vulnerable; | |\n| 12.2EW | first fixed | 12.2(31) |\n| | in 12.2SG | SGA5 |\n| | | |\n| | | 12.2(44)SG |\n|------------+-------------+-------------|\n| | 12.2(25) | |\n| | EWA10 | 12.2(25) |\n| 12.2EWA | | EWA13 |\n| | 12.2(25) | |\n| | EWA11 | |\n|------------+-------------+-------------|\n| 12.2EX | 12.2(37)EX | 12.2(40)EX1 |\n|------------+-------------+-------------|\n| 12.2EY | 12.2(37)EY | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2EZ | first fixed | |\n| | in 12.2SEE | |\n|------------+-------------+-------------|\n| 12.2FX | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2FY | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2FZ | first fixed | 12.2(44)SE1 |\n| | in 12.2SE | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2IXA | first fixed | |\n| | in 12.2IXD | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2IXB | first fixed | |\n| | in 12.2IXD | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2IXC | first fixed | |\n| | in 12.2IXD | |\n|------------+-------------+-------------|\n| 12.2IXD | 12.2(18) | |\n| | IXD1 | |\n|------------+-------------+-------------|\n| 12.2IXE | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2JA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2JK | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2MB | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2MC | 12.2(15) | 12.4(18a) |\n| | MC2h | |\n|------------+-------------+-------------|\n| | 12.2(14)S18 | |\n| | | |\n| | 12.2(18)S13 | |\n| 12.2S | | 12.2(25)S15 |\n| | 12.2(20)S14 | |\n| | | |\n| | 12.2(25)S13 | |\n|------------+-------------+-------------|\n| | 12.2(28)SB7 | |\n| | | |\n| | 12.2(31)SB5 | |\n| 12.2SB | | 12.2(28) |\n| | 12.2(33)SB; | SB12 |\n| | Available | |\n| | on | |\n| | 31-MAR-08 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| | first fixed | |\n| 12.2SBC | in 12.2SB; | 12.2(28) |\n| | Available | SB12 |\n| | on | |\n| | 31-MAR-08 | |\n|------------+-------------+-------------|\n| 12.2SCA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | 12.2(35)SE4 | |\n| 12.2SE | | 12.2(44)SE1 |\n| | 12.2(37)SE | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2SEA | first fixed | |\n| | in 12.2SEE | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2SEB | first fixed | |\n| | in 12.2SEE | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2SEC | first fixed | |\n| | in 12.2SEE | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2SED | first fixed | |\n| | in 12.2SEE | |\n|------------+-------------+-------------|\n| 12.2SEE | 12.2(25) | |\n| | SEE4 | |\n|------------+-------------+-------------|\n| 12.2SEF | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2SEG | 12.2(25) | 12.2(25) |\n| | SEG3 | SEG4 |\n|------------+-------------+-------------|\n| | 12.2(25)SG2 | |\n| | | |\n| | 12.2(31)SG2 | |\n| 12.2SG | | 12.2(44)SG |\n| | 12.2(37)SG1 | |\n| | | |\n| | 12.2(40)SG | |\n|------------+-------------+-------------|\n| | 12.2(31) | |\n| | SGA2 | |\n| | | |\n| | 12.2(31) | |\n| | SGA3 | 12.2(31) |\n| 12.2SGA | | SGA5 |\n| | 12.2(31) | |\n| | SGA6; | |\n| | Available | |\n| | on | |\n| | 07-APR-08 | |\n|------------+-------------+-------------|\n| 12.2SL | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2SM | 12.2(29)SM2 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2SO | migrate to | 12.2(29)SVD |\n| | any release | |\n| | in 12.2SVA | |\n|------------+-------------+-------------|\n| 12.2SRA | 12.2(33) | 12.2(33) |\n| | SRA4 | SRA7 |\n|------------+-------------+-------------|\n| | | 12.2(33) |\n| | 12.2(33) | SRB3; |\n| 12.2SRB | SRB1 | Available |\n| | | on |\n| | | 31-MAR-08 |\n|------------+-------------+-------------|\n| 12.2SRC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2SU | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.2SV | 12.2(29b)SV | 12.2(29b)SV |\n|------------+-------------+-------------|\n| 12.2SVA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2SVC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2SVD | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2SW | 12.2(25) | |\n| | SW11 | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.2(18) |\n| 12.2SX | first fixed | SXF13 |\n| | in 12.2SXF | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.2(18) |\n| 12.2SXA | first fixed | SXF13 |\n| | in 12.2SXF | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.2(18) |\n| 12.2SXB | first fixed | SXF13 |\n| | in 12.2SXF | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.2(18) |\n| 12.2SXD | first fixed | SXF13 |\n| | in 12.2SXF | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.2(18) |\n| 12.2SXE | first fixed | SXF13 |\n| | in 12.2SXF | |\n|------------+-------------+-------------|\n| | 12.2(18) | |\n| | SXF10 | |\n| | | |\n| 12.2SXF | 12.2(18) | 12.2(18) |\n| | SXF10a | SXF13 |\n| | | |\n| | 12.2(18) | |\n| | SXF12a | |\n|------------+-------------+-------------|\n| 12.2SXH | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.2(18) |\n| 12.2SY | first fixed | SXF13 |\n| | in 12.2SXF | |\n|------------+-------------+-------------|\n| | | 12.2(25)S15 |\n| | Vulnerable; | |\n| 12.2SZ | first fixed | 12.2(28) |\n| | in 12.2S | SB12 |\n| | | |\n| | | 12.2(33)SRC |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2T | first fixed | 12.3(26) |\n| | in 12.3 | |\n|------------+-------------+-------------|\n| 12.2TPC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| | first fixed | |\n| 12.2UZ | in 12.2SB; | 12.2(28) |\n| | Available | SB12 |\n| | on | |\n| | 31-MAR-08 | |\n|------------+-------------+-------------|\n| 12.2XA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XB | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XD | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XE | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XF | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XG | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XH | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XI | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XJ | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XK | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XL | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XM | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XN | 12.2(33)XN1 | 12.3(26) |\n|------------+-------------+-------------|\n| 12.2XO | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XQ | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XR | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XS | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XT | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XU | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XV | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2XW | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2YA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2YB | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2YC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2YD | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2YE | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2YF | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2YG | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YH | first fixed | 12.3(26) |\n| | in 12.3 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YJ | first fixed | 12.3(26) |\n| | in 12.3 | |\n|------------+-------------+-------------|\n| 12.2YK | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YL | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YM | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YN | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.2YO | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.2YP | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YQ | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YR | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.2YS | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YT | first fixed | 12.3(26) |\n| | in 12.3 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YU | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YV | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.2YW | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2YX | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.2YY | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | | 12.2(25)S15 |\n| | Vulnerable; | |\n| 12.2YZ | first fixed | 12.2(28) |\n| | in 12.2S | SB12 |\n| | | |\n| | | 12.2(33)SRC |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.2(18) |\n| 12.2ZA | first fixed | SXF13 |\n| | in 12.2SXF | |\n|------------+-------------+-------------|\n| 12.2ZB | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2ZC | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.2ZD | Vulnerable; | |\n| | contact TAC | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2ZE | first fixed | 12.3(26) |\n| | in 12.3 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2ZF | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.4(15)T4 |\n| 12.2ZG | first fixed | |\n| | in 12.3YG | 12.4(18a) |\n|------------+-------------+-------------|\n| 12.2ZH | 12.2(13)ZH9 | 12.2(13) |\n| | | ZH11 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2ZJ | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.4(15)T4 |\n| 12.2ZL | first fixed | |\n| | in 12.4 | 12.4(18a) |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2ZP | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.2ZU | migrate to | 12.2(33) |\n| | any release | SXH2 |\n| | in 12.2SXH | |\n|------------+-------------+-------------|\n| 12.2ZY | 12.2(18)ZY1 | 12.2(18)ZY2 |\n|------------+-------------+-------------|\n| Affected | First Fixed | Recommended |\n| 12.3-Based | Release | Release |\n| Releases | | |\n|------------+-------------+-------------|\n| | 12.3(17c) | |\n| | | |\n| | 12.3(18a) | |\n| | | |\n| | 12.3(19a) | |\n| | | |\n| 12.3 | 12.3(20a) | 12.3(26) |\n| | | |\n| | 12.3(21b) | |\n| | | |\n| | 12.3(22a) | |\n| | | |\n| | 12.3(23) | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3B | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | 12.3(17b) | |\n| | BC8 | |\n| | | |\n| 12.3BC | 12.3(21a) | 12.3(23)BC1 |\n| | BC2 | |\n| | | |\n| | 12.3(23)BC | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3BW | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.3EU | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.3JA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.3JEA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.3JEB | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.3JEC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Releases | |\n| | prior to | |\n| | 12.3(8)JK1 | |\n| | are | |\n| 12.3JK | vulnerable, | 12.3(8)JK1 |\n| | release | |\n| | 12.3(8)JK1 | |\n| | and later | |\n| | are not | |\n| | vulnerable; | |\n|------------+-------------+-------------|\n| 12.3JL | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.3JX | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3T | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.3TPC | 12.3(4) | |\n| | TPC11b | |\n|------------+-------------+-------------|\n| 12.3VA | Vulnerable; | |\n| | contact TAC | |\n|------------+-------------+-------------|\n| | | 12.3(2)XA7; |\n| 12.3XA | 12.3(2)XA6 | Available |\n| | | on |\n| | | 31-MAR-08 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XB | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | | 12.4(15)T4 |\n| 12.3XC | 12.3(2)XC5 | |\n| | | 12.4(18a) |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XD | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | | 12.4(15)T4 |\n| 12.3XE | 12.3(2)XE5 | |\n| | | 12.4(18a) |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XF | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.4(15)T4 |\n| 12.3XG | first fixed | |\n| | in 12.3YG | 12.4(18a) |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XH | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| 12.3XI | 12.3(7) | |\n| | XI10a | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.3(14) |\n| 12.3XJ | first fixed | YX11 |\n| | in 12.3YX | |\n| | | 12.4(15)T4 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XK | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XQ | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | | 12.3(7)XR8; |\n| 12.3XR | 12.3(7)XR7 | Available |\n| | | on |\n| | | 31-MAR-08 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XS | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XU | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.3(14) |\n| 12.3XW | first fixed | YX11 |\n| | in 12.3YX | |\n| | | 12.4(15)T4 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3XY | first fixed | 12.4(18a) |\n| | in 12.4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.4(15)T4 |\n| 12.3YA | first fixed | |\n| | in 12.4 | 12.4(18a) |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3YD | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| | Vulnerable; | 12.3(14) |\n| 12.3YF | first fixed | YX11 |\n| | in 12.3YX | |\n| | | 12.4(15)T4 |\n|------------+-------------+-------------|\n| 12.3YG | 12.3(8)YG6 | 12.4(15)T4 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3YH | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3YI | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3YJ | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| 12.3YK | 12.3(11)YK3 | 12.4(15)T4 |\n|------------+-------------+-------------|\n| 12.3YM | 12.3(14) | 12.3(14) |\n| | YM10 | YM12 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3YQ | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| 12.3YS | 12.3(11)YS2 | 12.4(15)T4 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3YT | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.3YU | first fixed | |\n| | in 12.4XB | |\n|------------+-------------+-------------|\n| 12.3YX | 12.3(14)YX9 | 12.3(14) |\n| | | YX11 |\n|------------+-------------+-------------|\n| 12.3YZ | 12.3(11)YZ2 | |\n|------------+-------------+-------------|\n| Affected | First Fixed | Recommended |\n| 12.4-Based | Release | Release |\n| Releases | | |\n|------------+-------------+-------------|\n| | 12.4(10c) | |\n| | | |\n| | 12.4(12b) | |\n| | | |\n| | 12.4(13c) | |\n| | | |\n| | 12.4(16) | |\n| | | |\n| 12.4 | 12.4(17a) | 12.4(18a) |\n| | | |\n| | 12.4(3h) | |\n| | | |\n| | 12.4(5c) | |\n| | | |\n| | 12.4(7f) | |\n| | | |\n| | 12.4(8d) | |\n|------------+-------------+-------------|\n| 12.4JA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4JK | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4JMA | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4JMB | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4JMC | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4JX | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| | | 12.4(15)MD; |\n| 12.4MD | 12.4(11)MD1 | Available |\n| | | on |\n| | | 09-MAY-08 |\n|------------+-------------+-------------|\n| 12.4MR | 12.4(12)MR2 | 12.4(16)MR2 |\n|------------+-------------+-------------|\n| 12.4SW | 12.4(11)SW3 | 12.4(15)SW |\n|------------+-------------+-------------|\n| | 12.4(11)T3 | |\n| | | |\n| | 12.4(15)T | |\n| | | |\n| | 12.4(2)T6 | |\n| 12.4T | | 12.4(15)T4 |\n| | 12.4(4)T8 | |\n| | | |\n| | 12.4(6)T8 | |\n| | | |\n| | 12.4(9)T4 | |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.4XA | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| 12.4XB | 12.4(2)XB6 | |\n|------------+-------------+-------------|\n| 12.4XC | 12.4(4)XC7 | |\n|------------+-------------+-------------|\n| 12.4XD | 12.4(4)XD8 | 12.4(4)XD10 |\n|------------+-------------+-------------|\n| 12.4XE | 12.4(6)XE2 | 12.4(15)T4 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.4XF | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| 12.4XG | 12.4(9)XG2 | 12.4(9)XG2 |\n|------------+-------------+-------------|\n| 12.4XJ | 12.4(11)XJ4 | 12.4(15)T4 |\n|------------+-------------+-------------|\n| | Vulnerable; | |\n| 12.4XK | first fixed | 12.4(15)T4 |\n| | in 12.4T | |\n|------------+-------------+-------------|\n| 12.4XL | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4XM | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4XN | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4XT | 12.4(6)XT1 | 12.4(6)XT2 |\n|------------+-------------+-------------|\n| 12.4XV | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4XW | Not | |\n| | Vulnerable | |\n|------------+-------------+-------------|\n| 12.4XY | Not | |\n| | Vulnerable | |\n+----------------------------------------+\n\nWorkarounds\n===========\n\nThe workaround for this vulnerability consists of filtering MDT Data\nJoin packets on the PE device. \n\nThe workarounds need to be applied on all Virtual Routing and\nForwarding (VRF) interfaces of all PE routers. Otherwise, attackers\ncan target remote PE routers and can still exploit this\nvulnerability. \n\nEven if only one PE router in the network runs an unfixed version of\nIOS code, it is vulnerable to packets that come from systems that are\nconnected to remote PE routers. In such a case, workarounds need to\nbe deployed on all PE routers to successfully mitigate this\nvulnerability. \n\nThe \"mdt data \u003cgroup\u003e \u003cmask\u003e\" or \"mdt data \u003cgroup\u003e \u003cmask\u003e threshold \n\u003cn\u003e list \u003cacl\u003e\" commands do not mitigate this vulnerability. \n\nFiltering Packets to UDP Port 3232\n+---------------------------------\n\nMDT Data Join messages are sent to UDP port 3232. Creating an\naccess-list that filters destination UDP port 3232 and applying it on\nthe VRF interface of the PE router mitigates this vulnerability. Such\nan access-list looks like this:\n\n access-list 100 deny udp any any eq 3232\n access-list 100 permit ip any any\n \n interface Serial 0/0\n ip vrf forwarding \u003cvpn-1\u003e\n ... \n ip access-group 100 in\n\nNote that this access-list can also filter legitimate traffic that is\ndestined to UDP port 3232. In such a case, the access-list can be\nmodified to be more specific by providing individual BGP peer IP\naddresses. This is explained in the section that follows. \n\nFiltering BGP Peer IP Addresses on the VRF Interface\n+---------------------------------------------------\n\nIn order to successfully exploit this vulnerability, an attacker\nneeds to send MDT Data Join messages by spoofing the packets from the\nIP address of one of the existing iBGP peers. Because MDT Data Join\nmessages are only used between PE routers, the packets from CE\ndevices can safely be filtered. \n\nCreating an access-list that filters iBGP peer IP addresses as source\naddresses and applying it on the VRF interface of the PE router\nmitigates this vulnerability. The access-list needs to filter all\niBGP peer IP addresses. Such an access-list looks like this example:\n\n access-list 100 deny udp host \u003cibgp-peer-1\u003e any eq 3232 \n access-list 100 deny udp host \u003cibgp-peer-2\u003e any eq 3232\n ... \n access-list 100 deny udp host \u003cibgp-peer-n\u003e any eq 3232 \n access-list 100 permit ip any any\n \n interface Serial 0/0\n ip vrf forwarding \u003cvpn-1\u003e\n ... \n ip access-group 100 in\n\nAdditional mitigation techniques that can be deployed on Cisco\ndevices within the network are available in the Cisco Applied\nMitigation Bulletin companion document for this advisory:\n\nhttp://www.cisco.com/warp/public/707/cisco-amb-20080326-mvpn.shtml\n\nObtaining Fixed Software\n========================\n\nCisco has released free software updates that address this\nvulnerability. Prior to deploying software, customers should consult\ntheir maintenance provider or check the software for feature set\ncompatibility and known issues specific to their environment. \n\nCustomers may only install and expect support for the feature sets\nthey have purchased. By installing, downloading, accessing or\notherwise using such software upgrades, customers agree to be bound\nby the terms of Cisco\u0027s software license terms found at \nhttp://www.cisco.com/en/US/products/prod_warranties_item09186a008088e31f.html\nor as otherwise set forth at Cisco.com Downloads at \nhttp://www.cisco.com/public/sw-center/sw-usingswc.shtml. \n\nDo not contact psirt@cisco.com or security-alert@cisco.com for\nsoftware upgrades. \n\nCustomers with Service Contracts\n+-------------------------------\n\nCustomers with contracts should obtain upgraded software through\ntheir regular update channels. For most customers, this means that\nupgrades should be obtained through the Software Center on Cisco\u0027s\nworldwide website at http://www.cisco.com. \n\nCustomers using Third Party Support Organizations\n+------------------------------------------------\n\nCustomers whose Cisco products are provided or maintained through\nprior or existing agreements with third-party support organizations,\nsuch as Cisco Partners, authorized resellers, or service providers\nshould contact that support organization for guidance and assistance\nwith the appropriate course of action in regards to this advisory. \n\nThe effectiveness of any workaround or fix is dependent on specific\ncustomer situations, such as product mix, network topology, traffic\nbehavior, and organizational mission. Due to the variety of affected\nproducts and releases, customers should consult with their service\nprovider or support organization to ensure any applied workaround or\nfix is the most appropriate for use in the intended network before it\nis deployed. \n\nCustomers without Service Contracts\n+----------------------------------\n\nCustomers who purchase direct from Cisco but do not hold a Cisco\nservice contract, and customers who purchase through third-party\nvendors but are unsuccessful in obtaining fixed software through\ntheir point of sale should acquire upgrades by contacting the Cisco\nTechnical Assistance Center (TAC). TAC contacts are as follows. \n\n * +1 800 553 2447 (toll free from within North America)\n * +1 408 526 7209 (toll call from anywhere in the world)\n * e-mail: tac@cisco.com\n\nCustomers should have their product serial number available and be\nprepared to give the URL of this notice as evidence of entitlement to\na free upgrade. Free upgrades for non-contract customers must be\nrequested through the TAC. \n\nRefer to http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml\nfor additional TAC contact information, including localized telephone\nnumbers, and instructions and e-mail addresses for use in various\nlanguages. \n\nExploitation and Public Announcements\n=====================================\n\nThe Cisco PSIRT is not aware of any public announcements or malicious\nuse of the vulnerability described in this advisory. \n\nThis vulnerability was reported to Cisco by Thomas Morin. \n\nStatus of this Notice: FINAL\n============================\n\nTHIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY\nKIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF\nMERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE\nINFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS\nAT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS\nDOCUMENT AT ANY TIME. \n\nA stand-alone copy or Paraphrase of the text of this document that\nomits the distribution URL in the following section is an\nuncontrolled copy, and may lack important information or contain\nfactual errors. \n\nDistribution\n============\n\nThis advisory is posted on Cisco\u0027s worldwide website at :\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml\n\nIn addition to worldwide web posting, a text version of this notice\nis clear-signed with the Cisco PSIRT PGP key and is posted to the\nfollowing e-mail and Usenet news recipients. \n\n * cust-security-announce@cisco.com\n * first-teams@first.org\n * bugtraq@securityfocus.com\n * vulnwatch@vulnwatch.org\n * cisco@spot.colorado.edu\n * cisco-nsp@puck.nether.net\n * full-disclosure@lists.grok.org.uk\n * comp.dcom.sys.cisco@newsgate.cisco.com\n\nFuture updates of this advisory, if any, will be placed on Cisco\u0027s\nworldwide website, but may or may not be actively announced on\nmailing lists or newsgroups. Users concerned about this problem are\nencouraged to check the above URL for any updates. \n\nRevision History\n================\n\n+---------------------------------------+\n| Revision | | Initial |\n| 1.0 | 2008-March-26 | public |\n| | | release. |\n+---------------------------------------+\n\nCisco Security Procedures\n=========================\n\nComplete information on reporting security vulnerabilities in Cisco\nproducts, obtaining assistance with security incidents, and\nregistering to receive security information from Cisco, is available\non Cisco\u0027s worldwide website at \nhttp://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. \nThis includes instructions for press inquiries regarding Cisco \nsecurity notices. 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cve-2008-1156
Vulnerability from fkie_nvd
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:cisco:cisco_ios:12.3:*:*:*:*:*:*:*", "matchCriteriaId": "8A8D0F64-5DE1-4A6F-91F0-8A8509BF077F", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:cisco_ios:12.4:*:*:*:*:*:*:*", "matchCriteriaId": "E6A60117-E4D1-4741-98A2-E643A26616A7", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:*", "matchCriteriaId": "8F86F790-6247-42F2-9487-3D60A2842F52", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*", "matchCriteriaId": "E4BC49F2-3DCB-45F0-9030-13F6415EE178", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create \"extra multicast states on the core routers\" via a crafted Multicast Distribution Tree (MDT) Data Join message." }, { "lang": "es", "value": "Vulnerabilidad no especificada en la implementaci\u00f3n de la Red Privada Virtual Multicast (MVPN) en Cisco IOS 12.0, 12.2, 12.3, y 12.4 permite a atacantes remotos crear \"estados multicast extra en los routers core\" a trav\u00e9s de mensajes Multicast Distribution Tree (MDT) Data Join manipulados." } ], "id": "CVE-2008-1156", "lastModified": "2024-11-21T00:43:48.640", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0" }, "exploitabilityScore": 4.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": true, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true } ] }, "published": "2008-03-27T10:44:00.000", "references": [ { "source": "ykramarz@cisco.com", "url": "http://secunia.com/advisories/29507" }, { "source": "ykramarz@cisco.com", "tags": [ "Patch" ], "url": "http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml" }, { "source": "ykramarz@cisco.com", "url": "http://www.securityfocus.com/bid/28464" }, { "source": "ykramarz@cisco.com", "url": "http://www.securitytracker.com/id?1019715" }, { "source": "ykramarz@cisco.com", "tags": [ "US Government Resource" ], "url": "http://www.us-cert.gov/cas/techalerts/TA08-087B.html" }, { "source": "ykramarz@cisco.com", "url": "http://www.vupen.com/english/advisories/2008/1006/references" }, { "source": "ykramarz@cisco.com", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41468" }, { "source": "ykramarz@cisco.com", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/29507" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "http://www.cisco.com/warp/public/707/cisco-sa-20080326-mvpn.shtml" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/28464" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id?1019715" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "US Government Resource" ], "url": "http://www.us-cert.gov/cas/techalerts/TA08-087B.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.vupen.com/english/advisories/2008/1006/references" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41468" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5648" } ], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-16" }, { "lang": "en", "value": "CWE-200" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.