A logic error in Cisco IOS 12.0 through 12.4, when a Multiprotocol Label Switching (MPLS) VPN with extended communities is configured, sometimes causes a corrupted route target (RT) to be used, which allows remote attackers to read traffic from other VPNs in opportunistic circumstances.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios | Cisco | 12.0s (including) | 12.0s (including) |
| Ios | Cisco | 12.0sx (including) | 12.0sx (including) |
| Ios | Cisco | 12.0sz (including) | 12.0sz (including) |
References
- http://secunia.com/advisories/31990
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014a9.shtml
- http://www.securityfocus.com/bid/31366
- http://www.securitytracker.com/id?1020940
- http://www.vupen.com/english/advisories/2008/2670
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5919
- http://secunia.com/advisories/31990
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014a9.shtml
- http://www.securityfocus.com/bid/31366
- http://www.securitytracker.com/id?1020940
- http://www.vupen.com/english/advisories/2008/2670
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5919