CVE-2008-3803

Cisco IOS 12.0-12.4 - VPN Traffic Exposure via MPLS Route Target Corruption

Title source: llm

Description

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.

References (6)

Core 6

Core References

Third Party Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/31990

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/31366

Third Party Advisory vdb-entry signature x_refsource_oval

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5919

Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id?1020940

Permissions Required vdb-entry x_refsource_vupen

http://www.vupen.com/english/advisories/2008/2670

Vendor Advisory vendor-advisory x_refsource_cisco

http://www.cisco.com/en/US/products/products_security_advisory09186a0080a014a9.shtml

Scores

EPSS 0.0265

EPSS Percentile 84.0%

Details

Status published

Products (3)

cisco/ios 12.0s

cisco/ios 12.0sx

cisco/ios 12.0sz

Published Sep 26, 2008

Tracked Since Feb 18, 2026