Executive Summary

Summary
Title Cisco IOS MPLS VPN May Leak Information
Informations
Name cisco-sa-20080924-vpn First vendor Publication 2008-07-11
Vendor Cisco Last vendor Modification 2008-09-24
Severity (Vendor) N/A Revision 1.0

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:N/C:P/I:P/A:P)
Cvss Base Score 5.1 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity High
Cvss Expoit Score 4.9 Authentication None Required
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Detail

Devices running Cisco IOS versions 12.0S, 12.2, 12.3 or 12.4 and configured for Multiprotocol Label Switching (MPLS) Virtual Private Networks (VPNs) or VPN Routing and Forwarding Lite (VRF Lite) and using Border Gateway Protocol (BGP) between Customer Edge (CE) and Provider Edge (PE) devices may permit information to propagate between VPNs.

Workarounds are available to help mitigate this vulnerability.

This issue is triggered by a logic error when processing extended communities on the PE device.

This issue cannot be deterministically exploited by an attacker.

Cisco has released free software updates that address these vulnerabilities. Workarounds that mitigate these vulnerabilities are available.

Original Source

Url : http://www.cisco.com/en/US/products/products_security_advisory09186a0080a0 (...)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:5919
 
Oval ID: oval:org.mitre.oval:def:5919
Title: Cisco IOS MPLS VPN May Leak Information Vulnerability
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.
Family: ios Class: vulnerability
Reference(s): CVE-2008-3803
 Version: 1
Platform(s): Cisco IOS
 Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3

Open Source Vulnerability Database (OSVDB)

Id Description
48742 Cisco IOS MPLS Extended Community Cross VPN Information Disclosure

Nessus® Vulnerability Scanner

Date Description
2010-09-01 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20080924-vpnhttp.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2014-02-17 10:21:54
  • Multiple Updates