Detections
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Cisco IOS MPLS VPN May Leak Information - Cisco Systems
medium Nessus Plugin ID 49028
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Synopsis
The remote device is missing a vendor-supplied security patch.Description
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.
Solution
Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20080924-vpn.See Also
Plugin Details
Severity: Medium
ID: 49028
File Name: cisco-sa-20080924-vpnhttp.nasl
Version: 1.19
Type: local
Family: CISCO
Published: 9/1/2010
Updated: 11/15/2018
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.8
CVSS v2
Risk Factor: Medium
Base Score: 5.1
Temporal Score: 3.8
Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: cpe:/o:cisco:ios
Required KB Items: Host/Cisco/IOS/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 9/24/2008
Vulnerability Publication Date: 9/24/2008
Reference Information
CVE: CVE-2008-3803
BID: 31366