Cisco IOS Software RSVP Denial of Service Vulnerability (cisco-sa-20120328-rsvp)

high Nessus Plugin ID 58571

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

Cisco IOS Software and Cisco IOS XE Software contain a vulnerability in the RSVP feature when used on a device configured with VPN routing and forwarding (VRF) instances. An unauthenticated, remote attacker can exploit this to cause an interface wedge, which can lead to loss of connectivity, loss of routing protocol adjacency, and other denial of service (DoS) conditions. This vulnerability could be exploited repeatedly to cause an extended DoS condition. A workaround is available to mitigate this vulnerability.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID(s) CSCts80643.

Plugin Details

Severity: High

ID: 58571

File Name: cisco-sa-20120328-rsvp.nasl

Version: 1.13

Type: local

Family: CISCO

Published: 4/2/2012

Updated: 3/7/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2012-1311

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/28/2012

Vulnerability Publication Date: 3/28/2012

Reference Information

CVE: CVE-2012-1311

BID: 52754

CISCO-SA: cisco-sa-20120328-rsvp

CISCO-BUG-ID: CSCts80643

Detections

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