Cisco IOS Software Zone-Based Policy Firewall Vulnerability - Cisco Systems

high Nessus Plugin ID 49043

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Synopsis

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

Description

Cisco IOS devices that are configured with Cisco IOS Zone-Based Policy Firewall Session Initiation Protocol (SIP) inspection are vulnerable to denial of service (DoS) attacks when processing a specific SIP transit packet. Exploitation of the vulnerability could result in a reload of the affected device.
Cisco has released free software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are available.

Solution

Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20090923-ios-fw.

Plugin Details

Severity: High

ID: 49043

File Name: cisco-sa-20090923-ios-fwhttp.nasl

Version: 1.19

Type: local

Family: CISCO

Published: 9/1/2010

Updated: 11/15/2018

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

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/23/2009

Vulnerability Publication Date: 9/23/2009

Reference Information

CVE: CVE-2009-2867

BID: 36492

CISCO-SA: cisco-sa-20090923-ios-fw

CISCO-BUG-ID: CSCsr18691

Detections

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