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Cisco IOS Software IPS and Zone-Based Firewall Vulnerabilities - Cisco Systems

high Nessus Plugin ID 56321

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Synopsis

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

Description

Cisco IOS Software contains two vulnerabilities related to Cisco IOS Intrusion Prevention System (IPS) and Cisco IOS Zone-Based Firewall features. These vulnerabilities are :

 - Memory leak

 - Denial of service caused by processing specially crafted HTTP packets

Cisco has released free software updates that address these vulnerabilities. Workarounds that mitigate these vulnerabilities are not available.

Solution

Apply the relevant patch referenced in Cisco Security Advisory cisco-sa-20110928-zbfw.

See Also

http://www.nessus.org/u?adac0917

http://www.nessus.org/u?e4f83d3b

Plugin Details

Severity: High

ID: 56321

File Name: cisco-sa-20110928-zbfwhttp.nasl

Version: 1.19

Type: local

Family: CISCO

Published: 9/29/2011

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: 9/29/2011

Vulnerability Publication Date: 9/29/2011

Reference Information

CVE: CVE-2011-3273, CVE-2011-3281

BID: 49826