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

This script is (C) 2011-2014 Tenable Network Security, Inc.


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.

See also :

http://www.nessus.org/u?e333cc98
http://www.nessus.org/u?26586489

Solution :

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

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.4
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: CISCO

Nessus Plugin ID: 56321 ()

Bugtraq ID: 49826

CVE ID: CVE-2011-3273
CVE-2011-3281