Cisco IOS IPS Denial of Service Vulnerability - Cisco Systems

This script is (C) 2010-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

The Cisco IOS Intrusion Prevention System (IPS) feature contains a
vulnerability in the processing of certain IPS signatures that use the
SERVICE.DNS engine. This vulnerability may cause a router to crash or
hang, resulting in a denial of service condition.

Cisco has released free software updates that address this
vulnerability. There is a workaround for this vulnerability.

Note: This vulnerability is not related in any way to CVE-2008-1447 -
Cache poisoning attacks.

See also :

http://www.nessus.org/u?e3db2f8c
http://www.nessus.org/u?5e8514e9

Solution :

Apply the relevant patch referenced in Cisco Security Advisory
cisco-sa-20080924-iosips.

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: 49019 (cisco-sa-20080924-iosipshttp.nasl)

Bugtraq ID: 31364

CVE ID: CVE-2008-2739