Cisco IOS Software Zone-Based Policy Firewall 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 :

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.

See also :

http://www.nessus.org/u?a2e84522
http://www.nessus.org/u?77b0b7bc

Solution :

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

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: 49043 (cisco-sa-20090923-ios-fwhttp.nasl)

Bugtraq ID: 36492

CVE ID: CVE-2009-2867