Cisco ASA SIP CPU Utilization DoS

This script is Copyright (C) 2012-2013 Tenable Network Security, Inc.


Synopsis :

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

Description :

The remote Cisco ASA is missing a security patch and may be affected
by a denial of service vulnerability. When SIP inspection is enabled
and SIP traffic does not establish the secondary connection, duplicate
pre-allocated secondary pinholes are created, which could cause CPU
utilization to increase. A remote, unauthenticated attacker could
exploit this to cause a denial of service.

See also :

http://www.nessus.org/u?8bc857b4

Solution :

Apply the relevant patch referenced in the bug details for CSCtz63143.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: CISCO

Nessus Plugin ID: 61514 ()

Bugtraq ID: 54836

CVE ID: CVE-2012-2472