Cisco IOS Software Internet Key Exchange Resource Exhaustion 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 for Internet Key Exchange (IKE)
protocol and certificate based authentication are vulnerable to a
resource exhaustion attack. Successful exploitation of this
vulnerability may result in the allocation of all available Phase 1
security associations (SA) and prevent the establishment of new IPsec
sessions.
Cisco has released free software updates that address this
vulnerability.

See also :

http://www.nessus.org/u?b05ed3b2
http://www.nessus.org/u?c3f5a376

Solution :

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

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: 49044 (cisco-sa-20090923-ipsechttp.nasl)

Bugtraq ID: 36497

CVE ID: CVE-2009-2868