ModSecurity < 2.7.4 forceRequestBodyVariable Action Handling DoS

This script is Copyright (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

The remote web application firewall may be affected by a denial of
service vulnerability.

Description :

According to its banner, the version of ModSecurity installed on the
remote host is earlier than 2.7.4. It is, therefore, potentially
affected by a denial of service vulnerability. An error exists related
to handling the action 'forceRequestBodyVariable' that could allow an
HTTP request to cause a NULL pointer to be dereferenced and an
application crash.

Note that Nessus did not actually test for this issue, but instead has
relied on the version in the server's banner.

See also :

http://seclists.org/oss-sec/2013/q2/420

Solution :

Upgrade to ModSecurity version 2.7.4 or later.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.8
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Firewalls

Nessus Plugin ID: 67128 ()

Bugtraq ID: 60182

CVE ID: CVE-2013-2765