Squid < 2.7.STABLE6 / 3.0.STABLE13 / 3.1.0.5 HTTP Version Number Request Remote DoS

This script is Copyright (C) 2009-2014 Tenable Network Security, Inc.


Synopsis :

The remote proxy server is susceptible to a denial of service attack.

Description :

The version of the Squid proxy caching server installed on the remote
host may abort when parsing requests with an invalid HTTP version. A
remote attacker may be able to leverage this issue to crash the
application, thereby denying service to legitimate users.

Note that successful exploitation of this issue requires that Squid
was not built with the 'NODEBUG' define.

See also :

http://www.squid-cache.org/Advisories/SQUID-2009_1.txt
http://www.securityfocus.com/archive/1/500653/30/0/threaded

Solution :

Either apply the appropriate patches referenced in the project's
advisory above or upgrade to Squid version 2.7.STABLE6 / 3.0.STABLE13
/ 3.1.0.5 or later.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Firewalls

Nessus Plugin ID: 35620 ()

Bugtraq ID: 33604

CVE ID: CVE-2009-0478