Apache HTTP Server mod_proxy Reverse Proxy HTTP 0.9 Information Disclosure

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The web server running on the remote host has an information
disclosure vulnerability.

Description :

The version of Apache HTTP Server running on the remote host has an
information disclosure vulnerability. When configured as a reverse
proxy, improper use of the RewriteRule and ProxyPassMatch directives
could cause the web server to proxy requests to arbitrary hosts. This
could allow a remote attacker to indirectly send requests to intranet
servers by making specially crafted HTTP 0.9 requests.

This vulnerability only affects versions 2.2.x before 2.2.18 that have
backported the fix for CVE-2011-3368.

See also :

https://bugzilla.novell.com/show_bug.cgi?id=722545#c15
http://article.gmane.org/gmane.comp.apache.devel/45983
http://svn.apache.org/viewvc?view=revision&revision=1188745

Solution :

Contact the distro/vendor for the latest update of Apache httpd.

Risk factor :

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

Family: Web Servers

Nessus Plugin ID: 57875 ()

Bugtraq ID: 51869

CVE ID: CVE-2011-3639