Apache HTTP Server mod_proxy Reverse Proxy Information Disclosure

This script is Copyright (C) 2011-2014 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.

See also :

http://www.nessus.org/u?7fedbcf7
https://community.qualys.com/blogs/securitylabs/tags/cve-2011-4317
http://thread.gmane.org/gmane.comp.apache.devel/46440
http://httpd.apache.org/security/vulnerabilities_22.html

Solution :

Upgrade to Apache httpd 2.2.22 or later.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 4.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Web Servers

Nessus Plugin ID: 56972 ()

Bugtraq ID: 49957
50802

CVE ID: CVE-2011-3368
CVE-2011-4317