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Date: Tue, 25 Oct 2011 19:15:34 +0200
From: Alex Legler <a3li@...too.org>
To: gentoo-announce@...ts.gentoo.org
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk,
  security-alerts@...uxsecurity.com
Subject: [ GLSA 201110-23 ] Apache mod_authnz_external: SQL injection

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Gentoo Linux Security Advisory                           GLSA 201110-23
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                                            http://security.gentoo.org/
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 Severity: Low
    Title: Apache mod_authnz_external: SQL injection
     Date: October 25, 2011
     Bugs: #386165
       ID: 201110-23

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Synopsis
========

An input sanitation flaw in mod_authnz_external allows remote attacker
to conduct SQL injection.

Background
==========

mod_authnz_external is a tool for creating custom authentication
backends for HTTP basic authentication.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  www-apache/mod_authnz_external
                                  < 3.2.6                    >= 3.2.6 

Description
===========

mysql/mysql-auth.pl in mod_authnz_external does not properly sanitize
input before using it in an SQL query.

Impact
======

A remote attacker could exploit this vulnerability to inject arbitrary
SQL statements by using a specially crafted username for HTTP
authentication on a site using mod_authnz_external.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Apache mod_authnz_external users should upgrade to the latest
version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=www-apache/mod_authnz_external-3.2.6"

References
==========

[ 1 ] CVE-2011-2688
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2688

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 http://security.gentoo.org/glsa/glsa-201110-23.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@...too.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2011 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

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