[Full-disclosure] [ GLSA 200604-02 ] Horde Application Framework: Remote code execution

[Stefan Cornelius]

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Gentoo Linux Security Advisory                           GLSA 200604-02
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Horde Application Framework: Remote code execution
      Date: April 04, 2006
      Bugs: #127889, #126435
        ID: 200604-02

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Synopsis
========

The help viewer of the Horde Framework allows attackers to execute
arbitrary remote code.

Background
==========

The Horde Application Framework is a general-purpose web application
framework written in PHP, providing classes for handling preferences,
compression, browser detection, connection tracking, MIME and more.

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

    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  www-apps/horde       < 3.1.1                             >= 3.1.1

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

Jan Schneider of the Horde team discovered a vulnerability in the help
viewer of the Horde Application Framework that could allow remote code
execution (CVE-2006-1491). Paul Craig reported that "services/go.php"
fails to validate the passed URL parameter correctly (CVE-2006-1260).

Impact
======

An attacker could exploit the vulnerability in the help viewer to
execute arbitrary code with the privileges of the web server user. By
embedding a NULL character in the URL parameter, an attacker could
exploit the input validation issue in go.php to read arbitrary files.

Workaround
==========

There are no known workarounds at this time.

Resolution
==========

All Horde Application Framework users should upgrade to the latest
version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/horde-3.1.1"

References
==========

  [ 1 ] CVE-2006-1260
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1260
  [ 2 ] CVE-2006-1491
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1491
  [ 3 ] Horde Announcement
        http://lists.horde.org/archives/announce/2006/000271.html

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

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

  http://security.gentoo.org/glsa/glsa-200604-02.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 at gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 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/2.0
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