full-disclosure - [ GLSA 200710-21 ] TikiWiki: Arbitrary command execution

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Message-ID: <20071020203630.GD30643@falco.falcal.net>
Date: Sat, 20 Oct 2007 22:36:30 +0200
From: Raphael Marichez <falco@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200710-21 ] TikiWiki: Arbitrary command
	execution

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Gentoo Linux Security Advisory                           GLSA 200710-21
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                                            http://security.gentoo.org/
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  Severity: High
     Title: TikiWiki: Arbitrary command execution
      Date: October 20, 2007
      Bugs: #195503
        ID: 200710-21

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Synopsis
========

Tikiwiki contains a command injection vulnerability which may allow
remote execution of arbitrary code.

Background
==========

TikiWiki is an open source content management system written in PHP.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  www-apps/tikiwiki      < 1.9.8.1                       >= 1.9.8.1

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

ShAnKaR reported that input passed to the "f" array parameter in
tiki-graph_formula.php is not properly verified before being used to
execute PHP functions.

Impact
======

An attacker could execute arbitrary code with the rights of the user
running the web server by passing a specially crafted parameter string
to the tiki-graph_formula.php file.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All TikiWiki users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/tikiwiki-1.9.8.1"

References
==========

  [ 1 ] CVE-2007-5423
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5423

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

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

  http://security.gentoo.org/glsa/glsa-200710-21.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
http://bugs.gentoo.org.

License
=======

Copyright 2007 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

Content of type "application/pgp-signature" skipped

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