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TikiWiki: Arbitrary command execution



TikiWiki: Arbitrary command execution
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@gentoo.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 

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