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Gentoo Linux Security Advisory                           GLSA 200609-16
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Tikiwiki: Arbitrary command execution
      Date: September 26, 2006
      Bugs: #145714
        ID: 200609-16

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Synopsis
========

Tikiwiki contains a cross-site scripting (XSS) vulnerability as well as
a second vulnerability which may allow remote execution of arbitrary
code.

Background
==========

Tikiwiki is a web-based groupware and content management system,
developed with PHP, ADOdb and Smarty.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  www-apps/tikiwiki       < 1.9.5                          >= 1.9.5

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

A vulnerability in jhot.php allows for an unrestricted file upload to
the img/wiki/ directory. Additionally, an XSS exists in the highlight
parameter of tiki-searchindex.php.

Impact
======

An attacker could execute arbitrary code with the rights of the user
running the web server by uploading a file and executing it via a
filepath parameter. The XSS could be exploited to inject and execute
malicious script code or to steal cookie-based authentication
credentials, potentially compromising the victim's browser.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Tikiwiki users should upgrade to the latest version:

    # emerge --sync
    # emerge --oneshot --verbose --ask ">=www-apps/tikiwiki-1.9.5"

References
==========

  [ 1 ] CVE-2006-4299
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4299
  [ 2 ] CVE-2006-4602
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4602

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

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

  http://security.gentoo.org/glsa/glsa-200609-16.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 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/2.5

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