GLSA 200502-33: MediaWiki: Multiple vulnerabilities
Posted on: 02/28/2005 03:11 PM

A MediaWiki security update is available for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200502-33
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http://security.gentoo.org/
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Severity: Low
Title: MediaWiki: Multiple vulnerabilities
Date: February 28, 2005
Bugs: #80729, #82954
ID: 200502-33

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Synopsis
=======

MediaWiki is vulnerable to cross-site scripting, data manipulation and security bypass attacks.

Background
=========

MediaWiki is a collaborative editing software, used by big projects like Wikipedia.

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

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Package / Vulnerable / Unaffected
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1 www-apps/mediawiki lt; 1.3.11 gt;= 1.3.11

Description
==========

A security audit of the MediaWiki project discovered that MediaWiki is vulnerable to several cross-site scripting and cross-site request forgery attacks, and that the image deletion code does not sufficiently sanitize input parameters.

Impact
=====

By tricking a user to load a carefully crafted URL, a remote attacker could hijack sessions and authentication cookies to inject malicious script code that will be executed in a user's browser session in context of the vulnerable site, or use JavaScript submitted forms to perform restricted actions. Using the image deletion flaw, it is also possible for authenticated administrators to delete arbitrary files via directory traversal.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All MediaWiki users should upgrade to the latest available version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=www-apps/mediawiki-1.3.11"

References
=========

[ 1 ] Secunia Advisory SA14125
http://secunia.com/advisories/14125/
[ 2 ] CAN-2005-0534
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0534
[ 3 ] CAN-2005-0535
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0535
[ 4 ] CAN-2005-0536
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0536

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

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

http://security.gentoo.org/glsa/glsa-200502-33.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 2005 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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