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UNIRAS Brief - 556/05 - Gentoo - MediaWiki: Cross-site scripting vulnerability



 
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   UNIRAS (UK Govt CERT) Briefing Notice - 556/05 dated 20.07.05  Time: 10:15  
  UNIRAS is part of NISCC (National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Title
=====
Gentoo - MediaWiki: Cross-site scripting vulnerability

Detail
====== 


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Gentoo Linux Security Advisory                           GLSA 200507-18
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                                            http://security.gentoo.org/
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  Severity: Low
     Title: MediaWiki: Cross-site scripting vulnerability
      Date: July 20, 2005
      Bugs: #99132
        ID: 200507-18

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Synopsis
========

MediaWiki is vulnerable to a cross-site scripting attack that could
allow arbitrary JavaScript code execution.

Background
==========

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

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  www-apps/mediawiki       < 1.4.7                         >= 1.4.7

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

MediaWiki fails to escape a parameter in the page move template
correctly.

Impact
======

By enticing a user to visit a specially crafted URL, a remote attacker
could exploit this vulnerability to inject malicious JavaScript code
that will be executed in a user's browser session in the context of the
vulnerable site.

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 ">=www-apps/mediawiki-1.4.7"

References
==========

  [ 1 ] MediaWiki 1.4.7 Release Notes
        http://sourceforge.net/project/shownotes.php?release_id=342530

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

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

  http://security.gentoo.org/glsa/glsa-200507-18.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@xxxxxxxxxx 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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For additional information or assistance, please contact the HELP Desk by 
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Tel: +44 (0) 870 487 0748 and follow the prompts

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UNIRAS wishes to acknowledge the contributions of Gentoo for the information 
contained in this Briefing. 
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This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
affects you, it may be prudent to retrieve the advisory from the canonical site 
to ensure that you receive the most current information concerning that problem.

Reference to any specific commercial product, process, or service by trade 
name, trademark manufacturer, or otherwise, does not constitute or imply 
its endorsement, recommendation, or favouring by UNIRAS or NISCC.  The views 
and opinions of authors expressed within this notice shall not be used for 
advertising or product endorsement purposes.

Neither UNIRAS or NISCC shall also accept responsibility for any errors 
or omissions contained within this briefing notice. In particular, they shall 
not be liable for any loss or damage whatsoever, arising from or in connection 
with the usage of information contained within this notice.

UNIRAS is a member of the Forum of Incident Response and Security Teams (FIRST) 
and has contacts with other international Incident Response Teams (IRTs) in 
order to foster cooperation and coordination in incident prevention, to prompt 
rapid reaction to incidents, and to promote information sharing amongst its 
members and the community at large. 
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<End of UNIRAS Briefing>

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