[Full-disclosure] [ GLSA 200601-12 ] Trac: Cross-site scripting vulnerability

[Stefan Cornelius]

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Gentoo Linux Security Advisory                           GLSA 200601-12
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                                            http://security.gentoo.org/
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  Severity: Low
     Title: Trac: Cross-site scripting vulnerability
      Date: January 26, 2006
      Bugs: #118302
        ID: 200601-12

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Synopsis
========

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

Background
==========

Trac is a minimalistic web-based project management, wiki and bug
tracking system including a Subversion interface.

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

    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  www-apps/trac       < 0.9.3                              >= 0.9.3

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

Christophe Truc discovered that Trac fails to properly sanitize input
passed in the URL.

Impact
======

A remote attacker could exploit this 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 Trac users should upgrade to the latest available version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/trac-0.9.3"

Note: Users with the vhosts USE flag set should manually use
webapp-config to finalize the update.

References
==========

  [ 1 ] CVE-2005-4305
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4305
  [ 2 ] Trac Changelog
        http://projects.edgewall.com/trac/wiki/ChangeLog#a0.9.3

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

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

  http://security.gentoo.org/glsa/glsa-200601-12.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 at 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/2.0
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