[ GLSA 200606-16 ] DokuWiki: PHP code injection

[Sune Kloppenborg Jeppesen <jaervosz () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200606-16
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                                            http://security.gentoo.org/
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  Severity: High
     Title: DokuWiki: PHP code injection
      Date: June 14, 2006
      Bugs: #135623
        ID: 200606-16

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Synopsis
========

A flaw in DokuWiki's spell checker allows for the execution of
arbitrary PHP commands, even without proper authentication.

Background
==========

DokuWiki is a simple to use wiki targeted at developer teams,
workgroups and small companies.

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

    -------------------------------------------------------------------
     Package            /    Vulnerable    /                Unaffected
    -------------------------------------------------------------------
  1  www-apps/dokuwiki      < 20060309-r1               >= 20060309-r1

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

Stefan Esser discovered that the DokuWiki spell checker fails to
properly sanitize PHP's "complex curly syntax".

Impact
======

A unauthenticated remote attacker may execute arbitrary PHP commands -
and thus possibly arbitrary system commands - with the permissions of
the user running the webserver that serves DokuWiki pages.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All DokuWiki users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/dokuwiki-20060309-r1"

References
==========

  [ 1 ] Hardened-PHP advisory
        http://www.hardened-php.net/advisory_042006.119.html
  [ 2 ] CVE-2006-2878
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2878

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

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

  http://security.gentoo.org/glsa/glsa-200606-16.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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