[ GLSA 200908-09 ] DokuWiki: Local file inclusion

[Alex Legler <a3li () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200908-09
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                                            http://security.gentoo.org/
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  Severity: High
     Title: DokuWiki: Local file inclusion
      Date: August 18, 2009
      Bugs: #272431
        ID: 200908-09

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Synopsis
========

An input sanitation error in DokuWiki might lead to the dislosure of
local files or even the remote execution of arbitrary code.

Background
==========

DokuWiki is a standards compliant Wiki system written in PHP.

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

    -------------------------------------------------------------------
     Package            /    Vulnerable    /                Unaffected
    -------------------------------------------------------------------
  1  www-apps/dokuwiki      < 2009-02-14b               >= 2009-02-14b

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

girex reported that data from the "config_cascade" parameter in
inc/init.php is not properly sanitized before being used.

Impact
======

A remote attacker could exploit this vulnerability to execute PHP code
from arbitrary local, or, when the used PHP version supports ftp://
URLs, also from remote files via FTP. Furthermore, it is possible to
disclose the contents of local files. NOTE: Successful exploitation
requires the PHP option "register_globals" to be enabled.

Workaround
==========

Disable "register_globals" in php.ini.

Resolution
==========

All DokuWiki users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose =www-apps/dokuwiki-2009-02-14b

References
==========

  [ 1 ] CVE-2009-1960
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1960

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

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

  http://security.gentoo.org/glsa/glsa-200908-09.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
https://bugs.gentoo.org.

License
=======

Copyright 2009 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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