"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

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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