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[ GLSA 200908-09 ] DokuWiki: Local file inclusion


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Date: Tue, 18 Aug 2009 23:37:46 +0200
From: Alex Legler <a3li@gentoo.org.>
To: [email protected]
Subject: [ GLSA 200908-09 ] DokuWiki: Local file inclusion
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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
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An input sanitation error in DokuWiki might lead to the dislosure of
local files or even the remote execution of arbitrary code.

Background
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DokuWiki is a standards compliant Wiki system written in PHP.

Affected packages
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    -------------------------------------------------------------------
     Package            /    Vulnerable    /                Unaffected
    -------------------------------------------------------------------
  1  www-apps/dokuwiki      < 2009-02-14b               >=3D 2009-02-14b


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

Impact
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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
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Disable "register_globals" in php.ini.

Resolution
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All DokuWiki users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose =3Dwww-apps/dokuwiki-2009-02-14b


References
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  [ 1 ] CVE-2009-1960
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1960

Availability
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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?
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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
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
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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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