GLSA 200908-09: DokuWiki: Local file inclusion

http://security.gentoo.org/

Severity:	high
Title:	DokuWiki: Local file inclusion
Date:	08/18/2009
Bugs:	#272431
ID:	200908-09

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	Architecture(s)
www-apps/dokuwiki	< 20090214b	>= 20090214b	All supported architectures

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

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.