GLSA 200502-33: MediaWiki: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	low
Title:	MediaWiki: Multiple vulnerabilities
Date:	02/28/2005
Bugs:	#80729, #82954
ID:	200502-33

Synopsis

MediaWiki is vulnerable to cross-site scripting, data manipulation and security bypass attacks.

Background

MediaWiki is a collaborative editing software, used by big projects like Wikipedia.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-apps/mediawiki	< 1.3.11	>= 1.3.11	All supported architectures

Description

A security audit of the MediaWiki project discovered that MediaWiki is vulnerable to several cross-site scripting and cross-site request forgery attacks, and that the image deletion code does not sufficiently sanitize input parameters.

Impact

By tricking a user to load a carefully crafted URL, a remote attacker could hijack sessions and authentication cookies to inject malicious script code that will be executed in a user's browser session in context of the vulnerable site, or use JavaScript submitted forms to perform restricted actions. Using the image deletion flaw, it is also possible for authenticated administrators to delete arbitrary files via directory traversal.

Workaround

There is no known workaround at this time.

Resolution

All MediaWiki users should upgrade to the latest available version:

    # emerge --sync 
    # emerge --ask --oneshot --verbose ">=www-apps/mediawiki-1.3.11"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200502-33.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.