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Multiple security vulnerabilties in MediaWiki extensions

 

 

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tstarling at wikimedia

Jun 14, 2008, 3:25 AM

Post #1 of 2 (124 views)
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Multiple security vulnerabilties in MediaWiki extensions

The following extensions had cross-site scripting (XSS) vulnerabilities:
* geo
* MetavidWiki
* wikihiero

These vulnerabilities are exploitable even if the extensions are
disabled. If you have any of these extensions installed, please update
them immediately.

Many shared hosting services have the php.ini setting "register_globals"
enabled, despite the fact that it is known to be detrimental to security.

A new automated vulnerability scanner has found a large number of
security vulnerabilities in MediaWiki extensions, when register_globals
is enabled. Unless you are sure you have register_globals disabled, the
following extensions should be immediately updated:

Cross-site scripting vulnerabilities:
* Call
* ChangeAuthor
* EditOwn
* SignDocument
* TemplateLink
* WatchSubpages
* WhoIsWatching
* php/ext/MediaWiki

Arbitrary script inclusion vulnerabilities:
* CategoryIntersection
* Makebot
* PasswordReset
* regexBlock
* SemanticCalendar
* SemanticForms
* SemanticMediaWiki
* SocialProfile
* SpamRegex
* StalePages
* TodoTasks
* WhiteList
* Wikidata

All these extensions are vulnerable regardless of whether they are
enabled in LocalSettings.php. They only need to be installed, with their
installation directory accessible from the public internet.

Downloads in .tar.gz form for all these MediaWiki extensions are
available from:
http://www.mediawiki.org/wiki/Special:ExtensionDistributor

Or using a subversion client from:
http://svn.wikimedia.org/svnroot/mediawiki/trunk/extensions

-- Tim Starling

_______________________________________________
MediaWiki-l mailing list
MediaWiki-l[at]lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/mediawiki-l


mak at aifb

Jun 14, 2008, 7:44 AM

Post #2 of 2 (104 views)
Permalink
Re: [Wikitech-l] Multiple security vulnerabilties in MediaWiki extensions [In reply to]

Thanks Tim! I have now backported your fixes in the current SVN version to the
latest Semantic MediaWiki release 1.1.1. The updated release 1.1.2 can be
obtained via Sourceforge [1] or SVN [2]. Updating existing SMW 1.1*
installations can thus be done without moving to the development version, and
without any additional side effects on the running wiki.

We will take care of preventing the "register_globals" issue in all future ...

Cheers,

Markus

[1] http://sourceforge.net/project/showfiles.php?group_id=147937
[2]
http://svn.wikimedia.org/svnroot/mediawiki/tags/extensions/SemanticMediaWiki/


On Samstag, 14. Juni 2008, Tim Starling wrote:
> The following extensions had cross-site scripting (XSS) vulnerabilities:
> * geo
> * MetavidWiki
> * wikihiero
>
> These vulnerabilities are exploitable even if the extensions are
> disabled. If you have any of these extensions installed, please update
> them immediately.
>
> Many shared hosting services have the php.ini setting "register_globals"
> enabled, despite the fact that it is known to be detrimental to security.
>
> A new automated vulnerability scanner has found a large number of
> security vulnerabilities in MediaWiki extensions, when register_globals
> is enabled. Unless you are sure you have register_globals disabled, the
> following extensions should be immediately updated:
>
> Cross-site scripting vulnerabilities:
> * Call
> * ChangeAuthor
> * EditOwn
> * SignDocument
> * TemplateLink
> * WatchSubpages
> * WhoIsWatching
> * php/ext/MediaWiki
>
> Arbitrary script inclusion vulnerabilities:
> * CategoryIntersection
> * Makebot
> * PasswordReset
> * regexBlock
> * SemanticCalendar
> * SemanticForms
> * SemanticMediaWiki
> * SocialProfile
> * SpamRegex
> * StalePages
> * TodoTasks
> * WhiteList
> * Wikidata
>
> All these extensions are vulnerable regardless of whether they are
> enabled in LocalSettings.php. They only need to be installed, with their
> installation directory accessible from the public internet.
>
> Downloads in .tar.gz form for all these MediaWiki extensions are
> available from:
> http://www.mediawiki.org/wiki/Special:ExtensionDistributor
>
> Or using a subversion client from:
> http://svn.wikimedia.org/svnroot/mediawiki/trunk/extensions
>
> -- Tim Starling
>
> _______________________________________________
> Wikitech-l mailing list
> Wikitech-l[at]lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikitech-l



--
Markus Krötzsch
Institut AIFB, Universität Karlsruhe (TH), 76128 Karlsruhe
phone +49 (0)721 608 7362 fax +49 (0)721 608 5998
mak[at]aifb.uni-karlsruhe.de www http://korrekt.org
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