CVE-2012-4379: CSRF
A cross-site request forgery flaw was found in the way MediaWiki, a wiki engine, protected CSRF tokens available via the API when X-Frame-Options headers were used. Previously it was possible for a remote attacker to obtain them and possibly perform CSRF attacks.
References: [1] http://www.gossamer-threads.com/lists/wiki/mediawiki/295767
Upstream bug: [2] https://bugzilla.wikimedia.org/showbug.cgi?id=39180
Relevant upstream patch: [3] https://gerrit.wikimedia.org/r/#/c/20472/
Other sources
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not send a restrictive X-Frame-Options HTTP header, which allows remote attackers to conduct clickjacking attacks via an embedded API response in an IFRAME element.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2012-4379?
CVE-2012-4379 is classified as a medium-severity vulnerability due to its potential for clickjacking attacks.
How do I fix CVE-2012-4379?
To fix CVE-2012-4379, update to MediaWiki version 1.18.5, 1.19.2, or later.
What systems are affected by CVE-2012-4379?
CVE-2012-4379 affects MediaWiki versions prior to 1.18.5 and 1.19.x versions before 1.19.2.
What is a clickjacking attack in relation to CVE-2012-4379?
In the context of CVE-2012-4379, a clickjacking attack allows remote attackers to trick users into clicking on hidden elements in an embedded IFRAME.
Is it safe to use MediaWiki versions older than 1.18.5 or 1.19.2 due to CVE-2012-4379?
Using MediaWiki versions older than 1.18.5 or 1.19.2 is not safe due to the risk of clickjacking attacks associated with CVE-2012-4379.