CVE-2014-2243 Information

Description

includes/User.php in MediaWiki before 1.19.12 1.20.x and 1.21.x before 1.21.6 and 1.22.x before 1.22.3 terminates validation of a user token upon encountering the first incorrect character which makes it easier for remote attackers to obtain access via a brute-force attack that relies on timing differences in responses to incorrect token guesses.

Reference

http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-February/000141.html http://openwall.com/lists/oss-security/2014/02/28/1 http://openwall.com/lists/oss-security/2014/03/01/2 https://bugzilla.redhat.com/show_bug.cgi?id=1071136 https://bugzilla.wikimedia.org/show_bug.cgi?id=61346 https://gerrit.wikimedia.org/r//q/I2a9e89120f7092015495e638c6fa9f67adc9b84fnz