SB2011052402 - Improper Authentication in MediaWiki
Published: May 24, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011052402
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Authentication (CVE-ID: CVE-2011-1766)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
includes/User.php in MediaWiki before 1.16.5, when wgBlockDisablesLogin is enabled, does not clear certain cached data after verification of an auth token fails, which allows remote attackers to bypass authentication by creating crafted wikiUserID and wikiUserName cookies, or by leveraging an unattended workstation.
Remediation
Install update from vendor's website.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060435.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060496.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060507.html
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-May/000098.html
- http://secunia.com/advisories/44684
- http://www.securityfocus.com/bid/47722
- https://bugzilla.redhat.com/show_bug.cgi?id=702512
- https://bugzilla.wikimedia.org/show_bug.cgi?id=28639