CVE-2011-1766 Auth bypass in n/a
Remote attackers can bypass authentication in MediaWiki by exploiting cached data when wgBlockDisablesLogin is enabled, allowing unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2011-1766?
CVE-2011-1766 is a medium-severity authentication bypass vulnerability in Mediawiki Mediawiki, published on 23 May 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2011-1766?
It affects 1 product.
Products include Mediawiki Mediawiki.
How do I fix CVE-2011-1766?
No fix has been published for CVE-2011-1766 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2011-1766 being exploited?
There is no known exploitation of CVE-2011-1766 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as GHSA-m9hp-7333-625v.