CVE-2011-1766

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.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.30%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060496.html vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=702512 patch
https://bugzilla.wikimedia.org/show_bug.cgi?id=28639 patch
http://secunia.com/advisories/44684 third party advisory
http://www.securityfocus.com/bid/47722 vdb entry
http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-May/000098.html patch mailing list
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060435.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060507.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-1766?
CVE-2011-1766 has been scored as a medium severity vulnerability.
How to fix CVE-2011-1766?
To fix CVE-2011-1766, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1766 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-1766 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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