Auth bypass in MediaWiki
CVE-2011-1766
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.022 (82.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- MediaWiki — versions 1.1.0, 1.2.0, 1.2.1
Weakness classification (CWE)
References
- lists.fedoraproject.org/pipermail/package-announce/2011-May/060496.html (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch)
- bugzilla.wikimedia.org/show_bug.cgi (Patch)
- secunia.com/advisories/44684 (third-party-advisory)
- www.securityfocus.com/bid/47722 (vdb-entry)
- lists.wikimedia.org/pipermail/mediawiki-announce/2011-May/000098.html (mailing-list, Patch)
- lists.fedoraproject.org/pipermail/package-announce/2011-May/060435.html (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2011-May/060507.html (vendor-advisory)