CVE-2013-4304
HIGH severity · CVSS 7.5 · Improper authentication
7.5CVSS HIGH
Summary
The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)2%
AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html ↗
Additional information
- NVD record
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.htmlPatch
- http://osvdb.org/96910
- http://seclists.org/oss-sec/2013/q3/553
- http://secunia.com/advisories/54723
- https://exchange.xforce.ibmcloud.com/vulnerabilities/86894
- https://bugzilla.wikimedia.org/show_bug.cgi?id=52338Exploit