CVE-2011-4361
MEDIUM severity · CVSS 5 · CWE-276
5CVSS MEDIUM
Summary
MediaWiki before 1.17.1 does not check for read permission before handling action=ajax requests, which allows remote attackers to obtain sensitive information by (1) leveraging the SpecialUpload::ajaxGetExistsWarning function, or by (2) leveraging an extension, as demonstrated by the CategoryTree, ExtTab, and InlineEditor extensions.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)3%
AV:N/AC:L/Au:N/C:P/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.html ↗
Additional information
- NVD record
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.htmlPatch
- https://bugzilla.wikimedia.org/show_bug.cgi?id=32616Patch
- http://openwall.com/lists/oss-security/2011/11/29/12Advisory
- http://openwall.com/lists/oss-security/2011/11/29/6Advisory
- http://www.debian.org/security/2011/dsa-2366Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=758171Advisory