Vulnerability Description
The User::matchEditToken function in includes/User.php in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1 does not perform token comparison in constant time before determining if a debugging message should be logged, which allows remote attackers to guess the edit token and bypass CSRF protection via a timing attack, a different vulnerability than CVE-2015-8623.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mediawiki | Mediawiki | <= 1.23.11 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2015/12/21/8Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/23/7Mailing ListPatchThird Party Advisory
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.htPatchRelease NotesVendor Advisory
- https://phabricator.wikimedia.org/T119309PatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/21/8Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/23/7Mailing ListPatchThird Party Advisory
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.htPatchRelease NotesVendor Advisory
- https://phabricator.wikimedia.org/T119309PatchThird Party Advisory
FAQ
What is CVE-2015-8624?
CVE-2015-8624 is a vulnerability with a CVSS score of 8.8 (HIGH). The User::matchEditToken function in includes/User.php in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1 does not perform token comparison in constant t...
How severe is CVE-2015-8624?
CVE-2015-8624 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-8624?
Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.