Vulnerability Details : CVE-2015-8624
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.
Vulnerability category: Cross-site request forgery (CSRF)
Products affected by CVE-2015-8624
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.24.0:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.24.1:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.25.1:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.25.0:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.24.2:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.24.3:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.25.2:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.26.0:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.24.4:*:*:*:*:*:*:*
- cpe:2.3:a:mediawiki:mediawiki:1.25.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-8624
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-8624
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2015-8624
-
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-8624
-
http://www.openwall.com/lists/oss-security/2015/12/21/8
oss-security - CVE requests for MediaWiki 1.26.1, 1.25.4, 1.24.5 and 1.23.12Mailing List;Patch;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2015/12/23/7
oss-security - Re: CVE requests for MediaWiki 1.26.1, 1.25.4, 1.24.5 and 1.23.12Mailing List;Patch;Third Party Advisory
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https://phabricator.wikimedia.org/T119309
⚓ T119309 User::matchEditToken should use constant-time string comparisonPatch;Third Party Advisory
-
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html
[MediaWiki-announce] Security Release: 1.26.1, 1.25.4, 1.24.5 and 1.23.12Patch;Release Notes;Vendor Advisory
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