Cross-site request forgery in MediaWiki

1) Cross-site request forgery

EUVDB-ID: #VU39389

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2015-8623

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MediaWiki: 1.24.0 - 1.24.4

CPE2.3

• cpe:2.3:a:mediawiki_org:mediawiki:1.24.0:*:*:*:*:*:*:*
• cpe:2.3:a:mediawiki_org:mediawiki:1.24.1:*:*:*:*:*:*:*
• cpe:2.3:a:mediawiki_org:mediawiki:1.24.2:*:*:*:*:*:*:*
• cpe:2.3:a:mediawiki_org:mediawiki:1.24.3:*:*:*:*:*:*:*
• cpe:2.3:a:mediawiki_org:mediawiki:1.24.4:*:*:*:*:*:*:*

External links

https://www.openwall.com/lists/oss-security/2015/12/21/8
https://www.openwall.com/lists/oss-security/2015/12/23/7
https://gerrit.wikimedia.org/r/#/c/156336/5/includes/User.php
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html
https://phabricator.wikimedia.org/T119309

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.