Vulnerability identifier: #VU62012
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
MediaWiki
Web applications /
CMS
Vendor: MediaWiki.org
Description
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the CentralAuth extension mishandles a ttl issue for groups expiring in the future, which leads to security restrictions bypass and privilege escalation.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
MediaWiki: 1.35 - 1.35.5, 1.36.0 - 1.36.3, 1.37.0 - 1.37.1
External links
http://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/5CPEV6TDFBFMTX45AAIZXLPRSQS5NK57/
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.