#VU31319 Information disclosure in MediaWiki - CVE-2017-0361

Vulnerability identifier: #VU31319

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-0361

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MediaWiki
Web applications / CMS

Vendor: MediaWiki.org

Description

The vulnerability allows a local authenticated user to execute arbitrary code.

Mediawiki before 1.28.1 / 1.27.2 / 1.23.16 contains an information disclosure flaw, where the api.log might contain passwords in plaintext.

Mitigation
Install update from vendor's website.

Vulnerable software versions

MediaWiki: 1.28.0

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External links
https://www.securitytracker.com/id/1039812
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-April/000207.html
https://phabricator.wikimedia.org/T125177
https://security-tracker.debian.org/tracker/CVE-2017-0361

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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