PT-2020-13016 · Mediawiki · Mediawiki Centralauth Extension

Dannys712 · Published 2020-04-21 · Updated 2021-07-21 · CVE-2020-12051

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions MediaWiki CentralAuth extension versions through REL1 34

Description The issue allows remote attackers to obtain sensitive hidden account information. This can be done via the "api.php?action=query&meta=globaluserinfo&guiuser=" request, which is accessible through the action API. Normally, access to this information would be denied when visiting the wiki/Special:CentralAuth page in a web browser.

Recommendations For versions through REL1 34, consider disabling access to the "api.php?action=query&meta=globaluserinfo&guiuser=" endpoint until a patch is available. Restrict access to sensitive account information to minimize the risk of exploitation.

Fix

Related Identifiers

BIT-MEDIAWIKI-2020-12051

CVE-2020-12051

Affected Products

Mediawiki Centralauth Extension

References · 5

• https://phabricator.wikimedia.org/T250594 · Vendor Advisory
• https://gerrit.wikimedia.org/r/#/q/I3c80641dc1202df7428714f0ca44717a51ff6021 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-12051 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-12051 · Security Note
• https://t.me/cvenotify/3006 · Telegram Post