PT-2023-22166 · Mediawiki+1 · Mediawiki Checkuser Extension+1

Amandanp · CVE-2023-29139 · Published 2023-03-31 · Updated 2024-08-20

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MediaWiki CheckUser extension versions through 1.39.3

Description An issue in the CheckUser extension for MediaWiki can cause denial of service when a user with checkuserlog permissions makes many CheckUserLog API requests in certain configurations, resulting in a RequestTimeoutException or upstream request timeout.

Recommendations For versions through 1.39.3, consider restricting access to the CheckUserLog API endpoint to minimize the risk of denial of service attacks until a patch is available. As a temporary workaround, limiting the number of CheckUserLog API requests from users with checkuserlog permissions may also help mitigate the issue.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

ALT-PU-2023-4877

ALT-PU-2024-11168

ALT-PU-2024-1228

BIT-MEDIAWIKI-2023-29139

CVE-2023-29139

Affected Products

Alt Linux

Mediawiki Checkuser Extension

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29139.json · Exploit
• 🔥 https://phabricator.wikimedia.org/T326293 · Exploit
• https://osv.dev/vulnerability/BIT-mediawiki-2023-29139 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-29139 · Security Note
• https://osv.dev/vulnerability/CVE-2023-29139 · Vendor Advisory
• https://t.me/cvenotify/47272 · Telegram Post
• https://t.me/cvenotify/47949 · Telegram Post
• https://t.me/cibsecurity/61277 · Telegram Post