PT-2019-5199 · Mediawiki+1 · Mediawiki+1

Rxy · Published 2019-08-13 · Updated 2022-05-24 · CVE-2019-16738

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MediaWiki versions prior to 1.33.1

Description The issue is related to the Special:Redirect function in MediaWiki, which allows information disclosure of suppressed usernames via a User ID Lookup. This is due to a lack of protection for internal data. An attacker can exploit this to gain unauthorized access to protected information by searching for user IDs.

Recommendations For MediaWiki versions prior to 1.33.1, update to version 1.33.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the Special:Redirect function until a patch is available. Avoid using the User ID Lookup feature in the affected Special:Redirect function until the issue is resolved.

Exploit

Fix

Information Disclosure

Missing Authorization

Weakness Enumeration

CWE-200

CWE-862

Related Identifiers

ALT-PU-2019-2897

ALT-PU-2020-2249

BDU:2020-01890

CVE-2019-16738

DSA-4545-1

GHSA-7HWR-F745-5RWQ

MGASA-2019-0301

Affected Products

Alt Linux

Mediawiki

References · 44

• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-19709.yaml · Exploit
• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-10960.yaml · Exploit
• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-16738.yaml · Exploit
• 🔥 https://phabricator.wikimedia.org/T230402 · Exploit
• https://errata.altlinux.org/ALT-PU-2019-2897 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/7OMG3BMUHGWTAPYTK2NXM6CXF6FYLOUO · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-4545-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19709 · Security Note
• https://osv.dev/vulnerability/MGASA-2019-0301 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-16738 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-16738 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0301.html · Security Note
• https://security-tracker.debian.org/tracker/source-package/mediawiki · Vendor Advisory