Bug 1903764 (CVE-2020-25813)

Summary: CVE-2020-25813 mediawiki: Special:UserRights exposes the existence of hidden users
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aos-bugs, axel.thimm, bmontgom, eparis, jburrell, jokerman, mike, nstielau, puiterwijk, shurley, sponnaga
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: mediawiki-1.34.4, mediawiki-1.31.10 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-28 08:35:43 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1903765, 1905140    
Bug Blocks: 1903781    

Description Dhananjay Arunesh 2020-12-02 18:25:59 UTC 
In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, Special:UserRights exposes the existence of hidden users.

References:
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
https://meta.wikimedia.org/wiki/Special:UserRights
Comment 1 Dhananjay Arunesh 2020-12-02 18:26:39 UTC 
Created mediawiki tracking bugs for this issue:

Affects: fedora-all [bug 1903765]
Comment 2 Przemyslaw Roguski 2020-12-07 16:06:05 UTC 
Upstream commit:
https://gerrit.wikimedia.org/r/c/mediawiki/core/+/609532
Comment 3 Przemyslaw Roguski 2020-12-07 16:06:07 UTC 
Statement:

The mediawiki package was removed from OpenShift Container Platform in version 4.3.
Comment 4 Przemyslaw Roguski 2020-12-07 16:06:09 UTC 
External References:

https://phabricator.wikimedia.org/T232568