Bug 1903761 (CVE-2020-25827)

Summary: CVE-2020-25827 mediawiki: using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG 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: 2020-12-07 17:02:48 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: 1903762    
Bug Blocks: 1903781    

Description Dhananjay Arunesh 2020-12-02 18:24:14 UTC 
An issue was discovered in the OATHAuth extension in MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4. For Wikis using OATHAuth on a farm/cluster (such as via CentralAuth), rate limiting of OATH tokens is only done on a single site level. Thus, multiple requests can be made across many wikis/sites concurrently.

References:
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html
https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html
https://phabricator.wikimedia.org/T251661
Comment 1 Dhananjay Arunesh 2020-12-02 18:24:58 UTC 
Created mediawiki tracking bugs for this issue:

Affects: fedora-all [bug 1903762]
Comment 2 Przemyslaw Roguski 2020-12-07 15:24:57 UTC 
This vulnerability is related to the factoryNonLocal function, which was introduced in version 1.31.9.
OpenShift Container Platform delivers mediawiki-1.27.7-1, where the vulnerable code doesn't exist.
Comment 4 Przemyslaw Roguski 2020-12-07 15:25:04 UTC 
External References:

https://phabricator.wikimedia.org/T251661
Comment 5 Przemyslaw Roguski 2020-12-07 16:51:28 UTC 
Statement:

OpenShift Container Platform (OCP) delivers the mediawiki package, but the vulnerable code is not bundled, therefore OCP is not affected by this flaw.
Comment 6 Product Security DevOps Team 2020-12-07 17:02:48 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-25827