Bug 853440 (CVE-2012-4380)

Summary: CVE-2012-4380 mediawiki: Did not prevent account creation for IP addresses blocked with GlobalBlocking
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: axel.thimm, extras-orphan
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: mediawiki 1.19.2, mediawiki 1.18.5 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-19 21:56:36 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 853446, 853447    
Bug Blocks:    

Description Jan Lieskovsky 2012-08-31 14:04:25 UTC
A security flaw was found in the way MediaWiki, a wiki engine, performed account creation capability validation for certain IP addresses (IP addresses blocked with GlobalBlocking extension were incorrectly still allowed to create new user accounts). A remote attacker could use this flaw to circumvent the GlobalBlocking account creation prevention mechanism.

[1] http://www.gossamer-threads.com/lists/wiki/mediawiki/295767

Upstream bug:
[2] https://bugzilla.wikimedia.org/show_bug.cgi?id=39824

Upstream patch against the 1.18 version:
[3] https://bugzilla.wikimedia.org/show_bug.cgi?id=39824#c0

Comment 1 Jan Lieskovsky 2012-08-31 14:05:06 UTC
This issue affects the versions of the mediawiki package, as shipped with Fedora release of 16 and 17. Please schedule an update.


This issue affects the version of the mediawiki package, as shipped with Fedora EPEL 5. Please schedule an update.

Comment 2 Jan Lieskovsky 2012-08-31 14:37:30 UTC
CVE request:

Comment 3 Jan Lieskovsky 2012-08-31 14:40:45 UTC
Created mediawiki tracking bugs for this issue

Affects: fedora-all [bug 853446]

Comment 4 Jan Lieskovsky 2012-08-31 14:42:39 UTC
Created mediawiki tracking bugs for this issue

Affects: epel-5 [bug 853447]

Comment 5 Jan Lieskovsky 2012-09-03 08:23:37 UTC
The CVE identifier of CVE-2012-4380 has been assigned to this issue: