MediaWiki 1.18.4/1.19.1 GlobalBlocking Extension access control

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

A vulnerability was found in MediaWiki 1.18.4/1.19.1 (Content Management System). It has been classified as problematic. This affects some unknown functionality of the component GlobalBlocking Extension. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality. The summary by CVE is:

MediaWiki before 1.18.5, and 1.19.x before 1.19.2 allows remote attackers to bypass GlobalBlocking extension IP address blocking and create an account via unspecified vectors.

The weakness was shared 08/31/2012 by Tim Starling (Fomafix) with MediaWiki as Bug 39824 as not defined posting (Bugzilla). It is possible to read the advisory at bugzilla.wikimedia.org. The vendor cooperated in the coordination of the public release. This vulnerability is uniquely identified as CVE-2012-4380 since 08/21/2012. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. MediaWiki did not prevent account creation for IP addresses blocked with GlobalBlocking.

The vulnerability scanner Nessus provides a plugin with the ID 61765 (FreeBSD : mediawiki -- multiple vulnerabilities (7c0fecd6-f42f-11e1-b17b-000c2977ec30)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks.

Upgrading to version 1.18.5 or 1.19.2 eliminates this vulnerability. The upgrade is hosted for download at download.wikimedia.org. Applying the patch Patch for 1.18 branch 11043 is able to eliminate this problem. The bugfix is ready for download at bugzilla.wikimedia.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. This was fixed in the attached patch by having the MediaWiki core perform permissions checks which are hooked by GlobalBlocking. The patch will be released as part of MediaWiki 1.19.2 and 1.18.5.

The vulnerability is also documented in the vulnerability database at Tenable (61765). Further details are available at openwall.com. The entries 6086, 6088, 6097 and 6098 are related to this item.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 61765
Nessus Name: FreeBSD : mediawiki -- multiple vulnerabilities (7c0fecd6-f42f-11e1-b17b-000c2977ec30)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 71871
OpenVAS Name: FreeBSD Ports: mediawiki
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: MediaWiki 1.18.5/1.19.2
Patch: Patch for 1.18 branch 11043

Timelineinfo

08/21/2012 🔍
08/31/2012 +10 days 🔍
08/31/2012 +0 days 🔍
08/31/2012 +0 days 🔍
08/31/2012 +0 days 🔍
08/31/2012 +0 days 🔍
08/31/2012 +0 days 🔍
09/01/2012 +0 days 🔍
09/09/2012 +8 days 🔍
10/03/2012 +24 days 🔍
10/19/2017 +1842 days 🔍
04/12/2021 +1271 days 🔍

Sourcesinfo

Product: mediawiki.org

Advisory: Bug 39824
Researcher: Tim Starling (Fomafix)
Organization: MediaWiki
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-4380 (🔍)
Vulnerability Center: 36329 - MediaWiki Failure Preventing Account Creation for Blocked IP Addresses Security Bypass Vulnerability, Medium
SecurityFocus: 55370 - MediaWiki Multiple Remote Vulnerabilities
Secunia: 50477 - MediaWiki Multiple Vulnerabilities, Moderately Critical
OSVDB: 85105

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/09/2012 18:54
Updated: 04/12/2021 07:17
Changes: 09/09/2012 18:54 (85), 04/17/2017 11:45 (5), 04/12/2021 07:10 (13), 04/12/2021 07:17 (1)
Complete: 🔍

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