Wikimedia MediaWiki up to 1.27.5/1.30.1/1.31.1/1.32.1 Special:ChangeEmail Spam access control

Summaryinfo

A vulnerability labeled as critical has been found in Wikimedia MediaWiki up to 1.27.5/1.30.1/1.31.1/1.32.1. The impacted element is an unknown function of the component Special:ChangeEmail. Such manipulation leads to access control (Spam). This vulnerability is uniquely identified as CVE-2019-12467. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Wikimedia MediaWiki up to 1.27.5/1.30.1/1.31.1/1.32.1 (Content Management System). It has been rated as critical. Affected by this issue is an unknown part of the component Special:ChangeEmail. The manipulation with an unknown input leads to a access control vulnerability (Spam). Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

MediaWiki through 1.32.1 has Incorrect Access Control (issue 1 of 3). A spammer can use Special:ChangeEmail to send out spam with no rate limiting or ability to block them. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

The weakness was disclosed 07/10/2019 as not defined mailinglist post (Bugtraq). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2019-12467 since 05/30/2019. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 176919 (Debian Security Update for mediawiki (DSA 4460-1)).

Upgrading to version 1.27.6, 1.30.2, 1.31.2 or 1.32.2 eliminates this vulnerability.

The entries VDB-137671, VDB-137673, VDB-137674 and VDB-137675 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Content Management System

Vendor

• Wikimedia

Name

• MediaWiki

Version

• 1.27.0
• 1.27.1
• 1.27.2
• 1.27.3
• 1.27.4
• 1.27.5
• 1.30.0
• 1.30.1
• 1.31.0
• 1.31.1
• 1.32.0
• 1.32.1

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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