MediaWiki up to 1.31.7/1.33.3/1.34.1 Private Wiki img_auth.php information disclosure

Summaryinfo

A vulnerability described as critical has been identified in MediaWiki up to 1.31.7/1.33.3/1.34.1. This impacts an unknown function of the file img_auth.php of the component Private Wiki Handler. Such manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2020-15005. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MediaWiki up to 1.31.7/1.33.3/1.34.1 (Content Management System). Affected by this issue is an unknown code block of the file img_auth.php of the component Private Wiki Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In MediaWiki before 1.31.8, 1.32.x and 1.33.x before 1.33.4, and 1.34.x before 1.34.2, private wikis behind a caching server using the img_auth.php image authorization security feature may have had their files cached publicly, so any unauthorized user could view them.

The weakness was disclosed 06/24/2020 (Website). The advisory is shared for download at gerrit.wikimedia.org. This vulnerability is handled as CVE-2020-15005 since 06/24/2020. The exploitation is known to be easy. The attack may be launched remotely. The requirement for exploitation is a simple authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

By approaching the search of inurl:img_auth.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.31.8, 1.33.4 or 1.34.2 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Name

• MediaWiki

Version

• 1.31.0
• 1.31.1
• 1.31.2
• 1.31.3
• 1.31.4
• 1.31.5
• 1.31.6
• 1.31.7
• 1.33.0
• 1.33.1
• 1.33.2
• 1.33.3
• 1.34.0
• 1.34.1

License

• open-source

Website

• Product: https://www.mediawiki.org/wiki/MediaWiki

CPE 2.3info

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CPE 2.2info

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