miraheze CreateWiki REST Endpoint Special:RequestWikiQueue wgCreateWikiGlobalWiki authorization

Summaryinfo

A vulnerability labeled as problematic has been found in miraheze CreateWiki. This affects an unknown function of the file Special:RequestWikiQueue of the component REST Endpoint. Such manipulation of the argument wgCreateWikiGlobalWiki leads to authorization. This vulnerability is listed as CVE-2024-34701. The attack may be performed from remote. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in miraheze CreateWiki (the affected version unknown). Affected by this issue is an unknown part of the file Special:RequestWikiQueue of the component REST Endpoint. The manipulation of the argument wgCreateWikiGlobalWiki with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. Impacted is integrity, and availability. CVE summarizes:

CreateWiki is Miraheze's MediaWiki extension for requesting & creating wikis. It is possible for users to be considered as the requester of a specific wiki request if their local user ID on any wiki in a wiki farm matches the local ID of the requester at the wiki where the wiki request was made. This allows them to go to that request entry's on Special:RequestWikiQueue on the wiki where their local user ID matches and take any actions that the wiki requester is allowed to take from there. Commit 02e0f298f8d35155c39aa74193cb7b867432c5b8 fixes the issue. Important note about the fix: This vulnerability has been fixed by disabling access to the REST API and special pages outside of the wiki configured as the "global wiki" in `$wgCreateWikiGlobalWiki` in a user's MediaWiki settings. As a workaround, it is possible to disable the special pages outside of one's own global wiki by doing something similar to `miraheze/mw-config` commit e5664995fbb8644f9a80b450b4326194f20f9ddc that is adapted to one's own setup. As for the REST API, before the fix, there wasn't any REST endpoint that allowed one to make writes. Regardless, it is possible to also disable it outside of the global wiki by using `$wgCreateWikiDisableRESTAPI` and `$wgConf` in the configuration for one's own wiki farm..

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2024-34701 since 05/07/2024. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Applying the patch 02e0f298f8d35155c39aa74193cb7b867432c5b8 is able to eliminate this problem.

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Productinfo

Type

• Content Management System

Vendor

• miraheze

Name

• CreateWiki

Website

• Product: https://github.com/miraheze/CreateWiki/

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