XWiki Platform cleanup

Summaryinfo

A vulnerability, which was classified as critical, has been found in XWiki Platform. The impacted element is an unknown function. This manipulation causes cleanup. This vulnerability appears as CVE-2023-36468. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in XWiki Platform (Content Management System) (affected version unknown). Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a cleanup vulnerability. The CWE definition for the vulnerability is CWE-459. The product does not properly "clean up" and remove temporary or supporting resources after they have been used. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. When an XWiki installation is upgraded and that upgrade contains a fix for a bug in a document, just a new version of that document is added. In some cases, it's still possible to exploit the vulnerability that was fixed in the new version. The severity of this depends on the fixed vulnerability, for the purpose of this advisory take CVE-2022-36100/GHSA-2g5c-228j-p52x as example - it is easily exploitable with just view rights and critical. When XWiki is upgraded from a version before the fix for it (e.g., 14.3) to a version including the fix (e.g., 14.4), the vulnerability can still be reproduced by adding `rev=1.1` to the URL used in the reproduction steps so remote code execution is possible even after upgrading. Therefore, this affects the confidentiality, integrity and availability of the whole XWiki installation. This vulnerability also affects manually added script macros that contained security vulnerabilities that were later fixed by changing the script macro without deleting the versions with the security vulnerability from the history. This vulnerability doesn't affect freshly installed versions of XWiki. Further, this vulnerability doesn't affect content that is only loaded from the current version of a document like the code of wiki macros or UI extensions. This vulnerability has been patched in XWiki 14.10.7 and 15.2RC1 by forcing old revisions to be executed in a restricted mode that disables all script macros. As a workaround, admins can manually delete old revisions of affected documents. A script could be used to identify all installed documents and delete the history for them. However, also manually added and later corrected code may be affected by this vulnerability so it is easy to miss documents.

The weakness was presented 06/30/2023 as GHSA-2g5c-228j-p52x. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-36468 since 06/21/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability. Applying the patch 15a6f845d8206b0ae97f37aa092ca43d4f9d6e59 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Content Management System

Vendor

• XWiki

Name

• Platform

License

• open-source

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CPE 2.2info

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