CVE-2022-41937 : Vulnerability Insights and Analysis

XWiki Platform is a generic wiki platform that offers runtime services for applications built on top of it. An issue has been identified where the application allows users with view access to modify any page of the wiki by importing a crafted XAR package. This vulnerability has been patched in XWiki versions 14.6RC1, 14.6, and 13.10.8. As a workaround, it is recommended to set the right of the page Filter.WebHome and ensure that only main wiki administrators can view or edit the application installed on the main wiki.

Understanding CVE-2022-41937

This section will delve into what CVE-2022-41937 is, the impact it poses, its technical details, and mitigation strategies.

What is CVE-2022-41937?

CVE-2022-41937 is a vulnerability in the XWiki Platform that allows users with view access to modify any page of the wiki by importing a crafted XAR package. This could lead to unauthorized modifications to the wiki content.

The Impact of CVE-2022-41937

The impact of this vulnerability is rated as CRITICAL, with a CVSS v3.1 base score of 9.6. It could result in high confidentiality and integrity impact, making it crucial to address promptly.

Technical Details of CVE-2022-41937

Let's explore the technical aspects of CVE-2022-41937, including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from a missing authorization control in the XWiki Platform, allowing unauthorized users to edit wiki pages by importing a specially crafted XAR package.

Affected Systems and Versions

XWiki Platform versions below 13.10.8, between 14.0.0 and 14.4.3, and between 14.5.0 and 14.6-rc-1 are affected by this vulnerability.

Exploitation Mechanism

Attackers with view access can exploit this vulnerability by importing a malicious XAR package, granting them the ability to modify wiki content without authorization.

Mitigation and Prevention

To prevent exploitation of CVE-2022-41937, immediate steps should be taken along with long-term security practices and regular patching and updates.

Immediate Steps to Take

It is advised to upgrade to patched versions of XWiki (14.6RC1, 14.6, or 13.10.8) and apply the workaround of restricting access to the page Filter.WebHome.

Long-Term Security Practices

Implement strict access controls, monitor wiki modifications, and conduct security assessments regularly to detect and prevent similar vulnerabilities.

Patching and Updates

Regularly update XWiki to the latest versions and apply security patches promptly to mitigate the risk of exploitation.