CVE-2022-23621 Explained : Impact and Mitigation

A detailed analysis of the CVE-2022-23621 vulnerability affecting xwiki-platform.

Understanding CVE-2022-23621

This section provides insights into the vulnerability found in xwiki-platform.

What is CVE-2022-23621?

CVE-2022-23621 is a security vulnerability in xwiki-platform that allows any user with SCRIPT right to read sensitive files through XWiki#invokeServletAndReturnAsString.

The Impact of CVE-2022-23621

The vulnerability has a CVSS base score of 5.5 (Medium Severity) with high availability impact, but low confidentiality and integrity impact. It requires high privileges for exploitation.

Technical Details of CVE-2022-23621

A deeper look into the technical aspects of the CVE-2022-23621 vulnerability.

Vulnerability Description

In affected versions of xwiki-platform, unauthorized users can access files within the XWiki WAR using a specific method, posing a risk to data confidentiality.

Affected Systems and Versions

Users of xwiki-platform versions >= 13.6.0 and < 13.7-rc-1, >= 13.0.0 and < 13.4.3, as well as < 12.10.9 are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability leverages the SCRIPT right in xwiki-platform, enabling users to read various sensitive files.

Mitigation and Prevention

Best practices and steps to mitigate the risks associated with CVE-2022-23621.

Immediate Steps to Take

Users are strongly advised to update to patched versions 12.10.9, 13.4.3, or 13.7-rc-1. Alternatively, limiting the SCRIPT right can provide a temporary workaround.

Long-Term Security Practices

Implement robust access control mechanisms and regularly update xwiki-platform to prevent similar security vulnerabilities.

Patching and Updates

Stay informed about security advisories and promptly apply patches released by the xwiki community.