CVE-2022-23619 : Exploit Details and Defense Strategies

XWiki Platform is a generic wiki platform that offers runtime services for applications built on top of it. The vulnerability in affected versions allows guessing if a user has an account on the wiki through the 'Forgot your password' form, even in closed wikis. This issue has been addressed in XWiki versions 12.10.9, 13.4.1, and 13.6RC1. Users are strongly advised to update to prevent exposure of sensitive information. No workarounds are currently known for this vulnerability.

Understanding CVE-2022-23619

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

What is CVE-2022-23619?

CVE-2022-23619 refers to a vulnerability in XWiki Platform where it becomes possible to ascertain whether a user has an account on the wiki using the 'Forgot your password' form, even in situations where the wiki is closed to guest users.

The Impact of CVE-2022-23619

The vulnerability poses a medium severity risk with a CVSS base score of 5.3, allowing exposure of sensitive information to unauthorized actors. It carries a low confidentiality impact and requires no special privileges for exploitation. The attack complexity is low, affecting the network with no integrity impact and no availability impact.

Technical Details of CVE-2022-23619

This section delves into the technical aspects of CVE-2022-23619.

Vulnerability Description

The vulnerability in xwiki-platform versions >= 13.6.0, < 13.6RC1, >= 13.0.0, < 13.4.1, and < 12.10.9 allows malicious actors to guess user account existence through the 'Forgot your password' form.

Affected Systems and Versions

XWiki versions 13.6.0 to 13.6RC1, 13.0.0 to 13.4.1, and versions below 12.10.9 are affected by this information exposure vulnerability.

Exploitation Mechanism

The vulnerability can be exploited over the network without requiring user interaction and has no impact on system integrity or availability.

Mitigation and Prevention

This section outlines steps to mitigate and prevent exploitation of CVE-2022-23619.

Immediate Steps to Take

Users are strongly recommended to update their XWiki Platform to the patched versions 12.10.9, 13.4.1, or 13.6RC1 to address this vulnerability and prevent unauthorized access to sensitive information.

Long-Term Security Practices

Ensure timely updates of XWiki Platform to the latest secure versions and consider implementing additional security measures to protect sensitive data.

Patching and Updates

Regularly check for security advisories and patches released by XWiki to stay protected against known vulnerabilities.