CVE-2022-24819 : Exploit Details and Defense Strategies

A security vulnerability, identified as CVE-2022-24819, has been discovered in XWiki Platform that allows unauthenticated users to retrieve the list of users through a specific component, exposing sensitive information. This article provides detailed insights into the nature of the vulnerability, its impact, technical details, and mitigation strategies.

Understanding CVE-2022-24819

This section delves into the specifics of the CVE-2022-24819 vulnerability in XWiki Platform.

What is CVE-2022-24819?

The vulnerability in XWiki Platform enables unauthorized users to access a list of users, even without the necessary permissions. This poses a risk of exposing private personal information to malicious actors.

The Impact of CVE-2022-24819

With a CVSS base score of 5.3 (Medium Severity), the vulnerability allows guest users to list documents related to users of the wiki, breaching confidentiality. While the availability and integrity impacts are low, immediate action is essential to prevent exploitation.

Technical Details of CVE-2022-24819

This section provides in-depth technical information regarding the CVE-2022-24819 vulnerability.

Vulnerability Description

XWiki Platform, versions prior to 4.3, are affected by this vulnerability that enables unauthenticated users to retrieve user lists. Patched versions 12.10.11, 13.4.4, and 13.9-rc-1 are available to address this issue.

Affected Systems and Versions

The vulnerability impacts XWiki Platform versions below 4.3, highlighting the importance of updating to the patched versions to mitigate the risk of unauthorized data access.

Exploitation Mechanism

Attackers can exploit the vulnerability by accessing uorgsuggest.vm, allowing them to retrieve user lists without proper authorization, which can lead to the exposure of sensitive data.

Mitigation and Prevention

This section outlines the steps to mitigate the CVE-2022-24819 vulnerability and prevent potential security breaches.

Immediate Steps to Take

Users are advised to update their XWiki Platform to the patched versions, specifically 12.10.11, 13.4.4, or 13.9-rc-1, to eliminate the risk of unauthorized user list retrieval.

Long-Term Security Practices

Implementing access controls, regular security audits, and user permission reviews can help enhance the overall security posture of XWiki Platform installations.

Patching and Updates

Staying informed about security advisories and promptly applying patches released by XWiki can ensure protection against known vulnerabilities.