CVE-2022-23654 : Exploit Details and Defense Strategies

Wiki.js, a wiki app built on Node.js, is affected by a vulnerability that allows an authenticated user with write access to update a page outside the allowed paths. The issue arises due to incorrect path access control, enabling users to manipulate the target page ID. This CVE has a CVSS base score of 8.1 (High severity).

Understanding CVE-2022-23654

This CVE highlights an improper write access check vulnerability in Requarks/wiki.

What is CVE-2022-23654?

The flaw in Wiki.js versions prior to 2.5.276 allows authorized users to modify pages beyond their restricted paths by specifying a different page ID.

The Impact of CVE-2022-23654

The vulnerability poses a high risk of unauthorized data access, integrity compromise, and confidentiality breaches.

Technical Details of CVE-2022-23654

The following technical aspects are associated with CVE-2022-23654:

Vulnerability Description

An authenticated user can update pages outside the permitted paths by manipulating the page ID.

Affected Systems and Versions

Product: wiki Vendor: Requarks Versions Affected: < 2.5.276

Exploitation Mechanism

By specifying a different target page ID while keeping the path intact, users can bypass access control checks.

Mitigation and Prevention

To address CVE-2022-23654, users and administrators can take the following actions:

Immediate Steps to Take

Upgrade Wiki.js to version 2.5.276 or higher.
Restrict write access to trusted users only.
Regularly monitor and review access logs for suspicious activities.

Long-Term Security Practices

Implement multi-factor authentication to enhance user verification.
Conduct security training for users on access control best practices.

Patching and Updates

Stay informed about security advisories and apply patches promptly to protect your system from known vulnerabilities.