CVE-2022-0985 : What You Need to Know

This article provides an overview of CVE-2022-0985, a vulnerability in Moodle that could allow users to delete other users without the necessary permissions.

Understanding CVE-2022-0985

CVE-2022-0985 is a security vulnerability in Moodle versions 3.11.6, 3.10.10, and 3.9.13 that arises from insufficient capability checks, enabling users with specific capabilities to delete users without the required permissions.

What is CVE-2022-0985?

The CVE-2022-0985 vulnerability in Moodle allows users with the moodle/site:uploadusers capability to delete users without having the necessary moodle/user:delete capability.

The Impact of CVE-2022-0985

The vulnerability could lead to unauthorized users deleting accounts and potentially disrupting the system's user management process in Moodle.

Technical Details of CVE-2022-0985

Vulnerability Description

The issue arises from inadequate capability checks that grant excessive privileges to users with specific capabilities, enabling them to delete other users.

Affected Systems and Versions

Moodle versions 3.11.6, 3.10.10, and 3.9.13 are affected by this vulnerability.

Exploitation Mechanism

Attackers with the moodle/site:uploadusers capability can leverage this vulnerability to delete users without the required moodle/user:delete capability.

Mitigation and Prevention

Immediate Steps to Take

It is recommended to update Moodle to the latest patched versions to mitigate the vulnerability. Administrators should also review user permissions and limit access to sensitive capabilities.

Long-Term Security Practices

Regularly monitor Moodle security advisories and updates to stay informed about potential vulnerabilities. Conduct security audits to identify and address any permission-related issues.

Patching and Updates

Apply security patches and updates provided by Moodle promptly to address known vulnerabilities and enhance system security.