CVE-2022-44543 : Security Advisory and Response

A vulnerability has been discovered in the femanager extension for TYPO3, allowing the creation of frontend users in restricted groups under certain conditions.

Understanding CVE-2022-44543

This section provides insights into the nature of the CVE-2022-44543 vulnerability.

What is CVE-2022-44543?

The femanager extension before 5.5.2, 6.x before 6.3.3, and 7.x before 7.0.1 for TYPO3 allows the creation of frontend users in restricted groups. This vulnerability arises due to mishandling of the usergroup.inList protection mechanism.

The Impact of CVE-2022-44543

The vulnerability in the femanager extension for TYPO3 can potentially lead to unauthorized creation of frontend users in restricted groups, posing a risk to the security and integrity of the system.

Technical Details of CVE-2022-44543

This section delves into the technical aspects of CVE-2022-44543.

Vulnerability Description

The issue allows attackers to bypass usergroup restrictions and create users in restricted groups, exploiting a flaw in the usergroup.inList protection mechanism.

Affected Systems and Versions

The femanager extension versions before 5.5.2, 6.x before 6.3.3, and 7.x before 7.0.1 for TYPO3 are susceptible to this vulnerability.

Exploitation Mechanism

By manipulating the usergroup field on the registration form, attackers can circumvent restrictions and create frontend users in restricted groups.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the CVE-2022-44543 vulnerability.

Immediate Steps to Take

Apply the latest security patches provided by TYPO3 for the femanager extension.
Review and adjust usergroup permissions to mitigate the risk of unauthorized user creation.

Long-Term Security Practices

Regularly monitor and audit user activities to detect any suspicious behavior.
Keep the femanager extension updated to prevent known vulnerabilities from being exploited.

Patching and Updates

Stay informed about security advisories from TYPO3 and promptly apply patches and updates to ensure the security of the femanager extension.