CVE-2022-47406 Explained : Impact and Mitigation

An issue was discovered in the fe_change_pwd (aka Change password for frontend users) extension before 2.0.5, and 3.x before 3.0.3, for TYPO3. The extension fails to revoke existing sessions for the current user when the password has been changed.

Understanding CVE-2022-47406

This CVE highlights a vulnerability in the fe_change_pwd extension of TYPO3 that affects user sessions when changing passwords.

What is CVE-2022-47406?

CVE-2022-47406 is a security issue in TYPO3's fe_change_pwd extension versions before 2.0.5 and 3.x before 3.0.3. It allows an attacker to retain access to a user account even after the password has been changed.

The Impact of CVE-2022-47406

The impact of this vulnerability is rated as MEDIUM. An attacker with low privileges can maintain unauthorized access to a user account, potentially leading to data confidentiality and integrity risks.

Technical Details of CVE-2022-47406

The following details provide a deeper understanding of the technical aspects of CVE-2022-47406.

Vulnerability Description

The vulnerability arises from the fe_change_pwd extension's failure to invalidate existing sessions upon a user changing their password, allowing an attacker to maintain access.

Affected Systems and Versions

All versions of the fe_change_pwd extension before 2.0.5 and 3.x before 3.0.3 for TYPO3 are affected by this security issue.

Exploitation Mechanism

An attacker can exploit this vulnerability by changing a user's password and still retaining access to the user account due to the extension's failure to revoke existing sessions.

Mitigation and Prevention

Protecting your systems from CVE-2022-47406 involves immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade the fe_change_pwd extension to version 2.0.5 or 3.0.3 to mitigate the vulnerability.
Encourage users to log out and log back in after changing their passwords.

Long-Term Security Practices

Regularly update and patch TYPO3 extensions to stay protected against known vulnerabilities.
Implement multi-factor authentication to enhance user account security.

Patching and Updates

Stay informed about security advisories and apply patches promptly to address any newly discovered vulnerabilities.