CVE-2021-25956 Explained : Impact and Mitigation

Dolibarr application versions v3.3.beta1_20121221 to v13.0.2 allow admin users to change other user's details without validating the existing "Login" name, leading to an account takeover vulnerability.

Understanding CVE-2021-25956

This CVE describes an improper user access control issue in Dolibarr application, potentially resulting in a complete account takeover.

What is CVE-2021-25956?

The vulnerability in Dolibarr application versions v3.3.beta1_20121221 to v13.0.2 allows admin users to modify user details without validating the existing "Login" name, enabling a complete account takeover.

The Impact of CVE-2021-25956

Exploiting this vulnerability could lead to an attacker taking complete control of a victim user's account, compromising confidentiality and potentially causing severe integrity damage.

Technical Details of CVE-2021-25956

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The flaw allows admin users to overwrite passwords for victim users with similar login names, enabling unauthorized access to their accounts.

Affected Systems and Versions

Dolibarr versions v3.3.beta1_20121221 to v13.0.2 are affected by this vulnerability.

Exploitation Mechanism

Admin users with high privileges can exploit this issue by changing other user's details without proper validation of the existing "Login" name.

Mitigation and Prevention

To secure systems against CVE-2021-25956, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

Users are advised to update Dolibarr to version 14.0.0 to mitigate this vulnerability effectively.

Long-Term Security Practices

Implement strict user access control mechanisms, regularly update software, and conduct security training to prevent similar vulnerabilities.

Patching and Updates

Regularly check for security patches and updates from Dolibarr to stay protected against evolving threats.