CVE-2021-37597 : Vulnerability Insights and Analysis

WP Cerber before 8.9.3 allows MFA bypass via wordpress_logged_in_[hash] manipulation.

Understanding CVE-2021-37597

This CVE identifies a vulnerability in WP Cerber before version 8.9.3 that enables attackers to bypass multi-factor authentication (MFA) through manipulation of wordpress_logged_in_[hash].

What is CVE-2021-37597?

The vulnerability in WP Cerber before version 8.9.3 allows malicious actors to bypass multi-factor authentication by exploiting a specific manipulation technique related to wordpress_logged_in_[hash].

The Impact of CVE-2021-37597

The exploitation of this vulnerability can lead to unauthorized access to sensitive information or resources protected by MFA, compromising the security and integrity of the affected systems.

Technical Details of CVE-2021-37597

This section details the specific technical aspects of CVE-2021-37597.

Vulnerability Description

The vulnerability in WP Cerber before 8.9.3 enables an attacker to bypass multi-factor authentication by manipulating the wordpress_logged_in_[hash] parameter.

Affected Systems and Versions

WP Cerber versions before 8.9.3 are confirmed to be affected by this vulnerability. Users of earlier versions are advised to update to the latest version to mitigate this security risk.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the wordpress_logged_in_[hash] parameter, allowing them to bypass multi-factor authentication controls and gain unauthorized access.

Mitigation and Prevention

Protecting systems from CVE-2021-37597 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update WP Cerber to version 8.9.3 or later to patch the vulnerability and prevent MFA bypass.
Monitor system logs and user activities for any signs of unauthorized access.

Long-Term Security Practices

Implement strong password policies and encourage the use of complex, unique passwords.
Regularly update and patch software to address known security vulnerabilities.

Patching and Updates

Regularly check for updates and security patches for WP Cerber to ensure that known vulnerabilities are addressed promptly.