CVE-2021-21013 : Security Advisory and Response

Magento Commerce versions 2.4.1, 2.4.0-p1, and 2.3.6 are affected by an insecure direct object vulnerability in the customer API module leading to sensitive information disclosure.

Understanding CVE-2021-21013

This CVE pertains to a vulnerability in the Magento Commerce platform that could be exploited to access sensitive information and manipulate user account data.

What is CVE-2021-21013?

The vulnerability in Magento Commerce versions 2.4.1, 2.4.0-p1, and 2.3.6 allows unauthorized users to disclose sensitive information and modify arbitrary data on other user accounts through the customer API module.

The Impact of CVE-2021-21013

The successful exploitation of this vulnerability could result in unauthorized access to confidential information and the manipulation of user data, posing a threat to data integrity and confidentiality.

Technical Details of CVE-2021-21013

This section provides more specific technical details of the CVE.

Vulnerability Description

The insecure direct object vulnerability (IDOR) in the customer API module of the affected Magento Commerce versions enables attackers to access and alter sensitive data, compromising user privacy and security.

Affected Systems and Versions

Magento Commerce versions 2.4.1, 2.4.0-p1, and 2.3.6 are confirmed to be affected by this vulnerability.

Exploitation Mechanism

Exploiting this vulnerability requires network access and low user privileges, making it relatively easy for attackers to execute unauthorized actions.

Mitigation and Prevention

To address and prevent potential risks associated with CVE-2021-21013, users and organizations should take the following measures.

Immediate Steps to Take

Update Magento Commerce to the latest patched version immediately.
Monitor user accounts and sensitive data for any unauthorized access or changes.

Long-Term Security Practices

Implement strong access controls and user authentication mechanisms.
Regularly monitor and audit user activities within the Magento platform.

Patching and Updates

Keep Magento Commerce up to date with the latest security patches and updates to address known vulnerabilities and enhance overall platform security.