CVE-2021-36043 : Security Advisory and Response

Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier), and 2.3.7 (and earlier) are affected by a blind SSRF vulnerability in the bundled dotmailer extension. An attacker with admin privileges could abuse this to achieve remote code execution if Redis is enabled.

Understanding CVE-2021-36043

This vulnerability impacts Magento Commerce, specifically versions 2.4.2, 2.4.2-p1, and 2.3.7, allowing for a blind SSRF attack that could lead to remote code execution.

What is CVE-2021-36043?

CVE-2021-36043 is a blind SSRF vulnerability found in Magento Commerce versions 2.4.2, 2.4.2-p1, and 2.3.7. It can be exploited by an attacker with admin privileges to execute remote code if Redis is enabled.

The Impact of CVE-2021-36043

The vulnerability has a CVSS base score of 8.0, indicating a high severity level. An attacker can achieve remote code execution, posing a significant threat to affected systems.

Technical Details of CVE-2021-36043

This section provides more technical insights into the vulnerability.

Vulnerability Description

The blind SSRF vulnerability in Magento Commerce allows attackers with admin privileges to potentially execute remote code if Redis is enabled on affected versions.

Affected Systems and Versions

Magento Commerce versions 2.4.2, 2.4.2-p1, and 2.3.7 are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

Attackers can abuse this SSRF vulnerability to manipulate requests and potentially execute malicious code remotely.

Mitigation and Prevention

Protecting systems from CVE-2021-36043 requires immediate action and long-term security practices.

Immediate Steps to Take

It is recommended to apply patches or updates released by Adobe for Magento Commerce immediately to mitigate the risk of exploitation.

Long-Term Security Practices

Enhance security measures, monitor network traffic for suspicious activity, and restrict admin privileges to prevent unauthorized access.

Patching and Updates

Regularly check for security updates and patches provided by Adobe for Magento Commerce to address vulnerabilities and enhance system security.