CVE-2021-39217 : Vulnerability Insights and Analysis

This CVE record involves an arbitrary command execution vulnerability in OpenMage LTS e-commerce platform through custom layout update blocks.

Understanding CVE-2021-39217

This section provides an overview of the CVE-2021-39217 vulnerability.

What is CVE-2021-39217?

CVE-2021-39217 is a vulnerability in OpenMage LTS that allows admin users to execute arbitrary commands through block methods.

The Impact of CVE-2021-39217

The vulnerability has a CVSS v3.1 base score of 7.2, indicating a high severity issue with impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2021-39217

This section delves into the technical specifics of CVE-2021-39217.

Vulnerability Description

The vulnerability stems from improper neutralization of special elements used in a command, leading to command injection.

Affected Systems and Versions

Vendor: OpenMage
Product: magento-lts
Versions Affected:
Versions < 19.4.22
Versions >= 20.0.0, < 20.0.19

Exploitation Mechanism

The vulnerability allows admin users to execute arbitrary commands via block methods in versions before 19.4.22 and 20.0.19, which have patches available.

Mitigation and Prevention

This section outlines mitigation strategies and preventive measures.

Immediate Steps to Take

Update to version 19.4.22 or later if using affected versions.
Implement least privilege access for admin users.
Monitor and restrict block method usage.

Long-Term Security Practices

Conduct regular security audits and code reviews.
Educate admin users on secure coding practices.
Implement web application firewalls.

Patching and Updates

Apply security patches released by OpenMage promptly.