CVE-2019-7871 Explained : Impact and Mitigation

Magento 2 versions 2.1 up to 2.1.18, 2.2 up to 2.2.9, and 2.3 up to 2.3.2 are affected by a security vulnerability that allows for arbitrary PHP code execution.

Understanding CVE-2019-7871

What is CVE-2019-7871?

A security loophole in Magento versions 2.1 to 2.1.18, 2.2 to 2.2.9, and 2.3 to 2.3.2 enables the execution of arbitrary PHP code, potentially exploited by authenticated users to bypass security measures.

The Impact of CVE-2019-7871

This vulnerability permits the injection of form data to run unauthorized PHP scripts, posing a risk of executing malicious code on affected systems.

Technical Details of CVE-2019-7871

Vulnerability Description

The flaw in Magento allows authenticated users to circumvent security controls, facilitating the upload and execution of arbitrary PHP code.

Affected Systems and Versions

Magento 2.1 prior to 2.1.18
Magento 2.2 prior to 2.2.9
Magento 2.3 prior to 2.3.2

Exploitation Mechanism

The vulnerability is exploited by injecting form data to bypass security measures, enabling the execution of unauthorized PHP scripts.

Mitigation and Prevention

Immediate Steps to Take

Apply the security update provided by Magento to patch the vulnerability.
Monitor system logs for any suspicious activities related to PHP script execution.

Long-Term Security Practices

Regularly update Magento and other software to mitigate potential security risks.
Implement strict access controls to prevent unauthorized users from uploading PHP scripts.

Patching and Updates

Install the security update released by Magento to address the vulnerability and enhance system security.