CVE-2019-7930 : What You Need to Know

Magento 2 versions 2.1 prior to 2.1.18, 2.2 prior to 2.2.9, and 2.3 prior to 2.3.2 are affected by a file upload restriction bypass vulnerability that could allow an attacker to execute arbitrary code on the system.

Understanding CVE-2019-7930

This CVE describes a security issue in Magento 2 that enables an authenticated user with administrator privileges to bypass file upload restrictions, potentially leading to arbitrary code execution.

What is CVE-2019-7930?

A vulnerability in Magento 2 versions 2.1.18, 2.2.9, and 2.3.2 allows an authorized user to manipulate a configuration file, circumventing file upload restrictions and enabling the execution of malicious code.

The Impact of CVE-2019-7930

The exploitation of this vulnerability could result in unauthorized access to the system and the execution of arbitrary code, posing a significant security risk to affected Magento installations.

Technical Details of CVE-2019-7930

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Magento 2 versions 2.1 prior to 2.1.18, 2.2 prior to 2.2.9, and 2.3 prior to 2.3.2 allows an authenticated user to bypass file upload restrictions by modifying a configuration file, potentially leading to arbitrary code execution.

Affected Systems and Versions

Product: Magento 2
Versions Affected: 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

An authorized user with administrator privileges can exploit this vulnerability by altering a configuration file, removing file upload restrictions, and uploading a malicious file for execution.

Mitigation and Prevention

Protect your system from CVE-2019-7930 with the following steps:

Immediate Steps to Take

Apply the security patch provided by Magento for versions 2.1.18, 2.2.9, and 2.3.2.
Monitor file uploads and restrict access to the import feature to authorized users only.

Long-Term Security Practices

Regularly update Magento to the latest version to ensure all security patches are applied.
Implement least privilege access controls to limit the capabilities of administrator accounts.

Patching and Updates

Ensure timely installation of security patches and updates released by Magento to address vulnerabilities like CVE-2019-7930.