CVE-2019-7876 Explained : Impact and Mitigation

Magento versions 2.1 before 2.1.18, 2.2 before 2.2.9, and 2.3 before 2.3.2 contain a vulnerability that allows remote code execution by manipulating layouts.

Understanding CVE-2019-7876

Magento 2 versions 2.1.18, 2.2.9, and 2.3.2 are affected by a remote code execution vulnerability.

What is CVE-2019-7876?

This CVE identifies a vulnerability in Magento 2 versions 2.1.18, 2.2.9, and 2.3.2 that permits remote code execution when an authorized user can modify layouts to inject malicious code.

The Impact of CVE-2019-7876

The vulnerability allows an attacker to execute remote code on the affected Magento instances, potentially leading to unauthorized access, data theft, and further compromise of the system.

Technical Details of CVE-2019-7876

Magento 2 versions 2.1.18, 2.2.9, and 2.3.2 are susceptible to remote code execution due to layout manipulation.

Vulnerability Description

An authenticated user with layout manipulation privileges can insert harmful payloads into the layout, enabling remote code execution.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability is exploited by an authorized user who can modify layouts, allowing them to inject malicious payloads into the layout, leading to remote code execution.

Mitigation and Prevention

Immediate action and long-term security practices are crucial to mitigate the risks posed by CVE-2019-7876.

Immediate Steps to Take

Apply the security patch provided by Magento to fix the vulnerability.
Restrict user privileges to prevent unauthorized layout modifications.
Monitor for any suspicious activities on the Magento platform.

Long-Term Security Practices

Regularly update Magento to the latest version to address security vulnerabilities.
Conduct security audits to identify and remediate potential weaknesses in the system.

Patching and Updates

Install the security update released by Magento for versions 2.1.18, 2.2.9, and 2.3.2 to patch the remote code execution vulnerability.