CVE-2018-3751 Explained : Impact and Mitigation

In all versions up until 0.3.0 of the merge-recursive node module, a vulnerability exists in the utilities function that allows an attacker to manipulate the prototype of Object, enabling them to add new properties or modify existing ones across all objects.

Understanding CVE-2018-3751

This CVE was published on May 24, 2018, and affects the merge-recursive node module.

What is CVE-2018-3751?

The vulnerability in the utilities function of the merge-recursive node module allows an attacker to control part of the structure passed to the function, leading to unauthorized modifications of the Object prototype.

The Impact of CVE-2018-3751

Exploitation of this vulnerability can result in unauthorized changes to object properties, potentially leading to security breaches or data manipulation.

Technical Details of CVE-2018-3751

The technical details of this CVE are as follows:

Vulnerability Description

The utilities function in versions <= 0.3.0 of the merge-recursive node module can be manipulated to modify the Object prototype, enabling unauthorized property additions or modifications.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: <= 0.3.0

Exploitation Mechanism

The attacker needs control over a portion of the structure passed to the utilities function to exploit this vulnerability.

Mitigation and Prevention

To address CVE-2018-3751, consider the following steps:

Immediate Steps to Take

Update the merge-recursive node module to version 0.3.1 or higher to mitigate the vulnerability.
Implement input validation to prevent unauthorized manipulation of function parameters.

Long-Term Security Practices

Regularly monitor for updates and security advisories related to the merge-recursive module.
Conduct security audits to identify and address potential vulnerabilities in your codebase.

Patching and Updates

Stay informed about security patches and updates released by the merge-recursive module maintainers.
Apply patches promptly to ensure your systems are protected against known vulnerabilities.