CVE-2021-23561 Explained : Impact and Mitigation

A detailed overview of CVE-2021-23561 focusing on the Prototype Pollution vulnerability in the 'comb' package.

Understanding CVE-2021-23561

This CVE highlights a vulnerability in the 'comb' package that can be exploited through the deepMerge() function.

What is CVE-2021-23561?

All versions of the 'comb' package are susceptible to Prototype Pollution due to issues in the deepMerge() function, making them vulnerable to attacks.

The Impact of CVE-2021-23561

With a CVSS v3.1 base score of 6.5, this CVE poses a medium severity threat. The attack complexity is low, and the integrity impact is low, affecting systems with the 'comb' package.

Technical Details of CVE-2021-23561

Exploring the specifics of the vulnerability in the 'comb' package.

Vulnerability Description

The vulnerability arises from the deepMerge() function in all versions of the 'comb' package, leading to potential Prototype Pollution attacks.

Affected Systems and Versions

All versions of the 'comb' package are impacted by this vulnerability, with no specific version mentioned in the CVE details.

Exploitation Mechanism

Attackers can exploit this vulnerability via the deepMerge() function to carry out Prototype Pollution attacks on systems with the 'comb' package installed.

Mitigation and Prevention

Guidelines to mitigate the risks associated with CVE-2021-23561 and prevent potential security breaches.

Immediate Steps to Take

Users are advised to update the 'comb' package to a secure version and review any code utilizing the deepMerge() function for vulnerabilities.

Long-Term Security Practices

Implement secure coding practices, perform regular security audits, and stay informed about security updates related to the 'comb' package.

Patching and Updates

Stay informed about patches released by the 'comb' package maintainers to address the Prototype Pollution vulnerability and promptly apply updates.