CVE-2021-23397 : Vulnerability Insights and Analysis

This CVE-2021-23397 article provides insights into a vulnerability known as Prototype Pollution in package @ianwalter/merge, affecting all versions of the software. Find out about the impact, technical details, and mitigation steps below.

Understanding CVE-2021-23397

This section delves into the specifics of the CVE-2021-23397 vulnerability.

What is CVE-2021-23397?

All versions of package @ianwalter/merge are vulnerable to Prototype Pollution via the main (merge) function. Maintainer suggests using @generates/merger instead.

The Impact of CVE-2021-23397

The vulnerability has a CVSS base score of 5.6, indicating a medium severity level. It can be exploited with high attack complexity through a network vector, affecting confidentiality, integrity, and availability to some extent.

Technical Details of CVE-2021-23397

This section provides detailed technical information about CVE-2021-23397.

Vulnerability Description

The vulnerability lies in the main (merge) function of package @ianwalter/merge, allowing attackers to engage in Prototype Pollution attacks.

Affected Systems and Versions

All versions of the @ianwalter/merge package are affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited remotely with no privileges required, making it a significant security concern.

Mitigation and Prevention

Learn about the steps to mitigate and prevent CVE-2021-23397 in this section.

Immediate Steps to Take

Developers are advised to stop using @ianwalter/merge and instead switch to @generates/merger to avoid exploitation of the Prototype Pollution vulnerability.

Long-Term Security Practices

Incorporate secure coding practices, such as input validation and output encoding, to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly check for updates and security patches for all dependencies in your software to address known vulnerabilities.