CVE-2021-42581 Explained : Impact and Mitigation

The CVE-2021-42581 vulnerability involves prototype poisoning in the function mapObjIndexed in Ramda 0.27.0 and earlier versions, potentially allowing attackers to compromise the application's integrity or availability.

Understanding CVE-2021-42581

What is CVE-2021-42581?

Prototype poisoning in the function mapObjIndexed in Ramda 0.27.0 and earlier can lead to the compromise of the application's integrity or availability by providing a malicious object with a crafted property.

The Impact of CVE-2021-42581

The vulnerability permits attackers to compromise the integrity or availability of an application, posing a significant security risk.

Technical Details of CVE-2021-42581

Vulnerability Description

Prototype poisoning in function mapObjIndexed in Ramda 0.27.0 and earlier versions allows attackers to compromise the application's integrity or availability by supplying a crafted object with a specific property.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions: Ramda 0.27.0 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a malicious object that contains a specific property, potentially compromising the application's integrity or availability.

Mitigation and Prevention

Immediate Steps to Take

Implement input validation to prevent the insertion of malicious objects into functions.
Regularly update to the latest version of Ramda to patch known vulnerabilities.

Long-Term Security Practices

Conduct security training for developers to increase awareness of secure coding practices.
Utilize static code analysis tools to identify and mitigate similar vulnerabilities in the future.

Patching and Updates

Stay informed about security updates and patches released by Ramda and promptly apply them to address known vulnerabilities.