CVE-2020-8203 : Security Advisory and Response

A detailed overview of CVE-2020-8203, a vulnerability related to lodash affecting versions before 4.17.20.

Understanding CVE-2020-8203

This CVE involves a prototype pollution attack when utilizing _.zipObjectDeep in lodash before version 4.17.20.

What is CVE-2020-8203?

Prototype pollution attack occurs in lodash versions prior to 4.17.20 when using _.zipObjectDeep, potentially leading to security vulnerabilities.

The Impact of CVE-2020-8203

This vulnerability could allow attackers to manipulate the prototype of objects, leading to potential security breaches and unauthorized access.

Technical Details of CVE-2020-8203

A closer look at the technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from a flaw in lodash versions before 4.17.20, specifically when employing the _.zipObjectDeep function.

Affected Systems and Versions

Product: lodash
Vendor: n/a
Versions Affected: Not Fixed

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating object prototypes using the _.zipObjectDeep function in vulnerable lodash versions.

Mitigation and Prevention

Measures to address and prevent the CVE-2020-8203 vulnerability.

Immediate Steps to Take

Update lodash to version 4.17.20 or newer to mitigate the vulnerability.
Regularly monitor for security advisories and patches related to lodash.

Long-Term Security Practices

Implement secure coding practices to prevent prototype pollution attacks.
Conduct regular security audits and code reviews to identify and address vulnerabilities.

Patching and Updates

Apply patches and updates provided by lodash to address security issues and enhance the overall security posture of the application.