CVE-2022-21213 : Security Advisory and Response

This article provides an overview of CVE-2022-21213, a vulnerability related to Prototype Pollution in the 'mout' package.

Understanding CVE-2022-21213

This CVE impacts all versions of the 'mout' package, allowing exploitation through the deepFillIn and deepMixIn functions.

What is CVE-2022-21213?

CVE-2022-21213 involves a vulnerability in the 'mout' package where key access to the target object is not verified, leading to a risk of exploitation.

The Impact of CVE-2022-21213

The vulnerability has a CVSS v3.1 base score of 7.5, making it a high-severity issue with a potential high availability impact.

Technical Details of CVE-2022-21213

The following technical details outline the vulnerability specifics:

Vulnerability Description

The deepFillIn function recursively fills in missing properties, while deepMixIn mixes objects into the target object, allowing for recursive mixing of child objects.

Affected Systems and Versions

All versions of the 'mout' package are affected by this vulnerability.

Exploitation Mechanism

The vulnerability stems from unchecked key access to the target object, providing an opportunity for exploitation.

Mitigation and Prevention

To address CVE-2022-21213, consider the following mitigation and prevention strategies:

Immediate Steps to Take

Developers should update to a patched version of the 'mout' package as soon as possible to mitigate the risk.

Long-Term Security Practices

Implement secure coding practices and regularly update dependencies to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security updates and patches for the 'mout' package to address known vulnerabilities.