CVE-2022-21122 : Vulnerability Insights and Analysis

This article provides details about CVE-2022-21122, a vulnerability in the 'metacalc' package before version 0.0.2 that allows for Arbitrary Code Execution when exposing JavaScript's Math class to the v8 context.

Understanding CVE-2022-21122

This section delves into the nature of the CVE-2022-21122 vulnerability and its potential impact.

What is CVE-2022-21122?

The package 'metacalc' before version 0.0.2 is vulnerable to Arbitrary Code Execution, enabling unauthorized access to JavaScript's Function constructor by exposing the Math class to the v8 context.

The Impact of CVE-2022-21122

The vulnerability poses a critical threat with a base severity score of 9, allowing attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability.

Technical Details of CVE-2022-21122

Explore the technical aspects of CVE-2022-21122 to better understand the affected systems and potential exploitation.

Vulnerability Description

The vulnerability arises from exposing JavaScript's Math class to the user-land, granting access to the Function constructor.

Affected Systems and Versions

The 'metacalc' package versions less than 0.0.2 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability remotely over a network without requiring any privileged access, highlighting the high attack complexity.

Mitigation and Prevention

Learn about the steps to mitigate and prevent exploitation of CVE-2022-21122 to enhance system security.

Immediate Steps to Take

Users should update the 'metacalc' package to version 0.0.2 or above to patch the vulnerability and prevent arbitrary code execution.

Long-Term Security Practices

Regularly monitor for security updates and follow secure coding practices to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security patches and updates released by the 'metacalc' package maintainers to protect against known vulnerabilities.