CVE-2022-21167 : Vulnerability Insights and Analysis

A detailed analysis of the Arbitrary Code Execution vulnerability in Masuit.Tools.Core package through the SocketClient.cs component.

Understanding CVE-2022-21167

This CVE involves a vulnerability that allows for Arbitrary Code Execution in the Masuit.Tools.Core package, impacting the SocketClient.cs component.

What is CVE-2022-21167?

All versions of the masuit.tools.core package are vulnerable to Arbitrary Code Execution via the ReceiveVarData<T> function in the SocketClient.cs component, due to inadequate restrictions or type bindings for the BinaryFormatter.

The Impact of CVE-2022-21167

The vulnerability poses a HIGH severity risk with a CVSS base score of 7.5. An attacker can exploit this flaw to execute arbitrary code on affected systems, leading to confidentiality, integrity, and availability breaches.

Technical Details of CVE-2022-21167

Below are the technical details related to this CVE.

Vulnerability Description

The vulnerability allows for Arbitrary Code Execution by passing malicious payloads through user-controllable inputs to the SocketClient.cs component.

Affected Systems and Versions

The vulnerability affects all versions of the Masuit.Tools.Core package.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the lack of proper restrictions or type bindings for the BinaryFormatter, enabling the execution of arbitrary code.

Mitigation and Prevention

To protect systems from CVE-2022-21167, consider the following mitigation strategies.

Immediate Steps to Take

Update Masuit.Tools.Core package to a fixed version that addresses the Arbitrary Code Execution vulnerability.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Implement input validation to sanitize user-controllable inputs.
Apply the principle of least privilege to limit the impact of potential attacks.

Patching and Updates

Regularly check for security updates and patches released by the vendor to address known vulnerabilities in the Masuit.Tools.Core package.