CVE-2022-0166 Explained : Impact and Mitigation

A privilege escalation vulnerability in McAfee Agent prior to version 5.7.5 allows low privilege users to execute arbitrary code with SYSTEM privileges by creating a malicious openssl.cnf file.

Understanding CVE-2022-0166

This CVE describes a privilege escalation vulnerability in McAfee Agent for Windows.

What is CVE-2022-0166?

The vulnerability in McAfee Agent allows low privilege users to potentially execute arbitrary code with SYSTEM privileges by manipulating openssl.cnf during the build process.

The Impact of CVE-2022-0166

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 7.8. It affects confidentiality, integrity, and availability, highlighting the severity of potential exploitation.

Technical Details of CVE-2022-0166

This section delves into the specifics of the vulnerability.

Vulnerability Description

McAfee Agent uses openssl.cnf to set the OPENSSLDIR variable, which can be exploited by creating subdirectories and executing malicious code with elevated privileges.

Affected Systems and Versions

McAfee Agent for Windows versions prior to 5.7.5 are affected by this privilege escalation vulnerability.

Exploitation Mechanism

By manipulating the openssl.cnf file during the build process, a low privilege user can create a pathway to execute arbitrary code with SYSTEM privileges.

Mitigation and Prevention

Learn how to protect your systems against CVE-2022-0166.

Immediate Steps to Take

Update McAfee Agent to version 5.7.5 or higher to remediate this vulnerability. Monitor for any unusual activities on the system.

Long-Term Security Practices

Enable regular security updates and patches for all software components in your environment. Implement the principle of least privilege to restrict user capabilities.

Patching and Updates

Stay vigilant for security advisories from McAfee and apply patches promptly to address any identified vulnerabilities.