CVE-2023-0221 Explained : Impact and Mitigation

This CVE record, assigned by trellix, describes a product security bypass vulnerability in Trellix's Application and Change Control (ACC) software before version 8.3.4, allowing locally logged-in attackers with administrator privileges to bypass execution controls using the utilman program.

Understanding CVE-2023-0221

This section provides an insight into the nature of CVE-2023-0221, its impacts, technical details, and mitigation strategies.

What is CVE-2023-0221?

CVE-2023-0221 refers to a product security bypass vulnerability in Trellix's ACC software that affects versions prior to 8.3.4. This vulnerability enables locally logged-in attackers with administrator privileges to circumvent execution controls by utilizing the utilman program.

The Impact of CVE-2023-0221

The impact of CVE-2023-0221 is classified under CAPEC-180, which entails exploiting incorrectly configured access control security levels. This vulnerability has a CVSSv3.1 base score of 4.4, with a medium severity rating and a high availability impact.

Technical Details of CVE-2023-0221

Delving deeper into the technical aspects of CVE-2023-0221 helps in understanding the vulnerability's description, affected systems and versions, as well as its exploitation mechanism.

Vulnerability Description

The vulnerability in ACC software allows attackers to bypass execution controls by leveraging the utilman program, granting them unauthorized access with potentially severe consequences.

Affected Systems and Versions

Trellix's ACC software versions before 8.3.4 are susceptible to this security bypass vulnerability, impacting systems running on the Windows platform.

Exploitation Mechanism

Local attackers with administrator privileges can exploit this vulnerability to evade execution controls, posing a significant threat to system integrity and security.

Mitigation and Prevention

Mitigating CVE-2023-0221 involves taking immediate steps, adopting long-term security practices, and ensuring timely patching and updates to safeguard systems against potential exploits.

Immediate Steps to Take

System administrators are advised to upgrade Trellix's ACC software to version 8.3.4 or newer to mitigate the security bypass vulnerability. Restricting access rights and monitoring privileged accounts can also help prevent unauthorized exploitation.

Long-Term Security Practices

Implementing robust access control policies, conducting security assessments, and enhancing user privilege management are integral to fortifying system security in the long term and preventing similar vulnerabilities.

Patching and Updates

Regularly applying software patches, staying informed on security advisories, and maintaining a proactive approach to updating system components can effectively mitigate vulnerabilities like CVE-2023-0221 and enhance overall cybersecurity posture.