CVE-2023-6119 : Exploit Details and Defense Strategies

An Improper Privilege Management vulnerability has been identified in Trellix GetSusp prior to version 5.0.0.27, allowing a local, low privilege attacker to access files that typically require higher privilege levels. This security flaw arises from GetSusp failing to adequately protect a directory it creates during execution, enabling an attacker to manipulate file handles used by GetSusp. Since GetSusp operates with elevated privileges, this exploit grants the attacker elevated permissions. The file handles involved are only opened as read-only.

Understanding CVE-2023-6119

This section delves into the details of CVE-2023-6119, discussing its nature and impact.

What is CVE-2023-6119?

CVE-2023-6119 is an Improper Privilege Management vulnerability found in Trellix GetSusp versions prior to 5.0.0.27. It allows a local attacker with low privileges to gain unauthorized access to files that demand higher levels of permissions. This security loophole originates from the inadequate protection of a certain directory created during GetSusp's execution.

The Impact of CVE-2023-6119

The impact of CVE-2023-6119, categorized under CAPEC-122 Privilege Abuse, results in a local attacker being able to exploit this vulnerability to access sensitive files beyond their authorized level of access. This could lead to potential data breaches and unauthorized information disclosure.

Technical Details of CVE-2023-6119

This section provides a deeper insight into the vulnerability, covering its description, affected systems, and how it can be exploited.

Vulnerability Description

The vulnerability in Trellix GetSusp allows a local, low privilege attacker to compromise the system's security by accessing files that should be restricted to higher privilege levels. By manipulating file handles within GetSusp, the attacker can escalate their permissions and potentially gain control over sensitive data.

Affected Systems and Versions

Trellix GetSusp versions prior to 5.0.0.27 are impacted by this vulnerability. Specifically, systems running Windows operating systems are susceptible to exploitation.

Exploitation Mechanism

The exploitation of this vulnerability involves leveraging the improper privilege management within GetSusp to gain unauthorized access to files beyond the attacker's designated privilege level. By taking control of file handles used by GetSusp, the attacker can maneuver around security protocols and elevate their permissions.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks associated with CVE-2023-6119 and prevent potential security breaches.

Immediate Steps to Take

To address CVE-2023-6119, users are advised to promptly replace their current version of GetSusp with version 5.0.0.27 or a later release. This update includes security patches that rectify the improper privilege management vulnerability.

Long-Term Security Practices

In the long term, organizations should implement robust privilege management practices, regularly update software to address security vulnerabilities, and conduct security audits to identify and address potential weaknesses proactively.

Patching and Updates

Regularly applying updates and patches to software, especially security-critical applications like GetSusp, is essential to safeguarding systems against known vulnerabilities. Ensuring that systems are running the latest version of software helps mitigate the risk of exploitation and strengthens overall security posture.