CVE-2018-6661 Explained : Impact and Mitigation

McAfee True Key versions before 4.20.110 on Microsoft Windows Client operating systems are affected by a DLL Side-Loading vulnerability that allows local users to elevate their privileges.

Understanding CVE-2018-6661

This CVE involves a security flaw in McAfee True Key software that could be exploited by attackers to gain elevated privileges on the system.

What is CVE-2018-6661?

The vulnerability in McAfee True Key versions before 4.20.110 allows local users to escalate their privileges by taking advantage of a specific DLL file signature verification oversight.

The Impact of CVE-2018-6661

CVSS Base Score: 7.5 (High)
Attack Vector: Local
Attack Complexity: High
Privileges Required: Low
User Interaction: Required
Scope: Changed
Confidentiality, Integrity, and Availability Impact: High

Technical Details of CVE-2018-6661

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The DLL Side-Loading vulnerability in McAfee True Key before version 4.20.110 on Microsoft Windows Client systems enables local users to elevate their privileges by exploiting the lack of verification of a specific DLL file signature.

Affected Systems and Versions

Product: True Key
Vendor: McAfee
Affected Version: < 4.20.110

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating a specific DLL file to execute arbitrary code and gain elevated privileges on the system.

Mitigation and Prevention

To safeguard systems from CVE-2018-6661, follow these mitigation strategies:

Immediate Steps to Take

Update McAfee True Key to version 4.20.110 or higher to eliminate the vulnerability.
Monitor system logs for any suspicious activities indicating DLL side-loading attempts.

Long-Term Security Practices

Implement the principle of least privilege to restrict user permissions.
Regularly educate users on safe computing practices to prevent unauthorized system changes.

Patching and Updates

Stay informed about security updates from McAfee and apply patches promptly to address known vulnerabilities.