CVE-2019-3667 : Vulnerability Insights and Analysis
Learn about CVE-2019-3667, a DLL Search Order Hijacking vulnerability in McAfee Tech Check 3.0.0.17 and earlier versions on Microsoft Windows. Find out the impact, affected systems, and mitigation steps.
A security flaw known as the DLL Search Order Hijacking vulnerability has been discovered in McAfee Tech Check 3.0.0.17 and earlier versions of the Microsoft Windows client. This flaw allows malicious attackers to execute unauthorized code by manipulating the search order of dynamic-link libraries (DLLs) in the local folder.
Understanding CVE-2019-3667
This CVE involves a vulnerability in McAfee Tech Check that could allow attackers to execute arbitrary code on the affected system.
What is CVE-2019-3667?
The DLL Search Order Hijacking vulnerability in McAfee Tech Check 3.0.0.17 and earlier versions on Microsoft Windows allows local users to execute unauthorized code via manipulated DLL search orders.
The Impact of CVE-2019-3667
- CVSS Base Score: 6.6 (Medium Severity)
- Attack Complexity: High
- Attack Vector: Local
- Integrity Impact: High
- User Interaction: Required
- Privileges Required: Low
- Scope: Changed
- Confidentiality Impact: Low
- Availability Impact: Low
Technical Details of CVE-2019-3667
This section provides more in-depth technical information about the vulnerability.
Vulnerability Description
The vulnerability allows local users to execute arbitrary code by manipulating DLL search orders in the local folder.
Affected Systems and Versions
- Affected Product: McAfee TechCheck
- Vendor: McAfee, LLC
- Affected Versions: Prior to 3.0.0.17
Exploitation Mechanism
Attackers can exploit this vulnerability by placing malicious DLLs in the local folder, thereby manipulating the search order and executing unauthorized code.
Mitigation and Prevention
Protecting systems from CVE-2019-3667 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update McAfee Tech Check to version 3.0.0.17 or later.
- Monitor for any unauthorized DLLs in the local folder.
- Implement strict access controls to prevent unauthorized code execution.
Long-Term Security Practices
- Regularly update security software and patches.
- Conduct security training to educate users on identifying and avoiding potential threats.
Patching and Updates
- Apply patches and updates provided by McAfee to address the DLL Search Order Hijacking vulnerability.