CVE-2020-7346 Explained : Impact and Mitigation

A Privilege Escalation vulnerability in McAfee Data Loss Prevention (DLP) for Windows prior to version 11.6.100 allows attackers to load DLLs of their choice by exploiting junctions.

Understanding CVE-2020-7346

This CVE involves a Privilege Escalation vulnerability in McAfee Data Loss Prevention (DLP) for Windows.

What is CVE-2020-7346?

This vulnerability allows a local, low-privileged attacker to manipulate junctions to load DLLs of their choosing, potentially leading to privilege escalation.

The Impact of CVE-2020-7346

CVSS Base Score: 7.8 (High)
Attack Vector: Local
Confidentiality, Integrity, and Availability Impact: High
Privileges Required: Low

Technical Details of CVE-2020-7346

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

Vulnerability Description

The vulnerability in McAfee DLP for Windows allows attackers to load DLLs by exploiting junctions, potentially leading to privilege escalation.

Affected Systems and Versions

Affected Product: McAfee Data Loss Prevention (DLP) Endpoint for Windows
Affected Versions: Prior to 11.6.100
Platforms: Windows

Exploitation Mechanism

Attackers can exploit this vulnerability by creating and removing junctions, along with sending a specific IOTL command at the right time.

Mitigation and Prevention

Protecting systems from CVE-2020-7346 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update McAfee DLP to version 11.6.100 or higher to mitigate the vulnerability.
Monitor for any suspicious activities related to DLL loading.

Long-Term Security Practices

Implement the principle of least privilege to restrict unnecessary access.
Regularly audit and review file system permissions to prevent unauthorized DLL loading.

Patching and Updates

Apply security patches and updates provided by McAfee to address this vulnerability.