CVE-2020-6021 Explained : Impact and Mitigation

Check Point Endpoint Security Client for Windows before version E84.20 allows unauthorized write access to the installation repair directory, enabling attackers to execute malicious code with elevated privileges.

Understanding CVE-2020-6021

This CVE identifies a vulnerability in Check Point Endpoint Security Client for Windows that could lead to privilege escalation attacks.

What is CVE-2020-6021?

The vulnerability in Check Point Endpoint Security Client for Windows before version E84.20 allows an attacker to place a specially crafted DLL in the repair folder during an installation repair, granting the attacker the ability to run code with the client's privileges.

The Impact of CVE-2020-6021

Exploitation of this vulnerability could result in unauthorized access to sensitive information, execution of arbitrary code, and potential compromise of the affected system's security.

Technical Details of CVE-2020-6021

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability (CWE-427: Uncontrolled Search Path Element) allows attackers to manipulate the repair process to execute malicious code with elevated privileges.

Affected Systems and Versions

Product: Check Point Endpoint Security Client for Windows
Versions Affected: Before version E84.20

Exploitation Mechanism

Attackers can initiate the installation repair process and place a specially crafted DLL in the repair folder to execute code with elevated privileges.

Mitigation and Prevention

Protecting systems from CVE-2020-6021 requires immediate action and long-term security practices.

Immediate Steps to Take

Update Check Point Endpoint Security Client to version E84.20 or later to mitigate the vulnerability.
Monitor for any unauthorized changes to the repair directory.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access and permissions.
Regularly review and update security configurations to prevent similar vulnerabilities.

Patching and Updates

Apply security patches and updates provided by Check Point to address known vulnerabilities and enhance system security.