CVE-2019-8454 : Exploit Details and Defense Strategies

A vulnerability in Check Point Endpoint Security client for Windows before version E80.96 allows a local attacker to execute malicious BAT commands by creating a hard-link connection between files.

Understanding CVE-2019-8454

This CVE involves a privilege escalation vulnerability in the Check Point Endpoint Security client for Windows.

What is CVE-2019-8454?

This CVE allows an attacker to insert BAT commands into a file written by the Check Point Endpoint Security client for Windows, leading to potential execution of malicious commands.

The Impact of CVE-2019-8454

The vulnerability enables an attacker to escalate privileges and execute unauthorized commands on the affected system.

Technical Details of CVE-2019-8454

This section provides detailed technical information about the CVE.

Vulnerability Description

An attacker can establish a hard-link connection between a file written by the Check Point Endpoint Security client for Windows and another BAT file, allowing the insertion of malicious BAT commands.

Affected Systems and Versions

Product: Check Point Endpoint Security client for Windows
Vendor: Check Point
Versions affected: Before E80.96

Exploitation Mechanism

Attacker creates a hard-link between files
Impersonates the WPAD server to insert BAT commands
Commands are executed by the user or the system

Mitigation and Prevention

Protect systems from CVE-2019-8454 with the following measures:

Immediate Steps to Take

Update Check Point Endpoint Security client to version E80.96 or later
Monitor file integrity for unauthorized changes

Long-Term Security Practices

Implement least privilege access controls
Conduct regular security training for users

Patching and Updates

Apply security patches promptly
Stay informed about security advisories from Check Point