CVE-2023-4936 Explained : Impact and Mitigation

This CVE details a privilege escalation vulnerability in Synaptics DisplayLink USB Graphics Software for Windows, allowing the possibility of sideloading a compromised DLL during installation with elevated privilege.

Understanding CVE-2023-4936

This section delves into the specifics of the CVE-2023-4936 vulnerability.

What is CVE-2023-4936?

CVE-2023-4936 is a privilege escalation vulnerability that enables the potential for sideloading a compromised DLL during the installation process at elevated privilege levels.

The Impact of CVE-2023-4936

The impact of this vulnerability lies in the ability for attackers to execute a CAPEC-184 Software Integrity Attack, compromising the integrity of the affected systems.

Technical Details of CVE-2023-4936

Examining the technical aspects of CVE-2023-4936 vulnerability.

Vulnerability Description

The vulnerability arises due to improper privilege management, allowing unauthorized entities to sideload malicious DLLs during the software installation process.

Affected Systems and Versions

Affected Platforms: Windows
Affected Product: DisplayLink USB Graphics Software for Windows
Affected Vendor: Synaptics
Affected Versions:
Version "0" with "lessThanOrEqual" 11.1 M1 (Custom Version)

Exploitation Mechanism

The exploitation occurs by manipulating the installation process of the DisplayLink USB Graphics Software for Windows, enabling the sideloading of a compromised DLL with elevated privilege access.

Mitigation and Prevention

Understanding how to mitigate the risks associated with CVE-2023-4936.

Immediate Steps to Take

Update the software to version 11.2M0 to address the vulnerability and prevent exploitation.

Long-Term Security Practices

Regularly monitor for updates and security advisories from Synaptics to stay informed about potential vulnerabilities.
Implement stringent controls on software installations to prevent unauthorized DLL sideloading.

Patching and Updates

Ensure all systems running DisplayLink USB Graphics Software for Windows are updated promptly to version 11.2M0 to mitigate the privilege escalation vulnerability and enhance system security.