CVE-2019-3936 Explained : Impact and Mitigation

Crestron AM-100 with firmware 1.6.0.2 and AM-101 with firmware 2.7.0.2 is vulnerable to denial of service via a crafted request to TCP port 389. Learn more about the impact, technical details, and mitigation steps.

Understanding CVE-2019-3936

This CVE affects Crestron AirMedia devices running specific firmware versions.

What is CVE-2019-3936?

The vulnerability allows remote unauthenticated attackers to disrupt ongoing slideshows by sending a specially crafted request to TCP port 389.

The Impact of CVE-2019-3936

Exploitation can lead to a denial of service risk by halting active slideshows.
Attackers can interrupt presentations without authentication, impacting user experience.

Technical Details of CVE-2019-3936

This section provides insights into the vulnerability's specifics.

Vulnerability Description

Exploitable flaw in Crestron AM-100 and AM-101 firmware versions.
Triggered by a crafted request to TCP port 389, causing slideshows to stop.

Affected Systems and Versions

Crestron AirMedia devices with AM-100 firmware 1.6.0.2 and AM-101 firmware 2.7.0.2.

Exploitation Mechanism

Attackers exploit the vulnerability by sending a specially crafted request to TCP port 389.

Mitigation and Prevention

Protect your systems from CVE-2019-3936 with these steps.

Immediate Steps to Take

Monitor network traffic for any suspicious activity targeting TCP port 389.
Implement firewall rules to restrict unauthorized access to affected devices.
Apply vendor-recommended security patches promptly.

Long-Term Security Practices

Regularly update firmware to mitigate known vulnerabilities.
Conduct security assessments to identify and address potential risks.

Patching and Updates

Stay informed about security advisories from Crestron and apply patches as soon as they are released.