CVE-2019-3933 : Security Advisory and Response

The Crestron AM-100 device with firmware version 1.6.0.2 and AM-101 device with firmware version 2.7.0.2 have a security vulnerability that allows unauthorized access to view a slideshow without the access code.

Understanding CVE-2019-3933

This CVE involves improper access control in Crestron AirMedia devices, enabling remote attackers to bypass presentation code and view slideshows without authentication.

What is CVE-2019-3933?

The vulnerability in Crestron AirMedia devices allows individuals to bypass the presentation code by sending an HTTP request to a specific URL, granting unauthorized access to view slideshows.

The Impact of CVE-2019-3933

This vulnerability poses a significant security risk as remote attackers can exploit it without authentication, potentially compromising sensitive information displayed in the slideshows.

Technical Details of CVE-2019-3933

The following technical details outline the specifics of the CVE.

Vulnerability Description

CWE-284: Improper Access Control
Allows unauthorized individuals to view slideshows without the access code

Affected Systems and Versions

Product: Crestron AirMedia
Versions: AM-100 firmware 1.6.0.2 and AM-101 firmware 2.7.0.2

Exploitation Mechanism

Remote attackers can exploit the vulnerability by making an HTTP request to /images/browserslide.jpg

Mitigation and Prevention

To address CVE-2019-3933, the following steps are recommended:

Immediate Steps to Take

Disable remote access to the affected devices if not required
Implement network segmentation to limit access to vulnerable devices
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities
Conduct security assessments and penetration testing to identify and address weaknesses

Patching and Updates

Apply patches provided by Crestron to fix the vulnerability and enhance device security