CVE-2019-3938 : Security Advisory and Response

The Crestron AM-100 and AM-101 devices with specific firmware versions are vulnerable to a security issue that exposes usernames and passwords.

Understanding CVE-2019-3938

This CVE identifies a vulnerability in Crestron AirMedia devices that could allow local attackers to access sensitive information.

What is CVE-2019-3938?

The Crestron AM-100 and AM-101 devices, running firmware versions 1.6.0.2 and 2.7.0.2 respectively, have a flaw in the "export configuration" feature that encrypts configuration files with hardcoded logic, potentially enabling unauthorized access.

The Impact of CVE-2019-3938

The vulnerability could lead to the exposure of usernames, passwords, and other configuration details stored on the affected devices, compromising the security and privacy of users.

Technical Details of CVE-2019-3938

The following technical aspects provide insight into the vulnerability.

Vulnerability Description

The flaw in the encryption logic of the configuration files generated by the "export configuration" feature allows local attackers to decrypt and access sensitive information.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers can exploit the hardcoded encryption logic to decrypt configuration files and retrieve usernames and passwords stored on the devices.

Mitigation and Prevention

Protecting systems from CVE-2019-3938 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the "export configuration" feature on the affected devices to prevent further exposure of sensitive data.
Monitor network traffic for any suspicious activities that may indicate unauthorized access.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities and enhance security measures.
Implement strong access controls and authentication mechanisms to restrict unauthorized access to sensitive information.

Patching and Updates

Check for security advisories from Crestron and apply patches or updates provided to address the vulnerability.