CVE-2019-3939 : Exploit Details and Defense Strategies
Learn about CVE-2019-3939 affecting Crestron AirMedia devices with default login credentials. Find out the impact, affected versions, and mitigation steps.
This CVE involves Crestron AirMedia devices with specific firmware versions that are vulnerable to exploitation due to default login credentials.
Understanding CVE-2019-3939
This vulnerability allows unauthenticated attackers to gain privileged control over affected devices by using default login credentials.
What is CVE-2019-3939?
The web interface of Crestron AM-100 and AM-101 devices, running firmware versions 1.6.0.2 and 2.7.0.2 respectively, uses default login credentials that can be exploited by attackers without authentication.
The Impact of CVE-2019-3939
Attackers can leverage the default credentials to access and control the affected devices remotely, potentially leading to unauthorized actions and compromise of sensitive information.
Technical Details of CVE-2019-3939
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability stems from the utilization of default login credentials (admin/admin and moderator/moderator) in the web interface of Crestron AM-100 and AM-101 devices.
Affected Systems and Versions
- Product: Crestron AirMedia
- Vendor: Crestron
- Versions: AM-100 firmware 1.6.0.2 and AM-101 firmware 2.7.0.2
Exploitation Mechanism
Attackers can exploit the default credentials to gain unauthorized access to the devices, allowing them to take control and perform malicious activities.
Mitigation and Prevention
Protecting systems from CVE-2019-3939 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Change default credentials to strong, unique passwords immediately.
- Implement network segmentation to restrict access to vulnerable devices.
- Monitor device logs for any unauthorized access attempts.
Long-Term Security Practices
- Regularly update firmware and apply security patches to mitigate known vulnerabilities.
- Conduct security training for users to raise awareness about the importance of strong authentication practices.
Patching and Updates
- Check for firmware updates provided by Crestron and apply them promptly to address the vulnerability.