CVE-2019-3910 : What You Need to Know
Learn about CVE-2019-3910 affecting Crestron AM-100 devices before firmware version 1.6.0.2. Unauthorized users can exploit an authentication bypass to access administrator features.
CVE-2019-3910 was published on January 18, 2019, and affects Crestron AM-100 devices before firmware version 1.6.0.2. The vulnerability allows unauthorized users to bypass authentication, granting access to certain administrator features.
Understanding CVE-2019-3910
This CVE identifies an authentication bypass vulnerability in the web interface of Crestron AM-100 devices.
What is CVE-2019-3910?
The web interface's return.cgi script in Crestron AM-100 devices before firmware version 1.6.0.2 has a security flaw that permits unauthorized users to circumvent authentication measures. This loophole enables these users to access specific administrator functionalities, such as configuring update sources and rebooting the device.
The Impact of CVE-2019-3910
The vulnerability in CVE-2019-3910 poses a significant risk as it allows unauthorized individuals to gain control over critical device settings and potentially disrupt device operations.
Technical Details of CVE-2019-3910
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerability in Crestron AM-100 devices before firmware version 1.6.0.2 enables unauthenticated remote users to bypass authentication and access administrator features.
Affected Systems and Versions
- Product: Crestron AM-100 Before 1.6.0.2
- Vendor: n/a
- Versions Affected: Crestron AM-100 Before 1.6.0.2
Exploitation Mechanism
Unauthorized users exploit the return.cgi script in the web interface to bypass authentication and gain access to administrator functionalities.
Mitigation and Prevention
Protecting systems from CVE-2019-3910 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update to firmware version 1.6.0.2 or later to patch the authentication bypass vulnerability.
- Restrict network access to the device to trusted users only.
Long-Term Security Practices
- Regularly monitor for security advisories and updates from Crestron.
- Implement strong password policies and multi-factor authentication.
Patching and Updates
Ensure timely installation of firmware updates and security patches provided by Crestron to address known vulnerabilities.