CVE-2019-3926 Explained : Impact and Mitigation
Learn about CVE-2019-3926 affecting Crestron AirMedia devices. Unauthorized remote attackers can exploit this command injection vulnerability to execute commands with root privileges.
The Crestron AM-100 and AM-101 devices with specific firmware versions are vulnerable to command injection through SNMP OID iso.3.6.1.4.1.3212.100.3.2.14.1, allowing unauthorized remote attackers to execute commands with root privileges.
Understanding CVE-2019-3926
This CVE involves a vulnerability in Crestron AirMedia devices that can be exploited for command injection.
What is CVE-2019-3926?
The CVE-2019-3926 vulnerability allows attackers to execute commands on the operating system with root privileges through SNMP OID iso.3.6.1.4.1.3212.100.3.2.14.1.
The Impact of CVE-2019-3926
This vulnerability poses a significant risk as it enables unauthorized remote attackers to take control of the affected devices and execute commands with elevated privileges.
Technical Details of CVE-2019-3926
The following technical details provide insight into the vulnerability.
Vulnerability Description
The vulnerability in Crestron AirMedia devices running specific firmware versions allows for command injection through SNMP OID iso.3.6.1.4.1.3212.100.3.2.14.1.
Affected Systems and Versions
- Product: Crestron AirMedia
- Vendor: Crestron
- Vulnerable Versions: AM-100 firmware 1.6.0.2 and AM-101 firmware 2.7.0.2
Exploitation Mechanism
The vulnerability can be exploited by unauthorized remote attackers to execute commands on the operating system with root privileges.
Mitigation and Prevention
Protecting systems from CVE-2019-3926 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the firmware of Crestron AM-100 and AM-101 devices to non-vulnerable versions.
- Implement network segmentation to restrict access to SNMP services.
- 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 potential weaknesses.
- Educate users and administrators about secure configuration practices.
- Implement strong access controls and authentication mechanisms.
- Stay informed about security advisories and updates from vendors.
Patching and Updates
- Apply patches provided by Crestron to address the vulnerability and enhance device security.