CVE-2020-5551 Explained : Impact and Mitigation
Learn about CVE-2020-5551 affecting Toyota 2017 Model Year DCU. Unauthorized attackers within Bluetooth range can execute commands and cause denial of service attacks. Find mitigation steps here.
Toyota 2017 Model Year DCU (Display Control Unit) vulnerability allows unauthorized attackers within Bluetooth range to execute arbitrary commands and cause denial of service attacks.
Understanding CVE-2020-5551
What is CVE-2020-5551?
The vulnerability in Toyota's 2017 Model Year DCU enables attackers within Bluetooth range to disrupt services and potentially execute unauthorized commands.
The Impact of CVE-2020-5551
The affected DCUs are installed in various Lexus and Toyota models, allowing attackers to potentially impact vehicle control systems without affecting critical functions like driving, turning, and stopping.
Technical Details of CVE-2020-5551
Vulnerability Description
- Unauthenticated attackers within Bluetooth range can cause denial of service attacks and execute arbitrary commands.
Affected Systems and Versions
- Affected product: DCU (Display Control Unit)
- Vendor: TOYOTA MOTOR CORPORATION
- Versions: 2017 Model Year
Exploitation Mechanism
- Attackers with knowledge of the target vehicle control system can send diagnostic commands to ECUs, leading to limited availability impacts.
Mitigation and Prevention
Immediate Steps to Take
- Implement Bluetooth security best practices
- Regularly update firmware and software
- Monitor and restrict Bluetooth connectivity
Long-Term Security Practices
- Conduct regular security assessments
- Train employees on cybersecurity best practices
Patching and Updates
- Apply security patches provided by TOYOTA MOTOR CORPORATION