Security researchers at Trend Micro’s Zero Day Initiative (ZDI) have uncovered severe security vulnerabilities in Mazda’s infotainment system that could potentially allow attackers to gain complete control over affected vehicles. The critical flaws impact Mazda Connect systems installed in multiple vehicle models, including Mazda 3 vehicles manufactured between 2014 and 2021.
Technical Analysis of the Security Vulnerabilities
The investigation focused on the Mazda Connect Connectivity Master Unit, manufactured by Visteon and running Johnson Controls software. The research team identified multiple critical vulnerabilities in firmware version 74.00.324A, including SQL injection vulnerabilities and unsigned code execution capabilities. Of particular concern is CVE-2024-8356, a critical vulnerability enabling the installation of malicious firmware that can access vital vehicle systems.
Impact Assessment and Security Implications
The discovered vulnerabilities present significant security risks to affected vehicles. Successful exploitation could allow attackers to gain root access to the vehicle’s management system, potentially compromising critical components including:
- Engine control systems
- Brake management
- Transmission operations
- CAN bus networks
- Connected device interfaces
Attack Vector Analysis and Exploitation Requirements
According to ZDI senior researcher Dmitry Yanushkevich, the attack requires physical access to the target vehicle. The exploitation process involves using a specialized USB device, with the entire compromise potentially taking just minutes to execute. High-risk scenarios include situations where vehicles are left unattended in parking lots, service centers, or dealerships.
Mitigation Strategies and Recommendations
While Mazda has not yet released patches for these vulnerabilities, security experts recommend several preventive measures:
- Maintain strict physical security controls for affected vehicles
- Monitor for suspicious USB devices or unauthorized access attempts
- Use only authorized service centers for maintenance
- Keep track of security bulletins and firmware updates from Mazda
The discovery of these vulnerabilities highlights the growing importance of automotive cybersecurity and the need for manufacturers to implement robust security measures in vehicle systems. Vehicle owners should remain vigilant and implement recommended security practices until official patches are released. The automotive industry must prioritize cybersecurity measures in modern vehicles to protect against increasingly sophisticated cyber threats.
