CAN-BUS

Electronic Control Units (ECUs) in a contemporary vehicle exchange data in order to control the vehicle more effectivly via in-vehicle network protocols such as Controller Area Network. These in-vehicle network protocols do not encrypt the data nor authenticate messages; thus the CAN bus is vulnerable to cyber attacks, in which the adversary may take full control of the vehicle. There is a need for developing Intrusion Detection Systems (IDSs) to detect attacks on the CAN bus by tracking abnormal deviations in physical properties of the CAN bus or ECUs to secure the CAN bus. We investigate various attack surfaces of the CAN bus and existing IDSs by exploiting vulnerabilities of the CAN protocol. Not limited to exploring attack surfaces, we develop defense mechanisms that detect attack and promptly mitigate the attacks to minimize the consequence of the attack.