Security issues in Internet of Vehicles (IoV)
Nowadays, connected vehicles have a major role in enhancing the driving experience.
Connected vehicles in the network share their knowledge with the help of the network
known as the Internet of Vehicles (IoV). However, connection through the network
comes with risks ranging from privacy concerns to security vulnerabilities in the
network. Inside vehicles, many sensors and Electronic Control Units (ECUs) are
connected via specific network protocols, known as Intra-Vehicle communications, to
assist the driver in tasks such as autonomous driving. Communicating through different
protocols results in security openness for attackers to disturb the normal functioning of
sensors and ECUs, which sometimes has detrimental effects. Moreover, in IoV, there is
active communication between vehicles and other vehicles or road infrastructures
alongside the network, known as Inter-Vehicle communications. Inter-Vehicle
communications can also be an open vulnerability to intruders. Motivated by the
mentioned security problems, many research initiatives have elaborated on
building Intrusion Detection Systems (IDS) to detect malicious behavior threatening the
confidentiality, integrity, availability, and authenticity of IoV. In this survey, we first
provide a structured classification of IoV environment, its components, and the
vulnerabilities of inter/intra-vehicle networks. Then, we provide a comprehensive
literature review regarding numerous proposed IDS for IoV networks. Further, we
discuss IDS criteria with a focus on essential areas that should be taken into account
while assessing IoV network security, which can be related to IDS implementation
constraints or further privacy requirements.
