With the development of advanced driving assis-tance systems (ADAS) and 5G technologies, intelligent connected vehicles (ICVs) are expected to obtain widespread application in future. Based on V2X architecture (including vehicle-to-vehicle, vehicle-to-infrastructure, vehicle-to-network, vehicle-to-person, etc.), these ICVs, however, face security threats such as privacy disclosure, network attacks, etc., as well as conventional networks. What is worse, attacks within a V2X environment pose more serious threats to life and property as cars could be manipulated to cause accidents. In this paper, we investigate vulnerabilities of the in-vehicle navigation system, which relies greatly on global navigation satellite system (GNSS). We first carefully design a GPS spoofing attack, which is then used to evaluate whether the in-vehicle navigation system can resist the attack. Simulation experiments are presented to verify the effectiveness of the GPS spoofing attack. Then we give suggestions to protect vehicles from being deceived.

GNSS Spoofing and protection; V2X; ICV; security; network