The device is called OwnStar and it’s the creation of Samy Kamkar, a security researcher and hardware hacker who makes a habit of finding clever ways around the security of various systems, including garage doors, wireless keyboards, and drones. His newest creation essentially allows him to take remote control of users’ vehicles simply by sending a few special packets to the OnStar service. The attack is a car thief’s dream.
Kamkar said that by standing near a user who has the RemoteLink mobile app open, he can use the OwnStar device to intercept requests from the app to the OnStar service. He can then take over control of the functions that RemoteLink handles, including unlocking and remotely starting the vehicle.