Building an Nmap for Your Car

The network inside a modern car is no longer static; modern in-vehicle networks grow more complex and can change over time. We have developed CANvas, a network mapping tool that identifies what devices in your car communicate on the network and how messages are exchanged between them. CANvas helped us identify an unknown device in a modified 2009 Toyota Prius and pinpoint potentially vulnerable devices in a 2017 Ford Focus.