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SYSTEM AND METHOD FOR DETECTING OBD-II CAN BUS MESSAGE ATTACKS

  • US 20160021127A1
  • Filed: 07/16/2015
  • Published: 01/21/2016
  • Est. Priority Date: 07/17/2014
  • Status: Active Grant
First Claim
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1. A method for detecting security attacks against a vehicle via the vehicle'"'"'s OBD-II port, the method comprising:

  • at an OBD-II CAN message screening system, wherein the OBD-II CAN message screening system is electrically coupled to the vehicle via the OBD-II port;

    establishing an OBD-II CAN inbound message whitelist;

    in response to receiving an inbound CAN message command from a device external to the vehicle, updating statistics of the inbound CAN message command and comparing the inbound CAN message command with the OBD-II CAN message whitelist; and

    forwarding the inbound CAN message command to the vehicle via the vehicle'"'"'s OBD-II port when the inbound CAN message command appears in the OBD-II CAN message whitelist.

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