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Truck Hacking: An Experimental Analysis of the SAE J1939 Standard
Yelizaveta Burakova, Bill Hass, Leif Millar, and André Weimerskirch, University of Michigan
Consumer vehicles have been proven to be insecure; the addition of electronics to monitor and control vehicle functions have added complexity resulting in safety critical vulnerabilities. Heavy commercial vehicles have also begun adding electronic control systems similar to consumer vehicles. We show how the openness of the SAE J1939 standard used across all US heavy vehicle industries gives easy access for safety-critical attacks and that these attacks aren't limited to one specific make, model, or industry.
We test our attacks on a 2006 Class-8 semi tractor and 2001 school bus. With these two vehicles, we demonstrate how simple it is to replicate the kinds of attacks used on consumer vehicles and that it is possible to use the same attack on other vehicles that use the SAE J1939 standard. We show safety critical attacks that include the ability to accelerate a truck in motion, disable the driver's ability to accelerate, and disable the vehicle's engine brake. We conclude with a discussion for possibilities of additional attacks and potential remote attack vectors.
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