Autonomous Security

Wired has a good article out about hacking autonomous vehicles, and about “autonomotive attack surfaces” in particular.

The article centers on Charlie Miller, who several years ago hacked a Jeep and took it over remotely while it was driving on the highway (don’t worry, it was a demonstration, not a malicious attack).

Miller talks about the interesting problem of securing vehicles from ride-sharing passengers. In a world where anybody can hail and hop into a self-driving Uber or Lyft, securing those vehicles from hackers who are physically in the car can be a huge challenge.

One example is a hacker who gets into a self-driving car, uses the OBD-II port to install software on the system, and then gets out. Later on, the hacker might use the latent software to take over the car when other riders are inside.

Gives a whole new meaning to “carjacking”.

Miller talks about the “attack surface” of vehicles, which encompasses any opening an attacker can use to hack a vehicle. A quick search for “automotive attack surface” led me to the graphic above, which comes from an academic research paper by Checkoway, et al.

“We discover that remote exploitation is feasible via a broad range of attack vectors (including mechanics tools, CD players, Bluetooth and cellular radio), and further, that wireless communications channels allow long distance vehicle control, location tracking, in-cabin audio exfiltration and theft.”

The further complication is that ridesharing companies are often layering their self-driving software and hardware on top of production automotive vehicles, built by somebody else. It creates a situation where the manufacturer may not design the car to be secure in the same ways that the after-market modifier (in this case, the ridesharing company) needs.

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