Short: Breaking the Charge: Exploiting State Manipulation in EV Charging
summary
ChargeX is a hardware extension cable that embeds a tiny attack circuit to tamper with the J1772 control pilot voltage and flip charging states; two methods—serial insertion and parallel attachment—manipulate the pilot voltage via added resistance to force state transitions (including from "stand by" to "charging"), create DoS, or induce mischarging. Evaluated with a simulated vehicle on one public station and two home chargers and validated on a Tesla Model 3; measured resistor ranges match estimated bounds and attacks succeed in most trials.
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chapters (11)
- 0:00Introduction
- 0:35EV charging systems overview
- 2:44EV charging attack limits
- 3:48AC charging security focus
- 4:29ChargeX attack methodology
- 5:32SAE J1772 basics
- 6:37Pilot voltage and charging states
- 7:39Serial insertion and parallel attacks
- 8:45Attack automation design
- 9:05Lab and real-world evaluation
- 10:09State switching results
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