~/talk

X-in-the-Middle: Attacking Fast Charging Piles and Electric Vehicles

Talkat Black Hat Asia 2021 · 2021-05-04..05-07· [security, iot]
name:HuiYu Wu
links:none on file
links:none on file
slides:none on file

A custom MITM device called X charger sits between DC piles and vehicles, relays and fuzzes CAN/GB/T frames, and captures protocol fields that include VINs; tests hit a rented Tesla Model 3 and five other cars and public stations, revealing a VIN-based plug-and-charge flaw that allows free charging after reading a windshield VIN. Device design protects against high voltage hazards (715 V / 120 A), Teslas use a private format so full decoding needs BMS/supercharger firmware, and findings are reported to vendors.

AI-written summary · about

  1. 0:00Introduction
  2. 0:16Charging tech overview
  3. 3:20Market growth and risks
  4. 5:57Attack surface analysis
  5. 8:06X-charger tool design
  6. 10:27Testing challenges
  7. 13:04Implementation details
  8. 15:20Tesla testing results
  9. 17:17Plug and charge risks
  10. 19:11GBT standard analysis
  11. 22:53Vulnerabilities exploited
  12. 25:38Fix and mitigation
  13. 26:45Future standards and Q&A
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