Mach-Lee
Well-Known Member
- First Name
- Lee
- Joined
- Jul 16, 2021
- Threads
- 262
- Messages
- 11,373
- Reaction score
- 25,043
- Location
- Wisconsin
- Vehicles
- 2022 Mach-E Premium AWD
- Occupation
- Sci/Eng
That is intelligent access, and is a different interrogation/reply cryptography than the basic rolling code remote function commands. That is also hackable with a relay attack, but that's a completely different method than the flipper attack.I'm not so sure an unlock key press is required. The key definitely broadcasts evidenced by the car waking up when you walk towards it. Ford could never confirm or deny without risking security, unfortunately.
On the other hand, if I'm the developer of this firmware I wouldn't want to try and make software that can break all the different methods that detect and validate proximity. Hacking a button press seems simpler.
Again, this specific vulnerability only applies when you are using the remote buttons on the key fob. So if you don't press the buttons on the fob, you will be safe. And actually it requires recording two subsequent key presses, so if you only press lock or unlock one time, you'd also be safe.
It doesn't seem like very many Mach-E owners use the buttons on their key fob (everybody uses PAAK or IA), so this is probably a minor thing for us.
We also don't know which specific Ford vehicles are vulnerable to it. It can vary a lot.
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