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Unpatchable AMD Chip Flaw Unlocks Paid Tesla Feature Upgrades
(www.tomshardware.com)
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this post was submitted on 03 Aug 2023
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Technology
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You would need to be crazy to apply a voltage regulation hack to the CPU that they don't sell spare parts if something goes wrong. Risking bricking a $50000 car to unlock the $300 heated seats?
And while the root access is unpatchable, because the car is always connected to internet and always sharing too much telemetry to their servers, it would be trivial for them to add an additional server side check to see if some feature has been unlocked without paying.
I think the key issue is that the exploit can only be fixed by replacing the hardware in these cars, which means for Tesla that the vehicle’s unique IDs are probably the most valuable thing that could be taken advantage of.