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An unpatchable flaw in CAN protocol expose modern cars to hack

The CAN bus is a vehicle standard designed to allow components to communicate with each other, it is widespread in automotive and the flaw discovered by the researchers affects a large number of vendors and vehicle models.

The messages exchanged on the CAN, including errors, are called “frames,” the researchers focused their research on how CAN handles errors.

“Our attack focuses on how CAN handles errors. Errors arise when a device reads values that do not correspond to the original expected value on a frame,” read the blog post published by Trend Micro.


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