This vulnerability allows physical attackers to execute arbitrary code on affected Tesla vehicles. Authentication is not required to exploit this vulnerability. The specific flaw exists within the iceupdater update mechanism. The issue results from the lack of proper validation of user-supplied firmware. An attacker can leverage this vulnerability to execute code in the context of root.

Tesla Model X vehicles before 2020-11-23 have key fobs that accept firmware updates without signature verification. This allows attackers to construct firmware that retrieves an unlock code from a secure enclave chip.

Tesla Model X vehicles before 2020-11-23 have key fobs that rely on five VIN digits for the authentication needed for a body control module (BCM) to initiate a Bluetooth wake-up action. (The full VIN is visible from outside the vehicle.)

Tesla Model X vehicles before 2020-11-23 do not perform certificate validation during an attempt to pair a new key fob with the body control module (BCM). This allows an attacker (who is inside a vehicle, or is otherwise able to send data over the CAN bus) to start and drive the vehicle with a spoofed key fob.

DISPUTED Certain Tesla vehicles through 2022-03-26 allow attackers to open the charging port via a 315 MHz RF signal containing a fixed sequence of approximately one hundred symbols. NOTE: the vendor's perspective is that the behavior is as intended.