This is definitely possible, since you can actually controll cars (at least some models) via a (non-public, but the capability is there) API. Two security researchers at defcon were able to find a way how to control a vehicle remotely, even including things like stopping or turning, and eventually made an exploit that could be used remotely to any car of the same model. So, if they wanted to, they were able to stop or turn the wheel of IIRC hundreds of thousands of cars around the world instantly, since the cars are connected to the network through GSM, so you don’t even need to be anywhere near them.
It’s been a few years since I saw the video, but IIRC the vehicle controls are on a separate board that should not be reachable from the other smart vehicle system. However, they were able to reverse engineer a way how to abuse framework update mechanism as a bridge, and use it to patch the framework to get it under their control. And then they discovered that they could actually trigger the update remotely.
This is definitely possible, since you can actually controll cars (at least some models) via a (non-public, but the capability is there) API. Two security researchers at defcon were able to find a way how to control a vehicle remotely, even including things like stopping or turning, and eventually made an exploit that could be used remotely to any car of the same model. So, if they wanted to, they were able to stop or turn the wheel of IIRC hundreds of thousands of cars around the world instantly, since the cars are connected to the network through GSM, so you don’t even need to be anywhere near them.
It’s been a few years since I saw the video, but IIRC the vehicle controls are on a separate board that should not be reachable from the other smart vehicle system. However, they were able to reverse engineer a way how to abuse framework update mechanism as a bridge, and use it to patch the framework to get it under their control. And then they discovered that they could actually trigger the update remotely.