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Remote Exploitation of Honda Connected Vehicles via Telematics APIs

Mohammed Shine

Mohammed Shine uncovers broken access controls in Honda Connect APIs, allowing unauthorized attackers to remotely unlock doors, start engines, and honk horns.

Summary

The Expanding Attack Surface of Mobile Connected Car Apps

Modern vehicles increasingly integrate companion mobile applications that communicate with cloud backend servers to execute remote vehicle management commands.

Auditing Honda Connect API Endpoints

Mohammed Shine analyzes the REST APIs powering the Honda Connect mobile application for 5th generation Honda City vehicles, identifying broken object-level access controls.

Executing Remote Actions via Telematics Control Units (TCUs)

The author demonstrates manipulating API requests to send unauthorized commands directly to target vehicle TCUs—including locking/unlocking doors and remote engine starts.

Securing Connected Vehicle Cloud Backends

The presentation outlines crucial API security controls, token authorization checks, and mutual TLS validation required for automotive telematics backends.

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