Security Testing of an OBD-II Connected IoT Device
Abstract: The Internet of Things (IoT) is a rapidly growing network. As society begins to trust the devices in the IoT with increasingly complex tasks, issues regarding the security of these devices are of high priority. An example of an IoT-device in which failure of security could be fatal, is the Telia Sense. Telia Sense is an OBD-II dongle which together with a mobile application connects a car to a smartphone.In this paper, the discoveries that was made during security testing of Telia Sense will be discussed. The system was investigated through a black box perspective. Primarily, a model of the system was produced. Threats were then identified, ranked and tested accordingly.No major vulnerabilities were found. The results all indicated that Telia Sense is a well secured system. The main reasons to this is the fact that the device has very limited functionality and its communications are bounded. Even though no major vulnerabilities were found, this paper can still be used as a guide for future testing of security in IoT devices.
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