Varnost komunikacijskih vodil v vozilu

VIDMAR, ROBI (author), Kos, Andrej (mentor)

Cilj diplomske naloge je bil raziskati, kako je poskrbljeno za varnost komunikacijskih vodil v vozilu. V prvem poglavju je predstavljen splošen pregled vodila CAN od arhitekture do delovanja vodila. V nadaljevanju smo se dotaknili vodil, ki jih ima naše testno vozilo, na katerem so bili opravljeni preizkusi. Podrobneje so obravnavana vodila CAN in kako dostopamo do njih. Potem so predstavljeni primeri napadov, s katerimi lahko posežemo v delovanje vozila. Navedene so tudi pomanjkljivosti, ki te napade omogočajo. Izdelan je pregled rešitev, ki omogoča zaznavo vdora v vodilo ter preprečevanje le tega. V praktičnem delu smo izdelali CAN-bus ščit in se z njim povezali direktno na vodilo za udobje. S pomočjo povratnega inženiringa smo pridobili primere paketov in jih nato z izdelano napravo posredovali na vodilo. Podani so doseženi rezultati manipuliranja z vozilom.

• Language: Slovenian
• Keywords: CAN, vodilo, okvir, napadi
• Work type: Undergraduate thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2015
• PID: 20.500.12556/RUL-30799
• Publication date in RUL: 21.05.2015

Secondary language

• Language: English
• Title: Vehicular communication bus security

Abstract

The purpose of the thesis was to explore the level of safety of communication buses in a vehicle. The first chapter provides a general outline of the CAN-BUS, its architecture and functioning. Furthermore, the thesis touches on the buses of our testing vehicle and presents CAN-BUSES and the way to access them in more detail. It also presents examples of attacks which can affect the functioning of the vehicle and points to the flaws allowing such attacks. In addition, the thesis contains an overview of solutions enabling intrusion detection and prevention. In the practical part we designed a CAN-BUS Shield to connect it to the Convenience bus. Using reverse engineering we acquired examples of packets and sent them to the bus with the device we designed. The final part contains the results of the manipulation of the vehicle.

• Keywords: CAN, bus, frame, attacks