CTF Writeup/BlockHarbor(2023)

Data Field1 (5pt)

g.s.song 2024. 10. 15. 11:17

Prob


CATEGORY : Getting Started

This challenge is within the Harborbay vehicle simulator on VSEC. From the home page, enter HarborBay. Select the Mach-E UDS Challenge Simulation, then launch the terminal.

How many bytes of data are in the data field of the CAN frame being sent periodically on the CAN interface?

Solve


a2a4325f48ae:~/uds_challenge$ candump vcan0
  vcan0  59E   [2]  9E 10
  vcan0  59E   [2]  9E 10
  vcan0  59E   [2]  9E 10
  vcan0  59E   [2]  9E 10
  vcan0  59E   [2]  9E 10
  vcan0  59E   [2]  9E 10
^Ca2a4325f48ae:~/uds_challenge$

FLAG : 2