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Phantom Fob

The fob locks but won’t unlock. Codes change every second, forge the signal; don’t replay it.

medium

60 min

72

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User profile photo.

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Score updated
Score updated

Set up your virtual environment

To successfully complete this room, you'll need to set up your virtual environment. This involves starting both your AttackBox (if you're not using your VPN) and Lab Machines, ensuring you're equipped with the necessary tools and access to tackle the challenges ahead.
Attacker machine
Status:Off
Lab machine
Status:Off

Modern cars have an internal network called the CAN Bus. Every part of the car: doors, dashboard, engine, talks to every other part by broadcasting little messages onto this shared wire. In this room you're plugged into the CAN bus of a demo vehicle. You've been given a key fob that can Lock the car and sound the Horn, but has no Unlock button. The manufacturer claims the unlock command "can't be copied." Your job is to watch the car's messages, work out how the door commands are built, and craft the Unlock message yourself.

Answer the questions below

What is the flag?