CyberQuest 2025 - Final - Switch Happens

Description

Switch Happens

Whoa there. Too bright. Give me my dark mode back!

Remarks from the authors:

• You will need the provided hardware.
• Start with the “Mission: Comission #2” challenge first.
• Device needs to be USB powered. There is no battery. You should see some e-ink flashes.
• The device is already on the Wi-Fi network, there is no need for special Bluetooth LE equipment.
• If a pairing/commissioning fails for whatever reason, it is recommended to restart the device before the next try. Click the small RST button shortly on the device.

Challenge difficulty: easy

Proudly sponsored by CUJO AI

Metadata

• Filename: -
• Tags: iot, matter

Solution

On the homeassistant webserver, after commissioning the device, we can see that it is a smart switch and we can control the switch (turn it on or turn in off).

If we turn it off, the device displays the flag.

Flag: CQ25{m4tt3r_0f_l1ght_sw1tch}