UofT CTF 2024
Babys First Iot Flag 1 [100 pts]
See introduction for complete context.
Part 1 - Here is an FCC ID, Q87-WRT54GV81, what is the frequency in MHz for Channel 6 for that device? Submit the answer to port 3895.
Simple Google Search reveals that we can look up the FCC ID here. This is what we’re looking for.
Checking the RF Exposure Info and doing Ctrl+F for “channel”, I quickly found that the frequency was 2437 MHz. Now, don’t spend 20 minutes wondering why the submission wasn’t working like I did, and check the discord to realize that you have to check the hint to get a valid submission.
printf '2437\n\0' | nc 35.225.17.48 3895
And now we get the flag:
{FCC_ID_Recon}