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2024

Clever Thinking
[442] <crypto/> <ecc/> <smarts-attack/>
Piano Man
[324] <crypto/> <rsa/>
Repeat
[100] <crypto/> <xor/>
Enable Me
[358] <forensics/> <microsoft-office/>
Secret Message 1
[100] <forensics/>
Babys First Iot Flag 1
[100] <iot/> <fcc-lookup/>
Babys First Iot Flag 2
[100] <iot/> <reverse-image-search/>
Babys First Pyjail
[100] <jail/> <pyjail/> <blacklist/>
Out Of The Bucket
[100] <misc/> <Google-storage/>
Flying High
[100] <osint/>
Basic Overflow
[100] <pwn/> <ret2win/> <buffer-overflow/>
Patched Shell
[250] <pwn/> <ret2win/> <buffer-overflow/>

UofT CTF 2024

Babys First Iot Flag 2 [100 pts]

See introduction for complete context.

Part 2 - What company makes the processor for this device? https://fccid.io/Q87-WRT54GV81/Internal-Photos/Internal-Photos-861588. Submit the answer to port 6318.

We’re given several photos about the processor. After a bit of exploring, I ended up deciding to reverse image search the image of the processor. The second result was this. In the sidebar underneath the picture of the router, it tells us the CPU is a Broadcom BCM5354, so our answer is Broadcom!

printf 'Broadcom\n\0' | nc 35.225.17.48 6318

{Processor_Recon}