Nightxade: CTF Writeups

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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

Secret Message 1 [100 pts]

We swiped a top-secret file from the vaults of a very secret organization, but all the juicy details are craftily concealed. Can you help me uncover them?

Author: SteakEnthusiast
secret.pdf

Opening up the file, we see some redacted text in the PDF. Conveniently, though, we can highlight and copy text from the PDF. Simply highlighting the redacted area and doing Ctrl+C and pasting somewhere else gives us the flag!

uoftctf{fired_for_leaking_secrets_in_a_pdf}