$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
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221 challenges · browse all techniques

Challenge CTF Weight Category Has
py-flagchecker UofTCTF 2025 23.90 Reverse files
racing UofTCTF 2025 23.90 Misc files
racing-2 UofTCTF 2025 23.90 Misc files
sanity-check UofTCTF 2025 23.90 Misc files
scavenger-hunt UofTCTF 2025 23.90 Web files
shuffler UofTCTF 2025 23.90 Crypto files
simple-file-storage UofTCTF 2025 23.90 Misc files
simple-signing UofTCTF 2025 23.90 Misc files
surgery UofTCTF 2025 23.90 Misc files
timed-aes UofTCTF 2025 23.90 Crypto files
timeless UofTCTF 2025 23.90 Web files
walk-in-the-forest UofTCTF 2025 23.90 Misc files
HiveHex_Solitary_Timer 24hCTF 2024 – Mobile files
Illumination 24hCTF 2024 – Crypto files
Interception 24hCTF 2024 – Crypto files
Keypad 24hCTF 2024 – Reverse files
Perl_meets_Brain 24hCTF 2024 – Misc files
Prison_Cells 24hCTF 2024 – Reverse files
SteganOsint_1 24hCTF 2024 – OSINT files
Ungoing_Cafeteria_Development 24hCTF 2024 – Mobile files
net 24hCTF 2024 – Misc files
steg 24hCTF 2024 – Misc files
Jays_Bank UofTCTF 2024 23.90 Web files
Source_Code_Recovery UofTCTF 2024 23.90 Misc files
baby_shellcode UofTCTF 2024 23.90 Pwn files
jail UofTCTF 2024 23.90 Misc files
nothing_to_return UofTCTF 2024 23.90 Pwn files
Benzodiazepine 24hCTF 2023 – Reverse files
Shopping 24hCTF 2023 – Web files
g0shop 24hCTF 2023 – Reverse files
loop 24hCTF 2023 – Pwn files
mangled 24hCTF 2023 – Pwn files
oven 24hCTF 2023 – Pwn files
A_Quantum_Symphony MapleCTF 2023 24.05 Misc files
AaaS MapleCTF 2023 24.05 Misc files
Actually_Baby_Rev MapleCTF 2023 24.05 Reverse files
Artificial MapleCTF 2023 24.05 Reverse files
Coinflip MapleCTF 2023 24.05 Misc files
Fraudulent MapleCTF 2023 24.05 Crypto files
Handshake MapleCTF 2023 24.05 Crypto files