$ ctf42

Challenges

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

Challenge CTF Weight Category Has
Yo_DOC NNS 2025 – Crypto files
agebarrier NNS 2025 – Web files
alpha NNS 2025 – Pwn files
archaeology NNS 2025 – Blockchain files
astchoo NNS 2025 – Misc files
babyrsa NNS 2025 – Crypto files
badlock NNS 2025 – Blockchain files
breaker NNS 2025 – Reverse files
card7 NNS 2025 – Misc files
chail NNS 2025 – Blockchain files
enemies NNS 2025 – Web files
grinch NNS 2025 – Blockchain files
grooves NNS 2025 – Misc files
guardrails NNS 2025 – Web files
haatetepe NNS 2025 – Pwn files
holychem NNS 2025 – Misc files
huffameg NNS 2025 – Blockchain files
lmnop NNS 2025 – Blockchain files
mVM NNS 2025 – Reverse files
man NNS 2025 – Web files
mandatory NNS 2025 – Reverse files
noters NNS 2025 – Pwn files
rtfm NNS 2025 – Misc files
slowdoor NNS 2025 – Reverse files
tobe NNS 2025 – Misc files
wannarealflag NNS 2025 – Reverse files
Boofy TGHACK 2020 – Misc files
Bufferfly TGHACK 2020 – Misc files
ParallelUniverseQuarantineSimulator TGHACK 2020 – Misc files
ParallelUniverseWarmup TGHACK 2020 – Misc files
TheBiohackerHerbariumService TGHACK 2020 – Misc files
UselessCrap TGHACK 2020 – Misc files