$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
Reset

112 challenges · browse all techniques

Challenge CTF Weight Category Has
1up_clank_bro NNS 2026 – Pwn files
ASS NNS 2026 – Web files
AgilePaste_3 NNS 2026 – Web files
BYOC NNS 2026 – Pwn files
Bank_of_NNS NNS 2026 – Blockchain files
BeginneRSA NNS 2026 – Crypto files
Block_Rehearsal NNS 2026 – Blockchain files
CERN NNS 2026 – Blockchain files
Chiral NNS 2026 – Misc files
Crypto_Party_2 NNS 2026 – Crypto files
Dot_matrix NNS 2026 – Misc files
Downhill NNS 2026 – Crypto files
EC_PZ NNS 2026 – Crypto files
Echo_chamber NNS 2026 – Pwn files
Ein_milljon_bjora NNS 2026 – Web files
File_Monster NNS 2026 – Web files
File_parser NNS 2026 – Pwn files
Flag_Pointer_Register NNS 2026 – Reverse files
From_Nothing NNS 2026 – Crypto files
Glomma_River_Trading NNS 2026 – Blockchain files
Harald_Blatann NNS 2026 – Reverse files
Hardware_accelerated_flag_checker_1 NNS 2026 – Misc files
Hardware_accelerated_flag_checker_2 NNS 2026 – Misc files
Keyboard NNS 2026 – Misc files
Light_Weight_Encryption NNS 2026 – Crypto files
Min_beste_venn NNS 2026 – Forensics files
NNS_International_Lounge NNS 2026 – Misc files
NNS_Travel NNS 2026 – Web files
NRT NNS 2026 – Crypto files
NSS_CTF NNS 2026 – Crypto files
No_Strings_Attached NNS 2026 – Reverse files
No_win NNS 2026 – Pwn files
Nostalgia NNS 2026 – Crypto files
Open_Secret NNS 2026 – Reverse files
PHP_is_my_passion NNS 2026 – Web files
Parcel_delivery NNS 2026 – Pwn files
Patch_Tuesday NNS 2026 – Reverse files
Scratch_Space NNS 2026 – Reverse files
Silent NNS 2026 – Misc files
Sleepy_CPU NNS 2026 – Misc files