$ ctf42

Challenges

Category
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366 challenges · browse all techniques

Challenge CTF Weight Category Has
Escape_the_battlefield
#godot#reversing
 THCon 2024 – Reverse files wu 1
SpaceNotes
#access-control-bypass
 THCon 2024 – Web files wu 1
Stegharmed_Part_1
#steganography#audio
 THCon 2024 – Stego files wu 1
base64custom
#custom-base64
 THCon 2024 – Forensics files wu 2
DesintegratedRSA
#rsa#bit-flip-recovery#prime-reconstruction
 DaVinciCTF 2023 29.26 Crypto files wu 2
CwyptographicOwacle
#ecdsa#signature-oracle#private-key-recovery#aes
 DaVinciCTF 2022 24.50 Crypto files wu 1
MineGame
#reversing#minesweeper#prng-prediction
 DaVinciCTF 2022 24.50 Reverse files wu 2
Obfuscated
#java-reversing#string-obfuscation#per-chunk-check
 DaVinciCTF 2022 24.50 Reverse files wu 1
small_weiner
#rsa#boneh-durfee#lattice#small-private-exponent
 DaVinciCTF 2022 24.50 Crypto files wu 2
LocalCardMaker
#lfi (local-file-inclusion)#php-rce
 THCon 2022 – Web files wu 1
BootlessRSA
#rsa#low-exponent#cube-root
 DaVinciCTF 2021 24.50 Crypto files wu 3
CrackMe
#reversing#hash-byte-reversal#hashcat
 DaVinciCTF 2021 24.50 Reverse files wu 3
Decode
#encoding#hex-to-ascii#multi-layer-encoding
 DaVinciCTF 2021 24.50 Crypto files wu 1
Kanagawa
#stack-buffer-overflow#ret2win#no-aslr
 DaVinciCTF 2021 24.50 Pwn files wu 3
PostOffice
#forensics#telegram-api
 DaVinciCTF 2021 24.50 Pwn files wu 1
Quotebook
#heap#use-after-free (uaf)#function-pointer-overwrite
 DaVinciCTF 2021 24.50 Pwn files wu 2
RoccaPia
#reversing#xor-cipher
 DaVinciCTF 2021 24.50 Reverse files wu 3
Substitution
#substitution-cipher#atbash
 DaVinciCTF 2021 24.50 Crypto files wu 3
TheMoreTheLess
#rsa#multiprime#factordb
 DaVinciCTF 2021 24.50 Crypto files wu 2
flashy MidnightFlag 2026 24.50 Blockchain files wu 3
Back_to_the_past
#srand-time-seed#lcg#bruteforce
 PwnMe 2025 Quals 24.95 Reverse files wu 1
Easy_Diffy
#diffie-hellman#degenerate-generator
 PwnMe 2025 Quals 24.95 Crypto files wu 1
Mafia_at_the_end_1
#pcap#irc#smart-contract#etherscan
 PwnMe 2025 Quals 24.95 Misc files wu 1
Mafia_at_the_end_2
#smart-contract#predictable-rng#storage-read
 PwnMe 2025 Quals 24.95 Misc files wu 1
Mirror_Hash
#custom-hash#birthday-attack#subset-sum#hash-collision
 PwnMe 2025 Quals 24.95 Crypto files wu 1
My_BetterZED
#aes-cfb#iv-reuse#keystream-reuse
 PwnMe 2025 Quals 24.95 Crypto files wu 1
My_Zed
#aes#iv-leaks-password#zlib#bruteforce
 PwnMe 2025 Quals 24.95 Crypto files wu 1
ProfileEditor
#path-traversal#flask
 PwnMe 2025 Quals 24.95 Web files wu 1
Vending_Machine
#ecdsa#biased-nonce#signature-malleability#python-hash-collision#lattice
 PwnMe 2025 Quals 24.95 Crypto files wu 1
Ode GCC 2024 – Blockchain files wu 2
TOOTB GCC 2024 – Blockchain files wu 2
PasswordGuesser THCon 2024 – Misc files wu 1
Cryptex DaVinciCTF 2021 24.50 Reverse files wu 1
captain_hook SharkyCTF 2020 24.29 Misc files wu 2
give_away_1 SharkyCTF 2020 24.29 Misc files wu 3
give_away_2 SharkyCTF 2020 24.29 Misc files wu 3
kikoo_4_ever SharkyCTF 2020 24.29 Misc files wu 1
67 MidnightFlag 2026 24.50 Reverse files
Canvas_of_Fear MidnightFlag 2026 24.50 Pwn files
Cheat_or_not_cheat MidnightFlag 2026 24.50 Reverse files