$ ctf42

Challenges

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2168 challenges · browse all techniques

Challenge CTF Weight Category Has
perfectly_normal_theme_editor h4ckc0n 2025 24.23 Web files
A_slice_of_keys nullconHackIM 2025 Berlin – Crypto files
Field_trip nullconHackIM 2025 Berlin – Crypto files
Fotispy_1 nullconHackIM 2025 Berlin – Pwn files
Fotispy_2 nullconHackIM 2025 Berlin – Pwn files
Fotispy_3 nullconHackIM 2025 Berlin – Pwn files
Fotispy_4 nullconHackIM 2025 Berlin – Pwn files
Fotispy_5 nullconHackIM 2025 Berlin – Pwn files
Fotispy_6 nullconHackIM 2025 Berlin – Pwn files
Fotispy_7 nullconHackIM 2025 Berlin – Pwn files
Magnetic_tape nullconHackIM 2025 Berlin – Crypto files
Narrow_DES nullconHackIM 2025 Berlin – Crypto files
Null_Sanity nullconHackIM 2025 Berlin – Misc files
PKCS nullconHackIM 2025 Berlin – Crypto files
Power_tower nullconHackIM 2025 Berlin – Crypto files
Rustyflag nullconHackIM 2025 Berlin – Reverse files
Simple_ECDSA nullconHackIM 2025 Berlin – Crypto files
decryption_execution_service nullconHackIM 2025 Berlin – Crypto files
gorevgohome nullconHackIM 2025 Berlin – Reverse files
grandmas_notes nullconHackIM 2025 Berlin – Web files
hidden_strings nullconHackIM 2025 Berlin – Reverse files
usbstorage nullconHackIM 2025 Berlin – Misc files
Cake_Shop Cygenix 2024 – OSINT files
Chain_it Cygenix 2024 – Pwn files
Classic Cygenix 2024 – Pwn files
DH_900 Cygenix 2024 – Crypto files
Difficult_Choices Cygenix 2024 – Misc files
Easy_Peasy_Apk Cygenix 2024 – Reverse files
Espionage Cygenix 2024 – Forensics files
Gadgets Cygenix 2024 – Pwn files
Intercept Cygenix 2024 – Misc files
Password_Encrypt Cygenix 2024 – Reverse files
Rabbit_Hole Cygenix 2024 – Reverse files
SUS_Image Cygenix 2024 – Forensics files
The_Encrypted_Trilogy Cygenix 2024 – Crypto files
Unmask Cygenix 2024 – Forensics files
steg Cygenix 2024 – Misc files
APK_ocalypse_Now HackHavoc 2024 – Mobile files
CyberMaterialHavoc HackHavoc 2024 – Crypto files
Dialing_for_Danger HackHavoc 2024 – Web files