$ ctf42

Challenges

Category
Difficulty
CTFtime weight
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Higher weight ≈ harder, more prestigious event.
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82 challenges · browse all techniques

Challenge CTF Weight Category Has
Block_construction
#aes-ecb#predictable-rng-seed
 BraekerCTF 2024 24.72 Crypto files wu 1
Embryobot
#elf-patching#shellcode
 BraekerCTF 2024 24.72 Reverse files wu 1
Eye_doctor
#image-deblurring#deconvolution
 BraekerCTF 2024 24.72 Misc files wu 1
The_mainframe_speaks
#rexx-reversing
 BraekerCTF 2024 24.72 Reverse files wu 1
e
#integer-overflow#floating-point
 BraekerCTF 2024 24.72 Misc files wu 1
Cat-0-Graphy
#zip-cracking
 eHaCON 2021 – Crypto files wu 1
Famous_Pin
#static-analysis
 eHaCON 2021 – Reverse files wu 3
Seeking_the_flag
#static-analysis
 eHaCON 2021 – Reverse files wu 3
Skipping_the_Ropes
#rot13
 eHaCON 2021 – Crypto files wu 2
Binary_shrink BraekerCTF 2024 24.72 Reverse files wu 2
Empty_execution BraekerCTF 2024 24.72 Web files wu 1
Passcode eHaCON 2021 – Reverse files wu 3
AS_FwUpd Ctrl+Space 2025 Quals 25.00 Reverse files
DANSAT_Hidden_Secrets Ctrl+Space 2025 Quals 25.00 Crypto files
DANSAT_Photo_Shooting Ctrl+Space 2025 Quals 25.00 Crypto files
DANSAT_Restore_Me Ctrl+Space 2025 Quals 25.00 Reverse files
Hamming_Bird Ctrl+Space 2025 Quals 25.00 Misc files
Satellite_Messaging_System Ctrl+Space 2025 Quals 25.00 Reverse files
Satellite_as_a_Service Ctrl+Space 2025 Quals 25.00 Web files
Three_Rounds_Crypto Ctrl+Space 2025 Quals 25.00 Crypto files
avenging_lfsrs Ctrl+Space 2025 Quals 25.00 Crypto files
carbonara_satellite Ctrl+Space 2025 Quals 25.00 Reverse files
cosmic_ray Ctrl+Space 2025 Quals 25.00 Pwn files
hal_9000_1 Ctrl+Space 2025 Quals 25.00 Reverse files
lone_explorer Ctrl+Space 2025 Quals 25.00 Reverse files
payloadcalc Ctrl+Space 2025 Quals 25.00 Pwn files
sar Ctrl+Space 2025 Quals 25.00 Misc files
spAES_1 Ctrl+Space 2025 Quals 25.00 Crypto files
spAES_2 Ctrl+Space 2025 Quals 25.00 Crypto files
stack_building Ctrl+Space 2025 Quals 25.00 Misc files
stack_smashing Ctrl+Space 2025 Quals 25.00 Pwn files
x_otp Ctrl+Space 2025 Quals 25.00 Crypto files
3_Ball_Mark WHY 2025 Finals – Reverse files
BitLocked WHY 2025 Finals – Forensics files
ColoredBlocks WHY 2025 Finals – Misc files
Flyer WHY 2025 Finals – Web files
Flyer WHY 2025 Quals – Web files
Gamerboy WHY 2025 Finals – Reverse files
Hacker_Event_DB WHY 2025 Finals – Reverse files
Job_Security WHY 2025 Finals – Pwn files