$ ctf42

Misc CTF challenges

3,995 Misc CTF challenges from 420 CTFs (2011–2026), 705 with writeups.

Top misc techniques

#stack-buffer-overflow 44 #format-string 41 #ret2libc 29 #rop 29 #use-after-free 26 #tcache-poisoning 24 #got-overwrite 21 #one-gadget 19 #shellcode 19 #stack-overflow 17 #ret2win 17 #heap-overflow 14 #tcache 13 #buffer-overflow 12 #double-free 11

Challenges

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Challenge CTF Weight Has
Hashes_on_Hashes_on_Hashes NahamCon 2024 41.61 files wu 1
Kassaskapet_1_Den_Beromda_Bosse CrateCTF 2024 – files wu 1
Learn NTUA_H4CK 2024 24.40 files wu 1
Missing L3akCTF 2024 24.43 files wu 1
PasswordGuesser THCon 2024 – files wu 1
SafuSol BlazCTF 2024 25.00 files wu 1
Slot_Machine UIUCTF 2024 – files wu 1
bank ImaginaryCTF 2024 49.81 files wu 1
bank_revenge ImaginaryCTF 2024 49.81 files wu 1
mixed_signals LA 2024 – files wu 1
zerocoin LA 2024 – files wu 1
Ajaja_sa_Chef Srdnlen 2023 24.17 files wu 1
Couch_Potato Securinets 2023 Quals 65.42 files wu 1
Free_Real_Estate Srdnlen 2023 24.17 files wu 1
Ghost BlazCTF 2023 25.00 files wu 1
I_love_this_world SekaiCTF 2023 24.86 files wu 1
Jambo BlazCTF 2023 25.00 files wu 1
Missing BlazCTF 2023 25.00 files wu 1
New_Management BuckeyeCTF 2023 34.50 files wu 1
Pool_by_sec3 N1CTF 2023 97.33 files wu 1
PyJail 1337UP 2023 24.23 files wu 1
Raf_Hide Securinets 2023 Quals 65.42 files wu 1
The_dog_ate_my_QR BSidesTLV 2023 35.00 files wu 1
Web3_ZKPLite vsCTF 2023 23.32 files wu 1
aNyFT BuckeyeCTF 2023 34.50 files wu 1
algo AmateursCTF 2023 24.54 files wu 1
embedded TAMUctf 2023 – files wu 1
soulsplitter Hack.lu 2023 94.73 files wu 1
HouseOfCSY BambooFox 2021 24.15 files wu 1
kernel UIUCTF 2021 – files wu 1
lumberjack_against_nature TSG 2021 – files wu 1
lumberjack_in_nature TSG 2021 – files wu 1
0c RCTF 2020 – files wu 1
Connect Shakti 2020 25.00 files wu 1
Credentials SuSeC 2020 24.15 files wu 1
MuJS UIUCTF 2020 – files wu 1
Pinocchio HacktivityCon 2020 21.86 files wu 1
babynote ASIS 2020 Quals 64.97 files wu 1
blacklist perfectblue 2020 – files wu 1
il TokyoWesterns 2020 – files wu 1