$ ctf42

Challenges

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

Challenge CTF Weight Category Has
2linenodejs
#prototype-pollution#nodejs#rce-gadget
 Balsn 2022 53.42 Web files wu 1
AsianParents
#stack-buffer-overflow#fork-ipc#canary
 Balsn 2022 53.42 Pwn files wu 1
Cairo_Reverse
#cairo-starknet-contract-reversing
 Balsn 2022 53.42 Blockchain files wu 1
my_first_app
#nextjs-source-api-disclosure
 Balsn 2022 53.42 Web files wu 1
orxw
#rop#seccomp-orw#open-read-write
 Balsn 2021 37.00 Pwn files wu 1
HouseOfCSY BambooFox 2021 24.15 Misc files wu 1
Diary
#heap-overflow#fastbin-attack#overlapping-chunks#malloc-hook
 Balsn 2020 25.00 Misc files wu 3
KrazyNote
#linux-kernel-exploitation
 Balsn 2019 25.00 Misc files wu 2
Machbook
#macos-heap-exploitation#libmalloc
 Balsn 2019 25.00 Misc files wu 1
SecPwn
#srop#rop#shellcode
 Balsn 2019 25.00 Misc files wu 1
securenote
#heap-overflow#aes-ctr-keystream-recovery#overlapping-chunks
 Balsn 2019 25.00 Misc files wu 1
0_login THJCC 2026 – Crypto files
404 THJCC 2026 Summer – Reverse files
676767 THJCC 2026 – Crypto files
67jail THJCC 2026 Summer – Misc files
ASCII_Driver THJCC 2026 – Pwn files
A_Little_Penguins_Starry_Sky_Observation THJCC 2026 Summer – Misc files
A_long_time_ago... THJCC 2026 – Web files
Afterimage1 THJCC 2026 Summer – Forensics files
Afterimage2 THJCC 2026 Summer – Forensics files
All_night_long... THJCC 2026 Summer – Misc files
Baby_Malware THJCC 2026 – Reverse files
Baby_PHP THJCC 2026 – Pwn files
Baritone THJCC 2026 Summer – Misc files
Because_There_is_no_one_Make_Reverse_So_I_Create_This_Chal THJCC 2026 Summer – Reverse files
Bit_by_Bit THJCC 2026 – Crypto files
BlackFrost THJCC 2026 Summer – Reverse files
Butterfly THJCC 2026 – Crypto files
CTFxck THJCC 2026 Summer – Misc files
Canary_Notes THJCC 2026 Summer – Pwn files
Chronicle THJCC 2026 Summer – Pwn files
CoLoR_iS_cOdE THJCC 2026 – Forensics files
ExBaby_Shark_Master THJCC 2026 – Forensics files
Excalipipe THJCC 2026 – Pwn files
Farm THJCC 2026 – Pwn files
Fllllllag_ch3cker_again THJCC 2026 – Reverse files
Happy_Cat_Jail THJCC 2026 – Pwn files
IMAGE THJCC 2026 – Misc files
I_ate_something_bad_... THJCC 2026 Summer – Pwn files
I_use_arch_btw THJCC 2026 – Forensics files