$ ctf42

Pwn CTF challenges

3,926 Pwn CTF challenges from 382 CTFs (2011–2026), 1,025 with writeups.

Top pwn techniques

#stack-buffer-overflow 95 #format-string 88 #rop 76 #use-after-free 56 #ret2win 55 #shellcode 48 #ret2libc 37 #heap 35 #heap-overflow 34 #tcache-poisoning 29 #got-overwrite 29 #stack-pivot 25 #buffer-overflow 23 #heap-exploitation 21 #seccomp 19

Challenges

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Challenge CTF Weight Has
secure_service_monitor BSidesCanberra 2021 – files
shared_knote BSidesAhmedabad 2021 25.00 files
slow-spn L3HCTF 2021 22.50 files
spn L3HCTF 2021 22.50 files
stdout 3kCTF 2021 24.14 files
stickystacks angstromCTF 2021 – files
suscall BSidesNoida 2021 24.46 files
syscall_me_maybe ImaginaryCTF 2021 – files
tiktok-RPI UMDCTF 2021 – files
two_compliment MetaCTF 2021 – files
uml HITCON 2021 – files
vec KillerQueen 2021 21.14 files
vul_service L3HCTF 2021 22.50 files
wallstreet angstromCTF 2021 – files
warmup BSidesNoida 2021 24.46 files
worm CircleCityCon 2021 25.00 files
write_as_a_service BSidesAhmedabad 2021 25.00 files
writeead NahamCon 2021 24.98 files
wrong_location darkCON 2021 24.06 files
wyze_guy K3RN3LCTF 2021 24.37 files
zipread Chaff 2021 – files
Applicative CSAW 2020 Quals 59.00 files src
BINARY EXPLOITATION - 500 - ROP HKCERT 2020 – files src
Deja_Vu angstromCTF 2020 – files
DoItTryIt 0CTF 2020 Quals – files
Guy de Bois CCSC CTF 2020 – files src
fakeroot-gg hxp 2020 94.00 files
flash-2 0CTF 2020 Quals – files
ipppc PlaidCTF 2020 93.15 files
one_line_js 0CTF 2020 Quals – files
ww 0CTF 2020 Quals – files
Forgot BackdoorCTF 2019 56.00 files src
Over_My_Brain angstromCTF 2019 – files
Pie_Shop angstromCTF 2019 – files
Server angstromCTF 2019 – files
Weeb_Hunting angstromCTF 2019 – files
scanner 0CTF 2019 Quals – files
Bank_Roppery angstromCTF 2018 – files
EmojiDB PlaidCTF 2018 90.83 files
Free Note 0CTF 2018 Quals – files