CTF challenges & writeups

252 challenges in family ⊕ pwn:stack ✕ clear · browse all techniques

Challenge	CTF	Weight	Category	Has
inception #stack-overflow #rop #ret2csu #got-leak	ASIS 2018 Finals	55.00	Misc	files wu 3
bigboy #stack-variable-overwrite	CSAW 2018 Quals	30.23	Misc	files wu 3
doubletrouble #stack-buffer-overflow #float-encoding-shellcode #ascii-shellcode #canary-preserve	CSAW 2018 Quals	30.23	Misc	files wu 3
get_it #stack-buffer-overflow #ret2win	CSAW 2018 Quals	30.23	Misc	files wu 3
shell_code #stack-buffer-overflow #split-shellcode #jump-chaining	CSAW 2018 Quals	30.23	Misc	files wu 3
BuggyPWN #custom-vm-reversing #2d-memory-oob #stack-overflow #printable-shellcode	CTFZone 2018 Quals	23.92	Misc	files wu 2
lucky #prng-seed-overwrite #rand-prediction #buffer-overflow	Defcamp 2018 Quals	18.75	Misc	files wu 3
hitcon #buffer-overflow	HITCON 2018	–	Misc	files wu 1
babyheap #off-by-one #null-byte-poisoning #malloc-hook	RCTF 2018	–	Misc	files wu 3
stringer #off-by-one #double-free #mmap-chunk #fastbin-attack #malloc-hook	RCTF 2018	–	Misc	files wu 3
kindvm #custom-vm #stack-buffer-overflow	SECCON 2018 Quals	36.92	Misc	files wu 1
ezpz #buffer-overflow #ret2win #pie-bypass	WPICTF 2018	–	Misc	files wu 3
pwn02 #off-by-one #null-byte-poisoning #tcache #heap-overlap	WhiteHat 2018 Quals	–	Misc	files wu 3
Greetings_from_Santa #buffer-overflow #ret2win #system	X-MAS 2018	–	Misc	files wu 1
Random_Present #buffer-overflow #ret2plt #got-leak #ret2libc	X-MAS 2018	–	Misc	files wu 3
scv #stack-buffer-overflow #canary-leak #rop	CSAW 2017 Quals	24.61	Misc	files src wu 3
zone #heap-off-by-one #linked-list-overflow #got-overwrite	CSAW 2017 Quals	24.61	Misc	files src wu 3
babystack #format-string #stack-buffer-overflow	SECCON 2017 Quals	30.00	Misc	files wu 3
election #off-by-one #null-byte-poisoning #malloc-hook	SECCON 2017 Quals	30.00	Misc	files wu 3
The_Butterfly_effect #v8-off-by-one	Infobahn 2025	–	Pwn	files wu 1
Refreshments #off-by-one #fastbin-attack #unsorted-bin	StackSmash 2025	24.00	Pwn	files wu 1
limit #off-by-one #tcache-poisoning #overlapping-chunks	smileyCTF 2025	48.61	Pwn	files wu 1
runway1 #stack-overflow #ret2win	BuckeyeCTF 2024	50.91	Pwn	files wu 1
runway2 #stack-overflow #ret2win	BuckeyeCTF 2024	50.91	Pwn	files wu 1
runway3 #format-string-leak #canary-bypass #ret2win	BuckeyeCTF 2024	50.91	Pwn	files wu 1
n0tes-revenge #custom-allocator-exploitation	BSidesTLV 2023	35.00	Pwn	files wu 1
sea #padding-oracle #stack-overflow	Codegate 2023 Quals	–	Pwn	files wu 2
Classy #stack-buffer-overflow #scanf-overflow #privilege-variable-overwrite #c++	CyberSecurityRumble 2023 Quals	24.80	Pwn	files wu 1
mod_pwn #stack-overflow #apache-module	BSidesTLV 2022	23.94	Pwn	files wu 1
AsianParents #stack-buffer-overflow #fork-ipc #canary	Balsn 2022	53.42	Pwn	files wu 1
snake-oil #buffer-overflow	FE-CTF 2022	–	Pwn	files wu 1
TerminalOverdrive #buffer-overflow	HackPack 2022	35.11	Pwn	files wu 1
AttackOnCanary #canary-bruteforce	LakeCTF 2022 Quals	23.96	Pwn	files wu 1
porcosort #off-by-one-stack-overflow	LakeCTF 2022 Quals	23.96	Pwn	files wu 1
pcg #oob-index #stack-buffer-overflow #ret2libc #custom-image-parser	pingCTF 2022	24.29	Pwn	files wu 1
moving-signals #srop #buffer-overflow	0x41414141 2021	–	Pwn	files wu 3
secure-enclave #on-chain-secret-exposure #transaction-input-data-disclosure	0x41414141 2021	–	Crypto	files wu 1
masterc #master-canary-bypass #stack-canary	3kCTF 2021	24.14	Pwn	files wu 2
Pwnzoo #off-by-one #function-pointer-overwrite	BSidesSF 2021	23.94	Pwn	files wu 2
staff #uninitialized-memory #stack-leak	BuckeyeCTF 2021	24.81	Pwn	files wu 3

Challenges