CTF challenges & writeups

3995 challenges · browse all techniques

Challenge	CTF	Weight	Category	Has
atoms #use-after-free (uaf)	HITCON 2020	–	Misc	files wu 1
dual #heap-corruption	HITCON 2020	–	Misc	files wu 3
revenge_of_pwn #pwntools-abuse	HITCON 2020	–	Misc	files wu 1
telescope #unsafe-unlink	HITCON 2020	–	Misc	files wu 1
boredom #ret2win	HSCTF 2020	–	Misc	files wu 2
pwnagotchi #ret2libc	HSCTF 2020	–	Misc	files wu 3
studysim #tcache-poisoning	HSCTF 2020	–	Misc	files wu 1
treecache_alyx #use-after-free (uaf)	HSCTF 2020	–	Misc	files wu 1
secret-pwnhub-academy-rewards-club-2 #shellcode	Hack.lu 2020	87.94	Misc	files wu 2
merry_cemetery #wasm	HackTM 2020 Quals	24.02	Misc	files wu 1
trip_to_trick #file-vtable-hijack	HackTM 2020 Quals	24.02	Misc	files wu 1
twisty #stack-overflow	HackTM 2020 Quals	24.02	Misc	files wu 2
Almost #off-by-one	HacktivityCon 2020	21.86	Misc	files wu 1
Bacon #ret2dlresolve	HacktivityCon 2020	21.86	Misc	files wu 1
Bullseye #got-overwrite	HacktivityCon 2020	21.86	Misc	files wu 3
Mobile_One #android	HacktivityCon 2020	21.86	Misc	files wu 3
Pancakes #ret2win	HacktivityCon 2020	21.86	Misc	files wu 3
ShadowStuck #shadow-stack-overwrite	KipodAfterFree 2020	24.61	Misc	files wu 3
baffling_buffer_0 #stack-buffer-overflow	MetaCTF 2020	–	Misc	files wu 1
baffling_buffer_1 #ret2win	MetaCTF 2020	–	Misc	files wu 1
baffling_buffer_2 #ret2libc	MetaCTF 2020	–	Misc	files wu 1
dangerous #ret2win	NahamCon 2020	23.72	Misc	files wu 3
leet_haxor #format-string	NahamCon 2020	23.72	Misc	files wu 1
ripe_reader #stack-buffer-overflow	NahamCon 2020	23.72	Misc	files wu 2
saas #syscall-blacklist-bypass	NahamCon 2020	23.72	Misc	files wu 3
shifts_ahoy #shellcode-injection	NahamCon 2020	23.72	Misc	files wu 2
syrup #stack-pivot	NahamCon 2020	23.72	Misc	files wu 1
bf #off-by-one #cpp-string #arbitrary-read-write	RCTF 2020	–	Misc	files wu 1
mginx #stack-buffer-overflow #mips64 #shellcode	RCTF 2020	–	Misc	files wu 1
no_write #syscall-filter #strncmp-oracle #stack-pivot	RCTF 2020	–	Misc	files wu 1
note #negative-index #tcache-poisoning #malloc-hook #one-gadget	RCTF 2020	–	Misc	files wu 2
vm #custom-vm #missing-bounds-check #arbitrary-read-write	RCTF 2020	–	Misc	files wu 1
lazynote #fsop #file-structure	SECCON 2020 Quals	65.77	Misc	files wu 1
AdventureChain #stack-buffer-overflow #rop	Shakti 2020	25.00	Misc	files wu 1
ComputeShell #shellcode #stack-buffer-overflow	Shakti 2020	25.00	Misc	files wu 1
Reactor_GOT #format-string #got-overwrite #one-gadget	Shakti 2020	25.00	Misc	files wu 2
Florida_Forecaster #stack-buffer-overflow #rop #info-leak	SunshineCTF 2020	23.34	Misc	files wu 1
Lil_Chompy #use-after-free (uaf)#heap #arbitrary-read	SunshineCTF 2020	23.34	Misc	files wu 2
OOMG_SPACE #info-leak #memory-disclosure	SunshineCTF 2020	23.34	Misc	files wu 1
OOMG_SPACE2 #off-by-null #info-leak	SunshineCTF 2020	23.34	Misc	files wu 1

Challenges