CTF challenges & writeups

20 challenges in family ⊕ pwn:race-condition ✕ clear · browse all techniques

Challenge	CTF	Weight	Category	Has
encrypted_chat #many-time-pad #keystream-reuse #race-condition	TPCTF 2025	–	Crypto	files wu 1
b_locked #race-condition #captcha-bypass	snakeCTF 2025 Quals	36.65	Web	files wu 2
Quiz #race-condition #concurrent-requests	1337UP 2024	–	Mobile	files wu 1
This_message_will_self_destruct_in... #race-condition	LINE 2024	–	Web	files wu 1
Funny_lfr #lfi (local-file-inclusion)#race-condition	SekaiCTF 2024	36.96	Web	files wu 1
Crabby_Clicker #http-pipelining #race-condition	UMassCTF 2024	43.10	Web	files wu 1
kowaiiVm #jit-toctou #rop	bi0sCTF 2024	79.83	Pwn	files wu 1
TaaS #tar-symlink #race-condition	PatriotCTF 2022	24.52	Web	files wu 1
KrampusGifts #race-condition #tcache #heap-exploitation #multithreading	X-MAS 2022	–	Pwn	files wu 1
krypto #kernel-exploit #toctou-race #arbitrary-write #modprobe-path-overwrite #infoleak	CSAW 2021 Quals	20.54	Pwn	files wu 1
hashbrown #kernel #race-condition #use-after-free (uaf)#fg-kaslr-bypass	DiceCTF 2021	24.82	Pwn	files wu 1
NodeNB #race-condition	Hack.lu 2021	94.48	Web	files wu 1
Wowza #race-condition #prototype-pollution #ssrf	PlaidCTF 2021	99.64	Web	files wu 2
beginners_web_2021 #race-condition	TSG 2021	–	Web	files wu 1
counter #race-condition	hxp 2021	99.41	Web	files wu 1
difference-check #ssrf-toctou	idekCTF 2021	24.56	Web	files wu 1
Race #kernel #race-condition #use-after-free (uaf)#slab-leak	De1CTF 2019	24.28	Misc	files wu 1
pcpu #race-condition #vm	Codegate 2023 Quals	–	Pwn	files wu 1
cfgo-LuckyMaze #race-condition #golang-pwn #stack-overflow	WMCTF 2020	–	Misc	files wu 1
lost #race-condition	InCTF 2018	25.00	Misc	files wu 1

Challenges