$ ctf42

#shellcode CTF challenges

45 CTF challenges using shellcode from 32 CTFs (2018–2026), 45 with writeups. Mostly Pwn (56%) and Misc (42%).

Pwn · 25 Misc · 19 Reverse · 1

Often combined with

#stack-buffer-overflow 5 #stack-pivot 3 #srop 3 #orw 3 #seccomp-bypass 2 #arbitrary-write 2 #restricted-charset 2 #seccomp 2 #mprotect 2 #off-by-one 1 #rbp-lsb-overwrite 1 #jmp-into-literal 1 #jit-bytecode-verifier-executor-mismatch 1 #rop 1 #elf-patching 1

Challenges

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Challenge CTF Weight Category Has
odd_shell UIUCTF 2022 – Pwn files src wu 3
PPowerenCryption UTCTF 2019 – Misc files wu 3
shellcoder RCTF 2019 – Misc files wu 3
sloader TSG 2023 – Pwn files wu 3
yunospace hxp 2018 42.00 Misc files wu 3
nasm_kit zer0pts 2021 24.56 Pwn files wu 3
sandybox PlaidCTF 2020 93.15 Pwn files wu 3
random_vault Pwn2Win 2019 43.00 Misc files wu 3
not_beginners_stack zer0pts 2021 24.56 Pwn files wu 3
blox2 CSAW 2020 Quals 59.00 Misc files wu 2
More_than_shellcoding VULNCON 2021 – Pwn files wu 2
BabyPwn UTCTF 2019 – Misc files wu 2
Not_That_Simple RaRCTF 2021 24.53 Pwn files wu 2
ABJudge De1CTF 2019 24.28 Misc files wu 2
nemoji hxp 2020 94.00 Pwn files wu 2
secret-pwnhub-academy-rewards-club-2 Hack.lu 2020 87.94 Misc files wu 2
uc_masteeer 0CTF 2021 Quals – Pwn files wu 1
syscall_kit zer0pts 2020 24.56 Misc files wu 1
baby-pwn CyberSecurityRumble 2020 28.00 Misc files wu 1
Mini-Game SPbCTF 2021 Quals – Misc files wu 1
mginx RCTF 2020 – Misc files wu 1
syscall_interface RCTF 2019 – Misc files wu 1
SecPwn Balsn 2019 25.00 Misc files wu 1
ComputeShell Shakti 2020 25.00 Misc files wu 1
beginners_pwn TSG 2020 – Misc files wu 1
Shellcode_Golf TAMUctf 2021 – Pwn files wu 1
coolcode SCTF 2020 – Misc files wu 1
Elftek_Secure_Execution_Engine X-MAS 2021 – Pwn files wu 1
Soulcode DanteCTF 2023 24.44 Pwn files wu 1
contrived-shellcode TAMUctf 2023 – Pwn files wu 1
NX_Oopsie TAMUctf 2021 – Pwn files wu 1
Shorty_level35 FE-CTF 2023 – Misc files wu 1
Mind_Blown HackPack 2021 24.31 Pwn files wu 1
gelcode HSCTF 2021 – Pwn files wu 1
Syscalls UIUCTF 2024 – Pwn files wu 1
Shellcraft Securinets 2022 Quals 50.11 Pwn files wu 1
riscy-stack_Userspace CyberSecurityRumble 2023 Quals 24.80 Pwn files wu 1
Cake 1337UP 2022 22.49 Pwn files wu 1
BrainJIT zer0pts 2023 52.62 Pwn files wu 1
jit-calc RITSEC 2019 – Misc files wu 1