$ ctf42

Challenges

Category
Difficulty
CTFtime weight
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Higher weight ≈ harder, more prestigious event.
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35 challenges · browse all techniques

Challenge CTF Weight Category Has
My_First_C_Program
#deobfuscation
 DownUnderCTF 2023 46.63 Misc files wu 1
my-first-echo-server
#format-string
 DownUnderCTF 2020 24.44 Misc files wu 3
return-to-what
#ret2libc
 DownUnderCTF 2020 24.44 Misc files wu 3
return-to-whats-revenge
#orw
 DownUnderCTF 2020 24.44 Misc files wu 3
shellthis
#ret2win
 DownUnderCTF 2020 24.44 Misc files src wu 3
vecc
#uninitialized-variable
 DownUnderCTF 2020 24.44 Misc files wu 1
zombie
#use-after-free (uaf)
 DownUnderCTF 2020 24.44 Misc files wu 1
tldr_please_summarise DownUnderCTF 2024 68.04 Misc files wu 2
BeepBeep DownUnderCTF 2025 91.66 Misc files
Fishy_Website DownUnderCTF 2025 91.66 Misc files
Forensics_Golf DownUnderCTF 2025 91.66 Misc files
Mary_had_a_little_lambda DownUnderCTF 2025 91.66 Misc files
YoDawg DownUnderCTF 2025 91.66 Misc files
ai DownUnderCTF 2025 91.66 Misc files
beginner DownUnderCTF 2025 91.66 Misc files
dualzip DownUnderCTF 2025 91.66 Misc files
scrapbooking DownUnderCTF 2025 91.66 Misc files
DNAdecay DownUnderCTF 2024 68.04 Misc files
Intercepted_Transmissions DownUnderCTF 2024 68.04 Misc files src
Wacky_Recipe DownUnderCTF 2024 68.04 Misc files src
WebSocket_VPN DownUnderCTF 2024 68.04 Misc files
pkijs_eq DownUnderCTF 2024 68.04 Misc files
pkijs_lt DownUnderCTF 2024 68.04 Misc files
the_other_minimal_php DownUnderCTF 2024 68.04 Misc files
Needle_In_IAM DownUnderCTF 2023 46.63 Misc files
Smart_Calculator DownUnderCTF 2023 46.63 Misc files
Welcome_to_DUCTF DownUnderCTF 2023 46.63 Misc files
baby_ruby DownUnderCTF 2023 46.63 Misc files
blinkybill DownUnderCTF 2023 46.63 Misc files
daas DownUnderCTF 2023 46.63 Misc files
impossible DownUnderCTF 2023 46.63 Misc files
mini_dns_server DownUnderCTF 2023 46.63 Misc files
real_baby_ruby DownUnderCTF 2023 46.63 Misc files
cloud DownUnderCTF 2021 – Misc files
pwn-or-web DownUnderCTF 2020 24.44 Misc files