$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
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Must have
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360 challenges · browse all techniques

Challenge CTF Weight Category Has
vecc
#uninitialized-variable
 DownUnderCTF 2020 24.44 Misc files wu 1
zombie
#use-after-free (uaf)
 DownUnderCTF 2020 24.44 Misc files wu 1
Speak_Friend_and_Enter DownUnderCTF 2025 91.66 Crypto files src wu 1
Theyre_Making_Decoys DownUnderCTF 2024 68.04 OSINT files wu 1
cityviews DownUnderCTF 2024 68.04 OSINT files wu 1
hah_got_em DownUnderCTF 2024 68.04 Web files wu 1
parrot_the_emu DownUnderCTF 2024 68.04 Web files wu 2
tldr_please_summarise DownUnderCTF 2024 68.04 Misc files wu 2
Another_Please DownUnderCTF 2023 46.63 Blockchain files wu 1
Eight_Five_Four_Five DownUnderCTF 2023 46.63 Blockchain files wu 1
Immutable DownUnderCTF 2023 46.63 Blockchain files wu 1
Monkeing_Around DownUnderCTF 2023 46.63 Blockchain files wu 1
cgi_fridays DownUnderCTF 2023 46.63 Web files wu 1
flag_art DownUnderCTF 2023 46.63 Crypto files wu 1
SolveMe DownUnderCTF 2022 – Blockchain files wu 1
dyslexxec DownUnderCTF 2022 – Web files wu 1
TotallySecureDapp UACTF 2022 – Web files wu 2
connect_the_dots DownUnderCTF 2021 – Reverse files wu 1
BLAST DownUnderCTF 2025 91.66 Pwn files
BeepBeep DownUnderCTF 2025 91.66 Misc files
Fishy_Website DownUnderCTF 2025 91.66 Misc files
Forensics_Golf DownUnderCTF 2025 91.66 Misc files
Look_at_all_those_chickensi DownUnderCTF 2025 91.66 OSINT files
Love_GranniE DownUnderCTF 2025 91.66 OSINT files
Mary_had_a_little_lambda DownUnderCTF 2025 91.66 Misc files
More_Request_Handling DownUnderCTF 2025 91.66 Web files
Mysterious_Vault DownUnderCTF 2025 91.66 Pwn files
Rolling_Around DownUnderCTF 2025 91.66 Pwn files
SH_RSA DownUnderCTF 2025 91.66 Crypto files src
Sweet_Treat DownUnderCTF 2025 91.66 Web files
SwiftPasswordManager_ClickMe DownUnderCTF 2025 91.66 Reverse files
SwiftPasswordManager_LoadMe DownUnderCTF 2025 91.66 Reverse files
YoDawg DownUnderCTF 2025 91.66 Misc files
Zer0C00l DownUnderCTF 2025 91.66 OSINT files
ai DownUnderCTF 2025 91.66 Misc files
backdoor DownUnderCTF 2025 91.66 Pwn files
beginner DownUnderCTF 2025 91.66 Misc files
bilingual DownUnderCTF 2025 91.66 Reverse files
certvalidated DownUnderCTF 2025 91.66 Crypto files
corporate-cliche DownUnderCTF 2025 91.66 Pwn files src