$ ctf42

Challenges

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

Challenge CTF Weight Category Has
weirdcaml
#reversing#ocaml
 UIUCTF 2025 – Reverse files wu 1
Lost_Canary
#stack-buffer-overflow#canary-bypass
 UIUCTF 2024 – Reverse files wu 1
geoguesser
#reversing#prng#janet
 UIUCTF 2023 – Reverse files wu 2
pwnykey
#keygen#reversing
 UIUCTF 2023 – Reverse files wu 2
vmwhere1
#reversing#vm
 UIUCTF 2023 – Reverse files wu 3
vmwhere2
#reversing#vm
 UIUCTF 2023 – Reverse files wu 3
hvhpgssynt
#rot13
 UIUCTF 2021 – Reverse files wu 3
ropfuscated
#rop-obfuscation#reversing
 UIUCTF 2021 – Reverse files wu 1
GODMODE_999 UIUCTF 2026 – Reverse files wu 1
Veil_of_Evernight UIUCTF 2026 – Reverse files wu 1
glyphs UIUCTF 2026 – Reverse files wu 1
vector_cache UIUCTF 2026 – Reverse files wu 1
Summarize UIUCTF 2024 – Reverse files wu 1
Fast_Calculator UIUCTF 2023 – Reverse files src wu 2
Prime_Extravaganza UIUCTF 2021 – Reverse files wu 1
Tedious UIUCTF 2021 – Reverse files wu 3
signals UIUCTF 2021 – Reverse files wu 3
Behind_the_Curtain UIUCTF 2026 – Reverse files
ELF_Capsule UIUCTF 2025 – Reverse files
Launch_Sequence UIUCTF 2025 – Reverse files
blazing_fast UIUCTF 2025 – Reverse files
damaged_SoC UIUCTF 2025 – Reverse files
flag_checker UIUCTF 2025 – Reverse files
Goose_Chase UIUCTF 2024 – Reverse files
Pwnymaps UIUCTF 2024 – Reverse files
Time_Travel UIUCTF 2024 – Reverse files
Wild_Goose_Chase UIUCTF 2024 – Reverse files
tooooo_fancy UIUCTF 2024 – Reverse files
CPSC UIUCTF 2022 – Reverse files
Library_of_Babel UIUCTF 2022 – Reverse files
Pierated Art UIUCTF 2022 – Reverse files src
Reject_to_Inject UIUCTF 2022 – Reverse files
VastCornfields UIUCTF 2022 – Reverse files
revop UIUCTF 2022 – Reverse files
pawnfish UIUCTF 2021 – Reverse files
plugin UIUCTF 2021 – Reverse files
smorgas_bored UIUCTF 2021 – Reverse files
speakeasy UIUCTF 2021 – Reverse files
vaudeville UIUCTF 2021 – Reverse files