$ ctf42

Challenges

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

Challenge CTF Weight Category Has
deception
#ethereum-storage-read#private-variable-exposure
 CrewCTF 2023 20.33 Blockchain files wu 3
infinite
#smart-contract#token-economy-logic-flaw
 CrewCTF 2023 20.33 Blockchain files wu 3
positive
#integer-overflow#signed-integer-overflow
 CrewCTF 2023 20.33 Blockchain files wu 3
MixNTwist CrewCTF 2025 38.93 Blockchain files
breithorn CrewCTF 2025 38.93 Blockchain files
Lightbook CrewCTF 2024 26.89 Blockchain files
Tree CrewCTF 2024 26.89 Blockchain files