Jump Oriented Programming: Ethereum Smart Contract #2 – Real World CTF 2018

Jump Oriented Programming: Ethereum Smart Contract #2 – Real World CTF 2018

In the first video I talked about how I approached this challenge and some of the thoughts andideas I had.I’d like to emphasize again that I worked on this for both days of the CTF, so I cannotinclude every small detail and struggle I had, but I hope I showed the important steps.At some point […]

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RESTAURANTE BITCOIN

RESTAURANTE BITCOIN

I know what I want.But I didn’t see the prices in the menu.We only work with bitcoins here, sir.Wow! Bitcoins? How modern!For example, how much is the chorizo steak?-Depends on how you want it. -Medium-well.The medium-well chorizo steak costs 0,003 bitcoins.-And medium? -It’s 0,5 bitcoins.-So medium-well then. -Perfect.One Medium-well chorizo steak. 1 bitcoin.What? But you […]

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RESTAURANTE BITCOIN

I know what I want.But I didn’t see the prices in the menu.We only work with bitcoins here, sir.Wow! Bitcoins? How modern!For example, how much is the chorizo steak?-Depends on how you want it. -Medium-well.The medium-well chorizo steak costs 0,003 bitcoins.-And medium? -It’s 0,5 bitcoins.-So medium-well then. -Perfect.One Medium-well chorizo steak. 1 bitcoin.What? But you […]

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RESTAURANTE BITCOIN

I know what I want.But I didn’t see the prices in the menu.We only work with bitcoins here, sir.Wow! Bitcoins? How modern!For example, how much is the chorizo steak?-Depends on how you want it. -Medium-well.The medium-well chorizo steak costs 0,003 bitcoins.-And medium? -It’s 0,5 bitcoins.-So medium-well then. -Perfect.One Medium-well chorizo steak. 1 bitcoin.What? But you […]

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Ethereum Smart Contract Backdoored Using Malicious Constructor

Ethereum Smart Contract Backdoored Using Malicious Constructor

In this video I want to specifically talk about the interesting backdoor technique thatwas used in the Acoraida Monica smart contract, which was a CTF challenge from the Real WorldCTF finals.I have already created two videos where I go over my attempts at solving the challengeand then eventually walk through the solution.However I did not […]

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