What Ethereum Smart Contract Hacking Looks Like

In this video you can see me working over 10h on hacking an Ethereum smart contract. The attack was done on a private chain, so no actual Ethereum users have been affected. This was a challenge called Montagy from the Real World CTF 2019 competition. Even though this was part of a competition, the methodology and technologies used are the tools used in reallife Ethereum hacking as well. More Ethereum hacking: Ethereum Smart Contract Hacking, 1 Real World CTF 2018: Jump Oriented Programming: Ethereum Smart Contract, 2 Real World CTF 2018: Ethereum Smart Contract Backdoored Using Malicious Constructor: 00:00:00 Backstory 00:03:58 Smart Contract Challenge Overview 00:20:17 Blockchain Transaction Investigation 00:22:13 Rough Plan Research Setup 00:34:27 Looking more into the Contracts 00:41:18 Debugging with remix 01:08:43 What we learned so far 01:09: