Smart Contract Attack Methodology

When attacking target contract, we can create an attack contract which loads the target contract and abuse it.

Create an Attack Contract

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

// Define interface for victim contract
interface IVictim {
    // Set the Victim contract functions
    function example1() external;
    function example2(uint) external;
}

// Define Attack contract to compromise the victim contract
contract Attack {
    IVictim public victim;

    constructor(address _victimAddress) {
        // Initialize Victim contract (interface)
        victim = IVictim(_victimAddress);
    }

    // Create a function to be used for attacking the victim contract
    function attack() public {
        victim.example1();
        victim.example2(1);
    }
}