smartbugs-curated/dataset/unchecked_low_level_calls/lotto.sol

30 lines
648 B
Solidity

/*
* @source: https://github.com/sigp/solidity-security-blog
* @author: Suhabe Bugrara
* @vulnerable_at_lines: 20,27
*/
pragma solidity ^0.4.18;
contract Lotto {
bool public payedOut = false;
address public winner;
uint public winAmount;
// ... extra functionality here
function sendToWinner() public {
require(!payedOut);
// <yes> <report> UNCHECKED_LL_CALLS
winner.send(winAmount);
payedOut = true;
}
function withdrawLeftOver() public {
require(payedOut);
// <yes> <report> UNCHECKED_LL_CALLS
msg.sender.send(this.balance);
}
}