c4-bot-1 commented 5 months ago

Lines of code

https://github.com/code-423n4/2024-03-pooltogether/blob/main/pt-v5-vault/src/PrizeVaultFactory.sol#L66

Vulnerability details

Impact

Due to security purposes, a variable (uint256) should exist as a counter for total number of vaults. It will be incremented when deployVault() is called and its value will be returned directly when totalVaults() will be called.

Proof of Concept

Tools Used

Manual review

Recommended Mitigation Steps

this can be used

uint256 vaultCounter = 0;

function deployVault(
      params
    ) external returns (PrizeVault) {
       ...
        allVaults.push(_vault);
        vaultCounter++;
       ...
    }

function totalVaults() external view returns (uint256) {
        return vaultCounter;
// this function also saves gas as we are reading the value from a state variable
    }