Submission Details
Severity:
Weak PRNG in `ChoosingRam.sol`
Summary
--> uint256 random =
uint256(keccak256(abi.encodePacked(block.timestamp, block.prevrandao, msg.sender))) % 2;
--> uint256 random = uint256(keccak256(abi.encodePacked(block.timestamp, block.prevrandao))) % ramNFT.tokenCounter();
Impact
Anyone can manipulate the random number for their benefit
Tools Used
Manual Review , slither
Recommendations
Use ChainLink VRF
Updates
Lead Judging Commences
bube over 1 year ago
Submission Judgement Published Reason: Too generic
Assigned finding tags:
Weak randomness in `ChoosingRam::increaseValuesOfParticipants`
Rewards breakdown
nSLOC
218This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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