Submission Details
Severity:
Front-Running Attack in Move Commitment
Summary: Players can front-run their opponent's reveal transaction to gain advantage.
Details: A player could watch the mempool for their opponent's reveal transaction and front-run it with their own reveal that beats the opponent's move.
Impact: Allows malicious players to always win games by waiting for opponent's reveal and submitting a winning counter-move.
Recommendation: Implement a two-phase reveal process where:
Both players must reveal a commitment hash first
Only after both commitments are on-chain can players reveal their actual moves
Rewards breakdown
nSLOC
349This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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