Submission Details
Severity:
Storage Collision between Proxy in `Proxy.sol` and `distributor` Implementation
Vulnerability Details
When you implement proxies, logic and implementation share the same storage layout. In order to avoid storage conflicts EIP1967 was proposed.(https://eips.ethereum.org/EIPS/eip-1967) The idea is to set proxy variables at fixed positions (like impl and admin).
Impact
Storage collision because of lack of EIP1967 could cause conflicts and override some variables
contract Proxy {
// implementation address
address private immutable _implementation;
Tools Used
Manual Code Review
Recommendations
Consider using EIP1967 to avoid Storage Collision
Prize pool breakdown
Total prize
15,000 USDC
nSLOC
19477 USDC / LOC
14,000 USDC
1,000 USDC
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