Change implementation owner to address(1) from address(0) #44
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Closing out -- // `returndatasize()` will be `0x20` upon success, and `0x00` otherwise.
if iszero(or(iszero(returndatasize()), xor(signer, mload(t)))) {
isValid := 1
mstore(0x60, 0) // Restore the zero slot.
mstore(0x40, m) // Restore the free memory pointer.
break
} |
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This Code4rena finding correctly points out that the implementation being owned by
address(0)might expose attack surface area. Though we cannot find a way to exploit this currently, it's trivial to change the implementations owner toaddress(1)to completely eliminate this vector.