The Deployer of GovernanceTimelock Gets Privileged Access to the System.
The `GovernanceTimelock` contract is responsible for Roles Based Access Control management and checks in the Lybra Protocol. It offers two functions specifically that check if an address has the required role - `checkRole` and checkOnlyRole:\\n```\\nfunction checkRole(bytes32 role, address \\_sender) public view returns(bool){\\n return hasRole(role, \\_sender) || hasRole(DAO, \\_sender);\\n}\\n\\nfunction checkOnlyRole(bytes32 role, address \\_sender) public view returns(bool){\\n return hasRole(role, \\_sender);\\n}\\n```\\n\\nIn `checkRole`, the contract also lets an address with the role `DAO` bypass the check altogether, making it a powerful role.\\nFor initial role management, when the `GovernanceTimelock` contract gets deployed, its constructor logic initializes a few roles, assigns relevant admin roles, and, notably, assigns the `DAO` role to the contract, and the `DAO` and the `GOV` role to the deployer.\\n```\\nconstructor(uint256 minDelay, address[] memory proposers, address[] memory executors, address admin) TimelockController(minDelay, proposers, executors, admin) {\\n \\n \\_setRoleAdmin(DAO, GOV);\\n \\_setRoleAdmin(TIMELOCK, GOV);\\n \\_setRoleAdmin(ADMIN, GOV);\\n \\_grantRole(DAO, address(this));\\n \\_grantRole(DAO, msg.sender);\\n \\_grantRole(GOV, msg.sender);\\n}\\n```\\n\\nThe assignment of such powerful roles to a single private key with the deployer has inherent risks. Specifically in our case, the `DAO` role alone as we saw may bypass many checks within the Lybra Protocol, and the `GOV` role even has role management privileges.\\nHowever, it does make sense to assign such roles at the beginning of the deployment to finish initialization and assign the rest of the roles. One could argue that having access to the `DAO` role in the early stages of the system's life could allow for quick disaster recovery in the event of incidents as well. Though, it is still dangerous to hold privileges for such a system in a single address as we have seen over the last years in security incidents that have to do with compromised keys.
While redesigning the deployment process to account for a lesser-privileged deployer would be ideal, the Lybra Finance team should at least transfer ownership as soon as the deployment is complete to minimize compromised private key risk.
```\\nfunction checkRole(bytes32 role, address \\_sender) public view returns(bool){\\n return hasRole(role, \\_sender) || hasRole(DAO, \\_sender);\\n}\\n\\nfunction checkOnlyRole(bytes32 role, address \\_sender) public view returns(bool){\\n return hasRole(role, \\_sender);\\n}\\n```\\n