Smart Contract Audit Report
Wunderpar is building a new ERC-20 token.
For this audit, we reviewed the project team's Wunder contract at 1f3d5793bb081b260147802e55d7aa154cc9deab on the team's GitHub repository.
No findings were identified, though some centralized aspects are present.
Date: September 15th, 2023.
- The total supply of the token is set to zero upon deployment.
- The owner can grant/revoke the Minter role, Burner role, and Pauser role for any address at any time.
- Any Minter address can mint any number of tokens to any addresses at any time.
- Any Burner address can burn their own tokens to reduce the total supply at any time.
- Any Pauser address can pause/unpause the contract at any time which disables all transfers, mints, and burns from being able to occur.
- Any user can send any number of tokens to up to 256 addresses per transaction at any time.
- As the contract is implemented with Solidity v0.8.x, it is protected from overflows/underflows.
- The contract complies with the ERC-20 token standard.
|Arbitrary Jump/Storage Write||N/A||PASS|
|Centralization of Control||
|Delegate Call to Untrusted Contract||N/A||PASS|
|Dependence on Predictable Variables||N/A||PASS|
|Improper Authorization Scheme||N/A||PASS|
|Outdated Compiler Version||N/A||PASS|
|Overall Contract Safety||PASS|
($) = payable function # = non-constant function Int = Internal Ext = External Pub = Public + [Int] IAccessControl - [Ext] hasRole - [Ext] getRoleAdmin - [Ext] grantRole # - [Ext] revokeRole # - [Ext] renounceRole # + Context - [Int] _msgSender - [Int] _msgData + [Lib] Math - [Int] max - [Int] min - [Int] average - [Int] ceilDiv - [Int] mulDiv - [Int] mulDiv - [Int] sqrt - [Int] sqrt - [Int] log2 - [Int] log2 - [Int] log10 - [Int] log10 - [Int] log256 - [Int] log256 + [Lib] SignedMath - [Int] max - [Int] min - [Int] average - [Int] abs + [Lib] Strings - [Int] toString - [Int] toString - [Int] toHexString - [Int] toHexString - [Int] toHexString - [Int] equal + [Int] IERC165 - [Ext] supportsInterface + ERC165 (IERC165) - [Pub] supportsInterface + AccessControl (Context, IAccessControl, ERC165) - [Pub] supportsInterface - [Pub] hasRole - [Int] _checkRole - [Int] _checkRole - [Pub] getRoleAdmin - [Pub] grantRole # - modifiers: onlyRole - [Pub] revokeRole # - modifiers: onlyRole - [Pub] renounceRole # - [Int] _setupRole # - [Int] _setRoleAdmin # - [Int] _grantRole # - [Int] _revokeRole # + [Int] IAccessControlDefaultAdminRules (IAccessControl) - [Ext] defaultAdmin - [Ext] pendingDefaultAdmin - [Ext] defaultAdminDelay - [Ext] pendingDefaultAdminDelay - [Ext] beginDefaultAdminTransfer # - [Ext] cancelDefaultAdminTransfer # - [Ext] acceptDefaultAdminTransfer # - [Ext] changeDefaultAdminDelay # - [Ext] rollbackDefaultAdminDelay # - [Ext] defaultAdminDelayIncreaseWait + [Lib] SafeCast - [Int] toUint248 - [Int] toUint240 - [Int] toUint232 - [Int] toUint224 - [Int] toUint216 - [Int] toUint208 - [Int] toUint200 - [Int] toUint192 - [Int] toUint184 - [Int] toUint176 - [Int] toUint168 - [Int] toUint160 - [Int] toUint152 - [Int] toUint144 - [Int] toUint136 - [Int] toUint128 - [Int] toUint120 - [Int] toUint112 - [Int] toUint104 - [Int] toUint96 - [Int] toUint88 - [Int] toUint80 - [Int] toUint72 - [Int] toUint64 - [Int] toUint56 - [Int] toUint48 - [Int] toUint40 - [Int] toUint32 - [Int] toUint24 - [Int] toUint16 - [Int] toUint8 - [Int] toUint256 - [Int] toInt248 - [Int] toInt240 - [Int] toInt232 - [Int] toInt224 - [Int] toInt216 - [Int] toInt208 - [Int] toInt200 - [Int] toInt192 - [Int] toInt184 - [Int] toInt176 - [Int] toInt168 - [Int] toInt160 - [Int] toInt152 - [Int] toInt144 - [Int] toInt136 - [Int] toInt128 - [Int] toInt120 - [Int] toInt112 - [Int] toInt104 - [Int] toInt96 - [Int] toInt88 - [Int] toInt80 - [Int] toInt72 - [Int] toInt64 - [Int] toInt56 - [Int] toInt48 - [Int] toInt40 - [Int] toInt32 - [Int] toInt24 - [Int] toInt16 - [Int] toInt8 - [Int] toInt256 + [Int] IERC5313 - [Ext] owner + AccessControlDefaultAdminRules (IAccessControlDefaultAdminRules, IERC5313, AccessControl) - [Pub]
# - [Pub] supportsInterface - [Pub] owner - [Pub] grantRole # - [Pub] revokeRole # - [Pub] renounceRole # - [Int] _grantRole # - [Int] _revokeRole # - [Int] _setRoleAdmin # - [Pub] defaultAdmin - [Pub] pendingDefaultAdmin - [Pub] defaultAdminDelay - [Pub] pendingDefaultAdminDelay - [Pub] defaultAdminDelayIncreaseWait - [Pub] beginDefaultAdminTransfer # - modifiers: onlyRole - [Int] _beginDefaultAdminTransfer # - [Pub] cancelDefaultAdminTransfer # - modifiers: onlyRole - [Int] _cancelDefaultAdminTransfer # - [Pub] acceptDefaultAdminTransfer # - [Int] _acceptDefaultAdminTransfer # - [Pub] changeDefaultAdminDelay # - modifiers: onlyRole - [Int] _changeDefaultAdminDelay # - [Pub] rollbackDefaultAdminDelay # - modifiers: onlyRole - [Int] _rollbackDefaultAdminDelay # - [Int] _delayChangeWait - [Prv] _setPendingDefaultAdmin # - [Prv] _setPendingDelay # - [Prv] _isScheduleSet - [Prv] _hasSchedulePassed + Pausable (Context) - [Pub] # - [Pub] paused - [Int] _requireNotPaused - [Int] _requirePaused - [Int] _pause # - modifiers: whenNotPaused - [Int] _unpause # - modifiers: whenPaused + [Int] IERC20 - [Ext] totalSupply - [Ext] balanceOf - [Ext] transfer # - [Ext] allowance - [Ext] approve # - [Ext] transferFrom # + [Int] IERC20Metadata (IERC20) - [Ext] name - [Ext] symbol - [Ext] decimals + ERC20 (Context, IERC20, IERC20Metadata) - [Pub] # - [Pub] name - [Pub] symbol - [Pub] decimals - [Pub] totalSupply - [Pub] balanceOf - [Pub] transfer # - [Pub] allowance - [Pub] approve # - [Pub] transferFrom # - [Pub] increaseAllowance # - [Pub] decreaseAllowance # - [Int] _transfer # - [Int] _mint # - [Int] _burn # - [Int] _approve # - [Int] _spendAllowance # - [Int] _beforeTokenTransfer # - [Int] _afterTokenTransfer # + [Int] IERC20Wunder (IERC20) - [Ext] batchTransfer # - [Ext] batchMint # + Wunder (ERC20, AccessControlDefaultAdminRules, Pausable, IERC20Wunder) - [Pub] # - modifiers: ERC20,AccessControlDefaultAdminRules - [Pub] burn # - modifiers: whenNotPaused,onlyRole - [Pub] pause # - modifiers: onlyRole - [Pub] unpause # - modifiers: onlyRole - [Pub] transfer # - modifiers: whenNotPaused - [Pub] transferFrom # - modifiers: whenNotPaused - [Ext] batchTransfer # - modifiers: whenNotPaused - [Ext] batchMint # - modifiers: whenNotPaused,onlyRole - [Pub] supportsInterface
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What is a SourceHat Audit?
Typically, a smart contract audit is a comprehensive review process designed to discover logical errors, security vulnerabilities, and optimization opportunities within code. A SourceHat Audit takes this a step further by verifying economic logic to ensure the stability of smart contracts and highlighting privileged functionality to create a report that is easy to understand for developers and community members alike.
How Do I Interpret the Findings?
Each of our Findings will be labeled with a Severity level. We always recommend the team resolve High, Medium, and Low severity findings prior to deploying the code to the mainnet. Here is a breakdown on what each Severity level means for the project:
- High severity indicates that the issue puts a large number of users' funds at risk and has a high probability of exploitation, or the smart contract contains serious logical issues which can prevent the code from operating as intended.
- Medium severity issues are those which place at least some users' funds at risk and has a medium to high probability of exploitation.
- Low severity issues have a relatively minor risk association; these issues have a low probability of occurring or may have a minimal impact.
- Informational issues pose no immediate risk, but inform the project team of opportunities for gas optimizations and following smart contract security best practices.