Wunderpar

Smart Contract Audit Report

Audit Summary

Wunderpar 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.

Audit Findings

No findings were identified, though some centralized aspects are present.
Date: September 15th, 2023.

Contract Overview

  • 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.

Audit Results

Vulnerability Category Notes Result
Arbitrary Jump/Storage Write N/A PASS
Centralization of Control
  • Any Minter address can mint any number of tokens to any addresses 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.
WARNING
Compiler Issues N/A PASS
Delegate Call to Untrusted Contract N/A PASS
Dependence on Predictable Variables N/A PASS
Ether/Token Theft N/A PASS
Flash Loans N/A PASS
Front Running N/A PASS
Improper Events N/A PASS
Improper Authorization Scheme N/A PASS
Integer Over/Underflow N/A PASS
Logical Issues N/A PASS
Oracle Issues N/A PASS
Outdated Compiler Version N/A PASS
Race Conditions N/A PASS
Reentrancy N/A PASS
Signature Issues N/A PASS
Sybil Attack N/A PASS
Unbounded Loops N/A PASS
Unused Code N/A PASS
Overall Contract Safety   PASS

Inheritance Chart

Smart Contract Audit - Inheritance

Function Graph

Smart Contract Audit - Graph

Functions Overview


 ($) = 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

About SourceHat

SourceHat (formerly Solidity Finance - founded in 2020) has quickly grown to have one of the most experienced and well-equipped smart contract auditing teams in the industry. Our team has conducted 1300+ solidity smart contract audits covering all major project types and protocols, securing a total of over $50 billion U.S. dollars in on-chain value across 1500 projects!. Our firm is well-reputed in the community and is trusted as a top smart contract auditing company for the review of solidity code, no matter how complex. Our team of experienced solidity smart contract auditors performs audits for tokens, NFTs, crowdsales, marketplaces, gambling games, financial protocols, and more!

Contact us today to get a free quote for a smart contract audit of your project!

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.