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Outdated Compiler Version N/A PASS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

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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.