Space Token
Smart Contract Audit Report
Audit Summary
Space Token is a new BEP-20 token on the Binance Smart Chain.
For this audit, we reviewed the project team's SpaceToken contract at 0x9e1170c12fddd3b00fec42ddf4c942565d9be577 on the Binance Smart Chain Mainnet.
Audit Findings
An Informational finding was identified and the team may want to review it. In addition, some centralized aspects are present.
Date: July 18th, 2023.Finding #1 - SpaceToken - Informational
Description: The internal _burn() and _burnFrom() functions are never called in the contract.
Recommendation: These functions could be removed to reduce contract size and deployment costs.
Contract Overview
- The total supply of the token is currently ~323.15 million $SPACE [323,153,786].
- The owner can mint any number of tokens to any address at any time.
- No burn functions are publicly accessible, though the circulating supply can be decreased by sending tokens to the 0x..dead address.
- At the time of writing this report, there are 2,631 total token holders. The token allocation is as follows:
- The first five EOAs own a cumulative 81.39% of the total supply.
- 6.09% of the total supply belongs to an Anyswap: Polygon Bridge EOA.
- 5.43% of the total supply belongs to an EOA.
- 2.02% of the total supply belongs to an Anyswap: Fantom Bridge EOA.
- 1.03% of the total supply belongs to an AnyswapV6ERC20 contract.
- There are no fees associated with transferring tokens.
- The contract utilizes the SafeMath library to protect against overflows/underflows.
- The contract complies with the BEP-20 token standard.
Audit Results
Vulnerability Category | Notes | Result |
---|---|---|
Arbitrary Jump/Storage Write | N/A | PASS |
Centralization of Control | The owner can mint any number of tokens to any address at any time. | WARNING |
Compiler Issues | N/A | PASS |
Delegate Call to Untrusted Contract | N/A | PASS |
Dependence on Predictable Variables | N/A | PASS |
Ether/Token Theft | N/A | PASS |
Flash Loans | N/A | PASS |
Front Running | N/A | PASS |
Improper Events | N/A | PASS |
Improper Authorization Scheme | N/A | PASS |
Integer Over/Underflow | N/A | PASS |
Logical Issues | N/A | PASS |
Oracle Issues | N/A | PASS |
Outdated Compiler Version | The contract is deployed with outdated compiler version 0.5.16. We recommend the team upgrade to compiler version 0.6.12 or newer. | PASS |
Race Conditions | N/A | PASS |
Reentrancy | N/A | PASS |
Signature Issues | N/A | PASS |
Sybil Attack | N/A | PASS |
Unbounded Loops | N/A | PASS |
Unused Code | N/A | PASS |
Overall Contract Safety | PASS |
Inheritance Chart
Function Graph
Functions Overview
($) = payable function
# = non-constant function
Int = Internal
Ext = External
Pub = Public
+ [Int] IBEP20
- [Ext] totalSupply
- [Ext] decimals
- [Ext] symbol
- [Ext] name
- [Ext] getOwner
- [Ext] balanceOf
- [Ext] transfer #
- [Ext] allowance
- [Ext] approve #
- [Ext] transferFrom #
+ Context
- [Int] #
- [Int] _msgSender
- [Int] _msgData
+ [Lib] SafeMath
- [Int] add
- [Int] sub
- [Int] sub
- [Int] mul
- [Int] div
- [Int] div
- [Int] mod
- [Int] mod
+ Ownable (Context)
- [Int] #
- [Pub] owner
- [Pub] renounceOwnership #
- modifiers: onlyOwner
- [Pub] transferOwnership #
- modifiers: onlyOwner
- [Int] _transferOwnership #
+ SpaceToken (Context, IBEP20, Ownable)
- [Pub] #
- [Ext] getOwner
- [Ext] decimals
- [Ext] symbol
- [Ext] name
- [Ext] totalSupply
- [Ext] balanceOf
- [Ext] transfer #
- [Ext] allowance
- [Ext] approve #
- [Ext] transferFrom #
- [Pub] increaseAllowance #
- [Pub] decreaseAllowance #
- [Pub] mint #
- modifiers: onlyOwner
- [Int] _transfer #
- [Int] _mint #
- [Int] _burn #
- [Int] _approve #
- [Int] _burnFrom #
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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.