| Vulnerability Category | Notes | Result |
|---|---|---|
| Arbitrary Storage Write | N/A | PASS |
| Arbitrary Jump | N/A | PASS |
| Delegate Call to Untrusted Contract | N/A | PASS |
| Dependence on Predictable Variables | N/A | PASS |
| Deprecated Opcodes | N/A | PASS |
| Ether Thief | N/A | PASS |
| Exceptions | N/A | PASS |
| External Calls | N/A | PASS |
| Flash Loans | N/A | PASS |
| Integer Over/Underflow | N/A | PASS |
| Multiple Sends | N/A | PASS |
| Oracles | N/A | PASS |
| Suicide | N/A | PASS |
| State Change External Calls | N/A | Pass |
| Unchecked Retval | N/A | PASS |
| User Supplied Assertion | N/A | PASS |
| Critical Solidity Compiler | N/A | PASS |
| Overall Contract Safety | PASS |
MUNCH - Smart Contract Audit Report
Summary
MUNCH is a new token with frictionless fee redistribution and charity contribution on each transfer.
Overview of the Contract:Audit Findings Summary
- The total supply of the token is set to 100 trillion.
- No mint or burn functions are present; though the circulating supply can be reduced by sending tokens to the 0x..dead address, if desired.
- ~24.6% of the token's supply has been locked and unlocks in four portions in 1, 2, 3, and 4 weeks.
- Uniswap holds ~4.2% of the token's supply as liquidity. 98% of iquidity has been locked for 6 months.
- There are 2 wallets which hold as much or more tokens than the liquidity pool - One is the team's marketing address, and another is an investor who continues to purchase large amounts of tokens.
- The next largest holder has 2.5%
- Users who hold tokens will automatically receive a portion the fees from a transaction tax on each transfer.
- A portion of the fee charged on transactions is stored in the contract and, once a threshold value is met, these tokens will be sold for ETH and stored in the contract.
- The owner of the contract can transfer ETH out of the contract at any time to the charity wallet. The charity wallet address can be set at any time.
- The owner can update the tax rates at any time; up to a maximum of 21%
- We generally advise renouncing ownership to decrease the centralization of the project, though the team has elected to retain ownership so they can update the charity address.
- The owner of the contract can exclude and include users from transfer fees, update the maximum transaciton amount, update the fee percentages and update how the fees are allocated.
- There is a transfer limit, but it is set to the total supply. While the team can update this, the minimum vale is the total supply.
- Some functions could have been declared external instead of public to save some gas, but as this is already deployed this is merely informational.
- The contract utilizes SafeMath libraries to prevent overflows along with following the ERC standard.
- No security issues were identified in our analysis.
- Ensure trust in the team as they have notable control in the ecosystem and will be vested a large number of tokens.
- Date: April 23rd, 2021
- Update Date: April 25th, 2021 - Locking of tokens.
($) = payable function
# = non-constant function
+ Context
- [Int] _msgSender
- [Int] _msgData
+ [Int] IERC20
- [Ext] totalSupply
- [Ext] balanceOf
- [Ext] transfer #
- [Ext] allowance
- [Ext] approve #
- [Ext] transferFrom #
+ [Lib] SafeMath
- [Int] add
- [Int] sub
- [Int] sub
- [Int] mul
- [Int] div
- [Int] div
- [Int] mod
- [Int] mod
+ [Lib] Address
- [Int] isContract
- [Int] sendValue #
- [Int] functionCall #
- [Int] functionCall #
- [Int] functionCallWithValue #
- [Int] functionCallWithValue #
- [Prv] _functionCallWithValue #
+ Ownable (Context)
- [Int] #
- [Pub] owner
- [Pub] renounceOwnership #
- modifiers: onlyOwner
- [Pub] transferOwnership #
- modifiers: onlyOwner
- [Pub] geUnlockTime
- [Pub] lock #
- modifiers: onlyOwner
- [Pub] unlock #
+ [Int] IUniswapV2Factory
- [Ext] feeTo
- [Ext] feeToSetter
- [Ext] getPair
- [Ext] allPairs
- [Ext] allPairsLength
- [Ext] createPair #
- [Ext] setFeeTo #
- [Ext] setFeeToSetter #
+ [Int] IUniswapV2Pair
- [Ext] name
- [Ext] symbol
- [Ext] decimals
- [Ext] totalSupply
- [Ext] balanceOf
- [Ext] allowance
- [Ext] approve #
- [Ext] transfer #
- [Ext] transferFrom #
- [Ext] DOMAIN_SEPARATOR
- [Ext] PERMIT_TYPEHASH
- [Ext] nonces
- [Ext] permit #
- [Ext] MINIMUM_LIQUIDITY
- [Ext] factory
- [Ext] token0
- [Ext] token1
- [Ext] getReserves
- [Ext] price0CumulativeLast
- [Ext] price1CumulativeLast
- [Ext] kLast
- [Ext] mint #
- [Ext] burn #
- [Ext] swap #
- [Ext] skim #
- [Ext] sync #
- [Ext] initialize #
+ [Int] IUniswapV2Router01
- [Ext] factory
- [Ext] WETH
- [Ext] addLiquidity #
- [Ext] addLiquidityETH ($)
- [Ext] removeLiquidity #
- [Ext] removeLiquidityETH #
- [Ext] removeLiquidityWithPermit #
- [Ext] removeLiquidityETHWithPermit #
- [Ext] swapExactTokensForTokens #
- [Ext] swapTokensForExactTokens #
- [Ext] swapExactETHForTokens ($)
- [Ext] swapTokensForExactETH #
- [Ext] swapExactTokensForETH #
- [Ext] swapETHForExactTokens ($)
- [Ext] quote
- [Ext] getAmountOut
- [Ext] getAmountIn
- [Ext] getAmountsOut
- [Ext] getAmountsIn
+ [Int] IUniswapV2Router02 (IUniswapV2Router01)
- [Ext] removeLiquidityETHSupportingFeeOnTransferTokens #
- [Ext] removeLiquidityETHWithPermitSupportingFeeOnTransferTokens #
- [Ext] swapExactTokensForTokensSupportingFeeOnTransferTokens #
- [Ext] swapExactETHForTokensSupportingFeeOnTransferTokens ($)
- [Ext] swapExactTokensForETHSupportingFeeOnTransferTokens #
+ MUNCH (Context, IERC20, Ownable)
- [Pub] #
- [Pub] name
- [Pub] symbol
- [Pub] decimals
- [Pub] totalSupply
- [Pub] balanceOf
- [Pub] transfer #
- [Pub] allowance
- [Pub] approve #
- [Pub] transferFrom #
- [Pub] increaseAllowance #
- [Pub] decreaseAllowance #
- [Pub] isExcluded
- [Ext] setExcludeFromFee #
- modifiers: onlyOwner
- [Pub] totalFees
- [Pub] deliver #
- [Pub] reflectionFromToken
- [Pub] tokenFromReflection
- [Ext] excludeAccount #
- modifiers: onlyOwner
- [Ext] includeAccount #
- modifiers: onlyOwner
- [Prv] removeAllFee #
- [Prv] restoreAllFee #
- [Pub] isExcludedFromFee
- [Prv] _approve #
- [Prv] _transfer #
- [Prv] swapTokensForEth #
- modifiers: lockTheSwap
- [Prv] sendETHToCharity #
- [Ext] manualSwap #
- modifiers: onlyOwner
- [Ext] manualSend #
- modifiers: onlyOwner
- [Ext] setSwapEnabled #
- modifiers: onlyOwner
- [Prv] _tokenTransfer #
- [Prv] _transferStandard #
- [Prv] _transferToExcluded #
- [Prv] _transferFromExcluded #
- [Prv] _transferBothExcluded #
- [Prv] _takeCharity #
- [Prv] _reflectFee #
- [Ext] ($)
- [Prv] _getValues
- [Prv] _getTValues
- [Prv] _getRValues
- [Prv] _getRate
- [Prv] _getCurrentSupply
- [Prv] _getTaxFee
- [Prv] _getMaxTxAmount
- [Pub] _getETHBalance
- [Ext] _setTaxFee #
- modifiers: onlyOwner
- [Ext] _setCharityFee #
- modifiers: onlyOwner
- [Ext] _setCharityWallet #
- modifiers: onlyOwner
- [Ext] _setMaxTxAmount #
- modifiers: onlyOwner