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METASFM [MetaSafeMoon] Token

About METASFM

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Token 2 years
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MetaSafeMoon concept was created on October the 17th, in Dubai, at the first Metaverse summit where people from across the globe came to discuss the functionality and applicability of the Metaverse.

MetaSafeMoon's mission is to develop a well-developed ecosystem that embodies the metaverse and the NFTs in the vision of humanity, powered by MetaMoon dashboard.

MetaMoon platform will allow you to purchase land and properties on the moon, build houses and ultimately create entire cities that later be sold on the marketplace.
Join a new, virtual economy where you have the opportunity to make money in the metaverse. Start out by earning a return on your properties and collecting fees from visitors. Feeling ambitious? Flip some of your properties for profit in our free and open marketplace or generate income by becoming a business owner in MetaMoon.

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Laser Scorebeta Last Audit: 17 January 2022

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Token is either risky or in presale. For presale 30+ is a fine score.

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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

METASFM.swapBack() (#572-641) sends eth to arbitrary user
Dangerous calls:
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (#616-619)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in METASFM._transferFrom(address,address,uint256) (#507-545):
External calls:
- swapBack() (#527)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#594-600)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (#616-619)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
- router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
External calls sending eth:
- swapBack() (#527)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (#616-619)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
- router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
State variables written after the call(s):
- _gonBalances[sender] = _gonBalances[sender].sub(gonAmount) (#530)
- _gonBalances[recipient] = _gonBalances[recipient].add(gonAmountReceived) (#535-537)
- gonAmountReceived = takeFee(sender,gonAmount) (#532-534)
- _gonBalances[address(this)] = _gonBalances[address(this)].add(feeAmount) (#564-566)
Apply the check-effects-interactions pattern.

Additional information: link


Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

METASFM.swapBack().success (#616) is written in both
(success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (#616-619)
(success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
METASFM.swapBack().success (#616) is written in both
(success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
(success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
METASFM.swapBack().success (#616) is written in both
(success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
success = false (#629)
Fix or remove the writes.

Additional information: link


Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

METASFM.swapBack() (#572-641) has external calls inside a loop: path[1] = router.WETH() (#590)
METASFM.swapBack() (#572-641) has external calls inside a loop: router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#594-600)
METASFM.swapBack() (#572-641) has external calls inside a loop: (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (#616-619)
METASFM.swapBack() (#572-641) has external calls inside a loop: (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
METASFM.swapBack() (#572-641) has external calls inside a loop: (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
METASFM.swapBack() (#572-641) has external calls inside a loop: router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
Favor pull over push strategy for external calls.

Additional information: link

METASFM.swapping() (#379-383) has costly operations inside a loop:
- inSwap = true (#380)
METASFM.swapping() (#379-383) has costly operations inside a loop:
- inSwap = false (#382)
Use a local variable to hold the loop computation result.

Additional information: link

METASFM.swapBack() (#572-641) performs a multiplication on the result of a division:
-contractTokenBalance = _gonBalances[address(this)].div(_gonsPerFragment) (#579-581)
-amountToLiquify = contractTokenBalance.mul(dynamicLiquidityFee).div(totalFee).div(2) (#582-585)
METASFM.setMaxWalletToken(uint256,uint256) (#715-720) performs a multiplication on the result of a division:
-gonMaxWallet = TOTAL_GONS.div(_denom).mul(_num) (#719)
METASFM.setSwapBackSettings(bool,uint256,uint256) (#738-745) performs a multiplication on the result of a division:
-gonSwapThreshold = TOTAL_GONS.div(_denom).mul(_num) (#744)
METASFM.getLiquidityBacking(uint256) (#829-837) performs a multiplication on the result of a division:
-liquidityBalance = _gonBalances[pair].div(_gonsPerFragment) (#834)
-accuracy.mul(liquidityBalance.mul(2)).div(getCirculatingSupply()) (#835-836)
METASFM.slitherConstructorVariables() (#313-849) performs a multiplication on the result of a division:
-gonMaxWallet = TOTAL_GONS.div(100).mul(5) (#352)
Consider ordering multiplication before division.

Additional information: link

METASFM.swapBack() (#572-641) ignores return value by router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
Ensure that all the return values of the function calls are used.

Additional information: link

ERC20Detailed.constructor(string,string,uint8).name (#144) shadows:
- ERC20Detailed.name() (#153-155) (function)
ERC20Detailed.constructor(string,string,uint8).symbol (#145) shadows:
- ERC20Detailed.symbol() (#157-159) (function)
ERC20Detailed.constructor(string,string,uint8).decimals (#146) shadows:
- ERC20Detailed.decimals() (#161-163) (function)
Rename the local variables that shadow another component.

Additional information: link

METASFM.setMaster(address) (#455-457) should emit an event for:
- master = _master (#456)
Emit an event for critical parameter changes.

Additional information: link

METASFM.setMaxWalletToken(uint256,uint256) (#715-720) should emit an event for:
- gonMaxWallet = TOTAL_GONS.div(_denom).mul(_num) (#719)
METASFM.setSwapBackSettings(bool,uint256,uint256) (#738-745) should emit an event for:
- gonSwapThreshold = TOTAL_GONS.div(_denom).mul(_num) (#744)
METASFM.setTargetLiquidity(uint256,uint256) (#747-750) should emit an event for:
- targetLiquidity = target (#748)
- targetLiquidityDenominator = accuracy (#749)
METASFM.setFees(uint256,uint256,uint256,uint256,uint256) (#764-778) should emit an event for:
- ecosystemFee = _ecosystemFee (#771)
- liquidityFee = _liquidityFee (#772)
- buyBackFee = _buyBackFee (#773)
- marketingFee = _marketingFee (#774)
- totalFee = ecosystemFee.add(liquidityFee).add(marketingFee).add(buyBackFee) (#775)
- feeDenominator = _feeDenominator (#776)
Emit an event for critical parameter changes.

Additional information: link

METASFM.setMaster(address)._master (#455) lacks a zero-check on :
- master = _master (#456)
METASFM.setFeeReceivers(address,address,address,address)._autoLiquidityReceiver (#781) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (#786)
METASFM.setFeeReceivers(address,address,address,address)._ecosystemFeeReceiver (#782) lacks a zero-check on :
- ecosystemFeeReceiver = _ecosystemFeeReceiver (#787)
METASFM.setFeeReceivers(address,address,address,address)._marketingFeeReceiver (#783) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#788)
METASFM.setFeeReceivers(address,address,address,address)._buyBackFeeReceiver (#784) lacks a zero-check on :
- buyBackFeeReceiver = _buyBackFeeReceiver (#789)
METASFM.clearStuckBalance(uint256,address).adr (#800) lacks a zero-check on :
- address(adr).transfer((amountETH * amountPercentage) / 100) (#802-804)
Check that the address is not zero.

Additional information: link

Reentrancy in METASFM.constructor() (#424-453):
External calls:
- pair = IDEXFactory(router.factory()).createPair(router.WETH(),address(this)) (#427-430)
State variables written after the call(s):
- _allowedFragments[address(this)][address(router)] = uint256(- 1) (#431)
- _gonBalances[msg.sender] = TOTAL_GONS (#435)
- _gonsPerFragment = TOTAL_GONS.div(_totalSupply) (#436)
- _isFeeExempt[msg.sender] = true (#439)
- _isFeeExempt[address(this)] = true (#440)
- _isMaxWalletExempt[pair] = true (#442)
- _isMaxWalletExempt[DEAD] = true (#443)
- _isMaxWalletExempt[address(this)] = true (#444)
- _isMaxWalletExempt[msg.sender] = true (#445)
- _totalSupply = INITIAL_FRAGMENTS_SUPPLY (#434)
- autoLiquidityReceiver = 0x2D538dFFbC5a4478ebBFCb8b7a1796D842Ab9215 (#447)
- buyBackFeeReceiver = 0x80203b93b9f7bc4c48F6D9d73C5075d61F717a3f (#450)
- ecosystemFeeReceiver = 0x18cBAD177D661A14b0288e3F0128dC1807093076 (#449)
- initialDistributionFinished = false (#438)
- marketingFeeReceiver = 0xc3FFB967a8AAeCD3027464699E00B17E91AfEE02 (#448)
- pairContract = InterfaceLP(pair) (#432)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in METASFM._transferFrom(address,address,uint256) (#507-545):
External calls:
- swapBack() (#527)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#594-600)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (#616-619)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
- router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
External calls sending eth:
- swapBack() (#527)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (#616-619)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
- router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#632-639)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount.div(_gonsPerFragment)) (#567)
- gonAmountReceived = takeFee(sender,gonAmount) (#532-534)
- Transfer(sender,recipient,gonAmountReceived.div(_gonsPerFragment)) (#539-543)
Reentrancy in METASFM.constructor() (#424-453):
External calls:
- pair = IDEXFactory(router.factory()).createPair(router.WETH(),address(this)) (#427-430)
Event emitted after the call(s):
- Transfer(address(0x0),msg.sender,_totalSupply) (#452)
Reentrancy in METASFM.rebase(uint256,int256) (#396-422):
External calls:
- pairContract.sync() (#418)
Event emitted after the call(s):
- LogRebase(epoch,_totalSupply) (#420)
Apply the check-effects-interactions pattern.

Additional information: link

METASFM.transferToAddressETH(address,uint256) (#807-811) is never used and should be removed
SafeMath.mod(uint256,uint256) (#99-102) is never used and should be removed
SafeMathInt.abs(int256) (#196-199) is never used and should be removed
SafeMathInt.add(int256,int256) (#190-194) is never used and should be removed
SafeMathInt.div(int256,int256) (#178-182) is never used and should be removed
SafeMathInt.mul(int256,int256) (#170-176) is never used and should be removed
SafeMathInt.sub(int256,int256) (#184-188) is never used and should be removed
Remove unused functions.

Additional information: link

METASFM.totalFee (#358-359) is set pre-construction with a non-constant function or state variable:
- ecosystemFee.add(liquidityFee).add(marketingFee).add(buyBackFee)
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Pragma version^0.7.4 (#48) allows old versions
solc-0.7.4 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Low level call in METASFM.swapBack() (#572-641):
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (#616-619)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (#620-623)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (#624-627)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IDEXRouter.WETH() (#254) is not in mixedCase
Parameter METASFM.setMaster(address)._master (#455) is not in mixedCase
Parameter METASFM.setLP(address)._address (#459) is not in mixedCase
Parameter METASFM.enableTransfer(address)._addr (#695) is not in mixedCase
Parameter METASFM.setFeeExempt(address)._addr (#699) is not in mixedCase
Parameter METASFM.checkFeeExempt(address)._addr (#703) is not in mixedCase
Parameter METASFM.setMaxWalletExempt(address)._addr (#707) is not in mixedCase
Parameter METASFM.checkMaxWalletExempt(address)._addr (#711) is not in mixedCase
Parameter METASFM.setMaxWalletToken(uint256,uint256)._num (#715) is not in mixedCase
Parameter METASFM.setMaxWalletToken(uint256,uint256)._denom (#715) is not in mixedCase
Parameter METASFM.setSwapBackSettings(bool,uint256,uint256)._enabled (#739) is not in mixedCase
Parameter METASFM.setSwapBackSettings(bool,uint256,uint256)._num (#740) is not in mixedCase
Parameter METASFM.setSwapBackSettings(bool,uint256,uint256)._denom (#741) is not in mixedCase
Parameter METASFM.setFees(uint256,uint256,uint256,uint256,uint256)._ecosystemFee (#765) is not in mixedCase
Parameter METASFM.setFees(uint256,uint256,uint256,uint256,uint256)._liquidityFee (#766) is not in mixedCase
Parameter METASFM.setFees(uint256,uint256,uint256,uint256,uint256)._buyBackFee (#767) is not in mixedCase
Parameter METASFM.setFees(uint256,uint256,uint256,uint256,uint256)._marketingFee (#768) is not in mixedCase
Parameter METASFM.setFees(uint256,uint256,uint256,uint256,uint256)._feeDenominator (#769) is not in mixedCase
Parameter METASFM.setFeeReceivers(address,address,address,address)._autoLiquidityReceiver (#781) is not in mixedCase
Parameter METASFM.setFeeReceivers(address,address,address,address)._ecosystemFeeReceiver (#782) is not in mixedCase
Parameter METASFM.setFeeReceivers(address,address,address,address)._marketingFeeReceiver (#783) is not in mixedCase
Parameter METASFM.setFeeReceivers(address,address,address,address)._buyBackFeeReceiver (#784) is not in mixedCase
Variable METASFM._isFeeExempt (#331) is not in mixedCase
Variable METASFM._isMaxWalletExempt (#332) is not in mixedCase
Variable METASFM.DEAD (#362) is not in mixedCase
Variable METASFM.ZERO (#363) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#259) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#260)
Prevent variables from having similar names.

Additional information: link

METASFM.slitherConstructorVariables() (#313-849) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#362)
METASFM.slitherConstructorVariables() (#313-849) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#363)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

SafeMathInt.MAX_INT256 (#168) is never used in SafeMathInt (#166-200)
Remove unused state variables.

Additional information: link

METASFM.DEAD (#362) should be constant
METASFM.ZERO (#363) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

name() should be declared external:
- ERC20Detailed.name() (#153-155)
symbol() should be declared external:
- ERC20Detailed.symbol() (#157-159)
decimals() should be declared external:
- ERC20Detailed.decimals() (#161-163)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#229-232)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#234-236)
rescueToken(address,uint256) should be declared external:
- METASFM.rescueToken(address,uint256) (#792-798)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Token is deployed only at one blockchain


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute number of swaps.


Last post in Twitter was more than 30 days ago


Unable to find Youtube account


Unable to find Discord account


BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link


Unable to find token contract audit


Unable to find audit link on the website


Unable to find whitepaper link on the website


Unable to find code repository for the project


Young tokens have high risks of price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death


Token has relatively low CoinGecko rank


Token has relatively low CoinMarketCap rank

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