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Cfrog [CrazyFrog] Token

About Cfrog

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Token 2 years
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Crazy Frog is the funniest frog on BSC! A community-focused, decentralized cryptocurrency with instant rewards for holders.

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Laser Scorebeta Last Audit: 18 June 2022

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

CrazyFrog.sendETHToFee(uint256) (#296-299) sends eth to arbitrary user
Dangerous calls:
- _developmentAddress.transfer(amount.div(2)) (#297)
- _marketingAddress.transfer(amount.div(2)) (#298)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in CrazyFrog._transfer(address,address,uint256) (#243-280):
External calls:
- swapTokensForEth(contractTokenBalance) (#255)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#287-293)
External calls sending eth:
- sendETHToFee(address(this).balance) (#258)
- _developmentAddress.transfer(amount.div(2)) (#297)
- _marketingAddress.transfer(amount.div(2)) (#298)
State variables written after the call(s):
- _tokenTransfer(from,to,amount) (#279)
- _rOwned[address(this)] = _rOwned[address(this)].add(rTeam) (#337)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#327)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#328)
- _tokenTransfer(from,to,amount) (#279)
- _rTotal = _rTotal.sub(rFee) (#341)
Apply the check-effects-interactions pattern.

Additional information: link

CrazyFrog.rescueForeignTokens(address,address,uint256) (#306-309) ignores return value by Token(_tokenAddr).transfer(_to,_amount) (#308)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

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.


Combination 2: Unchecked transfer + 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.


Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.


Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains

CrazyFrog.allowance(address,address).owner (#215) shadows:
- Ownable.owner() (#107-109) (function)
CrazyFrog._approve(address,address,uint256).owner (#236) shadows:
- Ownable.owner() (#107-109) (function)
Rename the local variables that shadow another component.

Additional information: link

Ownable.transferOwnership(address).newOwner (#122) lacks a zero-check on :
- _owner = newOwner (#124)
CrazyFrog.setNewDevAddress(address).dev (#312) lacks a zero-check on :
- _developmentAddress = dev (#314)
CrazyFrog.setNewMarketingAddress(address).markt (#319) lacks a zero-check on :
- _marketingAddress = markt (#321)
Check that the address is not zero.

Additional information: link

CrazyFrog.constructor() (#169-183) uses literals with too many digits:
- Transfer(address(0x0000000000000000000000000000000000000000),_msgSender(),_tTotal) (#182)
CrazyFrog.slitherConstructorConstantVariables() (#129-414) uses literals with too many digits:
- _tTotal = 100000000000 * 10 ** 4 * 10 ** 5 (#138)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Ownable._previousOwner (#99) is never used in CrazyFrog (#129-414)
CrazyFrog._tOwned (#133) is never used in CrazyFrog (#129-414)
Remove unused state variables.

Additional information: link

Ownable._previousOwner (#99) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Reentrancy in CrazyFrog._transfer(address,address,uint256) (#243-280):
External calls:
- swapTokensForEth(contractTokenBalance) (#255)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#287-293)
External calls sending eth:
- sendETHToFee(address(this).balance) (#258)
- _developmentAddress.transfer(amount.div(2)) (#297)
- _marketingAddress.transfer(amount.div(2)) (#298)
State variables written after the call(s):
- _redisFee = _redisFeeOnBuy (#263)
- _redisFee = _redisFeeOnSell (#268)
- _redisFee = 0 (#273)
- _tokenTransfer(from,to,amount) (#279)
- _tFeeTotal = _tFeeTotal.add(tFee) (#342)
- _taxFee = _taxFeeOnBuy (#264)
- _taxFee = _taxFeeOnSell (#269)
- _taxFee = 0 (#274)
Reentrancy in CrazyFrog.constructor() (#169-183):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#174-175)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#177)
- _isExcludedFromFee[address(this)] = true (#178)
- _isExcludedFromFee[_developmentAddress] = true (#179)
- _isExcludedFromFee[_marketingAddress] = true (#180)
Reentrancy in CrazyFrog.transferFrom(address,address,uint256) (#224-228):
External calls:
- _transfer(sender,recipient,amount) (#225)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#287-293)
External calls sending eth:
- _transfer(sender,recipient,amount) (#225)
- _developmentAddress.transfer(amount.div(2)) (#297)
- _marketingAddress.transfer(amount.div(2)) (#298)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#226)
- _allowances[owner][spender] = amount (#239)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in CrazyFrog._transfer(address,address,uint256) (#243-280):
External calls:
- swapTokensForEth(contractTokenBalance) (#255)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#287-293)
External calls sending eth:
- sendETHToFee(address(this).balance) (#258)
- _developmentAddress.transfer(amount.div(2)) (#297)
- _marketingAddress.transfer(amount.div(2)) (#298)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#331)
- _tokenTransfer(from,to,amount) (#279)
Reentrancy in CrazyFrog.constructor() (#169-183):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#174-175)
Event emitted after the call(s):
- Transfer(address(0x0000000000000000000000000000000000000000),_msgSender(),_tTotal) (#182)
Reentrancy in CrazyFrog.transferFrom(address,address,uint256) (#224-228):
External calls:
- _transfer(sender,recipient,amount) (#225)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#287-293)
External calls sending eth:
- _transfer(sender,recipient,amount) (#225)
- _developmentAddress.transfer(amount.div(2)) (#297)
- _marketingAddress.transfer(amount.div(2)) (#298)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#240)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#226)
Apply the check-effects-interactions pattern.

Additional information: link

Function IUniswapV2Router02.WETH() (#40) is not in mixedCase
Event CrazyFrogtokensRescued(address,address,uint256) (#305) is not in CapWords
Event CrazyFrogdevAddressUpdated(address,address) (#311) is not in CapWords
Event CrazyFrogmarketingAddressUpdated(address,address) (#318) is not in CapWords
Parameter CrazyFrog.rescueForeignTokens(address,address,uint256)._tokenAddr (#306) is not in mixedCase
Parameter CrazyFrog.rescueForeignTokens(address,address,uint256)._to (#306) is not in mixedCase
Parameter CrazyFrog.rescueForeignTokens(address,address,uint256)._amount (#306) is not in mixedCase
Parameter CrazyFrog.toggleSwap(bool)._swapEnabled (#404) is not in mixedCase
Constant CrazyFrog._tTotal (#138) is not in UPPER_CASE_WITH_UNDERSCORES
Constant CrazyFrog._name (#151) is not in UPPER_CASE_WITH_UNDERSCORES
Constant CrazyFrog._symbol (#152) is not in UPPER_CASE_WITH_UNDERSCORES
Constant CrazyFrog._decimals (#153) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.

Additional information: link

Reentrancy in CrazyFrog._transfer(address,address,uint256) (#243-280):
External calls:
- sendETHToFee(address(this).balance) (#258)
- _developmentAddress.transfer(amount.div(2)) (#297)
- _marketingAddress.transfer(amount.div(2)) (#298)
State variables written after the call(s):
- _tokenTransfer(from,to,amount) (#279)
- _rOwned[address(this)] = _rOwned[address(this)].add(rTeam) (#337)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#327)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#328)
- _tokenTransfer(from,to,amount) (#279)
- _rTotal = _rTotal.sub(rFee) (#341)
- _redisFee = _redisFeeOnBuy (#263)
- _redisFee = _redisFeeOnSell (#268)
- _redisFee = 0 (#273)
- _tokenTransfer(from,to,amount) (#279)
- _tFeeTotal = _tFeeTotal.add(tFee) (#342)
- _taxFee = _taxFeeOnBuy (#264)
- _taxFee = _taxFeeOnSell (#269)
- _taxFee = 0 (#274)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#331)
- _tokenTransfer(from,to,amount) (#279)
Reentrancy in CrazyFrog.transferFrom(address,address,uint256) (#224-228):
External calls:
- _transfer(sender,recipient,amount) (#225)
- _developmentAddress.transfer(amount.div(2)) (#297)
- _marketingAddress.transfer(amount.div(2)) (#298)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#226)
- _allowances[owner][spender] = amount (#239)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#240)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#226)
Apply the check-effects-interactions pattern.

Additional information: link

Variable CrazyFrog._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#365) is too similar to CrazyFrog._transferStandard(address,address,uint256).tTransferAmount (#326)
Variable CrazyFrog._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#365) is too similar to CrazyFrog._getValues(uint256).tTransferAmount (#348)
Variable CrazyFrog._transferStandard(address,address,uint256).rTransferAmount (#326) is too similar to CrazyFrog._transferStandard(address,address,uint256).tTransferAmount (#326)
Variable CrazyFrog._getValues(uint256).rTransferAmount (#350) is too similar to CrazyFrog._transferStandard(address,address,uint256).tTransferAmount (#326)
Variable CrazyFrog._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#365) is too similar to CrazyFrog._getTValues(uint256,uint256,uint256).tTransferAmount (#357)
Variable CrazyFrog._transferStandard(address,address,uint256).rTransferAmount (#326) is too similar to CrazyFrog._getTValues(uint256,uint256,uint256).tTransferAmount (#357)
Variable CrazyFrog._getValues(uint256).rTransferAmount (#350) is too similar to CrazyFrog._getValues(uint256).tTransferAmount (#348)
Variable CrazyFrog._transferStandard(address,address,uint256).rTransferAmount (#326) is too similar to CrazyFrog._getValues(uint256).tTransferAmount (#348)
Variable CrazyFrog._getValues(uint256).rTransferAmount (#350) is too similar to CrazyFrog._getTValues(uint256,uint256,uint256).tTransferAmount (#357)
Prevent variables from having similar names.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#116-119)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#122-125)
name() should be declared external:
- CrazyFrog.name() (#190-192)
symbol() should be declared external:
- CrazyFrog.symbol() (#194-196)
decimals() should be declared external:
- CrazyFrog.decimals() (#198-200)
totalSupply() should be declared external:
- CrazyFrog.totalSupply() (#202-204)
transfer(address,uint256) should be declared external:
- CrazyFrog.transfer(address,uint256) (#210-213)
allowance(address,address) should be declared external:
- CrazyFrog.allowance(address,address) (#215-217)
approve(address,uint256) should be declared external:
- CrazyFrog.approve(address,uint256) (#219-222)
transferFrom(address,address,uint256) should be declared external:
- CrazyFrog.transferFrom(address,address,uint256) (#224-228)
rescueForeignTokens(address,address,uint256) should be declared external:
- CrazyFrog.rescueForeignTokens(address,address,uint256) (#306-309)
setNewDevAddress(address) should be declared external:
- CrazyFrog.setNewDevAddress(address) (#312-316)
setNewMarketingAddress(address) should be declared external:
- CrazyFrog.setNewMarketingAddress(address) (#319-323)
setFee(uint256,uint256,uint256,uint256) should be declared external:
- CrazyFrog.setFee(uint256,uint256,uint256,uint256) (#393-402)
toggleSwap(bool) should be declared external:
- CrazyFrog.toggleSwap(bool) (#404-406)
excludeMultipleAccountsFromFees(address[],bool) should be declared external:
- CrazyFrog.excludeMultipleAccountsFromFees(address[],bool) (#408-412)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Number of Binance Smart Chain (BSC) token holders is low.


Average 30d PancakeSwap liquidity is low.


Token is deployed only at one blockchain


Token has only one trading pair

Contract has 10% buy tax and 9% sell tax.
Taxes are low and contract ownership is renounced.


Unable to find Blog account (Reddit or Medium)


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 on CoinGecko

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Unable to find token on CoinMarketCap

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Unable to find whitepaper link on the website


Token is not listed at Mobula.Finance

Additional information: link


Unable to find token on CoinHunt

Additional information: link


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


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


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


Token has no active CoinGecko listing / rank


Token has no active CoinMarketCap listing / rank

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