KFC [Kentucky Fried Crypto] Token

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

KentuckyFriedCrypto.swapBack() (#405-450) sends eth to arbitrary user
Dangerous calls:
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
- (tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in KentuckyFriedCrypto._transferFrom(address,address,uint256) (#293-330):
External calls:
- swapBack() (#320)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#416-422)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
- (tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#440-447)
External calls sending eth:
- swapBack() (#320)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
- (tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#440-447)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#323)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#326)
- amountReceived = takeFee(sender,amount,(recipient == pair)) (#325)
- _balances[address(this)] = _balances[address(this)].add(contractTokens) (#359)
- _balances[burnFeeReceiver] = _balances[burnFeeReceiver].add(burnTokens) (#360)
Apply the check-effects-interactions pattern.

Additional information: link

Contract ownership is not renounced (belongs to a wallet)

KentuckyFriedCrypto.swapBack().tmpSuccess (#433) is written in both
(tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
(tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
KentuckyFriedCrypto.swapBack().tmpSuccess (#433) is written in both
(tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
(tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
KentuckyFriedCrypto.swapBack().tmpSuccess (#433) is written in both
(tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
tmpSuccess = false (#437)
Fix or remove the writes.

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.

KentuckyFriedCrypto.manage_kentuckyFrieddd(address[],bool).i (#457) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

KentuckyFriedCrypto.takeFee(address,uint256,bool) (#347-368) performs a multiplication on the result of a division:
-feeAmount = amount.mul(totalFee).mul(multiplier).div(feeDenominator * 100) (#350)
-burnTokens = feeAmount.mul(burnFee).div(totalFee) (#356)
KentuckyFriedCrypto.takeFee(address,uint256,bool) (#347-368) performs a multiplication on the result of a division:
-feeAmount = amount.div(100).mul(99) (#353)
Consider ordering multiplication before division.

Additional information: link

KentuckyFriedCrypto.swapBack() (#405-450) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#440-447)
Ensure that all the return values of the function calls are used.

Additional information: link

KentuckyFriedCrypto.setMaxTxPercent_base1000(uint256) (#285-287) should emit an event for:
- _maxTxAmount = (_totalSupply * maxTXPercentage_base1000) / 1000 (#286)
KentuckyFriedCrypto.setTxLimit(uint256) (#289-291) should emit an event for:
- _maxTxAmount = amount (#290)
KentuckyFriedCrypto.set_sell_multiplier(uint256) (#382-384) should emit an event for:
- sellMultiplier = Multiplier (#383)
KentuckyFriedCrypto.tradingStatus(bool,uint256) (#387-393) should emit an event for:
- deadBlocks = _deadBlocks (#391)
KentuckyFriedCrypto.launchStatus(uint256) (#395-397) should emit an event for:
- launchedAt = _launchblock (#396)
KentuckyFriedCrypto.setFees(uint256,uint256,uint256,uint256,uint256,uint256) (#474-483) should emit an event for:
- liquidityFee = _liquidityFee (#475)
- devFee = _devFee (#476)
- marketingFee = _marketingFee (#477)
- treasuryFee = _treasuryFee (#478)
- burnFee = _burnFee (#479)
- totalFee = _liquidityFee.add(_devFee).add(_marketingFee).add(_treasuryFee).add(_burnFee) (#480)
- feeDenominator = _feeDenominator (#481)
KentuckyFriedCrypto.setSwapBackSettings(bool,uint256) (#493-496) should emit an event for:
- swapThreshold = _amount (#495)
KentuckyFriedCrypto.setTargetLiquidity(uint256,uint256) (#498-501) should emit an event for:
- targetLiquidity = _target (#499)
- targetLiquidityDenominator = _denominator (#500)
Emit an event for critical parameter changes.

Additional information: link

Auth.transferOwnership(address).adr (#94) lacks a zero-check on :
- owner = adr (#95)
KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._autoLiquidityReceiver (#485) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (#486)
KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._marketingFeeReceiver (#485) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#487)
KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._treasuryFeeReceiver (#485) lacks a zero-check on :
- treasuryFeeReceiver = _treasuryFeeReceiver (#488)
KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._burnFeeReceiver (#485) lacks a zero-check on :
- burnFeeReceiver = _burnFeeReceiver (#489)
KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._devFeeReceiver (#485) lacks a zero-check on :
- devFeeReceiver = _devFeeReceiver (#490)
Check that the address is not zero.

Additional information: link

Reentrancy in KentuckyFriedCrypto.constructor() (#222-248):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#224)
State variables written after the call(s):
- _allowances[address(this)][address(router)] = type()(uint256).max (#227)
- _balances[msg.sender] = _totalSupply (#246)
- autoLiquidityReceiver = msg.sender (#240)
- burnFeeReceiver = DEAD (#244)
- devFeeReceiver = 0x25c9AeEE24b448835B7f4B91Eb1cbd4CcBFaA111 (#243)
- isDividendExempt[pair] = true (#236)
- isDividendExempt[address(this)] = true (#237)
- isDividendExempt[DEAD] = true (#238)
- isFeeExempt[msg.sender] = true (#229)
- isTimelockExempt[msg.sender] = true (#232)
- isTimelockExempt[DEAD] = true (#233)
- isTimelockExempt[address(this)] = true (#234)
- isTxLimitExempt[msg.sender] = true (#230)
- marketingFeeReceiver = 0x6a4f228BDa6C3F042A7889F97Ecc825F2F8C58f8 (#241)
- pairContract = InterfaceLP(pair) (#225)
- treasuryFeeReceiver = 0x6a4f228BDa6C3F042A7889F97Ecc825F2F8C58f8 (#242)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in KentuckyFriedCrypto._transferFrom(address,address,uint256) (#293-330):
External calls:
- swapBack() (#320)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#416-422)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
- (tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#440-447)
External calls sending eth:
- swapBack() (#320)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
- (tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#440-447)
Event emitted after the call(s):
- Transfer(sender,address(this),contractTokens) (#361)
- amountReceived = takeFee(sender,amount,(recipient == pair)) (#325)
- Transfer(sender,burnFeeReceiver,burnTokens) (#364)
- amountReceived = takeFee(sender,amount,(recipient == pair)) (#325)
- Transfer(sender,recipient,amountReceived) (#328)
Reentrancy in KentuckyFriedCrypto.constructor() (#222-248):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#224)
Event emitted after the call(s):
- Transfer(address(0),msg.sender,_totalSupply) (#247)
Reentrancy in KentuckyFriedCrypto.swapBack() (#405-450):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#416-422)
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
- (tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#440-447)
External calls sending eth:
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
- (tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#440-447)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#448)
Apply the check-effects-interactions pattern.

Additional information: link

KentuckyFriedCrypto._transferFrom(address,address,uint256) (#293-330) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(cooldownTimer[recipient] < block.timestamp,Please wait for 1min between two buys) (#313)
Avoid relying on block.timestamp.

Additional information: link

KentuckyFriedCrypto._maxTxAmount (#172) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 100
KentuckyFriedCrypto._maxWalletToken (#173) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 50
KentuckyFriedCrypto.totalFee (#191) is set pre-construction with a non-constant function or state variable:
- devFee + marketingFee + liquidityFee + treasuryFee + burnFee
KentuckyFriedCrypto.swapThreshold (#218) is set pre-construction with a non-constant function or state variable:
- _totalSupply * 10 / 10000
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

solc-0.8.12 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 KentuckyFriedCrypto.swapBack() (#405-450):
- (tmpSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#433)
- (tmpSuccess,None) = address(treasuryFeeReceiver).call{gas: 30000,value: amountBNBTreasury}() (#434)
- (tmpSuccess,None) = address(devFeeReceiver).call{gas: 30000,value: amountBNBDev}() (#435)
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() (#109) is not in mixedCase
Function KentuckyFriedCrypto.setMaxWalletPercent_base1000(uint256) (#282-284) is not in mixedCase
Parameter KentuckyFriedCrypto.setMaxWalletPercent_base1000(uint256).maxWallPercent_base1000 (#282) is not in mixedCase
Function KentuckyFriedCrypto.setMaxTxPercent_base1000(uint256) (#285-287) is not in mixedCase
Parameter KentuckyFriedCrypto.setMaxTxPercent_base1000(uint256).maxTXPercentage_base1000 (#285) is not in mixedCase
Function KentuckyFriedCrypto.set_sell_multiplier(uint256) (#382-384) is not in mixedCase
Parameter KentuckyFriedCrypto.set_sell_multiplier(uint256).Multiplier (#382) is not in mixedCase
Parameter KentuckyFriedCrypto.tradingStatus(bool,uint256)._status (#387) is not in mixedCase
Parameter KentuckyFriedCrypto.tradingStatus(bool,uint256)._deadBlocks (#387) is not in mixedCase
Parameter KentuckyFriedCrypto.launchStatus(uint256)._launchblock (#395) is not in mixedCase
Parameter KentuckyFriedCrypto.cooldownEnabled(bool,uint8)._status (#400) is not in mixedCase
Parameter KentuckyFriedCrypto.cooldownEnabled(bool,uint8)._interval (#400) is not in mixedCase
Function KentuckyFriedCrypto.enable_kentuckyFrieddd(bool) (#452-454) is not in mixedCase
Parameter KentuckyFriedCrypto.enable_kentuckyFrieddd(bool)._status (#452) is not in mixedCase
Function KentuckyFriedCrypto.manage_kentuckyFrieddd(address[],bool) (#456-460) is not in mixedCase
Parameter KentuckyFriedCrypto.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._liquidityFee (#474) is not in mixedCase
Parameter KentuckyFriedCrypto.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._devFee (#474) is not in mixedCase
Parameter KentuckyFriedCrypto.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._marketingFee (#474) is not in mixedCase
Parameter KentuckyFriedCrypto.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._treasuryFee (#474) is not in mixedCase
Parameter KentuckyFriedCrypto.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._burnFee (#474) is not in mixedCase
Parameter KentuckyFriedCrypto.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._feeDenominator (#474) is not in mixedCase
Parameter KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._autoLiquidityReceiver (#485) is not in mixedCase
Parameter KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._marketingFeeReceiver (#485) is not in mixedCase
Parameter KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._treasuryFeeReceiver (#485) is not in mixedCase
Parameter KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._burnFeeReceiver (#485) is not in mixedCase
Parameter KentuckyFriedCrypto.setFeeReceivers(address,address,address,address,address)._devFeeReceiver (#485) is not in mixedCase
Parameter KentuckyFriedCrypto.setSwapBackSettings(bool,uint256)._enabled (#493) is not in mixedCase
Parameter KentuckyFriedCrypto.setSwapBackSettings(bool,uint256)._amount (#493) is not in mixedCase
Parameter KentuckyFriedCrypto.setTargetLiquidity(uint256,uint256)._target (#498) is not in mixedCase
Parameter KentuckyFriedCrypto.setTargetLiquidity(uint256,uint256)._denominator (#498) is not in mixedCase
Variable KentuckyFriedCrypto.WBNB (#162) is not in mixedCase
Variable KentuckyFriedCrypto.DEAD (#163) is not in mixedCase
Variable KentuckyFriedCrypto.ZERO (#164) is not in mixedCase
Constant KentuckyFriedCrypto._name (#166) is not in UPPER_CASE_WITH_UNDERSCORES
Constant KentuckyFriedCrypto._symbol (#167) is not in UPPER_CASE_WITH_UNDERSCORES
Constant KentuckyFriedCrypto._decimals (#168) is not in UPPER_CASE_WITH_UNDERSCORES
Variable KentuckyFriedCrypto._totalSupply (#170) is not in mixedCase
Variable KentuckyFriedCrypto._maxTxAmount (#172) is not in mixedCase
Variable KentuckyFriedCrypto._maxWalletToken (#173) is not in mixedCase
Variable KentuckyFriedCrypto._balances (#175) is not in mixedCase
Variable KentuckyFriedCrypto._allowances (#176) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#114) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#115)
Prevent variables from having similar names.

Additional information: link

KentuckyFriedCrypto.slitherConstructorVariables() (#159-539) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#163)
KentuckyFriedCrypto.slitherConstructorVariables() (#159-539) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#164)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

KentuckyFriedCrypto.DEAD (#163) should be constant
KentuckyFriedCrypto.WBNB (#162) should be constant
KentuckyFriedCrypto.ZERO (#164) should be constant
KentuckyFriedCrypto._totalSupply (#170) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

authorize(address) should be declared external:
- Auth.authorize(address) (#78-80)
unauthorize(address) should be declared external:
- Auth.unauthorize(address) (#82-84)
transferOwnership(address) should be declared external:
- Auth.transferOwnership(address) (#94-98)
tradingStatus(bool,uint256) should be declared external:
- KentuckyFriedCrypto.tradingStatus(bool,uint256) (#387-393)
launchStatus(uint256) should be declared external:
- KentuckyFriedCrypto.launchStatus(uint256) (#395-397)
cooldownEnabled(bool,uint8) should be declared external:
- KentuckyFriedCrypto.cooldownEnabled(bool,uint8) (#400-403)
enable_kentuckyFrieddd(bool) should be declared external:
- KentuckyFriedCrypto.enable_kentuckyFrieddd(bool) (#452-454)
manage_kentuckyFrieddd(address[],bool) should be declared external:
- KentuckyFriedCrypto.manage_kentuckyFrieddd(address[],bool) (#456-460)
Use the external attribute for functions never called from the contract.

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.

Contract has 10% buy tax and 11% sell tax.
Taxes are suspiciously high (over 10%) and contract ownership is not renounced. Token has a high risk of becoming a honeypot.

Average 30d PancakeSwap liquidity is low.

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

Token is deployed only at one blockchain

Token has only one trading pair

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

Additional information: link

Unable to find token on CoinMarketCap

Additional information: link

Unable to find token/project description on the website or on BscScan, CoinMarketCap

Unable to find token contract audit

Unable to find KYC or doxxing proof

Unable to find audit link on the website

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

Unable to find code repository for the project

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

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

Token has no active CoinMarketCap listing / rank

Token has relatively low CoinGecko rank