CATGIRL [CatGirl 2022] Token

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

Catgirl2022.swapBack() (#404-446) sends eth to arbitrary user
Dangerous calls:
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in Catgirl2022._transferFrom(address,address,uint256) (#348-366):
External calls:
- swapBack() (#357)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#415-421)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
External calls sending eth:
- swapBack() (#357)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#359)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#362)
- amountReceived = takeFee(sender,recipient,amount) (#361)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#390)
Reentrancy in Catgirl2022.swapBack() (#404-446):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#415-421)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
External calls sending eth:
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
State variables written after the call(s):
- swapThreshold = largeSwapThreshold (#445)
- swapThreshold = smallSwapThreshold (#445)
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.

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.

Not a direct threat, but may indicate unreliable intentions of developer. Both name and ticker of current token are widespread, i.e. common across multiple tokens. This is slightly suspicious

Catgirl2022.swapBack() (#404-446) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
Ensure that all the return values of the function calls are used.

Additional information: link

Catgirl2022.setSwapBackSettings(bool,uint256) (#449-452) should emit an event for:
- swapThreshold = _amount (#451)
Catgirl2022.setTargetLiquidity(uint256,uint256) (#454-457) should emit an event for:
- targetLiquidity = _target (#455)
- targetLiquidityDenominator = _denominator (#456)
Catgirl2022.changeTsxnCap(uint256,uint256) (#486-489) should emit an event for:
- _tsxnCap = _totalSupply.mul(percent).div(denominator) (#488)
Catgirl2022.adjustFees(uint256,uint256,uint256,uint256) (#504-511) should emit an event for:
- liquidityFee = _liquidityFee (#505)
- giveawayFee = _giveawayFee (#506)
- marketingFee = _marketingFee (#507)
- totalFee = _liquidityFee.add(_giveawayFee).add(_marketingFee) (#508)
- feeDenominator = _feeDenominator (#509)
Emit an event for critical parameter changes.

Additional information: link

Catgirl2022.constructor().deployer (#298) lacks a zero-check on :
- marketingFeeReceiver = deployer (#304)
- giveawayReceiver = deployer (#305)
Catgirl2022.setFeeReceivers(address,address,address)._autoLiquidityReceiver (#537) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (#538)
Catgirl2022.setFeeReceivers(address,address,address)._marketingFeeReceiver (#537) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#539)
Catgirl2022.setFeeReceivers(address,address,address)._giveawayReceiver (#537) lacks a zero-check on :
- giveawayReceiver = _giveawayReceiver (#540)
Check that the address is not zero.

Additional information: link

Reentrancy in Catgirl2022.constructor() (#292-311):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#294)
State variables written after the call(s):
- _allowances[address(this)][address(router)] = type()(uint256).max (#295)
- _balances[deployer] = _totalSupply (#309)
- _maxWalletSize = _totalSupply / 200 (#296)
- autoLiquidityReceiver = DEAD (#306)
- activateAntiSnipe() (#307)
- feeDenominator = 1000 (#518)
- activateAntiSnipe() (#307)
- giveawayFee = 0 (#515)
- giveawayReceiver = deployer (#305)
- isFeeExempt[address(this)] = true (#299)
- isFeeExempt[deployer] = true (#300)
- isTxLimitExempt[address(this)] = true (#301)
- isTxLimitExempt[address(router)] = true (#302)
- isTxLimitExempt[deployer] = true (#303)
- activateAntiSnipe() (#307)
- liquidityFee = 0 (#514)
- activateAntiSnipe() (#307)
- marketingFee = 999 (#516)
- marketingFeeReceiver = deployer (#304)
- activateAntiSnipe() (#307)
- totalFee = 999 (#517)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Catgirl2022._transferFrom(address,address,uint256) (#348-366):
External calls:
- swapBack() (#357)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#415-421)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
External calls sending eth:
- swapBack() (#357)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#391)
- amountReceived = takeFee(sender,recipient,amount) (#361)
- Transfer(sender,recipient,amountReceived) (#364)
Reentrancy in Catgirl2022.constructor() (#292-311):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#294)
Event emitted after the call(s):
- Transfer(address(0),deployer,_totalSupply) (#310)
Reentrancy in Catgirl2022.swapBack() (#404-446):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#415-421)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
External calls sending eth:
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#434-441)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#442)
Apply the check-effects-interactions pattern.

Additional information: link

Context._msgData() (#23-26) is never used and should be removed
Remove unused functions.

Additional information: link

Catgirl2022._tsxnCap (#257) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 10) / 1000
Catgirl2022._maxWalletSize (#258) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 10) / 1000
Catgirl2022.smallSwapThreshold (#285) is set pre-construction with a non-constant function or state variable:
- _totalSupply.mul(267061517).div(100000000000)
Catgirl2022.largeSwapThreshold (#286) is set pre-construction with a non-constant function or state variable:
- _totalSupply.mul(381170306).div(100000000000)
Catgirl2022.swapThreshold (#288) is set pre-construction with a non-constant function or state variable:
- smallSwapThreshold
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^0.8.11 (#16) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.11 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 Catgirl2022.swapBack() (#404-446):
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#429)
- (success2) = address(giveawayReceiver).call{gas: 30000,value: amountBNBGiveaway}() (#430)
Low level call in Catgirl2022.clearBalance() (#543-546):
- (success) = address(autoLiquidityReceiver).call{gas: 30000,value: address(this).balance}() (#544)
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() (#198) is not in mixedCase
Parameter Catgirl2022.setSwapBackSettings(bool,uint256)._enabled (#449) is not in mixedCase
Parameter Catgirl2022.setSwapBackSettings(bool,uint256)._amount (#449) is not in mixedCase
Parameter Catgirl2022.setTargetLiquidity(uint256,uint256)._target (#454) is not in mixedCase
Parameter Catgirl2022.setTargetLiquidity(uint256,uint256)._denominator (#454) is not in mixedCase
Parameter Catgirl2022.adjustFees(uint256,uint256,uint256,uint256)._liquidityFee (#504) is not in mixedCase
Parameter Catgirl2022.adjustFees(uint256,uint256,uint256,uint256)._giveawayFee (#504) is not in mixedCase
Parameter Catgirl2022.adjustFees(uint256,uint256,uint256,uint256)._marketingFee (#504) is not in mixedCase
Parameter Catgirl2022.adjustFees(uint256,uint256,uint256,uint256)._feeDenominator (#504) is not in mixedCase
Parameter Catgirl2022.setFeeReceivers(address,address,address)._autoLiquidityReceiver (#537) is not in mixedCase
Parameter Catgirl2022.setFeeReceivers(address,address,address)._marketingFeeReceiver (#537) is not in mixedCase
Parameter Catgirl2022.setFeeReceivers(address,address,address)._giveawayReceiver (#537) is not in mixedCase
Constant Catgirl2022.mainnetRouter (#247) is not in UPPER_CASE_WITH_UNDERSCORES
Variable Catgirl2022._name (#252) is not in mixedCase
Variable Catgirl2022._symbol (#253) is not in mixedCase
Constant Catgirl2022._decimals (#254) is not in UPPER_CASE_WITH_UNDERSCORES
Variable Catgirl2022._totalSupply (#256) is not in mixedCase
Variable Catgirl2022._tsxnCap (#257) is not in mixedCase
Variable Catgirl2022._maxWalletSize (#258) is not in mixedCase
Variable Catgirl2022._balances (#260) is not in mixedCase
Variable Catgirl2022._allowances (#261) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#24)" inContext (#18-27)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#203) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#204)
Prevent variables from having similar names.

Additional information: link

Catgirl2022.slitherConstructorVariables() (#244-550) uses literals with too many digits:
- _totalSupply = 100000000000 * (10 ** _decimals) (#256)
Catgirl2022.slitherConstructorVariables() (#244-550) uses literals with too many digits:
- smallSwapThreshold = _totalSupply.mul(267061517).div(100000000000) (#285)
Catgirl2022.slitherConstructorVariables() (#244-550) uses literals with too many digits:
- largeSwapThreshold = _totalSupply.mul(381170306).div(100000000000) (#286)
Catgirl2022.slitherConstructorConstantVariables() (#244-550) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#249)
Catgirl2022.slitherConstructorConstantVariables() (#244-550) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#250)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Catgirl2022._name (#252) should be constant
Catgirl2022._symbol (#253) should be constant
Catgirl2022._totalSupply (#256) should be constant
Catgirl2022.charityFee (#269) should be constant
Catgirl2022.devFee (#270) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#175-178)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#184-188)
Use the external attribute for functions never called from the contract.

Additional information: link

Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.

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

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find PancakeSwap trading pair to compute liquidity.

Unable to find PancakeSwap trading pair to compute volume.

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

Unable to find website, listings and other project-related information

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank