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SPƆRTY [Sporty] Token

About SPƆRTY

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Token 2 years
CoinGecko 2 years
CoinMarketCap 2 years
white paper

SPORTY is a platform with many improvements, help you Bet, Stake NFT, Buy NFT, Play Casino Game in the simplest way. Previous projects of Dev Team 10x + Insurance NFT - When you bet but if you lose - while you hold NFT Insurance - We can refund the money back, depends on the NFT Tier you hold. Boosted Win Rate NFT - When you bet you can choose nft for boot your win rate if you belive this team will win this match.

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Laser Scorebeta Last Audit: 1 September 2022

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

Sporty.swapBack() (#380-433) sends eth to arbitrary user
Dangerous calls:
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in Sporty._transferFrom(address,address,uint256) (#292-318):
External calls:
- swapBack() (#303)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#391-432)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
External calls sending eth:
- swapBack() (#303)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#307)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#312)
- amountReceived = takeFee(sender,recipient,amount) (#309-310)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#359)
Apply the check-effects-interactions pattern.

Additional information: link


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

Sporty.swapBack().success (#407) is written in both
(success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
(success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
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.


Contract ownership is not renounced (belongs to a wallet)

Contract ticker (SPƆRTY) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.

Reentrancy in Sporty._transferFrom(address,address,uint256) (#292-318):
External calls:
- swapBack() (#303)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#391-432)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
External calls sending eth:
- swapBack() (#303)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
State variables written after the call(s):
- launch() (#305)
- launchedAt = block.number (#478)
Reentrancy in Sporty.constructor() (#239-258):
External calls:
- pancakeV2BNBPair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#241)
State variables written after the call(s):
- SportyInsurancePoolFeeReceiver = 0xCfBFcdb09aB63F8A40D9EE0Ede8e115177a4C30B (#254)
- _allowances[address(this)][address(router)] = ~ uint256(0) (#242)
- _balances[owner_] = _totalSupply (#256)
- autoLiquidityReceiver = 0x61455A1540492b426E78CEB39eE3A12A8Ee34A33 (#252)
- isFeeExempt[owner_] = true (#248)
- isFeeExempt[address(this)] = true (#250)
- isTxLimitExempt[owner_] = true (#249)
- isTxLimitExempt[address(this)] = true (#251)
- marketingFeeReceiver = 0x8de3a3734294524828B7Bf6b2a45e6E32A053a78 (#253)
- pairs.push(pancakeV2BNBPair) (#244)
Reentrancy in Sporty.triggerBuyback(uint256,bool) (#435-441):
External calls:
- buyTokens(amount,Staking) (#436)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#452-463)
State variables written after the call(s):
- buybackMultiplierTriggeredAt = block.timestamp (#438)
Apply the check-effects-interactions pattern.

Additional information: link

Pragma version^0.8.15 (#30) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.15 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 Sporty.swapBack() (#380-433):
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
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() (#91) is not in mixedCase
Parameter Sporty.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._liquidityFee (#496) is not in mixedCase
Parameter Sporty.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._StakingFee (#496) is not in mixedCase
Parameter Sporty.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._marketingFee (#496) is not in mixedCase
Parameter Sporty.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._SportyInsurancePool (#496) is not in mixedCase
Parameter Sporty.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._feeDenominator (#496) is not in mixedCase
Parameter Sporty.setFees(uint256,uint256,uint256,uint256,uint256,uint256)._totalSellFee (#496) is not in mixedCase
Parameter Sporty.setFeeReceivers(address,address,address)._autoLiquidityReceiver (#508) is not in mixedCase
Parameter Sporty.setFeeReceivers(address,address,address)._marketingFeeReceiver (#508) is not in mixedCase
Parameter Sporty.setFeeReceivers(address,address,address)._SportyInsurancePoolFeeReceiver (#508) is not in mixedCase
Parameter Sporty.setSwapBackSettings(bool,uint256)._enabled (#514) is not in mixedCase
Parameter Sporty.setSwapBackSettings(bool,uint256)._amount (#514) is not in mixedCase
Parameter Sporty.setTargetLiquidity(uint256,uint256)._target (#519) is not in mixedCase
Parameter Sporty.setTargetLiquidity(uint256,uint256)._denominator (#519) is not in mixedCase
Parameter Sporty.setFeesOnNormalTransfers(bool)._enabled (#544) is not in mixedCase
Parameter Sporty.clearStuckBalance(uint256,address)._ReceiverStuck (#560) is not in mixedCase
Variable Sporty.WBNB (#184) is not in mixedCase
Variable Sporty.DEAD (#185) is not in mixedCase
Variable Sporty.ZERO (#186) is not in mixedCase
Variable Sporty.Staking (#187) is not in mixedCase
Constant Sporty._name (#189) is not in UPPER_CASE_WITH_UNDERSCORES
Constant Sporty._symbol (#190) is not in UPPER_CASE_WITH_UNDERSCORES
Constant Sporty._decimals (#191) is not in UPPER_CASE_WITH_UNDERSCORES
Variable Sporty._totalSupply (#193) is not in mixedCase
Variable Sporty._maxTxAmount (#194) is not in mixedCase
Variable Sporty._balances (#196) is not in mixedCase
Variable Sporty._allowances (#197) is not in mixedCase
Variable Sporty.StakingFee (#203) is not in mixedCase
Variable Sporty.SportyInsurancePool (#205) is not in mixedCase
Variable Sporty.SportyInsurancePoolFeeReceiver (#213) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#96) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#97)
Prevent variables from having similar names.

Additional information: link

Sporty.swapBack().e (#428) is a local variable never initialized
Sporty.buyTokens(uint256,address).reason (#459) 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

Sporty.swapBack() (#380-433) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
Ensure that all the return values of the function calls are used.

Additional information: link

Sporty.setBuybackMultiplierSettings(uint256,uint256,uint256) (#466-471) should emit an event for:
- buybackMultiplierNumerator = numerator (#468)
- buybackMultiplierDenominator = denominator (#469)
- buybackMultiplierLength = length (#470)
Sporty.setTxLimit(uint256) (#482-485) should emit an event for:
- _maxTxAmount = amount (#484)
Sporty.setFees(uint256,uint256,uint256,uint256,uint256,uint256) (#496-506) should emit an event for:
- liquidityFee = _liquidityFee (#497)
- StakingFee = _StakingFee (#498)
- marketingFee = _marketingFee (#499)
- SportyInsurancePool = _SportyInsurancePool (#500)
- totalBuyFee = _liquidityFee + _StakingFee + _marketingFee + _SportyInsurancePool (#501)
- feeDenominator = _feeDenominator (#502)
- totalSellFee = _totalSellFee (#503)
Sporty.setSwapBackSettings(bool,uint256) (#514-517) should emit an event for:
- swapThreshold = _amount (#516)
Sporty.setTargetLiquidity(uint256,uint256) (#519-522) should emit an event for:
- targetLiquidity = _target (#520)
- targetLiquidityDenominator = _denominator (#521)
Sporty.setLaunchedAt(uint256) (#549-551) should emit an event for:
- launchedAt = launched_ (#550)
Emit an event for critical parameter changes.

Additional information: link

Auth.transferOwnership(address).adr (#170) lacks a zero-check on :
- owner = adr (#171)
Sporty.setFeeReceivers(address,address,address)._autoLiquidityReceiver (#508) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (#509)
Sporty.setFeeReceivers(address,address,address)._marketingFeeReceiver (#508) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#510)
Sporty.setFeeReceivers(address,address,address)._SportyInsurancePoolFeeReceiver (#508) lacks a zero-check on :
- SportyInsurancePoolFeeReceiver = _SportyInsurancePoolFeeReceiver (#511)
Sporty.clearStuckBalance(uint256,address)._ReceiverStuck (#560) lacks a zero-check on :
- address(_ReceiverStuck).transfer(amountBNB * amountPercentage / 100) (#562)
Check that the address is not zero.

Additional information: link

Variable 'Sporty.swapBack().e (#428)' in Sporty.swapBack() (#380-433) potentially used before declaration: SwapBackFailed(string(abi.encodePacked(SwapBack failed with error ,e))) (#429)
Variable 'Sporty.buyTokens(uint256,address).reason (#459)' in Sporty.buyTokens(uint256,address) (#447-464) potentially used before declaration: revert(string)(string(abi.encodePacked(Buyback failed with error ,reason))) (#460)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.

Additional information: link

Reentrancy in Sporty._transferFrom(address,address,uint256) (#292-318):
External calls:
- swapBack() (#303)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#391-432)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
External calls sending eth:
- swapBack() (#303)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
Event emitted after the call(s):
- Launched(block.number,block.timestamp) (#479)
- launch() (#305)
- Transfer(sender,address(this),feeAmount) (#360)
- amountReceived = takeFee(sender,recipient,amount) (#309-310)
- Transfer(sender,recipient,amountReceived) (#316)
Reentrancy in Sporty.buyTokens(uint256,address) (#447-464):
External calls:
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#452-463)
Event emitted after the call(s):
- BoughtBack(amount,to) (#458)
Reentrancy in Sporty.constructor() (#239-258):
External calls:
- pancakeV2BNBPair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#241)
Event emitted after the call(s):
- Transfer(address(0),owner_,_totalSupply) (#257)
Reentrancy in Sporty.swapBack() (#380-433):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#391-432)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
External calls sending eth:
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#407)
- (success,None) = address(SportyInsurancePoolFeeReceiver).call{gas: 30000,value: amountSportyInsurancePool}() (#408)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#413-424)
Event emitted after the call(s):
- AutoLiquify(amountToLiquify,amountBNBLiquidity) (#421)
- AutoLiquify(0,0) (#423)
- SwapBackSuccess(amountToSwap) (#427)
Reentrancy in Sporty.swapBack() (#380-433):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#391-432)
Event emitted after the call(s):
- SwapBackFailed(string(abi.encodePacked(SwapBack failed with error ,e))) (#429)
- SwapBackFailed(SwapBack failed without an error message from pancakeSwap) (#431)
Reentrancy in Sporty.triggerBuyback(uint256,bool) (#435-441):
External calls:
- buyTokens(amount,Staking) (#436)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#452-463)
Event emitted after the call(s):
- BuybackMultiplierActive(buybackMultiplierLength) (#439)
Apply the check-effects-interactions pattern.

Additional information: link

Sporty._transferFrom(address,address,uint256) (#292-318) uses timestamp for comparisons
Dangerous comparisons:
- require(bool)(_balances[sender] > 0) (#305)
Sporty.getTotalFee(bool) (#343-347) uses timestamp for comparisons
Dangerous comparisons:
- selling && buybackMultiplierTriggeredAt.add(buybackMultiplierLength) > block.timestamp (#345)
Sporty.shouldSwapBack() (#373-378) uses timestamp for comparisons
Dangerous comparisons:
- msg.sender != pancakeV2BNBPair && ! inSwap && swapEnabled && _balances[address(this)] >= swapThreshold (#374-377)
Sporty.isOverLiquified(uint256,uint256) (#531-533) uses timestamp for comparisons
Dangerous comparisons:
- getLiquidityBacking(accuracy) > target (#532)
Avoid relying on block.timestamp.

Additional information: link

Sporty._maxTxAmount (#194) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 10
Sporty.totalBuyFee (#207) is set pre-construction with a non-constant function or state variable:
- liquidityFee + StakingFee + marketingFee + SportyInsurancePool
Sporty.swapThreshold (#235) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 334
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

Sporty.slitherConstructorVariables() (#181-578) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#185)
Sporty.slitherConstructorVariables() (#181-578) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#186)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Sporty.DEAD (#185) should be constant
Sporty.Staking (#187) should be constant
Sporty.WBNB (#184) should be constant
Sporty.ZERO (#186) should be constant
Sporty._totalSupply (#193) 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) (#154-156)
unauthorize(address) should be declared external:
- Auth.unauthorize(address) (#158-160)
transferOwnership(address) should be declared external:
- Auth.transferOwnership(address) (#170-174)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Average 30d PancakeSwap liquidity is low.

Contract has 2% buy tax and 6% sell tax.
Taxes are low but contract ownership is not renounced. Token has a high risk of becoming a honeypot.


Token is deployed only at one blockchain


Unable to find Youtube account


Unable to find Discord account


Twitter account has few posts


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

Additional information: link


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


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


Token has no active CoinGecko listing / rank

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