About SWORDB
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Sword Battle Game is a Play-to-earn Idle Defense game built on BSC with a sophisticated NFT warriors fighting
Home: https://swordbattlegame.com/
Group chat: https://t.me/swordbattlebsc
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Laser Scorebeta Last Audit: 21 June 2022
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SwordBattle.swapTokensForEth(uint256) (#421-444) sends eth to arbitrary user
Dangerous calls:
- _developmentWallet.transfer(development) (#442)
- _marketingWallet.transfer(marketing) (#443)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in SwordBattle._transfer(address,address,uint256) (#369-419):
External calls:
- swapTokensForEth(numTokensSellToAddToLiquidity) (#409)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#431-437)
External calls sending eth:
- swapTokensForEth(numTokensSellToAddToLiquidity) (#409)
- _developmentWallet.transfer(development) (#442)
- _marketingWallet.transfer(marketing) (#443)
State variables written after the call(s):
- _transferStandard(from,to,amount,currentFee) (#418)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#481)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#482)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidityFee) (#464)
- _transferStandard(from,to,amount,currentFee) (#418)
- _rTotal = _rTotal.sub(rFee) (#471)
Apply the check-effects-interactions pattern.
Additional information: link
SwordBattle.withdrawResidualErc20(IERC20,address) (#544-551) ignores return value by token.transfer(to,erc20balance) (#550)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.
Additional information: link
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
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.
Contract ownership is not renounced (belongs to a wallet)
SwordBattle._transferStandard(address,address,uint256,uint256) (#446-468) performs a multiplication on the result of a division:
-tFee = tAmount.mul(currentFee).mul(1).div(1000) (#453)
-rFee = tFee.mul(currentRate) (#459)
SwordBattle._transferStandard(address,address,uint256,uint256) (#446-468) performs a multiplication on the result of a division:
-tLiquidityFee = tAmount.mul(currentFee).mul(9).div(1000) (#454)
-rLiquidityFee = tLiquidityFee.mul(currentRate) (#460)
Consider ordering multiplication before division.
Additional information: link
SwordBattle.allowance(address,address).owner (#276) shadows:
- Ownable.owner() (#118-120) (function)
SwordBattle._approve(address,address,uint256).owner (#359) shadows:
- Ownable.owner() (#118-120) (function)
Rename the local variables that shadow another component.
Additional information: link
Ownable.constructor().msgSender (#113) lacks a zero-check on :
- _owner = msgSender (#114)
SwordBattle.constructor(address,address,address).development (#221) lacks a zero-check on :
- _developmentWallet = development (#225)
SwordBattle.constructor(address,address,address).marketing (#222) lacks a zero-check on :
- _marketingWallet = marketing (#226)
SwordBattle.constructor(address,address,address).router (#223) lacks a zero-check on :
- _routerAddress = router (#228)
SwordBattle.setdevelopmentWallet(address)._address (#323) lacks a zero-check on :
- _developmentWallet = _address (#324)
SwordBattle.setMarketingWallet(address)._address (#327) lacks a zero-check on :
- _marketingWallet = _address (#328)
SwordBattle.withdrawResidualBnb(address).newAddress (#540) lacks a zero-check on :
- address(newAddress).transfer(address(this).balance) (#541)
Check that the address is not zero.
Additional information: link
Reentrancy in SwordBattle._transfer(address,address,uint256) (#369-419):
External calls:
- swapTokensForEth(numTokensSellToAddToLiquidity) (#409)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#431-437)
External calls sending eth:
- swapTokensForEth(numTokensSellToAddToLiquidity) (#409)
- _developmentWallet.transfer(development) (#442)
- _marketingWallet.transfer(marketing) (#443)
State variables written after the call(s):
- _transferStandard(from,to,amount,currentFee) (#418)
- _tFeeTotal = _tFeeTotal.add(tFee) (#472)
Reentrancy in SwordBattle.transferFrom(address,address,uint256) (#294-309):
External calls:
- _transfer(sender,recipient,amount) (#299)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#431-437)
External calls sending eth:
- _transfer(sender,recipient,amount) (#299)
- _developmentWallet.transfer(development) (#442)
- _marketingWallet.transfer(marketing) (#443)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#300-307)
- _allowances[owner][spender] = amount (#365)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in SwordBattle._transfer(address,address,uint256) (#369-419):
External calls:
- swapTokensForEth(numTokensSellToAddToLiquidity) (#409)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#431-437)
External calls sending eth:
- swapTokensForEth(numTokensSellToAddToLiquidity) (#409)
- _developmentWallet.transfer(development) (#442)
- _marketingWallet.transfer(marketing) (#443)
Event emitted after the call(s):
- DistributedFee(sender,Fee split between all holders!,tFee) (#466)
- _transferStandard(from,to,amount,currentFee) (#418)
- Transfer(sender,recipient,tTransferAmount) (#467)
- _transferStandard(from,to,amount,currentFee) (#418)
Reentrancy in SwordBattle.constructor(address,address,address) (#220-241):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#238-239)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#240)
Reentrancy in SwordBattle.transferFrom(address,address,uint256) (#294-309):
External calls:
- _transfer(sender,recipient,amount) (#299)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#431-437)
External calls sending eth:
- _transfer(sender,recipient,amount) (#299)
- _developmentWallet.transfer(development) (#442)
- _marketingWallet.transfer(marketing) (#443)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#366)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#300-307)
Apply the check-effects-interactions pattern.
Additional information: link
SwordBattle._previousBuyFee (#195) is set pre-construction with a non-constant function or state variable:
- _buyFee
SwordBattle._previousSellFee (#198) is set pre-construction with a non-constant function or state variable:
- _sellFee
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
Function IUniswapV2Router02.WETH() (#159) is not in mixedCase
Parameter SwordBattle.setIsExcludedFromFee(address,bool)._address (#311) is not in mixedCase
Parameter SwordBattle.setIsExcludedFromFee(address,bool)._isExcluded (#311) is not in mixedCase
Parameter SwordBattle.setdevelopmentWallet(address)._address (#323) is not in mixedCase
Parameter SwordBattle.setMarketingWallet(address)._address (#327) is not in mixedCase
Parameter SwordBattle.setSwapAndLiquifyEnabled(bool)._enabled (#535) is not in mixedCase
Constant SwordBattle._name (#180) is not in UPPER_CASE_WITH_UNDERSCORES
Constant SwordBattle._symbol (#181) is not in UPPER_CASE_WITH_UNDERSCORES
Constant SwordBattle._decimals (#182) is not in UPPER_CASE_WITH_UNDERSCORES
Variable SwordBattle._isExcludedFromFee (#186) is not in mixedCase
Constant SwordBattle._tTotal (#190) is not in UPPER_CASE_WITH_UNDERSCORES
Variable SwordBattle._buyFee (#194) is not in mixedCase
Variable SwordBattle._sellFee (#197) is not in mixedCase
Variable SwordBattle._developmentWallet (#200) is not in mixedCase
Variable SwordBattle._marketingWallet (#201) is not in mixedCase
Variable SwordBattle._routerAddress (#203) is not in mixedCase
Variable SwordBattle._maxTxAmount (#208) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Reentrancy in SwordBattle._transfer(address,address,uint256) (#369-419):
External calls:
- swapTokensForEth(numTokensSellToAddToLiquidity) (#409)
- _developmentWallet.transfer(development) (#442)
- _marketingWallet.transfer(marketing) (#443)
State variables written after the call(s):
- _transferStandard(from,to,amount,currentFee) (#418)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#481)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#482)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidityFee) (#464)
- _transferStandard(from,to,amount,currentFee) (#418)
- _rTotal = _rTotal.sub(rFee) (#471)
- _transferStandard(from,to,amount,currentFee) (#418)
- _tFeeTotal = _tFeeTotal.add(tFee) (#472)
Event emitted after the call(s):
- DistributedFee(sender,Fee split between all holders!,tFee) (#466)
- _transferStandard(from,to,amount,currentFee) (#418)
- Transfer(sender,recipient,tTransferAmount) (#467)
- _transferStandard(from,to,amount,currentFee) (#418)
Reentrancy in SwordBattle.transferFrom(address,address,uint256) (#294-309):
External calls:
- _transfer(sender,recipient,amount) (#299)
- _developmentWallet.transfer(development) (#442)
- _marketingWallet.transfer(marketing) (#443)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#300-307)
- _allowances[owner][spender] = amount (#365)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#366)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#300-307)
Apply the check-effects-interactions pattern.
Additional information: link
Variable SwordBattle._transferStandard(address,address,uint256,uint256).rLiquidityFee (#460) is too similar to SwordBattle._transferStandard(address,address,uint256,uint256).tLiquidityFee (#454)
Variable SwordBattle._transferStandard(address,address,uint256,uint256).rTransferAmount (#461) is too similar to SwordBattle._transferStandard(address,address,uint256,uint256).tTransferAmount (#455)
Variable SwordBattle._calculateReflectTransfer(address,address,uint256,uint256).rTransferAmount (#479) is too similar to SwordBattle._transferStandard(address,address,uint256,uint256).tTransferAmount (#455)
Prevent variables from having similar names.
Additional information: link
SwordBattle.slitherConstructorConstantVariables() (#178-553) uses literals with too many digits:
- _tTotal = 10000000 * 10 ** 9 (#190)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
Ownable._previousOwner (#106) is never used in SwordBattle (#178-553)
SwordBattle._tOwned (#184) is never used in SwordBattle (#178-553)
Remove unused state variables.
Additional information: link
Ownable._previousOwner (#106) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#127-130)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#132-139)
name() should be declared external:
- SwordBattle.name() (#243-245)
symbol() should be declared external:
- SwordBattle.symbol() (#247-249)
decimals() should be declared external:
- SwordBattle.decimals() (#251-253)
totalSupply() should be declared external:
- SwordBattle.totalSupply() (#255-257)
humanBalanceOf(address) should be declared external:
- SwordBattle.humanBalanceOf(address) (#263-265)
transfer(address,uint256) should be declared external:
- SwordBattle.transfer(address,uint256) (#267-274)
allowance(address,address) should be declared external:
- SwordBattle.allowance(address,address) (#276-283)
approve(address,uint256) should be declared external:
- SwordBattle.approve(address,uint256) (#285-292)
transferFrom(address,address,uint256) should be declared external:
- SwordBattle.transferFrom(address,address,uint256) (#294-309)
isExcludedFromFee(address) should be declared external:
- SwordBattle.isExcludedFromFee(address) (#318-320)
Use the external attribute for functions never called from the contract.
Additional information: link
Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.
Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.
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 KYC or doxxing proof
Unable to find audit link on the website
Unable to find token on CoinGecko
Additional information: link
Unable to find token on CoinMarketCap
Additional information: link
Token is not listed at Mobula.Finance
Additional information: link
Unable to find code repository for the project
Young tokens have high risks of scam / price dump / death
Token has no active CoinGecko listing / rank
Token has no active CoinMarketCap listing / rank
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Price for SWORDB
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