Nami.addLiquidity(uint256,uint256) (#718-731) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in Nami._transfer(address,address,uint256) (#628-665):
External calls:
- swapAndLiquify(contractTokenBalance) (#649)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#707-713)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#649)
- recipient.transfer(amount) (#591)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#652)
- _balances[recipient] = _balances[recipient].add(finalAmount) (#660)
- finalAmount = takeFee(sender,recipient,amount) (#654-655)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#751)
Apply the check-effects-interactions pattern.
Additional information: link
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Nami.takeFee(address,address,uint256) (#733-756) uses a dangerous strict equality:
- launchAt.add(3) >= block.number || launchAt == 0 (#739)
Don't use strict equality to determine if an account has enough Ether or tokens.
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.
Nami.addLiquidity(uint256,uint256) (#718-731) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
Ensure that all the return values of the function calls are used.
Additional information: link
Nami.allowance(address,address).owner (#506) shadows:
- Ownable.owner() (#152-154) (function)
Nami._approve(address,address,uint256).owner (#529) shadows:
- Ownable.owner() (#152-154) (function)
Rename the local variables that shadow another component.
Additional information: link
Nami.setDistributionSettings(uint256,uint256,uint256) (#549-555) should emit an event for:
- _liquidityShare = newLiquidityShare (#550)
- _teamShare = newTeamShare (#552)
- _totalDistributionShares = _liquidityShare.add(_marketingShare).add(_teamShare) (#554)
Nami.setNumTokensBeforeSwap(uint256) (#565-567) should emit an event for:
- minimumTokensBeforeSwap = newLimit (#566)
Emit an event for critical parameter changes.
Additional information: link
Nami.setMarketingWalletAddress(address).newAddress (#569) lacks a zero-check on :
- marketingWalletAddress = address(newAddress) (#570)
Nami.setTeamWalletAddress(address).newAddress (#573) lacks a zero-check on :
- teamWalletAddress = address(newAddress) (#574)
Check that the address is not zero.
Additional information: link
Reentrancy in Nami._transfer(address,address,uint256) (#628-665):
External calls:
- swapAndLiquify(contractTokenBalance) (#649)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#707-713)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#649)
- recipient.transfer(amount) (#591)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
State variables written after the call(s):
- finalAmount = takeFee(sender,recipient,amount) (#654-655)
- launchAt = block.number (#746)
- finalAmount = takeFee(sender,recipient,amount) (#654-655)
- liq1 = liq1.add(1) (#745)
Reentrancy in Nami.changeRouterVersion(address) (#594-611):
External calls:
- newPairAddress = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#602-603)
State variables written after the call(s):
- isMarketPair[address(uniswapPair)] = true (#610)
- isWalletLimitExempt[address(uniswapPair)] = true (#609)
- uniswapPair = newPairAddress (#606)
- uniswapV2Router = _uniswapV2Router (#607)
Reentrancy in Nami.constructor() (#441-468):
External calls:
- uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#444-445)
State variables written after the call(s):
- _allowances[address(this)][address(uniswapV2Router)] = _totalSupply (#448)
- _balances[_msgSender()] = _totalSupply (#466)
- _totalDistributionShares = _liquidityShare.add(_marketingShare).add(_teamShare) (#455)
- _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(_buyTeamFee) (#453)
- _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(_sellTeamFee) (#454)
- isExcludedFromFee[owner()] = true (#450)
- isExcludedFromFee[address(this)] = true (#451)
- isMarketPair[address(uniswapPair)] = true (#464)
- isTxLimitExempt[owner()] = true (#461)
- isTxLimitExempt[address(this)] = true (#462)
- isWalletLimitExempt[owner()] = true (#457)
- isWalletLimitExempt[address(uniswapPair)] = true (#458)
- isWalletLimitExempt[address(this)] = true (#459)
- uniswapV2Router = _uniswapV2Router (#447)
Reentrancy in Nami.swapAndLiquify(uint256) (#674-696):
External calls:
- swapTokensForEth(tokensForSwap) (#679)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#707-713)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#689)
- recipient.transfer(amount) (#591)
- transferToAddressETH(teamWalletAddress,amountBNBTeam) (#692)
- recipient.transfer(amount) (#591)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
State variables written after the call(s):
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
- _allowances[owner][spender] = amount (#533)
Reentrancy in Nami.transferFrom(address,address,uint256) (#621-625):
External calls:
- _transfer(sender,recipient,amount) (#622)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#707-713)
External calls sending eth:
- _transfer(sender,recipient,amount) (#622)
- recipient.transfer(amount) (#591)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#623)
- _allowances[owner][spender] = amount (#533)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in Nami._transfer(address,address,uint256) (#628-665):
External calls:
- swapAndLiquify(contractTokenBalance) (#649)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#707-713)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#649)
- recipient.transfer(amount) (#591)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#752)
- finalAmount = takeFee(sender,recipient,amount) (#654-655)
- Transfer(sender,recipient,finalAmount) (#662)
Reentrancy in Nami.constructor() (#441-468):
External calls:
- uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#444-445)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_totalSupply) (#467)
Reentrancy in Nami.swapAndLiquify(uint256) (#674-696):
External calls:
- swapTokensForEth(tokensForSwap) (#679)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#707-713)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#689)
- recipient.transfer(amount) (#591)
- transferToAddressETH(teamWalletAddress,amountBNBTeam) (#692)
- recipient.transfer(amount) (#591)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#534)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
Reentrancy in Nami.swapTokensForEth(uint256) (#698-716):
External calls:
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#707-713)
Event emitted after the call(s):
- SwapTokensForETH(tokenAmount,path) (#715)
Reentrancy in Nami.transferFrom(address,address,uint256) (#621-625):
External calls:
- _transfer(sender,recipient,amount) (#622)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#707-713)
External calls sending eth:
- _transfer(sender,recipient,amount) (#622)
- recipient.transfer(amount) (#591)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#534)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#623)
Apply the check-effects-interactions pattern.
Additional information: link
Address.isContract(address) (#83-92) uses assembly
- INLINE ASM (#90)
Address._functionCallWithValue(address,bytes,uint256,string) (#119-136) uses assembly
- INLINE ASM (#128-131)
Do not use evm assembly.
Additional information: link
Address._functionCallWithValue(address,bytes,uint256,string) (#119-136) is never used and should be removed
Address.functionCall(address,bytes) (#102-104) is never used and should be removed
Address.functionCall(address,bytes,string) (#106-108) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#110-112) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#114-117) is never used and should be removed
Address.isContract(address) (#83-92) is never used and should be removed
Address.sendValue(address,uint256) (#94-100) is never used and should be removed
Context._msgData() (#10-13) is never used and should be removed
SafeMath.mod(uint256,uint256) (#71-73) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#75-78) is never used and should be removed
Remove unused functions.
Additional information: link
Nami._totalSupply (#423) is set pre-construction with a non-constant function or state variable:
- 100000000000 * 10 ** _decimals
Nami._maxTxAmount (#424) is set pre-construction with a non-constant function or state variable:
- 100000000000 * 10 ** _decimals
Nami._walletMax (#425) is set pre-construction with a non-constant function or state variable:
- 100000000000 * 10 ** _decimals
Nami.minimumTokensBeforeSwap (#426) is set pre-construction with a non-constant function or state variable:
- 1 * 10 ** _decimals
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
Low level call in Address.sendValue(address,uint256) (#94-100):
- (success) = recipient.call{value: amount}() (#98)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#119-136):
- (success,returndata) = target.call{value: weiValue}(data) (#122)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#209) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#210) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#226) is not in mixedCase
Function IUniswapV2Router01.WETH() (#245) is not in mixedCase
Parameter Nami.setSwapAndLiquifyEnabled(bool)._enabled (#577) is not in mixedCase
Variable Nami._balances (#411) is not in mixedCase
Variable Nami._maxTxAmount (#424) is not in mixedCase
Variable Nami._walletMax (#425) is not in mixedCase
Variable Nami._buyLiquidityFee (#470) is not in mixedCase
Variable Nami._buyMarketingFee (#471) is not in mixedCase
Variable Nami._buyTeamFee (#472) is not in mixedCase
Variable Nami._sellLiquidityFee (#474) is not in mixedCase
Variable Nami._sellMarketingFee (#475) is not in mixedCase
Variable Nami._sellTeamFee (#476) is not in mixedCase
Variable Nami._liquidityShare (#478) is not in mixedCase
Variable Nami._marketingShare (#479) is not in mixedCase
Variable Nami._teamShare (#480) is not in mixedCase
Variable Nami._totalTaxIfBuying (#482) is not in mixedCase
Variable Nami._totalTaxIfSelling (#483) is not in mixedCase
Variable Nami._totalDistributionShares (#484) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#11)" inContext (#4-14)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Reentrancy in Nami._transfer(address,address,uint256) (#628-665):
External calls:
- swapAndLiquify(contractTokenBalance) (#649)
- recipient.transfer(amount) (#591)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#649)
- recipient.transfer(amount) (#591)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#652)
- _balances[recipient] = _balances[recipient].add(finalAmount) (#660)
- finalAmount = takeFee(sender,recipient,amount) (#654-655)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#751)
- finalAmount = takeFee(sender,recipient,amount) (#654-655)
- launchAt = block.number (#746)
- finalAmount = takeFee(sender,recipient,amount) (#654-655)
- liq1 = liq1.add(1) (#745)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#752)
- finalAmount = takeFee(sender,recipient,amount) (#654-655)
- Transfer(sender,recipient,finalAmount) (#662)
Reentrancy in Nami.swapAndLiquify(uint256) (#674-696):
External calls:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#689)
- recipient.transfer(amount) (#591)
- transferToAddressETH(teamWalletAddress,amountBNBTeam) (#692)
- recipient.transfer(amount) (#591)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#689)
- recipient.transfer(amount) (#591)
- transferToAddressETH(teamWalletAddress,amountBNBTeam) (#692)
- recipient.transfer(amount) (#591)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
State variables written after the call(s):
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
- _allowances[owner][spender] = amount (#533)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#534)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#695)
Reentrancy in Nami.transferFrom(address,address,uint256) (#621-625):
External calls:
- _transfer(sender,recipient,amount) (#622)
- recipient.transfer(amount) (#591)
External calls sending eth:
- _transfer(sender,recipient,amount) (#622)
- recipient.transfer(amount) (#591)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,teamWalletAddress,block.timestamp) (#723-730)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#623)
- _allowances[owner][spender] = amount (#533)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#534)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#623)
Apply the check-effects-interactions pattern.
Additional information: link
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#250) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#251)
Prevent variables from having similar names.
Additional information: link
Ownable.waiveOwnership() (#161-164) uses literals with too many digits:
- OwnershipTransferred(_owner,address(0x000000000000000000000000000000000000dEaD)) (#162)
Ownable.waiveOwnership() (#161-164) uses literals with too many digits:
- _owner = address(0x000000000000000000000000000000000000dEaD) (#163)
Nami.slitherConstructorVariables() (#378-759) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (#409)
Nami.slitherConstructorVariables() (#378-759) uses literals with too many digits:
- _totalSupply = 100000000000 * 10 ** _decimals (#423)
Nami.slitherConstructorVariables() (#378-759) uses literals with too many digits:
- _maxTxAmount = 100000000000 * 10 ** _decimals (#424)
Nami.slitherConstructorVariables() (#378-759) uses literals with too many digits:
- _walletMax = 100000000000 * 10 ** _decimals (#425)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
Ownable.asdasd (#141) is never used in Nami (#378-759)
Ownable._lockTime (#142) is never used in Nami (#378-759)
Remove unused state variables.
Additional information: link
Nami._buyLiquidityFee (#470) should be constant
Nami._buyMarketingFee (#471) should be constant
Nami._buyTeamFee (#472) should be constant
Nami._decimals (#422) should be constant
Nami._name (#437) should be constant
Nami._sellLiquidityFee (#474) should be constant
Nami._sellMarketingFee (#475) should be constant
Nami._sellTeamFee (#476) should be constant
Nami._symbol (#438) should be constant
Ownable._lockTime (#142) should be constant
Ownable.asdasd (#141) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
waiveOwnership() should be declared external:
- Ownable.waiveOwnership() (#161-164)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#166-170)
getTime() should be declared external:
- Ownable.getTime() (#172-174)
name() should be declared external:
- Nami.name() (#486-488)
symbol() should be declared external:
- Nami.symbol() (#490-492)
decimals() should be declared external:
- Nami.decimals() (#494-496)
totalSupply() should be declared external:
- Nami.totalSupply() (#498-500)
allowance(address,address) should be declared external:
- Nami.allowance(address,address) (#506-508)
increaseAllowance(address,uint256) should be declared external:
- Nami.increaseAllowance(address,uint256) (#510-513)
decreaseAllowance(address,uint256) should be declared external:
- Nami.decreaseAllowance(address,uint256) (#515-518)
minimumTokensBeforeSwapAmount() should be declared external:
- Nami.minimumTokensBeforeSwapAmount() (#520-522)
approve(address,uint256) should be declared external:
- Nami.approve(address,uint256) (#524-527)
setMarketPairStatus(address,bool) should be declared external:
- Nami.setMarketPairStatus(address,bool) (#537-539)
setIsExcludedFromFee(address,bool) should be declared external:
- Nami.setIsExcludedFromFee(address,bool) (#545-547)
setSwapAndLiquifyEnabled(bool) should be declared external:
- Nami.setSwapAndLiquifyEnabled(bool) (#577-580)
setSwapAndLiquifyByLimitOnly(bool) should be declared external:
- Nami.setSwapAndLiquifyByLimitOnly(bool) (#582-584)
getCirculatingSupply() should be declared external:
- Nami.getCirculatingSupply() (#586-588)
changeRouterVersion(address) should be declared external:
- Nami.changeRouterVersion(address) (#594-611)
transfer(address,uint256) should be declared external:
- Nami.transfer(address,uint256) (#616-619)
transferFrom(address,address,uint256) should be declared external:
- Nami.transferFrom(address,address,uint256) (#621-625)
Use the external attribute for functions never called from the contract.
Additional information: link
Contract ticker (Nami Inu) 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.
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
Unable to find Telegram and Twitter accounts