MetaTariff is geared to be a peer-to-administration (“P2A”) system within the peer-to-peer (“P2P”) universe (presently appropriate as the “metaverse”). Now with a vision for allowing all P2P online payments to be sent with an embedded feature - the transaction tariff (or “riff or “toll”) which is secondary as a P2A transaction sent as part of the same P2P primary transaction. Similar in appearance, but not in nature, to a gas fee on a respective network, the terms gas fee and riff should not be used synonymously.
In the age of uncertainty and decentralized environments, an important and controversial topic that stands in the way continues to be the taxation of cryptocurrency transactions and/or gains, not only in the “United” States of America, but across all nations on earth. The solution to date includes nothing but a set of codes within a certain manual which reads to over 90% of the P2P community as nothing more than overly intricate and much more convoluted set of laws - deemed unnecessary. Throughout history, the idea of taxation has long been political and controversial more times than not since the laws are ever evolving with changes in leadership. At MetaTariff, our approach to the solution is not anarchist in nature so to avoid corruption and disorganization. But an innovative resolve that brings regulators and the crypto networks together to effectively find a fair and beneficial resolve for all; nationally, internationally, and even intergalactically! The difference includes involving an independent third party that has complete oversight and decision making from a Decentralized Autonomous Organization (“DAO”), such as MetaTariff, to implement and assist with adoption for cryptocurrencies, blockchain networks, and administrative bodies for all nations.
The present discussion to bring more structure and acceptance to crypto has been the dreaded regulation of cryptocurrency. Our proposal is quite the opposite; deregulation (“deReg”) with the adoption of two tokens MetaTariff ($RIFF) as the DAO and MetaToll ($TAX) as the Toll currency (also to be synonymous with a “riff”). Since the administrator in the P2A transaction is an independent and non-governmental third party, it allows society to move away from allowing governments to decide what is best for them without input from the citizens; we now will decide what is best for ourselves including the crypto world and metaverses.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
DxFeeToken.addLiquidity(uint256,uint256) (#1446-1513) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in DxFeeToken._transfer(address,address,uint256) (#1304-1357):
External calls:
- swapAndLiquify(contractTokenBalance) (#1341)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1391-1443)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.swapExactTokensForBNBSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1401-1441)
- uniswapV2Router.swapExactTokensForAVAXSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1409-1439)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.swapExactTokensForHTSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1418-1436)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1427-1433)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1341)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#1240)
- _rOwned[_devWalletAddress] = _rOwned[_devWalletAddress].add(rDev) (#1248)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1548)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1538)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1571)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1560)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1539)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1561)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1550)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1573)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _rTotal = _rTotal.sub(rFee) (#1581)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _sellTaxFee = 0 (#1282)
- restoreAllFee() (#1356)
- _sellTaxFee = _previousSellFee (#1289)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#1242)
- _tOwned[_devWalletAddress] = _tOwned[_devWalletAddress].add(tDev) (#1250)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1570)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1559)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1549)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1572)
Apply the check-effects-interactions pattern.
Additional information: link
DxFeeToken._isExcluded (#942) is never initialized. It is used in:
- DxFeeToken.balanceOf(address) (#1063-1066)
- DxFeeToken.isExcludedFromReward(address) (#1098-1100)
- DxFeeToken.deliver(uint256) (#1106-1113)
- DxFeeToken._takeLiquidity(uint256) (#1237-1243)
- DxFeeToken._takeDev(uint256) (#1245-1251)
- DxFeeToken._tokenTransfer(address,address,uint256,bool) (#1516-1534)
DxFeeToken._excluded (#945) is never initialized. It is used in:
- DxFeeToken._getCurrentSupply() (#1225-1235)
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
DxFeeToken.setTaxFeePercent(uint256) (#1142-1145) contains a tautology or contradiction:
- require(bool,string)(taxFee >= 0 && taxFee <= maxTaxFee,taxFee out of range) (#1143)
DxFeeToken.setLiquidityFeePercent(uint256) (#1147-1150) contains a tautology or contradiction:
- require(bool,string)(liquidityFee >= 0 && liquidityFee <= maxLiqFee,liquidityFee out of range) (#1148)
DxFeeToken.setDevFeePercent(uint256) (#1152-1155) contains a tautology or contradiction:
- require(bool,string)(devFee >= 0 && devFee <= maxDevFee,teamFee out of range) (#1153)
DxFeeToken.setSellTaxFeePercent(uint256) (#1157-1160) contains a tautology or contradiction:
- require(bool,string)(sellTaxFee >= 0 && sellTaxFee <= maxSellTaxFee,taxFee out of range) (#1158)
Fix the incorrect comparison by changing the value type or the comparison.
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)
DxFeeToken.dead (#927) should be constant
DxFeeToken.mintedByDxsale (#953) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
DxFeeToken.addLiquidity(uint256,uint256) (#1446-1513) ignores return value by uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
DxFeeToken.addLiquidity(uint256,uint256) (#1446-1513) ignores return value by uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
DxFeeToken.addLiquidity(uint256,uint256) (#1446-1513) ignores return value by uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
DxFeeToken.addLiquidity(uint256,uint256) (#1446-1513) ignores return value by uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
DxFeeToken.addLiquidity(uint256,uint256) (#1446-1513) ignores return value by uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
Ensure that all the return values of the function calls are used.
Additional information: link
DxFeeToken.setTaxFeePercent(uint256) (#1142-1145) should emit an event for:
- _taxFee = taxFee (#1144)
DxFeeToken.setLiquidityFeePercent(uint256) (#1147-1150) should emit an event for:
- _liquidityFee = liquidityFee (#1149)
DxFeeToken.setDevFeePercent(uint256) (#1152-1155) should emit an event for:
- _devFee = devFee (#1154)
DxFeeToken.setSellTaxFeePercent(uint256) (#1157-1160) should emit an event for:
- _sellTaxFee = sellTaxFee (#1159)
DxFeeToken.setMaxTxPercent(uint256) (#1162-1167) should emit an event for:
- _maxTxAmount = _tTotal.mul(maxTxPercent).div(10 ** 2) (#1164-1166)
Emit an event for critical parameter changes.
Additional information: link
Reentrancy in DxFeeToken._transfer(address,address,uint256) (#1304-1357):
External calls:
- swapAndLiquify(contractTokenBalance) (#1341)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1391-1443)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.swapExactTokensForBNBSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1401-1441)
- uniswapV2Router.swapExactTokensForAVAXSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1409-1439)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.swapExactTokensForHTSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1418-1436)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1427-1433)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1341)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _devFee = 0 (#1281)
- restoreAllFee() (#1356)
- _devFee = _previousDevFee (#1288)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _liquidityFee = 0 (#1280)
- restoreAllFee() (#1356)
- _liquidityFee = _previousLiquidityFee (#1287)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _previousDevFee = _devFee (#1276)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _previousLiquidityFee = _liquidityFee (#1275)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _previousSellFee = _sellTaxFee (#1277)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _previousTaxFee = _taxFee (#1274)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _tFeeTotal = _tFeeTotal.add(tFee) (#1582)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- _taxFee = 0 (#1279)
- restoreAllFee() (#1356)
- _taxFee = _previousTaxFee (#1286)
Reentrancy in DxFeeToken.constructor(address,string,string,uint8,uint256,uint8[4],uint256[5],address,address,address) (#993-1039):
External calls:
- uniswapV2Pair = UniSwapFactory(_uniswapV2Router.factory()).createPair(address(this),basePair) (#1024-1025)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#1031)
- _isExcludedFromFee[address(this)] = true (#1032)
- _isExcludedFromFee[_devWalletAddress] = true (#1033)
- _isdevWallet[_devWalletAddress] = true (#1036)
- uniswapV2Router = _uniswapV2Router (#1028)
Reentrancy in DxFeeToken.swapAndLiquify(uint256) (#1359-1380):
External calls:
- swapTokensForEth(half) (#1371)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1391-1443)
- uniswapV2Router.swapExactTokensForBNBSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1401-1441)
- uniswapV2Router.swapExactTokensForAVAXSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1409-1439)
- uniswapV2Router.swapExactTokensForHTSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1418-1436)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1427-1433)
- addLiquidity(otherHalf,newBalance) (#1377)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1377)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1377)
- _allowances[owner][spender] = amount (#1300)
Reentrancy in DxFeeToken.transferFrom(address,address,uint256) (#1082-1086):
External calls:
- _transfer(sender,recipient,amount) (#1083)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1391-1443)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.swapExactTokensForBNBSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1401-1441)
- uniswapV2Router.swapExactTokensForAVAXSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1409-1439)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.swapExactTokensForHTSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1418-1436)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1427-1433)
External calls sending eth:
- _transfer(sender,recipient,amount) (#1083)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#1084)
- _allowances[owner][spender] = amount (#1300)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in DxFeeToken._transfer(address,address,uint256) (#1304-1357):
External calls:
- swapAndLiquify(contractTokenBalance) (#1341)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1391-1443)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.swapExactTokensForBNBSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1401-1441)
- uniswapV2Router.swapExactTokensForAVAXSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1409-1439)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.swapExactTokensForHTSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1418-1436)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1427-1433)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1341)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#1543)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- Transfer(sender,recipient,tTransferAmount) (#1565)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- Transfer(sender,recipient,tTransferAmount) (#1554)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
- Transfer(sender,recipient,tTransferAmount) (#1577)
- _tokenTransfer(from,to,amount,takeFee) (#1353)
Reentrancy in DxFeeToken.constructor(address,string,string,uint8,uint256,uint8[4],uint256[5],address,address,address) (#993-1039):
External calls:
- uniswapV2Pair = UniSwapFactory(_uniswapV2Router.factory()).createPair(address(this),basePair) (#1024-1025)
Event emitted after the call(s):
- Transfer(address(0),tokenOwner,_tTotal) (#1038)
Reentrancy in DxFeeToken.swapAndLiquify(uint256) (#1359-1380):
External calls:
- swapTokensForEth(half) (#1371)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1391-1443)
- uniswapV2Router.swapExactTokensForBNBSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1401-1441)
- uniswapV2Router.swapExactTokensForAVAXSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1409-1439)
- uniswapV2Router.swapExactTokensForHTSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1418-1436)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1427-1433)
- addLiquidity(otherHalf,newBalance) (#1377)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1377)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1301)
- addLiquidity(otherHalf,newBalance) (#1377)
- SwapAndLiquify(half,newBalance,otherHalf) (#1379)
Reentrancy in DxFeeToken.transferFrom(address,address,uint256) (#1082-1086):
External calls:
- _transfer(sender,recipient,amount) (#1083)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1391-1443)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.swapExactTokensForBNBSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1401-1441)
- uniswapV2Router.swapExactTokensForAVAXSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1409-1439)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.swapExactTokensForHTSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1418-1436)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1427-1433)
External calls sending eth:
- _transfer(sender,recipient,amount) (#1083)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1452-1511)
- uniswapV2Router.addLiquidityBNB{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1464-1510)
- uniswapV2Router.addLiquidityAVAX{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1475-1508)
- uniswapV2Router.addLiquidityHT{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1486-1506)
- uniswapV2Router.addLiquidityETH{value: ETHAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (#1498-1505)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1301)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#1084)
Apply the check-effects-interactions pattern.
Additional information: link
Address.verifyCallResult(bool,bytes,string) (#524-544) uses assembly
- INLINE ASM (#536-539)
Do not use evm assembly.
Additional information: link
DxFeeToken._previousDevFee (#965) is set pre-construction with a non-constant function or state variable:
- _devFee
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) (#383-388):
- (success) = recipient.call{value: amount}() (#386)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#451-462):
- (success,returndata) = target.call{value: value}(data) (#460)
Low level call in Address.functionStaticCall(address,bytes,string) (#480-489):
- (success,returndata) = target.staticcall(data) (#487)
Low level call in Address.functionDelegateCall(address,bytes,string) (#507-516):
- (success,returndata) = target.delegatecall(data) (#514)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#725) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#726)
Variable DxFeeToken._devWalletAddress (#946) is too similar to DxFeeToken.constructor(address,string,string,uint8,uint256,uint8[4],uint256[5],address,address,address).devWalletAddress_ (#993)
Variable DxFeeToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1558) is too similar to DxFeeToken._transferToExcluded(address,address,uint256).tTransferAmount (#1547)
Variable DxFeeToken.reflectionFromToken(uint256,bool).rTransferAmount (#1121) is too similar to DxFeeToken._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable DxFeeToken._transferToExcluded(address,address,uint256).rTransferAmount (#1547) is too similar to DxFeeToken._transferToExcluded(address,address,uint256).tTransferAmount (#1547)
Variable DxFeeToken._transferBothExcluded(address,address,uint256).rTransferAmount (#1569) is too similar to DxFeeToken._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable DxFeeToken._transferStandard(address,address,uint256).rTransferAmount (#1537) is too similar to DxFeeToken._transferStandard(address,address,uint256).tTransferAmount (#1537)
Variable DxFeeToken.reflectionFromToken(uint256,bool).rTransferAmount (#1121) is too similar to DxFeeToken._getTValues(uint256).tTransferAmount (#1207)
Variable DxFeeToken._transferBothExcluded(address,address,uint256).rTransferAmount (#1569) is too similar to DxFeeToken._getTValues(uint256).tTransferAmount (#1207)
Variable DxFeeToken._transferStandard(address,address,uint256).rTransferAmount (#1537) is too similar to DxFeeToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1558)
Variable DxFeeToken.reflectionFromToken(uint256,bool).rTransferAmount (#1121) is too similar to DxFeeToken._transferStandard(address,address,uint256).tTransferAmount (#1537)
Variable DxFeeToken._getValues(uint256).rTransferAmount (#1199) is too similar to DxFeeToken._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable DxFeeToken._transferStandard(address,address,uint256).rTransferAmount (#1537) is too similar to DxFeeToken._getValues(uint256).tTransferAmount (#1198)
Variable DxFeeToken._transferStandard(address,address,uint256).rTransferAmount (#1537) is too similar to DxFeeToken._transferToExcluded(address,address,uint256).tTransferAmount (#1547)
Variable DxFeeToken.reflectionFromToken(uint256,bool).rTransferAmount (#1121) is too similar to DxFeeToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1558)
Variable DxFeeToken._getValues(uint256).rTransferAmount (#1199) is too similar to DxFeeToken._getTValues(uint256).tTransferAmount (#1207)
Variable DxFeeToken.reflectionFromToken(uint256,bool).rTransferAmount (#1121) is too similar to DxFeeToken._getValues(uint256).tTransferAmount (#1198)
Variable DxFeeToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1558) is too similar to DxFeeToken._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable DxFeeToken.reflectionFromToken(uint256,bool).rTransferAmount (#1121) is too similar to DxFeeToken._transferToExcluded(address,address,uint256).tTransferAmount (#1547)
Variable DxFeeToken._transferToExcluded(address,address,uint256).rTransferAmount (#1547) is too similar to DxFeeToken._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable DxFeeToken._transferToExcluded(address,address,uint256).rTransferAmount (#1547) is too similar to DxFeeToken._getTValues(uint256).tTransferAmount (#1207)
Variable DxFeeToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1558) is too similar to DxFeeToken._getTValues(uint256).tTransferAmount (#1207)
Variable DxFeeToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1558) is too similar to DxFeeToken._transferStandard(address,address,uint256).tTransferAmount (#1537)
Variable DxFeeToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1558) is too similar to DxFeeToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1558)
Variable DxFeeToken._transferStandard(address,address,uint256).rTransferAmount (#1537) is too similar to DxFeeToken._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable DxFeeToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1558) is too similar to DxFeeToken._getValues(uint256).tTransferAmount (#1198)
Variable DxFeeToken._transferStandard(address,address,uint256).rTransferAmount (#1537) is too similar to DxFeeToken._getTValues(uint256).tTransferAmount (#1207)
Variable DxFeeToken._transferBothExcluded(address,address,uint256).rTransferAmount (#1569) is too similar to DxFeeToken._transferStandard(address,address,uint256).tTransferAmount (#1537)
Variable DxFeeToken._getValues(uint256).rTransferAmount (#1199) is too similar to DxFeeToken._transferToExcluded(address,address,uint256).tTransferAmount (#1547)
Variable DxFeeToken._getRValues(uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1216) is too similar to DxFeeToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1558)
Variable DxFeeToken._transferBothExcluded(address,address,uint256).rTransferAmount (#1569) is too similar to DxFeeToken._getValues(uint256).tTransferAmount (#1198)
Variable DxFeeToken._getRValues(uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1216) is too similar to DxFeeToken._transferToExcluded(address,address,uint256).tTransferAmount (#1547)
Variable DxFeeToken._getValues(uint256).rTransferAmount (#1199) is too similar to DxFeeToken._transferStandard(address,address,uint256).tTransferAmount (#1537)
Variable DxFeeToken._transferToExcluded(address,address,uint256).rTransferAmount (#1547) is too similar to DxFeeToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1558)
Variable DxFeeToken._getValues(uint256).rTransferAmount (#1199) is too similar to DxFeeToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1558)
Variable DxFeeToken._getRValues(uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1216) is too similar to DxFeeToken._transferStandard(address,address,uint256).tTransferAmount (#1537)
Variable DxFeeToken._getValues(uint256).rTransferAmount (#1199) is too similar to DxFeeToken._getValues(uint256).tTransferAmount (#1198)
Variable DxFeeToken._getRValues(uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1216) is too similar to DxFeeToken._getValues(uint256).tTransferAmount (#1198)
Variable DxFeeToken._getRValues(uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1216) is too similar to DxFeeToken._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable DxFeeToken._getRValues(uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1216) is too similar to DxFeeToken._getTValues(uint256).tTransferAmount (#1207)
Variable DxFeeToken._transferToExcluded(address,address,uint256).rTransferAmount (#1547) is too similar to DxFeeToken._transferStandard(address,address,uint256).tTransferAmount (#1537)
Variable DxFeeToken._transferToExcluded(address,address,uint256).rTransferAmount (#1547) is too similar to DxFeeToken._getValues(uint256).tTransferAmount (#1198)
Variable DxFeeToken._transferBothExcluded(address,address,uint256).rTransferAmount (#1569) is too similar to DxFeeToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1558)
Variable DxFeeToken._transferBothExcluded(address,address,uint256).rTransferAmount (#1569) is too similar to DxFeeToken._transferToExcluded(address,address,uint256).tTransferAmount (#1547)
Prevent variables from having similar names.
Additional information: link
DxFeeToken.slitherConstructorVariables() (#924-1611) uses literals with too many digits:
- dead = 0x000000000000000000000000000000000000dEaD (#927)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
DxFeeToken.allowance(address,address).owner (#1073) shadows:
- Ownable.owner() (#574-576) (function)
DxFeeToken._approve(address,address,uint256).owner (#1296) shadows:
- Ownable.owner() (#574-576) (function)
Rename the local variables that shadow another component.
Additional information: link
DxFeeToken.constructor(address,string,string,uint8,uint256,uint8[4],uint256[5],address,address,address)._router (#993) lacks a zero-check on :
- router = _router (#999)
DxFeeToken.constructor(address,string,string,uint8,uint256,uint8[4],uint256[5],address,address,address)._basePair (#993) lacks a zero-check on :
- basePair = _basePair (#1000)
DxFeeToken.constructor(address,string,string,uint8,uint256,uint8[4],uint256[5],address,address,address).devWalletAddress_ (#993) lacks a zero-check on :
- _devWalletAddress = devWalletAddress_ (#1016)
Check that the address is not zero.
Additional information: link
Address.functionCall(address,bytes) (#408-410) is never used and should be removed
Address.functionCall(address,bytes,string) (#418-424) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#437-443) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#451-462) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#497-499) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#507-516) is never used and should be removed
Address.functionStaticCall(address,bytes) (#470-472) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#480-489) is never used and should be removed
Address.isContract(address) (#359-365) is never used and should be removed
Address.sendValue(address,uint256) (#383-388) is never used and should be removed
Address.verifyCallResult(bool,bytes,string) (#524-544) is never used and should be removed
Context._msgData() (#323-325) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#270-279) is never used and should be removed
SafeMath.mod(uint256,uint256) (#230-232) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#296-305) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#101-107) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#143-148) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#155-160) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#126-136) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#114-119) is never used and should be removed
Remove unused functions.
Additional information: link
Function IIUniSwapPair.DOMAIN_SEPARATOR() (#661) is not in mixedCase
Function IIUniSwapPair.PERMIT_TYPEHASH() (#663) is not in mixedCase
Function IIUniSwapPair.MINIMUM_LIQUIDITY() (#681) is not in mixedCase
Function IUniswapV2Router01.WETH() (#714) is not in mixedCase
Function IUniswapV2Router01.WBNB() (#716) is not in mixedCase
Function IUniswapV2Router01.WAVAX() (#718) is not in mixedCase
Function IUniswapV2Router01.WHT() (#720) is not in mixedCase
Parameter DxFeeToken.setDevWalletAddress(address)._addr (#1169) is not in mixedCase
Parameter DxFeeToken.replaceDevWalletAddress(address,address)._addr (#1178) is not in mixedCase
Parameter DxFeeToken.replaceDevWalletAddress(address,address)._newAddr (#1178) is not in mixedCase
Parameter DxFeeToken.setSwapAndLiquifyEnabled(bool)._enabled (#1189) is not in mixedCase
Parameter DxFeeToken.calculateTaxFee(uint256)._amount (#1253) is not in mixedCase
Parameter DxFeeToken.calculateLiquidityFee(uint256)._amount (#1259) is not in mixedCase
Parameter DxFeeToken.calculateDevFee(uint256)._amount (#1265) is not in mixedCase
Parameter DxFeeToken.addLiquidity(uint256,uint256).ETHAmount (#1446) is not in mixedCase
Variable DxFeeToken._devWalletAddress (#946) is not in mixedCase
Variable DxFeeToken._taxFee (#958) is not in mixedCase
Variable DxFeeToken._liquidityFee (#961) is not in mixedCase
Variable DxFeeToken._devFee (#964) is not in mixedCase
Variable DxFeeToken._sellTaxFee (#967) is not in mixedCase
Variable DxFeeToken._maxTxAmount (#976) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#593-595)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#601-604)
name() should be declared external:
- DxFeeToken.name() (#1047-1049)
symbol() should be declared external:
- DxFeeToken.symbol() (#1051-1053)
decimals() should be declared external:
- DxFeeToken.decimals() (#1055-1057)
totalSupply() should be declared external:
- DxFeeToken.totalSupply() (#1059-1061)
transfer(address,uint256) should be declared external:
- DxFeeToken.transfer(address,uint256) (#1068-1071)
allowance(address,address) should be declared external:
- DxFeeToken.allowance(address,address) (#1073-1075)
approve(address,uint256) should be declared external:
- DxFeeToken.approve(address,uint256) (#1077-1080)
transferFrom(address,address,uint256) should be declared external:
- DxFeeToken.transferFrom(address,address,uint256) (#1082-1086)
increaseAllowance(address,uint256) should be declared external:
- DxFeeToken.increaseAllowance(address,uint256) (#1088-1091)
decreaseAllowance(address,uint256) should be declared external:
- DxFeeToken.decreaseAllowance(address,uint256) (#1093-1096)
isExcludedFromReward(address) should be declared external:
- DxFeeToken.isExcludedFromReward(address) (#1098-1100)
totalFees() should be declared external:
- DxFeeToken.totalFees() (#1102-1104)
deliver(uint256) should be declared external:
- DxFeeToken.deliver(uint256) (#1106-1113)
reflectionFromToken(uint256,bool) should be declared external:
- DxFeeToken.reflectionFromToken(uint256,bool) (#1115-1124)
replaceDevWalletAddress(address,address) should be declared external:
- DxFeeToken.replaceDevWalletAddress(address,address) (#1178-1187)
setSwapAndLiquifyEnabled(bool) should be declared external:
- DxFeeToken.setSwapAndLiquifyEnabled(bool) (#1189-1192)
isExcludedFromFee(address) should be declared external:
- DxFeeToken.isExcludedFromFee(address) (#1292-1294)
disableFees() should be declared external:
- DxFeeToken.disableFees() (#1585-1597)
enableFees() should be declared external:
- DxFeeToken.enableFees() (#1599-1608)
Use the external attribute for functions never called from the contract.
Additional information: link
Contract has 13% buy tax and 12% 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 less than $100. Token is either dead or inactive.
Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.
Number of Binance Smart Chain (BSC) token holders is low.
Token is deployed only at one blockchain
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find KYC or doxxing proof
Unable to find token contract audit
Unable to find audit link on the website
Unable to find whitepaper link on the website
Unable to find token on CoinHunt
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
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Unable to find Youtube account
Unable to find Discord account