TROLLER Token
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The Troller is the first competition NFT Marketplace , Tournament gaming style and it is dedicated to themed Trolls & Memes NFTs , bringing talented NFT Artists to compete in order to create the best NFT Troll /Meme for the chosen ( Guest ) and win big prizes for the top winners.
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Laser Scorebeta Last Audit: 30 November 2021
Troller.addLiquidity(uint256,uint256) (contracts/Troller.sol#1313-1326) sends eth to arbitrary user
Dangerous calls:
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/Troller.sol#1318-1325)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in Troller._transfer(address,address,uint256) (contracts/Troller.sol#1153-1229):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/Troller.sol#1211)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/Troller.sol#1318-1325)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Troller.sol#1287-1293)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/Troller.sol#1211)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/Troller.sol#1318-1325)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (contracts/Troller.sol#1228)
- _burnFee = _previousBurnFee (contracts/Troller.sol#1136)
- _burnFee = 0 (contracts/Troller.sol#1128)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Troller.sol#1228)
- _liquidityFee = _previousLiquidityFee (contracts/Troller.sol#1135)
- _liquidityFee = 0 (contracts/Troller.sol#1127)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Troller.sol#1228)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (contracts/Troller.sol#1100)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/Troller.sol#1351)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/Troller.sol#1360)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/Troller.sol#1352)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/Troller.sol#1371)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/Troller.sol#1381)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/Troller.sol#1372)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/Troller.sol#1362)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/Troller.sol#1383)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Troller.sol#1228)
- _rTotal = _rTotal.sub(rFee) (contracts/Troller.sol#1055)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Troller.sol#1228)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (contracts/Troller.sol#1102)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (contracts/Troller.sol#1370)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (contracts/Troller.sol#1380)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (contracts/Troller.sol#1361)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (contracts/Troller.sol#1382)
- _tokenTransfer(from,to,amount,takeFee) (contracts/Troller.sol#1228)
- _walletFee = _previousWalletFee (contracts/Troller.sol#1137)
- _walletFee = 0 (contracts/Troller.sol#1129)
Apply the check-effects-interactions pattern.
Additional information: link
Troller.recoverBEP20(address,uint256) (contracts/Troller.sol#1405-1409) ignores return value by IERC20(tokenAddress).transfer(owner(),tokenAmount) (contracts/Troller.sol#1408)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.
Additional information: link
Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains
Troller.setAllFeePercent(uint8,uint8,uint8,uint8) (contracts/Troller.sol#1012-1022) contains a tautology or contradiction:
- require(bool,string)(walletFee >= 0 && walletFee <= maxWalletFee,WF err) (contracts/Troller.sol#1016)
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.
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.
Troller.swapAndLiquify(uint256) (contracts/Troller.sol#1231-1275) performs a multiplication on the result of a division:
-spentAmount = contractTokenBalance.div(totFee).mul(_walletFee) (contracts/Troller.sol#1244)
Consider ordering multiplication before division.
Additional information: link
Troller.safeLaunch_addToBlackList(address[]).i (contracts/Troller.sol#845) 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
Troller.addLiquidity(uint256,uint256) (contracts/Troller.sol#1313-1326) ignores return value by pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/Troller.sol#1318-1325)
Ensure that all the return values of the function calls are used.
Additional information: link
Troller._approve(address,address,uint256).owner (contracts/Troller.sol#1145) shadows:
- Ownable.owner() (contracts/Troller.sol#552-554) (function)
Rename the local variables that shadow another component.
Additional information: link
Troller.setMaxWalletPercent(uint256) (contracts/Troller.sol#1033-1038) should emit an event for:
- _maxWalletAmount = _tTotal.mul(maxWalletPercent).div(10 ** 2) (contracts/Troller.sol#1035-1037)
Emit an event for critical parameter changes.
Additional information: link
Troller.setRouter(address).newRouter (contracts/Troller.sol#903) lacks a zero-check on :
- router = newRouter (contracts/Troller.sol#904)
Check that the address is not zero.
Additional information: link
Reentrancy in Troller.transferFrom(address,address,uint256) (contracts/Troller.sol#942-946):
External calls:
- _transfer(sender,recipient,amount) (contracts/Troller.sol#943)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/Troller.sol#1318-1325)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Troller.sol#1287-1293)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/Troller.sol#943)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/Troller.sol#1318-1325)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (contracts/Troller.sol#944)
- _allowances[owner][spender] = amount (contracts/Troller.sol#1149)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in Troller.transferFrom(address,address,uint256) (contracts/Troller.sol#942-946):
External calls:
- _transfer(sender,recipient,amount) (contracts/Troller.sol#943)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/Troller.sol#1318-1325)
- pcsV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/Troller.sol#1287-1293)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/Troller.sol#943)
- pcsV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,dead,block.timestamp) (contracts/Troller.sol#1318-1325)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/Troller.sol#1150)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (contracts/Troller.sol#944)
Apply the check-effects-interactions pattern.
Additional information: link
Troller._transfer(address,address,uint256) (contracts/Troller.sol#1153-1229) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(buy_buy[to] < block.timestamp,Need to wait a few seconds before you can buy again.) (contracts/Troller.sol#1170)
- require(bool,string)(buy_sell[from] < block.timestamp,Need to wait a few seconds before selling.) (contracts/Troller.sol#1181)
Avoid relying on block.timestamp.
Additional information: link
Address._functionCallWithValue(address,bytes,uint256,string) (contracts/Troller.sol#434-455) uses assembly
- INLINE ASM (contracts/Troller.sol#447-450)
Do not use evm assembly.
Additional information: link
Troller.swapBNBForTokens(uint256) (contracts/Troller.sol#1296-1311) is never used and should be removed
Remove unused functions.
Additional information: link
Troller._previousWalletFee (contracts/Troller.sol#799) is set pre-construction with a non-constant function or state variable:
- _walletFee
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
solc-0.8.6 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 Address._functionCallWithValue(address,bytes,uint256,string) (contracts/Troller.sol#434-455):
- (success,returndata) = target.call{value: weiValue}(data) (contracts/Troller.sol#438)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Variable Troller.buy_sell (contracts/Troller.sol#823) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (contracts/Troller.sol#314)" inContext (contracts/Troller.sol#308-317)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Variable Troller.reflectionFromToken(uint256,bool).rTransferAmount (contracts/Troller.sol#981) is too similar to Troller._transferFromExcluded(address,address,uint256).tTransferAmount (contracts/Troller.sol#1369)
Prevent variables from having similar names.
Additional information: link
Troller.slitherConstructorVariables() (contracts/Troller.sol#750-1411) uses literals with too many digits:
- dead = 0x000000000000000000000000000000000000dEaD (contracts/Troller.sol#755)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
Troller.minMxWalletPercentage (contracts/Troller.sol#762) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
recoverBEP20(address,uint256) should be declared external:
- Troller.recoverBEP20(address,uint256) (contracts/Troller.sol#1405-1409)
Use the external attribute for functions never called from the contract.
Additional information: link
Token is deployed only at one blockchain
Unable to find PancakeSwap trading pair to compute liquidity.
Unable to find PancakeSwap trading pair to compute number of swaps.
Young tokens have high risks of 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 price dump / death
Token has relatively low CoinGecko rank
Token has relatively low CoinMarketCap rank
Price for TROLLER
LASER DESK beta
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