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LZ [LaunchZone] Token

About LZ

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Token 11 months
CoinMarketCap 10 months

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LaunchZone - The Ultimate DeFi Platform

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Laser Scorebeta Last Audit: 17 January 2022

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Token seems to be (relatively) fine. It still become a scam, but probability is moderate.

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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

Reentrancy in LZToken._transfer(address,address,uint256) (#1521-1550):
External calls:
- swapAndLiquify(contractTokenBalance) (#1536)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1586-1592)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1536)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
State variables written after the call(s):
- super._transfer(sender,_foundation,_stakingAndBurnAndTeamAmount) (#1541)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#903)
- _balances[recipient] = _balances[recipient].add(amount) (#904)
- super._transfer(sender,recipient,amount) (#1547)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#903)
- _balances[recipient] = _balances[recipient].add(amount) (#904)
- _unlockTransfer(sender,_foundation,_stakingAndBurnAndTeamAmount) (#1542)
- _unlocks[sender] = _unlocks[sender].sub(amount,BEP20: transfer amount exceeds unlocked balance) (#1491)
- _unlocks[recipient] = _unlocks[recipient].add(amount) (#1492)
- _unlockTransfer(sender,recipient,amount) (#1548)
- _unlocks[sender] = _unlocks[sender].sub(amount,BEP20: transfer amount exceeds unlocked balance) (#1491)
- _unlocks[recipient] = _unlocks[recipient].add(amount) (#1492)
Apply the check-effects-interactions pattern.

Additional information: link

LZToken._writeCheckpoint(address,uint32,uint256,uint256) (#1866-1884) uses a dangerous strict equality:
- nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber (#1876)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

Address.functionCall(address,bytes) (#592-594) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#621-627) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#635-643) is never used and should be removed
Address.sendValue(address,uint256) (#566-572) is never used and should be removed
BEP20._burnFrom(address,uint256) (#975-982) is never used and should be removed
Context._msgData() (#23-26) is never used and should be removed
LZToken.calculateLiquidityFee(uint256) (#1638-1642) is never used and should be removed
SafeERC20.safeApprove(BEP20,address,uint256) (#91-100) is never used and should be removed
SafeERC20.safeDecreaseAllowance(BEP20,address,uint256) (#107-110) is never used and should be removed
SafeERC20.safeIncreaseAllowance(BEP20,address,uint256) (#102-105) is never used and should be removed
SafeMath.min(uint256,uint256) (#496-498) is never used and should be removed
SafeMath.mod(uint256,uint256) (#471-473) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#487-494) is never used and should be removed
SafeMath.sqrt(uint256) (#501-512) is never used and should be removed
Remove unused functions.

Additional information: link

LZToken.addLiquidity(uint256,uint256) (#1596-1609) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
Ensure that all the return values of the function calls are used.

Additional information: link

BEP20.constructor(string,string).name (#722) shadows:
- BEP20.name() (#738-740) (function)
- IBEP20.name() (#223) (function)
BEP20.constructor(string,string).symbol (#722) shadows:
- BEP20.symbol() (#752-754) (function)
- IBEP20.symbol() (#218) (function)
BEP20.allowance(address,address).owner (#786) shadows:
- Ownable.owner() (#161-163) (function)
BEP20._approve(address,address,uint256).owner (#958) shadows:
- Ownable.owner() (#161-163) (function)
Rename the local variables that shadow another component.

Additional information: link

LZToken.setLiquidityFeePercent(uint256) (#1625-1627) should emit an event for:
- _liquidityFee = liquidityFee (#1626)
LZToken.setStakingAndBurnAndTeamPercent(uint256) (#1644-1646) should emit an event for:
- _stakingAndBurnAndTeamAlloc = stakingAndBurnAndTeamAlloc (#1645)
LZToken.setLiquidityReservoir(uint256) (#1653-1655) should emit an event for:
- _liquidityReservoir = liquidityReservoir (#1654)
Emit an event for critical parameter changes.

Additional information: link

LZToken.setFoundation(address).foundation (#1657) lacks a zero-check on :
- _foundation = foundation (#1661)
Check that the address is not zero.

Additional information: link

Reentrancy in LZToken._transfer(address,address,uint256) (#1521-1550):
External calls:
- swapAndLiquify(contractTokenBalance) (#1536)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1586-1592)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1536)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
State variables written after the call(s):
- _moveDelegates(_delegates[sender],_delegates[recipient],amount) (#1549)
- checkpoints[delegatee][nCheckpoints - 1].votes = newVotes (#1877)
- checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber,newVotes) (#1879)
- _moveDelegates(_delegates[sender],_delegates[recipient],amount) (#1549)
- numCheckpoints[delegatee] = nCheckpoints + 1 (#1880)
Reentrancy in LZToken.constructor() (#1332-1347):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1337-1340)
State variables written after the call(s):
- _foundation = address(msg.sender) (#1344)
- _liquidityReservoir = 50000 * (10 ** uint256(decimals())) (#1345)
- _maxCap = 50000000 * (10 ** uint256(decimals())) (#1346)
- uniswapV2Router = _uniswapV2Router (#1343)
Reentrancy in LZToken.stake(address,uint256) (#1394-1404):
External calls:
- _pullToken(token,_msgSender(),amount) (#1397)
- BEP20(token).safeTransferFrom(from,address(this),amount) (#1497)
- returndata = address(token).functionCall(data,SafeERC20: low-level call failed) (#123)
- (success,returndata) = target.call{value: weiValue}(data) (#654)
External calls sending eth:
- _pullToken(token,_msgSender(),amount) (#1397)
- (success,returndata) = target.call{value: weiValue}(data) (#654)
State variables written after the call(s):
- _updateStakeRecord(_msgSender(),token,info.amountStaked.add(amount)) (#1400)
- _stakingRecords[staker][token].amountStaked = _amountStaked (#1428)
- _stakingRecords[staker][token].blockNumber = block.number (#1429)
- _mintUnlocked(_msgSender(),unlockedAmount) (#1401)
- _totalUnlocked = _totalUnlocked.add(amount) (#1474)
- _mintUnlocked(_msgSender(),unlockedAmount) (#1401)
- _unlocks[recipient] = _unlocks[recipient].add(amount) (#1473)
Reentrancy in LZToken.swapAndLiquify(uint256) (#1553-1574):
External calls:
- swapTokensForEth(half) (#1565)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1586-1592)
- addLiquidity(otherHalf,newBalance) (#1571)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1571)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1571)
- _allowances[owner][spender] = amount (#965)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in LZToken._transfer(address,address,uint256) (#1521-1550):
External calls:
- swapAndLiquify(contractTokenBalance) (#1536)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1586-1592)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1536)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
Event emitted after the call(s):
- DelegateVotesChanged(delegatee,oldVotes,newVotes) (#1883)
- _moveDelegates(_delegates[sender],_delegates[recipient],amount) (#1549)
- LOG_UNLOCK_TRANSFER(sender,recipient,amount) (#1493)
- _unlockTransfer(sender,_foundation,_stakingAndBurnAndTeamAmount) (#1542)
- LOG_UNLOCK_TRANSFER(sender,recipient,amount) (#1493)
- _unlockTransfer(sender,recipient,amount) (#1548)
- Transfer(sender,recipient,amount) (#905)
- super._transfer(sender,recipient,amount) (#1547)
- Transfer(sender,recipient,amount) (#905)
- super._transfer(sender,_foundation,_stakingAndBurnAndTeamAmount) (#1541)
Reentrancy in LZToken.stake(address,uint256) (#1394-1404):
External calls:
- _pullToken(token,_msgSender(),amount) (#1397)
- BEP20(token).safeTransferFrom(from,address(this),amount) (#1497)
- returndata = address(token).functionCall(data,SafeERC20: low-level call failed) (#123)
- (success,returndata) = target.call{value: weiValue}(data) (#654)
External calls sending eth:
- _pullToken(token,_msgSender(),amount) (#1397)
- (success,returndata) = target.call{value: weiValue}(data) (#654)
Event emitted after the call(s):
- LOG_STAKE(_msgSender(),token,amount) (#1402)
- LOG_UNLOCK_TRANSFER(address(0),recipient,amount) (#1475)
- _mintUnlocked(_msgSender(),unlockedAmount) (#1401)
Reentrancy in LZToken.swapAndLiquify(uint256) (#1553-1574):
External calls:
- swapTokensForEth(half) (#1565)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1586-1592)
- addLiquidity(otherHalf,newBalance) (#1571)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1571)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,_foundation,block.timestamp) (#1601-1608)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#966)
- addLiquidity(otherHalf,newBalance) (#1571)
- SwapAndLiquify(half,newBalance,otherHalf) (#1573)
Reentrancy in LZToken.unstake(address,uint256) (#1406-1416):
External calls:
- _pushToken(token,_msgSender(),amount) (#1413)
- BEP20(token).safeTransfer(to,amount) (#1501)
- returndata = address(token).functionCall(data,SafeERC20: low-level call failed) (#123)
- (success,returndata) = target.call{value: weiValue}(data) (#654)
External calls sending eth:
- _pushToken(token,_msgSender(),amount) (#1413)
- (success,returndata) = target.call{value: weiValue}(data) (#654)
Event emitted after the call(s):
- LOG_UNSTAKE(_msgSender(),token,amount) (#1414)
Apply the check-effects-interactions pattern.

Additional information: link

LZToken.delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32) (#1732-1773) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now <= expiry,LZ::delegateBySig: signature expired) (#1771)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#537-548) uses assembly
- INLINE ASM (#544-546)
Address._functionCallWithValue(address,bytes,uint256,string) (#645-671) uses assembly
- INLINE ASM (#663-666)
LZToken.getChainId() (#1891-1895) uses assembly
- INLINE ASM (#1893)
Do not use evm assembly.

Additional information: link

LZToken._transfer(address,address,uint256) (#1521-1550) compares to a boolean constant:
-_isExcludedFromFee[sender] != true && _isExcludedFromFee[recipient] != true (#1522)
Remove the equality to the boolean constant.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#566-572):
- (success) = recipient.call{value: amount}() (#570)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#645-671):
- (success,returndata) = target.call{value: weiValue}(data) (#654)
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() (#1021) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#1022) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#1039) is not in mixedCase
Function IUniswapV2Router01.WETH() (#1061) is not in mixedCase
Event LZTokenLOG_UNLOCK_TRANSFER(address,address,uint256) (#1254-1258) is not in CapWords
Event LZTokenLOG_STAKE(address,address,uint256) (#1260-1264) is not in CapWords
Event LZTokenLOG_UNSTAKE(address,address,uint256) (#1266-1270) is not in CapWords
Event LZTokenLOG_CLAIM_UNLOCKED(address,uint256) (#1272-1275) is not in CapWords
Event LZTokenLOG_SET_UNLOCK_FACTOR(address,uint256) (#1277-1280) is not in CapWords
Event LZTokenLOG_SET_UNLOCK_BLOCK_GAP(address,uint256) (#1282-1285) is not in CapWords
Parameter LZToken.setUnlockFactor(address,uint256)._factor (#1384) is not in mixedCase
Parameter LZToken.setUnlockBlockGap(address,uint256)._blockGap (#1389) is not in mixedCase
Parameter LZToken.calculateLiquidityFee(uint256)._amount (#1638) is not in mixedCase
Variable LZToken._liquidityFee (#1307) is not in mixedCase
Variable LZToken._stakingAndBurnAndTeamAlloc (#1308) is not in mixedCase
Variable LZToken._liquidityReservoir (#1309) is not in mixedCase
Variable LZToken._foundation (#1310) is not in mixedCase
Variable LZToken._maxCap (#1311) is not in mixedCase
Variable LZToken._delegates (#1673) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#24)" inContext (#14-27)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#1066) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#1067)
Prevent variables from having similar names.

Additional information: link

LZToken.constructor() (#1332-1347) uses literals with too many digits:
- _maxCap = 50000000 * (10 ** uint256(decimals())) (#1346)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#180-183)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#189-191)
symbol() should be declared external:
- BEP20.symbol() (#752-754)
transfer(address,uint256) should be declared external:
- BEP20.transfer(address,uint256) (#778-781)
allowance(address,address) should be declared external:
- BEP20.allowance(address,address) (#786-788)
approve(address,uint256) should be declared external:
- BEP20.approve(address,uint256) (#797-800)
transferFrom(address,address,uint256) should be declared external:
- BEP20.transferFrom(address,address,uint256) (#814-826)
increaseAllowance(address,uint256) should be declared external:
- BEP20.increaseAllowance(address,uint256) (#840-843)
decreaseAllowance(address,uint256) should be declared external:
- BEP20.decreaseAllowance(address,uint256) (#859-866)
unlockedOf(address) should be declared external:
- LZToken.unlockedOf(address) (#1361-1363)
burn(uint256) should be declared external:
- LZToken.burn(uint256) (#1617-1623)
includeInFee(address) should be declared external:
- LZToken.includeInFee(address) (#1630-1632)
isExcludedFromFee(address) should be declared external:
- LZToken.isExcludedFromFee(address) (#1634-1636)
excludeFromFee(address) should be declared external:
- LZToken.excludeFromFee(address) (#1649-1651)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


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.


Last post in Twitter was more than 30 days ago


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


Unable to find Discord account


Unable to find token contract audit


Unable to find audit link on the website


Unable to find whitepaper link on the website


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


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death

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