HOL [Holiday] Token
About HOL
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$HOL is a community-driven reflections token on the Binance Chain. Holders have the opportunity to earn 8% BUSD passive income while the main projects focus is to put smiles on the less fortunate faces through charitable causes every holiday throughout the year, If we make you smile, You will make the less fortunate have a reason to smile in return. A few key features to be released is NFT staking and farming, Live Charity events and development to manually claim your BUSD rewards on our website. The Holiday token team has a long term vision to open a school that will put children that cant afford education into a school with an additional subject in the crypto space , mentoring and teaching them development , blockchain and trading , What more better way than creating crypto experts from a young age?
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Laser Scorebeta Last Audit: 30 November 2021
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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
DividendDistributor.distributeDividend(address) (#369-380) ignores return value by BUSD.transfer(shareholder,amount) (#375)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.
Additional information: link
HolidayToken.buyTokens(uint256,address) (#688-699) sends eth to arbitrary user
Dangerous calls:
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#693-698)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in HolidayToken._transferFrom(address,address,uint256) (#542-565):
External calls:
- swapBack() (#547)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#627-633)
- distributor.deposit{value: amountBNBReflection}() (#643)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#649-656)
- triggerAutoBuyback() (#548)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#693-698)
External calls sending eth:
- swapBack() (#547)
- distributor.deposit{value: amountBNBReflection}() (#643)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#644)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#649-656)
- triggerAutoBuyback() (#548)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#693-698)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#552)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#556)
- amountReceived = takeFee(sender,recipient,amount) (#554)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#604)
- triggerAutoBuyback() (#548)
- inSwap = true (#479)
- inSwap = false (#479)
Apply the check-effects-interactions pattern.
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.
HolidayToken.swapBack() (#617-659) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#649-656)
Ensure that all the return values of the function calls are used.
Additional information: link
Reentrancy in DividendDistributor.setShare(address,uint256) (#302-316):
External calls:
- distributeDividend(shareholder) (#304)
- BUSD.transfer(shareholder,amount) (#375)
State variables written after the call(s):
- shares[shareholder].amount = amount (#314)
- shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount) (#315)
Apply the check-effects-interactions pattern.
Additional information: link
HolidayToken.setTargetLiquidity(uint256,uint256) (#770-773) should emit an event for:
- targetLiquidity = _target (#771)
- targetLiquidityDenominator = _denominator (#772)
Emit an event for critical parameter changes.
Additional information: link
HolidayToken.setFeeReceivers(address,address)._marketingFeeReceiver (#760) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#762)
Check that the address is not zero.
Additional information: link
Reentrancy in HolidayToken.triggerZeusBuyback(uint256,bool) (#669-675):
External calls:
- buyTokens(amount,DEAD) (#670)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#693-698)
State variables written after the call(s):
- buybackMultiplierTriggeredAt = block.timestamp (#672)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in HolidayToken.triggerZeusBuyback(uint256,bool) (#669-675):
External calls:
- buyTokens(amount,DEAD) (#670)
- router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,to,block.timestamp) (#693-698)
Event emitted after the call(s):
- BuybackMultiplierActive(buybackMultiplierLength) (#673)
Apply the check-effects-interactions pattern.
Additional information: link
HolidayToken.isOverLiquified(uint256,uint256) (#792-794) uses timestamp for comparisons
Dangerous comparisons:
- getLiquidityBacking(accuracy) > target (#793)
Avoid relying on block.timestamp.
Additional information: link
HolidayToken.onlyBuybacker() (#516) compares to a boolean constant:
-require(bool,string)(buyBacker[msg.sender] == true,) (#516)
Remove the equality to the boolean constant.
Additional information: link
DividendDistributor.process(uint256) (#338-362) has costly operations inside a loop:
- currentIndex ++ (#359)
Use a local variable to hold the loop computation result.
Additional information: link
SafeMath.trySub(uint256,uint256) (#35-40) is never used and should be removed
Remove unused functions.
Additional information: link
HolidayToken.swapThreshold (#477) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 2000
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-0.8.0 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
Variable HolidayToken._allowances (#433) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Reentrancy in HolidayToken.swapBack() (#617-659):
External calls:
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#644)
External calls sending eth:
- distributor.deposit{value: amountBNBReflection}() (#643)
- address(marketingFeeReceiver).transfer(amountBNBMarketing) (#644)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (#649-656)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#657)
Apply the check-effects-interactions pattern.
Additional information: link
Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#199) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#200)
Prevent variables from having similar names.
Additional information: link
HolidayToken.slitherConstructorVariables() (#415-799) uses literals with too many digits:
- distributorGas = 500000 (#474)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
HolidayToken.DEAD_NON_CHECKSUM (#423) is never used in HolidayToken (#415-799)
Remove unused state variables.
Additional information: link
HolidayToken._totalSupply (#429) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
launch() should be declared external:
- HolidayToken.launch() (#721-725)
Use the external attribute for functions never called from the contract.
Additional information: link
Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.
Token is deployed only at one blockchain
Token has only one trading pair
Unable to find PancakeSwap trading pair to compute liquidity.
Unable to find PancakeSwap trading pair to compute volume.
Unable to find PancakeSwap trading pair to compute number of swaps.
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap
Additional information: link
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
Unable to find code repository for the project
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
Token has no active CoinMarketCap listing / rank
Token has relatively low CoinGecko rank
Price for HOL
LASER DESK beta
Twitter account link seems to be invalid
Unable to find Youtube account