ETHFIN [Ethernal Finance II] Token
About ETHFIN
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Ethernal is a utility ecosystem that provides rewards in any top coins you want (e.g. ETH, BTC, BNB, SHIB) simply by holding, no need to stake or farm.
A community-driven DeFi Token built on the Binance Smart Chain with an innovative reflections functionality and a focus on continuous, sustainable growth. Ethernal's main objective is to offer as much value as possible to its users through added utility.
The Ethernal project seeks to build upon famous reflection tokens such as Safemoon and
EverGrow by adding an innovative functionality which allows users to claim rewards in up to 6 concurrent tokens of their choosing. In order to guarantee continuous usage, rewards, and valuation, the project team aims to launch new functionalities and marketing efforts regularly.
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Laser Scorebeta Last Audit: 30 November 2021
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EthernalFinanceII.SendBNBfromContract(uint256,address) (#1202-1207) sends eth to arbitrary user
Dangerous calls:
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
EthernalFinanceII.random(uint256) (#1137-1143) uses a weak PRNG: "randomnumber = uint256(keccak256(bytes)(abi.encodePacked(block.timestamp,msg.sender,nonce))) % range (#1139)"
Do not use block.timestamp, now or blockhash as a source of randomness
Additional information: link
Reentrancy in EthernalFinanceII.setMyAutoPayout(bool) (#1700-1704):
External calls:
- CheckforWork() (#1700)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- (amountToken,amountETH) = _pancakeRouter.addLiquidityETH{value: bnbamount}(Contract,tokenamount,0,0,address(0),block.timestamp) (#1190-1197)
- (success,data) = routerAddress.call(abi.encodeWithSelector(0x18cbafe5,tokenamount,0,path,Contract,block.timestamp)) (#1329-1337)
External calls sending eth:
- CheckforWork() (#1700)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- (amountToken,amountETH) = _pancakeRouter.addLiquidityETH{value: bnbamount}(Contract,tokenamount,0,0,address(0),block.timestamp) (#1190-1197)
State variables written after the call(s):
- _AutoPayoutEnabled[msg.sender] = Checked (#1702)
Apply the check-effects-interactions pattern.
Additional information: link
EthernalFinanceII.RewardTokenoftheWeek (#397) is never initialized. It is used in:
- EthernalFinanceII.getPromotedRewardTokenoftheWeek() (#1458-1461)
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
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
EthernalFinanceII._PayTeam() (#681-708) uses a dangerous strict equality:
- SendBNBfromContract(MarketingBNB,MarketingWallet) == true (#683)
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.
EthernalFinanceII.ClaimRewards(address) (#1771-1874) performs a multiplication on the result of a division:
-slicevalue = amountBNB / 100 (#1836)
-BNBslice = slicevalue * percslice (#1845)
Consider ordering multiplication before division.
Additional information: link
Reentrancy in EthernalFinanceII.constructor() (#551-597):
External calls:
- _pancakePairAddress = IPancakeFactory(_pancakeRouter.factory()).createPair(address(this),_pancakeRouter.WETH()) (#582)
State variables written after the call(s):
- UpdateRegister(_pancakePairAddress,false) (#583)
- N_holders ++ (#643)
- UpdateRegister(_pancakePairAddress,false) (#583)
- _RewardTokens[recipient].Slice1 = 75 (#647)
- _RewardTokens[recipient].Slice2 = 25 (#648)
- _RewardTokens[recipient].Token1 = 0 (#649)
- _RewardTokens[recipient].Token2 = 1 (#650)
- UpdateRegister(_pancakePairAddress,false) (#583)
- _isregistered[recipient] = true (#638)
- UpdateRegister(_pancakePairAddress,false) (#583)
- investorList.push(recipient) (#637)
Apply the check-effects-interactions pattern.
Additional information: link
EthernalFinanceII.AirdropPayout().Dropsmade (#1904) 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
EthernalFinanceII.setMainWallet(address) (#752-761) should emit an event for:
- MainWallet = addr (#756)
- MainWallet = addr (#756)
- MainWallet = addr (#756)
Emit an event for critical parameter changes.
Additional information: link
EthernalFinanceII.sendAirdrop(uint256,address) (#1719-1727) should emit an event for:
- RafflePot -= _Tokens (#1725)
Emit an event for critical parameter changes.
Additional information: link
EthernalFinanceII.setMainWallet(address).addr (#752) lacks a zero-check on :
- MainWallet = addr (#756)
Check that the address is not zero.
Additional information: link
EthernalFinanceII.ClaimRewards(address) (#1771-1874) has external calls inside a loop: PayoutTokenContract_scope_0 == _pancakeRouter.WETH() (#1850)
Favor pull over push strategy for external calls.
Additional information: link
Reentrancy in EthernalFinanceII.doWork(uint32) (#1035-1076):
External calls:
- _swapTaxTokenForBNB(_maxTxAmount,_maxTxAmount) (#1040)
- (success,data) = routerAddress.call(abi.encodeWithSelector(0x18cbafe5,tokenamount,0,path,Contract,block.timestamp)) (#1329-1337)
- sendLiquidity() (#1044)
- (amountToken,amountETH) = _pancakeRouter.addLiquidityETH{value: bnbamount}(Contract,tokenamount,0,0,address(0),block.timestamp) (#1190-1197)
- _StartRewardCalculation() (#1056)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _DistributeRewards(N_payoutsperWorkRound) (#1064)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- doBuyback() (#1070)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- RefundGas() (#1035)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
External calls sending eth:
- sendLiquidity() (#1044)
- (amountToken,amountETH) = _pancakeRouter.addLiquidityETH{value: bnbamount}(Contract,tokenamount,0,0,address(0),block.timestamp) (#1190-1197)
- _StartRewardCalculation() (#1056)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _DistributeRewards(N_payoutsperWorkRound) (#1064)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- doBuyback() (#1070)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- RefundGas() (#1035)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
State variables written after the call(s):
- NextTask ++ (#1073)
- NextTask = 0 (#1075)
- doBuyback() (#1070)
- SingleUntaxedTransfer = true (#1949)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in EthernalFinanceII.doWork(uint32) (#1035-1076):
External calls:
- _swapTaxTokenForBNB(_maxTxAmount,_maxTxAmount) (#1040)
- (success,data) = routerAddress.call(abi.encodeWithSelector(0x18cbafe5,tokenamount,0,path,Contract,block.timestamp)) (#1329-1337)
- sendLiquidity() (#1044)
- (amountToken,amountETH) = _pancakeRouter.addLiquidityETH{value: bnbamount}(Contract,tokenamount,0,0,address(0),block.timestamp) (#1190-1197)
- _StartRewardCalculation() (#1056)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _DistributeRewards(N_payoutsperWorkRound) (#1064)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- doBuyback() (#1070)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- RefundGas() (#1035)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
External calls sending eth:
- sendLiquidity() (#1044)
- (amountToken,amountETH) = _pancakeRouter.addLiquidityETH{value: bnbamount}(Contract,tokenamount,0,0,address(0),block.timestamp) (#1190-1197)
- _StartRewardCalculation() (#1056)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _DistributeRewards(N_payoutsperWorkRound) (#1064)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- doBuyback() (#1070)
- _pancakeRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountBNB}(0,path,address(receiver),block.timestamp) (#1362-1369)
- RefundGas() (#1035)
- (success) = receiver.call{value: amountBNB}(new bytes(0)) (#1204)
Event emitted after the call(s):
- Buyback_(tokens,N_holders) (#1964)
- doBuyback() (#1070)
- TokensBurned(amount) (#1488)
- doBuyback() (#1070)
- Transfer(account,deadwallet,amount) (#1487)
- doBuyback() (#1070)
- Transfer(sender,recipient,amount) (#908)
- doBuyback() (#1070)
Apply the check-effects-interactions pattern.
Additional information: link
EthernalFinanceII.doBuyback() (#1940-1974) uses timestamp for comparisons
Dangerous comparisons:
- __balanceOf[MainWallet] > tokens (#1956)
- (__totalSupply - tokens > burnUntil) (#1961)
Avoid relying on block.timestamp.
Additional information: link
EthernalFinanceII.sliceUint(bytes,uint256) (#1210-1220) uses assembly
- INLINE ASM (#1216-1218)
Do not use evm assembly.
Additional information: link
EthernalFinanceII.RefundGas() (#495-506) compares to a boolean constant:
-SendBNBfromContract(tempPot,MainWallet) == false (#502)
Remove the equality to the boolean constant.
Additional information: link
EthernalFinanceII.AirdropPayout() (#1893-1933) has costly operations inside a loop:
- Airdrop_totalPaidOut += payoutperwinner (#1919)
Use a local variable to hold the loop computation result.
Additional information: link
EthernalFinanceII._buyBackTokens(uint256) (#1418-1445) is never used and should be removed
Remove unused functions.
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 EthernalFinanceII._swapTokenForBNB(uint256) (#1318-1350):
- (success,data) = routerAddress.call(abi.encodeWithSelector(0x18cbafe5,tokenamount,0,path,Contract,block.timestamp)) (#1329-1337)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
EthernalFinanceII (#346-1977) should inherit from DAPP (#312-326)
Inherit from the missing interface or contract.
Additional information: link
Modifier EthernalFinanceII.RefundGas() (#495-506) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "DistributeSellTax (#1042)" inEthernalFinanceII (#346-1977)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Variable IPancakeRouter01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#150) is too similar to IPancakeRouter01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#151)
Prevent variables from having similar names.
Additional information: link
EthernalFinanceII.slitherConstructorConstantVariables() (#346-1977) uses literals with too many digits:
- initialSupply = 100000000000000000000000000000 (#352)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
EthernalFinanceII.RewardTokenoftheWeek (#397) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
MyAvailableRewards() should be declared external:
- EthernalFinanceII.MyAvailableRewards() (#1887-1890)
Use the external attribute for functions never called from the contract.
Additional information: link
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 number of swaps.
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token contract audit
Unable to find audit 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
Young tokens have high risks of price dump / death
Token has relatively low CoinGecko rank
Token has relatively low CoinMarketCap rank
Price for ETHFIN
LASER DESK beta
Twitter account link seems to be invalid
Unable to find Youtube account