RMD [Remedao] Token

Remedao.swapBack() (#895-919) sends eth to arbitrary user
Dangerous calls:
- (success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
- (success,None) = address(address(voteContract)).call{gas: 30000,value: amountETH.mul(memeFee).div(_memeDenominator)}() (#914-917)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in Remedao._transferFrom(address,address,uint256) (#828-878):
External calls:
- rebase() (#842)
- pairContract.sync() (#737)
- swapBack() (#844)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#778-784)
- (success) = address(treasuryReceiver).call{gas: 30000,value: amountETH.mul(treasuryFee).div(_memeDenominator)}() (#905-908)
- (success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
- (success,None) = address(address(voteContract)).call{gas: 30000,value: amountETH.mul(memeFee).div(_memeDenominator)}() (#914-917)
External calls sending eth:
- swapBack() (#844)
- (success) = address(treasuryReceiver).call{gas: 30000,value: amountETH.mul(treasuryFee).div(_memeDenominator)}() (#905-908)
- (success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
- (success,None) = address(address(voteContract)).call{gas: 30000,value: amountETH.mul(memeFee).div(_memeDenominator)}() (#914-917)
State variables written after the call(s):
- _gonBalances[sender] = _gonBalances[sender].sub(gonAmount) (#861)
- _gonBalances[recipient] = _gonBalances[recipient].add(gonAmountReceived) (#865-867)
- gonAmountReceived = takeFee(sender,gonAmount) (#862-864)
- _gonBalances[address(this)] = _gonBalances[address(this)].add(gonAmount.mul(treasuryFee.add(insuranceFundFee).add(memeFee)).div(feeDenominator)) (#886-890)
Apply the check-effects-interactions pattern.

Additional information: link

Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains

Remedao.swapBack().success (#905) is written in both
(success) = address(treasuryReceiver).call{gas: 30000,value: amountETH.mul(treasuryFee).div(_memeDenominator)}() (#905-908)
(success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
Fix or remove the writes.

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.

Remedao.isContract(address) (#1126-1132) uses assembly
- INLINE ASM (#1128-1130)
Do not use evm assembly.

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Remedao.lockMaxBalance (#652) should be constant
Add the constant attributes to state variables that never change.

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Remedao.rebase() (#714-753) performs a multiplication on the result of a division:
-gonsPerFragment = TOTAL_GONS.div(_totalSupply) (#736)
-_gonBalances[lockAddress] = lockMaxBalance.mul(gonsPerFragment) (#741)
Remedao.rebase() (#714-753) performs a multiplication on the result of a division:
-gonsPerFragment = TOTAL_GONS.div(_totalSupply) (#736)
-_gonBalances[offChainGameReceiver] = _gonBalances[offChainGameReceiver].add(_gonBalances[lockAddress] - lockMaxBalance.mul(gonsPerFragment)) (#742-747)
Remedao.takeFee(address,uint256) (#880-893) performs a multiplication on the result of a division:
-feeAmount = gonAmount.div(feeDenominator).mul(totalFee) (#884)
Consider ordering multiplication before division.

Additional information: link

Reentrancy in Remedao.rebase() (#714-753):
External calls:
- pairContract.sync() (#737)
State variables written after the call(s):
- _rebaseEpoch = epoch (#738)
Apply the check-effects-interactions pattern.

Additional information: link

Remedao.rebase().rebaseRate (#717) 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.

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Remedao.setFee(uint256,uint256,uint256) (#1022-1032) should emit an event for:
- treasuryFee = _treasuryFee (#1028)
- insuranceFundFee = _insuranceFundFee (#1029)
- memeFee = _memeFee (#1030)
- totalFee = treasuryFee.add(insuranceFundFee).add(memeFee) (#1031)
Emit an event for critical parameter changes.

Additional information: link

Remedao.setLockAddress(address)._address (#940) lacks a zero-check on :
- lockAddress = _address (#942)
Remedao.setFeeReceivers(address,address,address)._treasuryReceiver (#1008) lacks a zero-check on :
- treasuryReceiver = _treasuryReceiver (#1012)
Remedao.setFeeReceivers(address,address,address)._insuranceFundReceiver (#1009) lacks a zero-check on :
- insuranceFundReceiver = _insuranceFundReceiver (#1013)
Remedao.setFeeReceivers(address,address,address)._offChainGameReceiver (#1010) lacks a zero-check on :
- offChainGameReceiver = _offChainGameReceiver (#1014)
Remedao.setPairAddress(address)._pairAddress (#1049) lacks a zero-check on :
- pairAddress = _pairAddress (#1050)
Check that the address is not zero.

Additional information: link

Reentrancy in Remedao._transferFrom(address,address,uint256) (#828-878):
External calls:
- rebase() (#842)
- pairContract.sync() (#737)
- swapBack() (#844)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#778-784)
- (success) = address(treasuryReceiver).call{gas: 30000,value: amountETH.mul(treasuryFee).div(_memeDenominator)}() (#905-908)
- (success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
- (success,None) = address(address(voteContract)).call{gas: 30000,value: amountETH.mul(memeFee).div(_memeDenominator)}() (#914-917)
External calls sending eth:
- swapBack() (#844)
- (success) = address(treasuryReceiver).call{gas: 30000,value: amountETH.mul(treasuryFee).div(_memeDenominator)}() (#905-908)
- (success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
- (success,None) = address(address(voteContract)).call{gas: 30000,value: amountETH.mul(memeFee).div(_memeDenominator)}() (#914-917)
State variables written after the call(s):
- maxSellInEpoch[sender][epoch] = currentMaxSell (#850-853)
- maxSellInEpoch[sender][epoch] = maxSellInEpoch[sender][epoch] (#850-853)
- sell[sender][epoch] = sell[sender][epoch].add(gonAmount) (#858)
Reentrancy in Remedao.constructor() (#677-695):
External calls:
- pair = IPancakeSwapFactory(router.factory()).createPair(router.WETH(),address(this)) (#679-682)
State variables written after the call(s):
- _allowedFragments[address(this)][address(router)] = MAX_UINT256 (#691)
- _gonBalances[treasuryReceiver] = TOTAL_GONS (#690)
- _isFeeExempt[address(this)] = true (#688)
- _isFeeExempt[treasuryReceiver] = true (#689)
- _memeStartTime = block.timestamp (#687)
- pairAddress = pair (#684)
- pairContract = IPancakeSwapPair(pair) (#685)
Reentrancy in Remedao.rebase() (#714-753):
External calls:
- pairContract.sync() (#737)
State variables written after the call(s):
- _gonBalances[lockAddress] = lockMaxBalance.mul(gonsPerFragment) (#741)
- _gonBalances[offChainGameReceiver] = _gonBalances[offChainGameReceiver].add(_gonBalances[lockAddress] - lockMaxBalance.mul(gonsPerFragment)) (#742-747)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Remedao._transferFrom(address,address,uint256) (#828-878):
External calls:
- rebase() (#842)
- pairContract.sync() (#737)
- swapBack() (#844)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#778-784)
- (success) = address(treasuryReceiver).call{gas: 30000,value: amountETH.mul(treasuryFee).div(_memeDenominator)}() (#905-908)
- (success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
- (success,None) = address(address(voteContract)).call{gas: 30000,value: amountETH.mul(memeFee).div(_memeDenominator)}() (#914-917)
External calls sending eth:
- swapBack() (#844)
- (success) = address(treasuryReceiver).call{gas: 30000,value: amountETH.mul(treasuryFee).div(_memeDenominator)}() (#905-908)
- (success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
- (success,None) = address(address(voteContract)).call{gas: 30000,value: amountETH.mul(memeFee).div(_memeDenominator)}() (#914-917)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount.div(gonsPerFragment)) (#891)
- gonAmountReceived = takeFee(sender,gonAmount) (#862-864)
- Transfer(sender,recipient,gonAmountReceived.div(gonsPerFragment)) (#872-876)
Reentrancy in Remedao.constructor() (#677-695):
External calls:
- pair = IPancakeSwapFactory(router.factory()).createPair(router.WETH(),address(this)) (#679-682)
Event emitted after the call(s):
- Transfer(address(0),treasuryReceiver,_totalSupply) (#693)
Reentrancy in Remedao.rebase() (#714-753):
External calls:
- pairContract.sync() (#737)
Event emitted after the call(s):
- Rebase(epoch,_totalSupply) (#752)
Apply the check-effects-interactions pattern.

Additional information: link

Remedao.rebase() (#714-753) uses timestamp for comparisons
Dangerous comparisons:
- deltaTimeFromInit < (31536000) (#722)
- deltaTimeFromInit >= (5 * 31536000) (#724)
- deltaTimeFromInit >= ((15 * 31536000) / 10) (#726)
- deltaTimeFromInit >= (31536000) (#728)
- balanceOf(lockAddress) > lockMaxBalance (#740)
Remedao.shouldRebase() (#763-771) uses timestamp for comparisons
Dangerous comparisons:
- isStartRebase && _autoRebase && msg.sender != pair && ! inSwap && epoch > _rebaseEpoch (#765-770)
Remedao._transferFrom(address,address,uint256) (#828-878) uses timestamp for comparisons
Dangerous comparisons:
- require(bool)(! voteContract.lockVote(epoch,sender)) (#837)
- require(bool)(sell[sender][epoch].add(gonAmount) <= maxSellInEpoch[sender][epoch]) (#854-857)
Remedao._valueAt(uint256,Remedao.Snapshots) (#1080-1096) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(snapshotId <= currentMemeEpoch(),ERC20Snapshot: nonexistent id) (#1086-1089)
Remedao._updateSnapshot(Remedao.Snapshots,uint256) (#1102-1112) uses timestamp for comparisons
Dangerous comparisons:
- _lastSnapshotId(snapshots.ids) < currentId (#1106)
Avoid relying on block.timestamp.

Additional information: link

Math.average(uint256,uint256) (#97-99) is never used and should be removed
Math.max(uint256,uint256) (#89-91) is never used and should be removed
Math.min(uint256,uint256) (#93-95) is never used and should be removed
SafeMath.mod(uint256,uint256) (#82-85) is never used and should be removed
SafeMathInt.abs(int256) (#32-35) is never used and should be removed
SafeMathInt.add(int256,int256) (#26-30) is never used and should be removed
SafeMathInt.div(int256,int256) (#15-18) is never used and should be removed
SafeMathInt.mul(int256,int256) (#8-13) is never used and should be removed
SafeMathInt.sub(int256,int256) (#20-24) is never used and should be removed
Remove unused functions.

Additional information: link

Remedao.totalFee (#641) is set pre-construction with a non-constant function or state variable:
- treasuryFee.add(insuranceFundFee).add(memeFee)
Remedao.gonsPerFragment (#670) is set pre-construction with a non-constant function or state variable:
- TOTAL_GONS.div(_totalSupply)
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

Pragma version^0.8.0 (#2) allows old versions
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.

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Low level call in Remedao.setVoteContract(address) (#697-712):
- (success) = address(address(voteContract)).call{gas: 30000,value: address(this).balance}() (#705-708)
Low level call in Remedao.swapBack() (#895-919):
- (success) = address(treasuryReceiver).call{gas: 30000,value: amountETH.mul(treasuryFee).div(_memeDenominator)}() (#905-908)
- (success,None) = address(insuranceFundReceiver).call{gas: 30000,value: amountETH.mul(insuranceFundFee).div(_memeDenominator)}() (#909-912)
- (success,None) = address(address(voteContract)).call{gas: 30000,value: amountETH.mul(memeFee).div(_memeDenominator)}() (#914-917)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IPancakeSwapPair.DOMAIN_SEPARATOR() (#164) is not in mixedCase
Function IPancakeSwapPair.PERMIT_TYPEHASH() (#166) is not in mixedCase
Function IPancakeSwapPair.MINIMUM_LIQUIDITY() (#197) is not in mixedCase
Function IPancakeSwapRouter.WETH() (#243) is not in mixedCase
Function IRemedao.TOTAL_GONS() (#573) is not in mixedCase
Parameter Remedao.setVoteContract(address)._address (#697) is not in mixedCase
Parameter Remedao.setLockAddress(address)._address (#940) is not in mixedCase
Parameter Remedao.checkFeeExempt(address)._addr (#999) is not in mixedCase
Parameter Remedao.setFeeReceivers(address,address,address)._treasuryReceiver (#1008) is not in mixedCase
Parameter Remedao.setFeeReceivers(address,address,address)._insuranceFundReceiver (#1009) is not in mixedCase
Parameter Remedao.setFeeReceivers(address,address,address)._offChainGameReceiver (#1010) is not in mixedCase
Parameter Remedao.setMaxSell(uint256)._maxSell (#1017) is not in mixedCase
Parameter Remedao.setFee(uint256,uint256,uint256)._treasuryFee (#1023) is not in mixedCase
Parameter Remedao.setFee(uint256,uint256,uint256)._insuranceFundFee (#1024) is not in mixedCase
Parameter Remedao.setFee(uint256,uint256,uint256)._memeFee (#1025) is not in mixedCase
Parameter Remedao.setWhitelist(address,bool)._addr (#1034) is not in mixedCase
Parameter Remedao.setWhitelist(address,bool)._flag (#1034) is not in mixedCase
Parameter Remedao.setBotBlacklist(address,bool)._botAddress (#1038) is not in mixedCase
Parameter Remedao.setBotBlacklist(address,bool)._flag (#1038) is not in mixedCase
Parameter Remedao.setPairAddress(address)._pairAddress (#1049) is not in mixedCase
Parameter Remedao.setLP(address)._address (#1055) is not in mixedCase
Variable Remedao._isFeeExempt (#620) is not in mixedCase
Constant Remedao.feeDenominator (#642) is not in UPPER_CASE_WITH_UNDERSCORES
Constant Remedao.maxSellDenominator (#645) is not in UPPER_CASE_WITH_UNDERSCORES
Variable Remedao._autoRebase (#664) is not in mixedCase
Variable Remedao._rebaseStartTime (#665) is not in mixedCase
Variable Remedao._memeStartTime (#666) is not in mixedCase
Variable Remedao._totalSupply (#668) is not in mixedCase
Variable Remedao._rebaseEpoch (#671) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IPancakeSwapRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#248) is too similar to IPancakeSwapRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#249)
Prevent variables from having similar names.

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SafeMathInt.MAX_INT256 (#6) is never used in SafeMathInt (#4-36)
Remove unused state variables.

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owner() should be declared external:
- Ownable.owner() (#486-488)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#499-502)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#504-506)
name() should be declared external:
- IERC20Metadata.name() (#559-561)
symbol() should be declared external:
- IERC20Metadata.symbol() (#563-565)
decimals() should be declared external:
- IERC20Metadata.decimals() (#567-569)
setPairAddress(address) should be declared external:
- Remedao.setPairAddress(address) (#1049-1053)
gonOfAt(address,uint256) should be declared external:
- Remedao.gonOfAt(address,uint256) (#1071-1078)
Use the external attribute for functions never called from the contract.

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Contract ownership is semi-renounced (passed to a contract)

Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.

Number of Binance Smart Chain (BSC) token holders is low.

BscScan page for the token does not contain additional info: website, socials, description, etc.

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Unable to find token on CoinGecko

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Unable to find token on CoinMarketCap

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Token is not listed at Mobula.Finance

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Unable to find code repository for the project

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

Token is marked as scam (rug pull, honeypot, phishing, etc.)

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

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

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank