BITD [8BIT DOGE] Token

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

Reentrancy in The8BitDoge._transfer(address,address,uint256) (#1025-1053):
External calls:
- swapAndLiquify(contractTokenBalance) (#1048)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1048)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
State variables written after the call(s):
- _tokenTransfer(from,to,amount) (#1052)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#982)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1155)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1164)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#923)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1175)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1156)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1166)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1176)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#925)
- _tokenTransfer(from,to,amount) (#1052)
- _rTotal = _rTotal.sub(rFee) (#937)
- _tokenTransfer(from,to,amount) (#1052)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#984)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#922)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1174)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1165)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#924)
Apply the check-effects-interactions pattern.

Additional information: link

The8BitDoge.addLiquidity(uint256,uint256) (#1096-1109) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
Ensure that all the return values of the function calls are used.

Additional information: link

The8BitDoge._approve(address,address,uint256).owner (#1017) shadows:
- Ownable.owner() (#467-469) (function)
Rename the local variables that shadow another component.

Additional information: link

The8BitDoge.setMaxTxPercent(uint256) (#1221-1226) should emit an event for:
- _maxTxAmount = _tTotal.mul(maxTxPercent).div(10 ** 2) (#1223-1225)
Emit an event for critical parameter changes.

Additional information: link

The8BitDoge.setmarketingWallet(address).newWallet (#1217) lacks a zero-check on :
- marketingWallet = newWallet (#1218)
Check that the address is not zero.

Additional information: link

Reentrancy in The8BitDoge.transferFrom(address,address,uint256) (#847-851):
External calls:
- _transfer(sender,recipient,amount) (#848)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
External calls sending eth:
- _transfer(sender,recipient,amount) (#848)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#849)
- _allowances[owner][spender] = amount (#1021)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in The8BitDoge.transferFrom(address,address,uint256) (#847-851):
External calls:
- _transfer(sender,recipient,amount) (#848)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1087-1093)
External calls sending eth:
- _transfer(sender,recipient,amount) (#848)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1101-1108)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1022)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#849)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#514-519) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#516)
Avoid relying on block.timestamp.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#412-433) uses assembly
- INLINE ASM (#425-428)
Do not use evm assembly.

Additional information: link

SafeMath.mod(uint256,uint256,string) (#280-283) is never used and should be removed
Remove unused functions.

Additional information: link

The8BitDoge._previousmarketingFee (#769) is set pre-construction with a non-constant function or state variable:
- _marketingFee
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

Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#412-433):
- (success,returndata) = target.call{value: weiValue}(data) (#416)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

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Variable The8BitDoge._maxTxAmount (#777) is not in mixedCase
Follow the Solidity naming convention.

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Redundant expression "this (#292)" inContext (#286-295)
Remove redundant statements if they congest code but offer no value.

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Variable The8BitDoge._getValues(uint256).rTransferAmount (#943) is too similar to The8BitDoge._getValues(uint256).tTransferAmount (#942)
Prevent variables from having similar names.

Additional information: link

The8BitDoge.numTokensSellToAddToLiquidity (#778) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

setSwapAndLiquifyEnabled(bool) should be declared external:
- The8BitDoge.setSwapAndLiquifyEnabled(bool) (#1228-1231)
Use the external attribute for functions never called from the contract.

Additional information: link

Average 30d PancakeSwap volume is low.

Average PancakeSwap trading volume, liqudity, number of swaps are low. Token seems to be inactive.

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

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

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

Token has a considerable age, but social accounts / website are missing or have few users

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinGecko rank