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TKRN [Runner] Token

About TKRN

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Token 17 days

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TokenRunner avant-garde launchpad (Incubator & Accelerator) with applications designed to run a project from birth (initial stage) to standalone created for the BNBChain community.
🛡️Approved incubated projects
↗️Project accelerator
💧Liquidity locker
🔐Token vesting for projects
↔️Multiple token access
📃Holders defined whitelist.
3% tax with limited supply. TokenRunner is featured as Ingress incubated project.

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Laser Scorebeta Last Audit: 5 August 2022

report
Token is either risky or in presale. For presale 30+ is a fine score.

Reentrancy in TKRN._transfer(address,address,uint256) (#526-581):
External calls:
- swapAndLiquify(contractTokenBalance) (#548)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#602-608)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#548)
- address(marketingaddress).transfer(address(this).balance) (#588)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#568)
- _balances[recipient] = _balances[recipient].add(TotalSent) (#569)
- _balances[address(this)] = _balances[address(this)].add(taxAmount) (#570)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#576)
- _balances[recipient] = _balances[recipient].add(amount) (#577)
Apply the check-effects-interactions pattern.

Additional information: link

TKRN._owner (#431) shadows:
- Ownable._owner (#63)
Remove the state variable shadowing.

Additional information: link


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


Contract ownership is not renounced (belongs to a wallet)

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#215) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#216) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#233) is not in mixedCase
Function IUniswapV2Router01.WETH() (#255) is not in mixedCase
Parameter TKRN.setSwapAndLiquifyEnabled(bool)._enabled (#504) is not in mixedCase
Parameter TKRN.changeNumTokensSellToFee(uint256)._numTokensSellToFee (#509) is not in mixedCase
Variable TKRN._balances (#398) is not in mixedCase
Variable TKRN._allowances (#399) is not in mixedCase
Variable TKRN._totalSupply (#402) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

TKRN.setBuyMarketingFeePercent(uint256) (#486-490) should emit an event for:
- buyMarketingFee = updatedBuyMarketingFee (#488)
TKRN.setSellMarketingFeePercent(uint256) (#492-496) should emit an event for:
- sellMarketingFee = updatedSellMarketingFee (#494)
TKRN.changeNumTokensSellToFee(uint256) (#509-513) should emit an event for:
- numTokensSellToFee = _numTokensSellToFee (#512)
Emit an event for critical parameter changes.

Additional information: link

TKRN.setMarketingAddress(address).wallet (#498) lacks a zero-check on :
- marketingaddress = wallet (#500)
Check that the address is not zero.

Additional information: link

Reentrancy in TKRN._transfer(address,address,uint256) (#526-581):
External calls:
- swapAndLiquify(contractTokenBalance) (#548)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#602-608)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#548)
- address(marketingaddress).transfer(address(this).balance) (#588)
State variables written after the call(s):
- marketingFee = buyMarketingFee (#564)
- marketingFee = sellMarketingFee (#565)
Reentrancy in TKRN.constructor() (#433-453):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#441-442)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#448)
- _isExcludedFromFee[address(this)] = true (#449)
- _isExcludedFromFee[marketingaddress] = true (#450)
- uniswapV2Router = _uniswapV2Router (#445)
Reentrancy in TKRN.transferFrom(address,address,uint256) (#472-476):
External calls:
- _transfer(sender,recipient,amount) (#473)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#602-608)
External calls sending eth:
- _transfer(sender,recipient,amount) (#473)
- address(marketingaddress).transfer(address(this).balance) (#588)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (#474)
- _allowances[towner][spender] = amount (#616)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in TKRN._transfer(address,address,uint256) (#526-581):
External calls:
- swapAndLiquify(contractTokenBalance) (#548)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#602-608)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#548)
- address(marketingaddress).transfer(address(this).balance) (#588)
Event emitted after the call(s):
- Transfer(sender,recipient,TotalSent) (#571)
- Transfer(sender,address(this),taxAmount) (#572)
- Transfer(sender,recipient,amount) (#578)
Reentrancy in TKRN.constructor() (#433-453):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#441-442)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_totalSupply) (#452)
Reentrancy in TKRN.swapAndLiquify(uint256) (#583-591):
External calls:
- swapTokensForEth(contractTokenBalance) (#586)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#602-608)
External calls sending eth:
- address(marketingaddress).transfer(address(this).balance) (#588)
Event emitted after the call(s):
- SwapAndLiquify(contractTokenBalance,address(this).balance) (#590)
Reentrancy in TKRN.transferFrom(address,address,uint256) (#472-476):
External calls:
- _transfer(sender,recipient,amount) (#473)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#602-608)
External calls sending eth:
- _transfer(sender,recipient,amount) (#473)
- address(marketingaddress).transfer(address(this).balance) (#588)
Event emitted after the call(s):
- Approval(towner,spender,amount) (#617)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (#474)
Apply the check-effects-interactions pattern.

Additional information: link

Address.isContract(address) (#142-148) uses assembly
- INLINE ASM (#146)
Do not use evm assembly.

Additional information: link

Address.isContract(address) (#142-148) is never used and should be removed
SafeBEP20.callOptionalReturn(IBEP20,bytes) (#169-180) is never used and should be removed
SafeBEP20.safeApprove(IBEP20,address,uint256) (#163-168) is never used and should be removed
SafeBEP20.safeTransfer(IBEP20,address,uint256) (#155-157) is never used and should be removed
SafeBEP20.safeTransferFrom(IBEP20,address,address,uint256) (#159-161) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.8.15 (#3) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.15 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 SafeBEP20.callOptionalReturn(IBEP20,bytes) (#169-180):
- (success,returndata) = address(token).call(data) (#173)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Reentrancy in TKRN._transfer(address,address,uint256) (#526-581):
External calls:
- swapAndLiquify(contractTokenBalance) (#548)
- address(marketingaddress).transfer(address(this).balance) (#588)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#568)
- _balances[recipient] = _balances[recipient].add(TotalSent) (#569)
- _balances[address(this)] = _balances[address(this)].add(taxAmount) (#570)
- _balances[sender] = _balances[sender].sub(amount,BEP20: transfer amount exceeds balance) (#576)
- _balances[recipient] = _balances[recipient].add(amount) (#577)
- marketingFee = buyMarketingFee (#564)
- marketingFee = sellMarketingFee (#565)
Event emitted after the call(s):
- Transfer(sender,recipient,TotalSent) (#571)
- Transfer(sender,address(this),taxAmount) (#572)
- Transfer(sender,recipient,amount) (#578)
Reentrancy in TKRN.swapAndLiquify(uint256) (#583-591):
External calls:
- address(marketingaddress).transfer(address(this).balance) (#588)
Event emitted after the call(s):
- SwapAndLiquify(contractTokenBalance,address(this).balance) (#590)
Reentrancy in TKRN.transferFrom(address,address,uint256) (#472-476):
External calls:
- _transfer(sender,recipient,amount) (#473)
- address(marketingaddress).transfer(address(this).balance) (#588)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (#474)
- _allowances[towner][spender] = amount (#616)
Event emitted after the call(s):
- Approval(towner,spender,amount) (#617)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (#474)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#260) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#261)
Prevent variables from having similar names.

Additional information: link

TKRN.constructor() (#433-453) uses literals with too many digits:
- _totalSupply = 15000000 * (10 ** 18) (#435)
TKRN.changeNumTokensSellToFee(uint256) (#509-513) uses literals with too many digits:
- require(bool,string)(_numTokensSellToFee >= 5000 * 10 ** 18 && _numTokensSellToFee <= 1000000 * 10 ** 18,out of set parameters) (#511)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#98-101)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#107-111)
name() should be declared external:
- BEP20Detailed.name() (#128-130)
symbol() should be declared external:
- BEP20Detailed.symbol() (#131-133)
decimals() should be declared external:
- BEP20Detailed.decimals() (#134-136)
totalSupply() should be declared external:
- TKRN.totalSupply() (#455-457)
transfer(address,uint256) should be declared external:
- TKRN.transfer(address,uint256) (#461-464)
allowance(address,address) should be declared external:
- TKRN.allowance(address,address) (#465-467)
approve(address,uint256) should be declared external:
- TKRN.approve(address,uint256) (#468-471)
transferFrom(address,address,uint256) should be declared external:
- TKRN.transferFrom(address,address,uint256) (#472-476)
increaseAllowance(address,uint256) should be declared external:
- TKRN.increaseAllowance(address,uint256) (#477-480)
decreaseAllowance(address,uint256) should be declared external:
- TKRN.decreaseAllowance(address,uint256) (#481-484)
setSwapAndLiquifyEnabled(bool) should be declared external:
- TKRN.setSwapAndLiquifyEnabled(bool) (#504-507)
excludeFromFee(address) should be declared external:
- TKRN.excludeFromFee(address) (#515-517)
includeInFee(address) should be declared external:
- TKRN.includeInFee(address) (#519-521)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


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 less than 100. Token is either dead or inactive. Ignore for presale.


Unable to find Blog account (Reddit or Medium)


Unable to find Discord account


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

Additional information: link


Unable to find Telegram link on the website


Unable to find token on CoinGecko

Additional information: link


Unable to find token on CoinMarketCap

Additional information: link


Token is not listed at Mobula.Finance

Additional information: link


Unable to find token on CoinHunt

Additional information: link


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


Token has no active CoinGecko listing / rank


Token has no active CoinMarketCap listing / rank


Token is relatively young, but twitter if very old (probably it's fake).

Price for TKRN

News for TKRN