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ULTI [ULTI Coin] Token

About ULTI

Listings

Token 15 months
CoinMarketCap 15 months
white paper

Ulti Arena is a GameFi/NFT project that aims to revolutionize NFT gaming space with their products:

- NFT Marketplace for game assets, where buyers and sellers can trade unique 2D/3D assets, music, sound, and UI/HUD elements,
- Proof-of-Gaming, a gaming client allowing players to earn ULTI tokens when playing games such as DOTA2, LOL, CSGO, PUBG, Mobile Legends, and more,
- Crypto Trading Card game, built in collaboration with Remote Control Productions and Frag Games: Ultimate Battle Arena where every card is an NFT

Laser Scorebeta Last Audit: 30 November 2021

report
Token seems to be (relatively) fine. It still become a scam, but probability is moderate.

TokensLiquify._addLiquidity(uint256,uint256,address) (contracts/extensions/TokensLiquify.sol#77-92) sends eth to arbitrary user
Dangerous calls:
- (amountToken,amountBNB,liquidity) = swapRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lpReceiver,block.timestamp) (contracts/extensions/TokensLiquify.sol#82-90)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

UltiCoin._blacklistFrontRunners(address) (contracts/UltiCoin.sol#315-321) uses a dangerous strict equality:
- launchTime == 0 || block.timestamp < launchTime + 5 (contracts/UltiCoin.sol#316)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link

UltiCoin.setRewardExclusion(address,bool) (contracts/UltiCoin.sol#216-231) ignores return value by _excludedFromReward.add(account) (contracts/UltiCoin.sol#227)
Ensure that all the return values of the function calls are used.

Additional information: link

UltiCoin._approve(address,address,uint256).owner (contracts/UltiCoin.sol#259) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#35-37) (function)
Rename the local variables that shadow another component.

Additional information: link

UltiCoin.setSwapCooldownDuration(uint256) (contracts/UltiCoin.sol#207-209) should emit an event for:
- swapCooldownDuration = duration (contracts/UltiCoin.sol#208)
Emit an event for critical parameter changes.

Additional information: link

Reentrancy in UltiCoin.transferFrom(address,address,uint256) (contracts/UltiCoin.sol#137-145):
External calls:
- _transfer(sender,recipient,amount) (contracts/UltiCoin.sol#142)
- (amountToken,amountBNB,liquidity) = swapRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lpReceiver,block.timestamp) (contracts/extensions/TokensLiquify.sol#82-90)
- swapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/extensions/TokensLiquify.sol#64-70)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/UltiCoin.sol#142)
- (amountToken,amountBNB,liquidity) = swapRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lpReceiver,block.timestamp) (contracts/extensions/TokensLiquify.sol#82-90)
State variables written after the call(s):
- _approve(sender,msg.sender,_allowances[sender][msg.sender] - amount) (contracts/UltiCoin.sol#143)
- _allowances[owner][spender] = amount (contracts/UltiCoin.sol#266)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in UltiCoin.transferFrom(address,address,uint256) (contracts/UltiCoin.sol#137-145):
External calls:
- _transfer(sender,recipient,amount) (contracts/UltiCoin.sol#142)
- (amountToken,amountBNB,liquidity) = swapRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lpReceiver,block.timestamp) (contracts/extensions/TokensLiquify.sol#82-90)
- swapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/extensions/TokensLiquify.sol#64-70)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/UltiCoin.sol#142)
- (amountToken,amountBNB,liquidity) = swapRouter.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,lpReceiver,block.timestamp) (contracts/extensions/TokensLiquify.sol#82-90)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/UltiCoin.sol#267)
- _approve(sender,msg.sender,_allowances[sender][msg.sender] - amount) (contracts/UltiCoin.sol#143)
Apply the check-effects-interactions pattern.

Additional information: link

UltiCoin._checkSwapCooldown(address,address) (contracts/UltiCoin.sol#348-353) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(statuses[recipient].swapCooldown < block.timestamp,Swap is cooling down) (contracts/UltiCoin.sol#350)
Avoid relying on block.timestamp.

Additional information: link

Different versions of Solidity is used:
- Version used: ['^0.8.0', '^0.8.6']
- ^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#3)
- ^0.8.6 (contracts/UltiCoin.sol#3)
- ^0.8.6 (contracts/extensions/TokensLiquify.sol#3)
- ^0.8.6 (contracts/interfaces/IBEP20.sol#3)
- ^0.8.6 (contracts/interfaces/IPancakeFactory.sol#6)
- ^0.8.6 (contracts/interfaces/IPancakeRouter01.sol#6)
- ^0.8.6 (contracts/interfaces/IPancakeRouter02.sol#6)
Use one Solidity version.

Additional information: link

EnumerableSet.remove(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#266-268) is never used and should be removed
Remove unused functions.

Additional information: link

UltiCoin._rTotal (contracts/UltiCoin.sol#40) is set pre-construction with a non-constant function or state variable:
- (type()(uint256).max - (type()(uint256).max % _tTotal))
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-0.8.6 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

Function IPancakeRouter01.WETH() (contracts/interfaces/IPancakeRouter01.sol#11) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (@openzeppelin/contracts/utils/Context.sol#21)" inContext (@openzeppelin/contracts/utils/Context.sol#15-24)
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 (contracts/interfaces/IPancakeRouter01.sol#16) is too similar to IPancakeRouter01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (contracts/interfaces/IPancakeRouter01.sol#17)
Prevent variables from having similar names.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#54-57)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Token is deployed only at one blockchain


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute number of swaps.


Twitter account link seems to be invalid


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

Additional information: link


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

Price for ULTI