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GMEE [GAMEE] Token

About GMEE

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Token 7 months
CoinMarketCap 13 months
white paper

GAMEE is a high-engagement gaming platform, where users complete game missions, compete in tournaments and earn prizes for their activity.

Our vision is to create an entertainment platform accessible to anyone, connecting gamers and game creators to recognize and reward gaming skill, effort and loyalty.

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Laser Scorebeta Last Audit: 2 March 2022

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

AnyswapV5ERC20.depositWithTransferPermit(address,uint256,uint256,uint8,bytes32,bytes32,address) (#343-346) ignores return value by IERC20(underlying).transferWithPermit(target,address(this),value,deadline,v,r,s) (#344)
Ensure that all the return values of the function calls are used.

Additional information: link

AnyswapV5ERC20.initVault(address)._vault (#207) lacks a zero-check on :
- vault = _vault (#209)
- pendingVault = _vault (#210)
AnyswapV5ERC20.setMinter(address)._auth (#217) lacks a zero-check on :
- pendingMinter = _auth (#218)
AnyswapV5ERC20.setVault(address)._vault (#222) lacks a zero-check on :
- pendingVault = _vault (#223)
AnyswapV5ERC20.constructor(string,string,uint8,address,address)._underlying (#302) lacks a zero-check on :
- underlying = _underlying (#306)
AnyswapV5ERC20.constructor(string,string,uint8,address,address)._vault (#302) lacks a zero-check on :
- vault = _vault (#317)
- pendingVault = _vault (#318)
Check that the address is not zero.

Additional information: link

Reentrancy in AnyswapV5ERC20.deposit() (#348-352):
External calls:
- IERC20(underlying).safeTransferFrom(msg.sender,address(this),_amount) (#350)
State variables written after the call(s):
- _deposit(_amount,msg.sender) (#351)
- _totalSupply += amount (#408)
- _deposit(_amount,msg.sender) (#351)
- balanceOf[account] += amount (#409)
Reentrancy in AnyswapV5ERC20.deposit(uint256) (#354-357):
External calls:
- IERC20(underlying).safeTransferFrom(msg.sender,address(this),amount) (#355)
State variables written after the call(s):
- _deposit(amount,msg.sender) (#356)
- _totalSupply += amount (#408)
- _deposit(amount,msg.sender) (#356)
- balanceOf[account] += amount (#409)
Reentrancy in AnyswapV5ERC20.deposit(uint256,address) (#359-362):
External calls:
- IERC20(underlying).safeTransferFrom(msg.sender,address(this),amount) (#360)
State variables written after the call(s):
- _deposit(amount,to) (#361)
- _totalSupply += amount (#408)
- _deposit(amount,to) (#361)
- balanceOf[account] += amount (#409)
Reentrancy in AnyswapV5ERC20.depositWithPermit(address,uint256,uint256,uint8,bytes32,bytes32,address) (#337-341):
External calls:
- IERC20(underlying).permit(target,address(this),value,deadline,v,r,s) (#338)
- IERC20(underlying).safeTransferFrom(target,address(this),value) (#339)
State variables written after the call(s):
- _deposit(value,to) (#340)
- _totalSupply += amount (#408)
- _deposit(value,to) (#340)
- balanceOf[account] += amount (#409)
Reentrancy in AnyswapV5ERC20.depositWithTransferPermit(address,uint256,uint256,uint8,bytes32,bytes32,address) (#343-346):
External calls:
- IERC20(underlying).transferWithPermit(target,address(this),value,deadline,v,r,s) (#344)
State variables written after the call(s):
- _deposit(value,to) (#345)
- _totalSupply += amount (#408)
- _deposit(value,to) (#345)
- balanceOf[account] += amount (#409)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in AnyswapV5ERC20.deposit() (#348-352):
External calls:
- IERC20(underlying).safeTransferFrom(msg.sender,address(this),_amount) (#350)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#410)
- _deposit(_amount,msg.sender) (#351)
Reentrancy in AnyswapV5ERC20.deposit(uint256) (#354-357):
External calls:
- IERC20(underlying).safeTransferFrom(msg.sender,address(this),amount) (#355)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#410)
- _deposit(amount,msg.sender) (#356)
Reentrancy in AnyswapV5ERC20.deposit(uint256,address) (#359-362):
External calls:
- IERC20(underlying).safeTransferFrom(msg.sender,address(this),amount) (#360)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#410)
- _deposit(amount,to) (#361)
Reentrancy in AnyswapV5ERC20.depositWithPermit(address,uint256,uint256,uint8,bytes32,bytes32,address) (#337-341):
External calls:
- IERC20(underlying).permit(target,address(this),value,deadline,v,r,s) (#338)
- IERC20(underlying).safeTransferFrom(target,address(this),value) (#339)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#410)
- _deposit(value,to) (#340)
Reentrancy in AnyswapV5ERC20.depositWithTransferPermit(address,uint256,uint256,uint8,bytes32,bytes32,address) (#343-346):
External calls:
- IERC20(underlying).transferWithPermit(target,address(this),value,deadline,v,r,s) (#344)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#410)
- _deposit(value,to) (#345)
Apply the check-effects-interactions pattern.

Additional information: link

AnyswapV5ERC20.mpc() (#196-201) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp >= delayVault (#197)
AnyswapV5ERC20.applyVault() (#227-230) uses timestamp for comparisons
Dangerous comparisons:
- require(bool)(block.timestamp >= delayVault) (#228)
AnyswapV5ERC20.applyMinter() (#232-236) uses timestamp for comparisons
Dangerous comparisons:
- require(bool)(block.timestamp >= delayMinter) (#233)
AnyswapV5ERC20.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (#465-482) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= deadline,AnyswapV3ERC20: Expired permit) (#466)
AnyswapV5ERC20.transferWithPermit(address,address,uint256,uint256,uint8,bytes32,bytes32) (#484-508) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= deadline,AnyswapV3ERC20: Expired permit) (#485)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#99-105) uses assembly
- INLINE ASM (#103)
AnyswapV5ERC20.constructor(string,string,uint8,address,address) (#302-330) uses assembly
- INLINE ASM (#322)
Do not use evm assembly.

Additional information: link

SafeERC20.safeApprove(IERC20,address,uint256) (#119-124) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version0.8.2 (#27) allows old versions
solc-0.8.2 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 SafeERC20.callOptionalReturn(IERC20,bytes) (#125-136):
- (success,returndata) = address(token).call(data) (#129)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Parameter AnyswapV5ERC20.initVault(address)._vault (#207) is not in mixedCase
Parameter AnyswapV5ERC20.setMinter(address)._auth (#217) is not in mixedCase
Parameter AnyswapV5ERC20.setVault(address)._vault (#222) is not in mixedCase
Parameter AnyswapV5ERC20.revokeMinter(address)._auth (#239) is not in mixedCase
Function AnyswapV5ERC20.Swapin(bytes32,address,uint256) (#275-279) is not in mixedCase
Function AnyswapV5ERC20.Swapout(uint256,address) (#281-287) is not in mixedCase
Variable AnyswapV5ERC20.DOMAIN_SEPARATOR (#149) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

AnyswapV5ERC20.delay (#162) should be constant
AnyswapV5ERC20.delayDelay (#179) should be constant
AnyswapV5ERC20.pendingDelay (#178) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

owner() should be declared external:
- AnyswapV5ERC20.owner() (#192-194)
changeMPCOwner(address) should be declared external:
- AnyswapV5ERC20.changeMPCOwner(address) (#256-262)
Swapin(bytes32,address,uint256) should be declared external:
- AnyswapV5ERC20.Swapin(bytes32,address,uint256) (#275-279)
Swapout(uint256,address) should be declared external:
- AnyswapV5ERC20.Swapout(uint256,address) (#281-287)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:
No disclosed threats


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