DEFINA TOKEN Token Logo

FINA [DEFINA] Token

About FINA

Listings

Token 11 months
CoinGecko 11 months
CoinMarketCap 11 months
white paper

Defina Finance is an online blockchain game that utilizes and combines decentralized finance (Defi) and NFT to allow players to own their gaming assets and monetize them through playing and training.

Social

Laser Scorebeta Last Audit: 19 April 2022

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

Anti-Scam

Links

FinaToken.pullFunds(address) (contracts/FinaToken.sol#73-80) ignores return value by token.transfer(_msgSender(),token.balanceOf(address(this))) (contracts/FinaToken.sol#78)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

FinaToken.pullFunds(address) (contracts/FinaToken.sol#73-80) sends eth to arbitrary user
Dangerous calls:
- address(_msgSender()).transfer(address(this).balance) (contracts/FinaToken.sol#75)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link


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

ERC20Votes._writeCheckpoint(ERC20Votes.Checkpoint[],function(uint256,uint256) returns(uint256),uint256) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#236-250) uses a dangerous strict equality:
- pos > 0 && ckpts[pos - 1].fromBlock == block.number (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#245)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link


Combination 2: Unchecked transfer + 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.


Contract ownership is not renounced (belongs to a wallet)

ERC20Votes._moveVotingPower(address,address,uint256).newWeight_scope_1 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#230) is a local variable never initialized
ERC20Votes._moveVotingPower(address,address,uint256).oldWeight_scope_0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#230) 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.

Additional information: link

AccessControlEnumerable.grantRole(bytes32,address) (@openzeppelin/contracts/access/AccessControlEnumerable.sol#51-54) ignores return value by _roleMembers[role].add(account) (@openzeppelin/contracts/access/AccessControlEnumerable.sol#53)
AccessControlEnumerable.revokeRole(bytes32,address) (@openzeppelin/contracts/access/AccessControlEnumerable.sol#59-62) ignores return value by _roleMembers[role].remove(account) (@openzeppelin/contracts/access/AccessControlEnumerable.sol#61)
AccessControlEnumerable.renounceRole(bytes32,address) (@openzeppelin/contracts/access/AccessControlEnumerable.sol#67-70) ignores return value by _roleMembers[role].remove(account) (@openzeppelin/contracts/access/AccessControlEnumerable.sol#69)
AccessControlEnumerable._setupRole(bytes32,address) (@openzeppelin/contracts/access/AccessControlEnumerable.sol#75-78) ignores return value by _roleMembers[role].add(account) (@openzeppelin/contracts/access/AccessControlEnumerable.sol#77)
Ensure that all the return values of the function calls are used.

Additional information: link

ERC20Permit.constructor(string).name (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#35) shadows:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#61-63) (function)
- IERC20Metadata.name() (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#16) (function)
Rename the local variables that shadow another component.

Additional information: link

Variable 'ERC20Votes._moveVotingPower(address,address,uint256).oldWeight (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#225)' in ERC20Votes._moveVotingPower(address,address,uint256) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#218-234) potentially used before declaration: (oldWeight,newWeight) = _writeCheckpoint(_checkpoints[dst],_add,amount) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#230)
Variable 'ERC20Votes._moveVotingPower(address,address,uint256).newWeight (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#225)' in ERC20Votes._moveVotingPower(address,address,uint256) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#218-234) potentially used before declaration: (oldWeight,newWeight) = _writeCheckpoint(_checkpoints[dst],_add,amount) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#230)
Variable 'ECDSA.tryRecover(bytes32,bytes).r (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#59)' in ECDSA.tryRecover(bytes32,bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#54-83) potentially used before declaration: r = mload(uint256)(signature + 0x20) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#76)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.

Additional information: link

ERC20Votes.delegateBySig(address,uint256,uint256,uint8,bytes32,bytes32) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#143-160) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= expiry,ERC20Votes: signature expired) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#151)
ERC20Permit.permit(address,address,uint256,uint256,uint8,bytes32,bytes32) (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#40-59) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= deadline,ERC20Permit: expired deadline) (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#49)
Avoid relying on block.timestamp.

Additional information: link

ECDSA.tryRecover(bytes32,bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#54-83) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#64-68)
- INLINE ASM (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#75-78)
ECDSA.tryRecover(bytes32,bytes32,bytes32) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#112-124) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#119-122)
EnumerableSet.values(EnumerableSet.AddressSet) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#273-282) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#277-279)
EnumerableSet.values(EnumerableSet.UintSet) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#346-355) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#350-352)
Do not use evm assembly.

Additional information: link

Different versions of Solidity is used:
- Version used: ['^0.8.0', '^0.8.4']
- ^0.8.0 (@openzeppelin/contracts/access/AccessControl.sol#3)
- ^0.8.0 (@openzeppelin/contracts/access/AccessControlEnumerable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/access/IAccessControl.sol#3)
- ^0.8.0 (@openzeppelin/contracts/access/IAccessControlEnumerable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/security/Pausable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Pausable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/Counters.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/Strings.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/introspection/ERC165.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/introspection/IERC165.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/math/Math.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/math/SafeCast.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#3)
- ^0.8.4 (contracts/FinaToken.sol#2)
Use one Solidity version.

Additional information: link

AccessControl._setRoleAdmin(bytes32,bytes32) (@openzeppelin/contracts/access/AccessControl.sol#191-195) is never used and should be removed
Context._msgData() (@openzeppelin/contracts/utils/Context.sol#20-22) is never used and should be removed
Counters.decrement(Counters.Counter) (@openzeppelin/contracts/utils/Counters.sol#31-37) is never used and should be removed
Counters.reset(Counters.Counter) (@openzeppelin/contracts/utils/Counters.sol#39-41) is never used and should be removed
ECDSA.recover(bytes32,bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#99-103) is never used and should be removed
ECDSA.recover(bytes32,bytes32,bytes32) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#131-139) is never used and should be removed
ECDSA.toEthSignedMessageHash(bytes32) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#201-205) is never used and should be removed
ECDSA.tryRecover(bytes32,bytes) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#54-83) is never used and should be removed
ECDSA.tryRecover(bytes32,bytes32,bytes32) (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#112-124) is never used and should be removed
ERC20Votes._add(uint256,uint256) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#252-254) is never used and should be removed
ERC20Votes._subtract(uint256,uint256) (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#256-258) is never used and should be removed
EnumerableSet._values(EnumerableSet.Set) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#141-143) is never used and should be removed
EnumerableSet.add(EnumerableSet.Bytes32Set,bytes32) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#157-159) is never used and should be removed
EnumerableSet.add(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#296-298) is never used and should be removed
EnumerableSet.at(EnumerableSet.Bytes32Set,uint256) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#195-197) is never used and should be removed
EnumerableSet.at(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#334-336) is never used and should be removed
EnumerableSet.contains(EnumerableSet.AddressSet,address) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#240-242) is never used and should be removed
EnumerableSet.contains(EnumerableSet.Bytes32Set,bytes32) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#174-176) is never used and should be removed
EnumerableSet.contains(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#313-315) is never used and should be removed
EnumerableSet.length(EnumerableSet.Bytes32Set) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#181-183) is never used and should be removed
EnumerableSet.length(EnumerableSet.UintSet) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#320-322) is never used and should be removed
EnumerableSet.remove(EnumerableSet.Bytes32Set,bytes32) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#167-169) is never used and should be removed
EnumerableSet.remove(EnumerableSet.UintSet,uint256) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#306-308) is never used and should be removed
EnumerableSet.values(EnumerableSet.AddressSet) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#273-282) is never used and should be removed
EnumerableSet.values(EnumerableSet.Bytes32Set) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#207-209) is never used and should be removed
EnumerableSet.values(EnumerableSet.UintSet) (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#346-355) is never used and should be removed
Math.ceilDiv(uint256,uint256) (@openzeppelin/contracts/utils/math/Math.sol#38-41) is never used and should be removed
Math.max(uint256,uint256) (@openzeppelin/contracts/utils/math/Math.sol#12-14) is never used and should be removed
Math.min(uint256,uint256) (@openzeppelin/contracts/utils/math/Math.sol#19-21) is never used and should be removed
SafeCast.toInt128(int256) (@openzeppelin/contracts/utils/math/SafeCast.sol#151-154) is never used and should be removed
SafeCast.toInt16(int256) (@openzeppelin/contracts/utils/math/SafeCast.sol#205-208) is never used and should be removed
SafeCast.toInt256(uint256) (@openzeppelin/contracts/utils/math/SafeCast.sol#235-239) is never used and should be removed
SafeCast.toInt32(int256) (@openzeppelin/contracts/utils/math/SafeCast.sol#187-190) is never used and should be removed
SafeCast.toInt64(int256) (@openzeppelin/contracts/utils/math/SafeCast.sol#169-172) is never used and should be removed
SafeCast.toInt8(int256) (@openzeppelin/contracts/utils/math/SafeCast.sol#223-226) is never used and should be removed
SafeCast.toUint128(uint256) (@openzeppelin/contracts/utils/math/SafeCast.sol#46-49) is never used and should be removed
SafeCast.toUint16(uint256) (@openzeppelin/contracts/utils/math/SafeCast.sol#106-109) is never used and should be removed
SafeCast.toUint256(int256) (@openzeppelin/contracts/utils/math/SafeCast.sol#133-136) is never used and should be removed
SafeCast.toUint64(uint256) (@openzeppelin/contracts/utils/math/SafeCast.sol#76-79) is never used and should be removed
SafeCast.toUint8(uint256) (@openzeppelin/contracts/utils/math/SafeCast.sol#121-124) is never used and should be removed
SafeCast.toUint96(uint256) (@openzeppelin/contracts/utils/math/SafeCast.sol#61-64) is never used and should be removed
Strings.toHexString(uint256) (@openzeppelin/contracts/utils/Strings.sol#39-50) is never used and should be removed
Strings.toString(uint256) (@openzeppelin/contracts/utils/Strings.sol#14-34) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.8.0 (@openzeppelin/contracts/access/AccessControl.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/access/AccessControlEnumerable.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/access/IAccessControl.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/access/IAccessControlEnumerable.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/security/Pausable.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Pausable.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Counters.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Strings.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/cryptography/ECDSA.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/introspection/ERC165.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/introspection/IERC165.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/math/Math.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/math/SafeCast.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/structs/EnumerableSet.sol#3) allows old versions
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 ERC20Permit.DOMAIN_SEPARATOR() (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#72-74) is not in mixedCase
Variable ERC20Permit._PERMIT_TYPEHASH (@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol#27-28) is not in mixedCase
Function IERC20Permit.DOMAIN_SEPARATOR() (@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol#58) is not in mixedCase
Variable EIP712._CACHED_DOMAIN_SEPARATOR (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#30) is not in mixedCase
Variable EIP712._CACHED_CHAIN_ID (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#31) is not in mixedCase
Variable EIP712._HASHED_NAME (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#33) is not in mixedCase
Variable EIP712._HASHED_VERSION (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#34) is not in mixedCase
Variable EIP712._TYPE_HASH (@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol#35) is not in mixedCase
Constant FinaToken.maxSupply (contracts/FinaToken.sol#14) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.

Additional information: link

FinaToken.slitherConstructorConstantVariables() (contracts/FinaToken.sol#9-81) uses literals with too many digits:
- maxSupply = 100000000000000000000000000 (contracts/FinaToken.sol#14)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Holders:


Token is deployed only at one blockchain

No disclosed threats


Unable to find token contract audit


Unable to find audit link on the website


Unable to find whitepaper link on the website


Unable to find token on CoinHunt

Additional information: link


Young tokens have high risks of price dump / death


Young tokens have high risks of price dump / death


Token has relatively low CoinGecko rank

Price for FINA

News for FINA