Holo Token (HOT) security audit, conducted by the Callisto Network Security Department in June 2019.
Holo (HOT) Specificities
Audit Top 200 CoinMarketCap tokens.
Number of lines:
Holo Token (HOT) Smart Contract Security Audit Report
Are Your Funds Safe?
1. In scope
In total, 3 issues were reported including:
2 low severity issues.
1 owner privileges (the ability of an owner to manipulate contract, may be risky for investors).
No critical security issues were found.
2.1. Known Issue of ERC20 Standard
It is possible to double withdrawal attack. More details here.
Add the following code to the
transfer(_to address, ...) function:
require( _to != address(this) );
2.2. Zero address checking
There are no zero address checking in functions
setMinter at line 239,
setDestroyer at line 269 and
mint at line 243.
2.3. Owner privileges
Severity: owner privileges.
Owner can mint any amount of tokens and for a long period of time, because he can not finish minting and can set himself as minter.
The audited smart contract can be deployed. Only low severity issues were found during the audit.
4.Revealing audit reports
Trust the Blockchain, Audit the Smart Contracts.
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