ETH_BlumeToken_audit_report.md

Blume Token audit report.

1. Summary

This document is a security audit report performed by danbogd, where Blume Token has been reviewed.

2. In scope

Сommit hash .

• xxx.sol.

3. Findings

In total, 2 issues were reported including:

• 0 medium severity issues
• 1 low severity issues
• 0 owner privileges (ability of owner to manipulate contract, may be risky for investors).
• 1 notes.

No critical security issues were found.

3.1. Known vulnerabilities of ERC-20 token

Severity: low

Description

1. It is possible to double withdrawal attack. More details here.

2. Lack of transaction handling mechanism issue. WARNING! This is a very common issue and it already caused millions of dollars losses for lots of token users! More details here.

Recommendation

Add into a function transfer(address _to, ... ) following code:

require( _to != address(this) );

3.2. Deprecated method.

Severity: minor

Description

The function () payable { revert(); } was a pattern used to prevent implicit acceptance of ether in Solidity versions older than 0.4.0, but today this is unneeded.

Code snippet

        function () public payable {
        revert();
        }
        

4. Conclusion

The review did not show any critical issues, some of low severity issues were found.