ETH_Curate_report.md

Summary

This is the report from a security audit performed on Curate by MrCrambo.

The audit focused primarily on the security of Curate smart contract.

In scope

1. https://etherscan.io/address/0x490dbf7884b8e13c2161448b83dd2d8909db48ed#code

Findings

In total, 2 issues were reported including:

• 0 high severity issues.

• 0 medium severity issues.

• 0 owner privilegies issues.

• 2 low severity issues.

• 0 notes.

Security issues

1. Zero address checking

Severity: low

Description

In functions transfer and transferFrom there is no zero address checking. And function totalSupply will show wrong balance without zero address balance.

Recommendation

Add zero address checking

require(to != address(0));

2. Known vulnerabilities of ERC-20 token

Severity: low

Description

It is possible to double withdrawal attack. More details here

Recommendation

Add increaseApproval and decreaseApproval functions

Conclusion

Smart contract is safe.