Nexo Token (NEXO) security audit, conducted by the Callisto Network Security Department in June 2019.

 

Nexo (NEXO) Specificities

 

 

 

Audit Request

Audit Top 200 CoinMarketCap tokens.

Symbol      : NEXO
Name        : NEXO

Nexo is the most advanced and trusted instant crypto lending provider on a global scale, servicing 40+ currencies across more than 200 jurisdictions.

https://nexo.io/

Source Code:

https://github.com/nexofinance/NEXO-Token/blob/master/contracts/NexoToken.sol

Disclosure polic:

info@nexo.io

Platform:

ETH.

Number of lines:

164.

 

Nexo Token (NEXO) Smart Contract Security Audit Report

Are Your Funds Safe?

 

1. In scope

Сommit hash 3571169b3365adfc92c5bd743cc75b5184a2172a.

2. Findings

In total, 3 issues were reported including:

  • 1 low severity issues.

  • 1 note.

  • 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 vulnerabilities of ERC-20 token

Severity: low.

Description:

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

2.2. Owner privileges

Severity: owner privileges.

Description:

Owner allows himself to call transferFrom function from investors, community and advisers address, so there is risk to investors, that owner will transfer this tokens to another address.

Code snippet:

2.3. Address is not correct

Severity: note.

Description:

Don’t forget to change addresses before deploy contract.

Code snippet:

3. Conclusion

The audited smart contract can be deployed. Only low severity issues were found during the audit.

4. Revealing audit reports

Appendix

Smart Contract Audits by Callisto Network.

Miscellaneous

Why Audit Smart Contracts?

Our Most Popular Audit Reports.

Trust the Blockchain, Audit the Smart Contracts.

Follow Callisto’s Security Department on Twitter to get our latest news and updates!