Audit name:
[SCA] Derivable | ERC6120 | Aug2023
Date:
Dec 2, 2023
Table of Content
Introduction
We express our gratitude to the Derivable team for the collaborative engagement that enabled the execution of this Smart Contract Security Assessment.
Derion is a Perpetual Automated Market Maker (AMM) Protocol that offers infinite liquidity and no liquidation through a continuous compounding position with a novel family of asymptotic power curves.
| title | content |
|---|---|
| Platform | EVM |
| Language | Solidity |
| Tags | ERC1155; ER20; ERC721; DEX |
| Timeline | 07/08/2023 - 04/12/2023 |
| Methodology | https://hackenio.cc/sc_methodology→ |
Review Scope | |
|---|---|
| Repository | https://github.com/derivable-labs/utr→ |
| Commit | a8868c39c2e9f63fe737c02b0c29f7eb4a666dae |
Review Scope
- Repository
- https://github.com/derivable-labs/utr→
- Commit
- a8868c39c2e9f63fe737c02b0c29f7eb4a666dae
Audit Summary
10/10
100%
10/10
7/10
The system users should acknowledge all the risks summed up in the risks section of the report
Document Information
This report may contain confidential information about IT systems and the intellectual property of the Customer, as well as information about potential vulnerabilities and methods of their exploitation.
The report can be disclosed publicly after prior consent by another Party. Any subsequent publication of this report shall be without mandatory consent.
Document | |
|---|---|
| Name | Smart Contract Code Review and Security Analysis Report for Derivable |
| Audited By | Hacken |
| Website | - |
| Changelog | 14/08/2023 - Initial Review |
| 20/09/2023 - Second Review | |
| 04/12/2023 - Third Review |
Document
- Name
- Smart Contract Code Review and Security Analysis Report for Derivable
- Audited By
- Hacken
- Website
- -
- Changelog
- 14/08/2023 - Initial Review
- 20/09/2023 - Second Review
- 04/12/2023 - Third Review
System Overview
The Derivable project Universal Token Router audit consists of the UTR module, which is a Gas optimized implementation of the EIP ERC-6120: Universal Token Router →.
The files in the scope:
UniversalTokenRouter.sol - The Gas optimized implementation of the EIP ERC-6120: Universal Token Router.
IUniversalTokenRouter.sol - The interface for UniversalTokenRouter.sol.
Privileged roles
There are no privileged roles in the UTR module.
Executive Summary
Documentation quality
The total Documentation quality score is 7 out of 10.
Functional requirements are provided.
Technical description is partially provided.
NatSpec comments are provided.
Description of the development environment is missing.
Code quality
The total Code quality score is 10 out of 10.
The development environment is configured.
Test coverage
Code coverage of the project is 100% (branch coverage).
Deployment and basic user interactions are covered with tests.
Security score
Upon auditing, the code was found to contain 0 critical, 0 high, 4 medium, and 0 low severity issues. Out of these, 4 issues have been addressed and resolved, leading to a Security score of 10 out of 10.
All identified issues are detailed in the “Findings” section of this report.
Summary
The comprehensive audit of the customer's smart contract yields an overall score of 9.7. This score reflects the combined evaluation of documentation, code quality, test coverage, and security aspects of the project.
Risks
There are no additional risks.
Findings
Code ― | Title | Status | Severity | |
|---|---|---|---|---|
| F-2023-0629 | Undocumented Behavior | fixed | Medium | |
| F-2023-0628 | Undocumented Behavior | fixed | Medium | |
| F-2023-0627 | Unfinalized Code | fixed | Medium | |
| F-2023-0626 | Undocumented Logic | fixed | Medium | |
| I-2023-0136 | Non-Explicit Unit Size | fixed | Observation | |
| I-2023-0135 | Floating Pragma | fixed | Observation | |
| I-2023-0134 | Solidity Style Guide Violation | fixed | Observation |
Appendix 1. Severity Definitions
When auditing smart contracts, Hacken is using a risk-based approach that considers Likelihood, Impact, Exploitability and Complexity metrics to evaluate findings and score severities.
Reference on how risk scoring is done is available through the repository in our Github organization:
Severity | Description |
|---|---|
Critical | Critical vulnerabilities are usually straightforward to exploit and can lead to the loss of user funds or contract state manipulation. |
High | High vulnerabilities are usually harder to exploit, requiring specific conditions, or have a more limited scope, but can still lead to the loss of user funds or contract state manipulation. |
Medium | Medium vulnerabilities are usually limited to state manipulations and, in most cases, cannot lead to asset loss. Contradictions and requirements violations. Major deviations from best practices are also in this category. |
Low | Major deviations from best practices or major Gas inefficiency. These issues will not have a significant impact on code execution, do not affect security score but can affect code quality score. |
Severity
- Critical
Description
- Critical vulnerabilities are usually straightforward to exploit and can lead to the loss of user funds or contract state manipulation.
Severity
- High
Description
- High vulnerabilities are usually harder to exploit, requiring specific conditions, or have a more limited scope, but can still lead to the loss of user funds or contract state manipulation.
Severity
- Medium
Description
- Medium vulnerabilities are usually limited to state manipulations and, in most cases, cannot lead to asset loss. Contradictions and requirements violations. Major deviations from best practices are also in this category.
Severity
- Low
Description
- Major deviations from best practices or major Gas inefficiency. These issues will not have a significant impact on code execution, do not affect security score but can affect code quality score.
Appendix 2. Scope
The scope of the project includes the following smart contracts from the provided repository:
Scope Details | |
|---|---|
| Repository | https://github.com/derivable-labs/utr→ |
| Commit | a8868c39c2e9f63fe737c02b0c29f7eb4a666dae |
| Whitepaper | Not provided |
| Requirements | Provided→ |
| Technical Requirements | Provided→ |
Scope Details
- Repository
- https://github.com/derivable-labs/utr→
- Commit
- a8868c39c2e9f63fe737c02b0c29f7eb4a666dae
- Whitepaper
- Not provided
- Requirements
- Provided→
- Technical Requirements
- Provided→