Is ARK Safe? Smart Contract Security Analysis

Security Checklist

3/5 checks passed

Contract VerifiedPass

Ownership RenouncedFail

No Mint FunctionFail

Liquidity LockedPass

Not a ProxyPass

Audit History

2 audits on record

Jul 2337Jul 2333

Every audit run adds a dated snapshot — history is append-only and cannot be edited.

Audit Summary

This audit covers a truncated Solidity source code snippet, identified as OpenZeppelin's AccessControl contract. The provided code implements a standard role-based access control mechanism. While the core OpenZeppelin implementation is robust and well-audited, the audit scope is limited by the incomplete source. The primary risks identified are related to the governance implications of the powerful DEFAULT_ADMIN_ROLE and general best practices for critical operations in systems utilizing such access control.

Final Recommendation: For any system built upon this AccessControl contract, it is paramount to secure the `DEFAULT_ADMIN_ROLE` using a robust multi-signature wallet. Additionally, consider implementing time-locks for critical operations, especially those involving role changes for sensitive functions, to provide a window for review and potential intervention. Finally, evaluate the need for an emergency pause mechanism in the overall protocol design to mitigate unforeseen risks.

Category Ratings

TechnicalLow

8/10

The contract utilizes OpenZeppelin's `AccessControl` module, which is a well-audited and widely adopted standard for implementing role-based access control (7.2 Code Security). This provides a robust and secure foundation for managing permissions within the protocol. The implementation correctl

GovernanceMedium

5/10

The `AccessControl` pattern inherently introduces governance considerations, particularly concerning the `DEFAULT_ADMIN_ROLE` (7.5 Governance). This role possesses the power to grant and revoke any other role, including itself, making it a critical point of control. If this role is controlled by a s

UpgradesMedium

4/10

The provided contract is a standard `AccessControl` implementation and is not designed to be upgradeable (7.7 Upgrades). There are no proxy patterns (e.g., UUPS, Transparent) or upgrade-specific logic present in the code. This means the contract's logic is immutable once deployed, eliminating r

LP Distribution

LP Burned100.0% · ≈ permanent lock

LP Locked100.0% · Null Address

What Raised This Score

4 factors

Ownership NOT renounced (admin/mint authority retained)
Mintable supply — no cap found, dilution unbounded
Top-10 concentration > 30% (98.5% total → 39.8% effective; 0.6% in EOAs, 98.0% in contracts — moderate)
2 Low finding(s) from audit

Each factor is an on-chain fact recorded at the time of this analysis. The score is computed from them by a deterministic function, so the same contract returns the same score for anyone who runs the audit. How scores are computed

Security Findings

4 total

2 Low 2 Info

L-01LowUnresolved

Lack of Time-Locks for Critical Role Changes

While `AccessControl` provides a robust mechanism for managing roles, it does not inherently include time-lock functionality for critical operations such as granting or revoking sensitive roles. For roles that control significant protocol parameters, funds, or upgradeability, immediate changes could be exploited if an admin key is compromised or a malicious actor gains control.

Recommendation: For any roles that have the ability to perform critical operations (e.g., modifying protocol fees, pausing contracts, or upgrading logic), consider implementing a time-lock mechanism on top of the `grantRole` and `revokeRole` functions. This would introduce a delay before changes take effect, allowing for community scrutiny or emergency intervention.

L-02LowUnresolved

Absence of Emergency Pause Functionality

The `AccessControl` contract itself does not include an emergency pause mechanism. In complex DeFi protocols, the ability to pause certain functionalities (e.g., deposits, withdrawals, trading) can be crucial to mitigate damage during an exploit, critical bug discovery, or market instability. Without such a mechanism, the protocol may be vulnerable to ongoing attacks or irreversible losses.

Recommendation: Consider integrating an emergency pause mechanism (e.g., OpenZeppelin's `Pausable` module) into the contracts that inherit `AccessControl` and manage critical protocol operations. This pause functionality should be controlled by a specific, highly secured role (e.g., a multi-sig wallet) to prevent abuse.

I-01InformationalUnresolved

Centralization Risk of DEFAULT_ADMIN_ROLE

The `DEFAULT_ADMIN_ROLE` in the `AccessControl` contract holds significant power, as it can grant and revoke any other role, including itself. If this role is controlled by a single external owned account (EOA), it represents a single point of failure and a high centralization risk. A compromise of this EOA could lead to full control over the protocol's access management.

Recommendation: It is strongly recommended that the `DEFAULT_ADMIN_ROLE` be assigned to a robust multi-signature wallet (e.g., Gnosis Safe) requiring multiple approvals for any transaction. This distributes control and significantly reduces the risk of a single point of compromise.

I-02InformationalUnresolved

Incomplete Source Code Provided for Audit

The provided source code snippet is a flattened version of OpenZeppelin's `AccessControl` and its dependencies, but it appears to be truncated. The audit was conducted based solely on the provided code, which may not represent the entire codebase of the 'ARK Protocol' or the specific contract being deployed. This limits the scope of the audit and prevents a comprehensive review of all potential interactions and custom logic.

Recommendation: For a complete security assessment, the full and complete source code of all relevant contracts, including any inheriting contracts or custom logic built on top of `AccessControl`, should be provided. This ensures all potential attack vectors and interactions can be thoroughly analyzed.

Is ARK Safe? ARK