SparkStarter Factory Contract Achieves 90/100 Security Score with Comprehensive Assure DeFi Audit
Case Studies
SparkStarter Factory is a sophisticated token generation platform designed to streamline the creation and deployment of ERC-20 tokens with built-in tax mechanisms, liquidity management, and anti-bot protections. The platform enables projects to launch tokens with customizable buy/sell taxes, dynamic wallet limits, and automated liquidity provisioning through integration with decentralized exchanges.
Given the platform's role in deploying financial instruments and managing user funds, SparkStarter engaged Assure DeFi to conduct a comprehensive security assessment. The audit focused on ensuring the integrity of the token generation logic, tax distribution mechanisms, and liquidity management systems that form the foundation of the platform's value proposition.
The project successfully passed the Advanced edition audit with a 90/100 score, demonstrating strong security practices and responsive remediation of identified issues.
The security assessment covered the complete SparkStarter ecosystem, including:
The audit employed both static analysis and manual review methodologies, with comprehensive test coverage including edge cases for tax calculations, liquidity operations, and access control mechanisms. The assessment examined over 30 attack vectors including reentrancy, integer overflow, front-running, and economic model vulnerabilities.
The Assure DeFi security assessment identified 10 total findings across the SparkStarter codebase, demonstrating thorough coverage of potential vulnerabilities:
The development team demonstrated exceptional responsiveness, with 2 high-severity findings fully resolved and 3 high-severity findings acknowledged with documented risk acceptance. The medium-severity findings saw a 50% resolution rate, with one fix implemented and one acknowledged. All findings were addressed through either code changes or formal risk acceptance, resulting in a final audit score of 90/100.
The audit uncovered several critical vulnerabilities that required immediate attention:
The setInternalTaxes function contained a logic error where both buy and sell taxes were incorrectly set using the _buyTaxes array instead of the corresponding _sellTaxes array for sell transactions. This would have caused sell tax rates to follow the buy tax schedule rather than their intended schedule, potentially disrupting the project's tokenomics model.
Resolution: The development team updated the function to correctly reference the _sellTaxes array for sell transactions, ensuring tax schedules operate as designed.
In the convertTaxes function, ETH transfers to various addresses (incubator, platform, tax wallets) used low-level calls without checking the success flag. Failed transfers would be silently ignored, potentially locking ETH in the contract or causing fund misallocation.
Resolution: The team acknowledged this finding with documented risk acceptance, implementing monitoring systems to detect failed transfers.
When the contract minted large quantities of tokens to itself, the convertTaxes function could attempt to swap amounts exceeding available liquidity, causing transaction reverts that would disrupt trading operations.
Resolution: The team acknowledged this risk and implemented pre-swap liquidity checks to prevent excessive swap attempts.
The addLp function used tx.origin as the recipient when minting LP tokens, which is discouraged as it may lead to unintended behavior when transactions originate from another contract.
Resolution: The code was updated to use msg.sender instead of tx.origin, following Solidity best practices.
The constructor lacked upper bounds validation on _buyTaxes and _sellTaxes array values, allowing extremely high tax rates that could discourage participation or disrupt trading.
Resolution: The team acknowledged this finding and implemented administrative controls to prevent excessive tax configuration during deployment.
Assure DeFi conducted a comprehensive Advanced edition audit employing multiple assessment techniques:
The assessment included comprehensive testing of the token generation flow, tax distribution mechanisms, liquidity management, whitelist functionality, and access control systems. Test coverage included both positive and negative test cases to ensure robust error handling.
The SparkStarter development team demonstrated exceptional professionalism and security awareness throughout the audit process. Upon receiving the initial findings report, the team immediately prioritized remediation efforts:
The final assessment resulted in a 90/100 audit score and PASS status, exceeding the 84-point threshold required for approval. This score reflects the project's strong security foundation and the team's commitment to addressing identified vulnerabilities.
The comprehensive test suite developed during the audit provides ongoing regression testing capabilities, ensuring future updates maintain security standards.
SparkStarter Factory's successful audit demonstrates the importance of professional security assessment for token generation platforms and DeFi infrastructure. Whether you're building a token factory, DEX, or other smart contract system, Assure DeFi provides the expertise needed to identify and resolve vulnerabilities before deployment.
Ready to secure your smart contracts? View the full SparkStarter audit dashboard or contact Assure DeFi to start your security audit today.
This case study is based on the publicly available SparkStarter security audit report dated February 22, 2025. All findings discussed have been addressed through either code fixes or documented risk acceptance. This content is for informational purposes only and does not constitute financial or investment advice. Security audits represent a point-in-time assessment and do not guarantee that contracts are entirely free of vulnerabilities. Users should conduct their own due diligence before interacting with any smart contract system.