Blockchain Application Security

Appendix HAttack Simulation Testing Report

H.1   Executive Summary

This document presents the results of targeted attack simulation testing conducted during the threat modeling phase of the DeFi dApp security assessment. Each scenario is mapped to known software weaknesses (CWEs) and tested against the current or proposed countermeasures. The objective was to validate how real-world adversaries could exploit these vulnerabilities and to assess the effectiveness of mitigation strategies in practice.

The findings provide evidence-based support for the overall risk scoring methodology and help prioritize areas requiring further control enhancements. Scenarios tested include high-impact threats such as smart contract reentrancy, oracle manipulation, authentication bypass, and middleware-level deserialization attacks, all of which are critical to the integrity and resilience of the platform.

The results confirm that while several high-risk areas are well-addressed through industry best practices, others, particularly in the user interface and external data exposure layers, would benefit from stronger or layered defenses. This analysis supports informed decision-making for ongoing risk reduction, secure development, and incident prevention efforts across the platform.

Attack scenario tested	Exploited weakness (CWE)	Testing results	Countermeasures evaluated	Countermeasures effectiveness
Phishing attack on wallet authentication	CWE-287: improper authentication	Successful account takeover ...