Security Audit Report - VulnerableVault.sol

# Security Audit Report

DeFi Protocol Demo

Contract VulnerableVault.sol
Version 1.0.0
Auditor Fernando Boiero
Organization MIESC Security
Audit Date 2025-12-24
Report ID DEMO-001

## Executive Summary

100
Risk Score
1
Total Findings
1
Critical
0
High
0
Medium
0
Low

### Overall Risk Assessment

CRITICAL RISK

### Key Statistics

Contract | VulnerableVault.sol
Lines of Code | 150
Solidity Version | 0.8.20
Contract Hash (SHA256) | `abc123...`
Analysis Tools Used | 1
Security Layers Analyzed | 1

## Methodology

This security audit was conducted using MIESC v4.2.1 (Multi-layer Intelligent Evaluation for Smart Contracts), a comprehensive security analysis framework implementing a Defense-in-Depth strategy across 9 specialized security layers.

### Findings by Security Layer

Static Analysis (Layer 1)
1 findings

### Findings by Analysis Tool

Slither
1

### Analysis Coverage

Layer | Analysis Type | Description
--- | --- | ---
1 | Static Analysis | AST-based vulnerability detection (Slither, Aderyn)
2 | Pattern Detection | Known vulnerability pattern matching
3 | Symbolic Execution | Path exploration and constraint solving (Mythril)
4 | Fuzzing | Property-based testing (Echidna, Medusa)
5 | Formal Verification | Mathematical correctness proofs (Certora, Halmos)
6 | ML Detection | Graph neural network analysis (DA-GNN)
7 | AI Analysis | LLM-powered semantic analysis (SmartLLM)
8 | DeFi Security | Flash loans, MEV, oracle manipulation
9 | Dependency Security | Supply chain vulnerability scanning

## Detailed Findings

### Critical (1)

Critical Reentrancy in withdraw() VulnerableVault.sol:12

#### Description

External call before state update

SWC: SWC-107

#### Category

Reentrancy | Detected by: Slither (Layer 1)

#### Remediation

Apply CEI pattern

## Disclaimer

This report is provided for informational purposes only and does not constitute legal, financial, or professional advice. The security analysis was performed using automated tools and should be supplemented with manual code review by qualified security professionals.

Smart contract security is an evolving field. This audit represents a point-in-time assessment and does not guarantee the absence of all vulnerabilities. New attack vectors may emerge after this audit.