Mobile App Security Assessment Framework - Technical & Engineering Guide
1. Introduction
1.1 Purpose
This guide outlines a structured framework for assessing the security of mobile applications. It provides developers and security analysts with methodologies to identify vulnerabilities and ensure robust app security.
1.2 Scope
The framework is designed for use by security professionals, developers, and QA teams to enhance the security posture of mobile applications on iOS and Android platforms.
1.3 Definitions & Acronyms
|
Acronym |
Definition |
|
APK |
Android Package Kit |
|
iOS |
Operating System for Apple devices |
|
OWASP |
Open Web Application Security Project |
|
API |
Application Programming Interface |
|
SDK |
Software Development Kit |
2. Framework Architecture
The Mobile App Security Assessment Framework includes:
- **Static Analysis**: Examining the application’s code and resources without
execution.
- **Dynamic Analysis**: Assessing app behavior during runtime.
- **API Security Testing**: Evaluating the security of backend services.
- **Reporting**: Documenting identified vulnerabilities and recommendations.
3. Key Features
3.1 Static Analysis
Analyze app binaries (APK/IPA files) for hardcoded credentials, improper permissions, and insecure configurations.
3.2 Dynamic Analysis
Monitor app behavior under various scenarios to identify runtime vulnerabilities like insecure storage and improper session handling.
3.3 API Security Testing
Verify the security of APIs accessed by the app, checking for issues like unauthorized access and data leakage.
4. Implementation Steps
1. **Setup Environment**: Install necessary tools like
MobSF, Burp Suite, and Android Studio.
2. **Static Analysis**: Use tools to decompile and inspect app binaries for
security flaws.
3. **Dynamic Analysis**: Execute the app in a controlled environment (emulators
or real devices) to monitor behavior.
4. **API Testing**: Intercept and analyze API calls using tools like Burp
Suite.
5. **Report Generation**: Document findings and recommendations in structured
formats.
5. Security Considerations
1. Ensure testing is authorized and complies with legal
requirements.
2. Avoid exposing sensitive app or user data during analysis.
3. Maintain strict confidentiality of discovered vulnerabilities.
6. Tools and Technologies
- **Static Analysis Tools**: MobSF, JADX
- **Dynamic Analysis Tools**: Frida, Burp Suite, Android Studio
- **API Testing Tools**: Postman, Burp Suite
- **Reporting Tools**: Dradis, OWASP ZAP
7. Testing and Validation
1. Validate the framework by testing it against known
vulnerable mobile apps (e.g., InsecureBankv2).
2. Assess the accuracy of findings and ensure comprehensive coverage.
3. Compare results with standard benchmarks such as OWASP Mobile Top 10.