Mobile Application Penetration Testing
Mobile application penetration testing is an authorized security assessment of an Android or iOS app, its behavior on a device, and the backend services it uses. You examine the app without running it and while it runs to find weaknesses, prove impact safely, and give developers evidence they can fix.
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Intro
Mobile Application Penetration Testing
A mobile application penetration test is an authorized assessment of an app, its device-side behavior, and the services it trusts. You inspect the distributed package and observe the running app. You then connect weaknesses to realistic impact without exceeding the agreed boundary.
Keep one mental model in mind: the app package is evidence, the running app is evidence, and the backend remains the authority.
Mobile testing is not web testing on a smaller screen. A mobile app stores code and data on a device that the user controls. It interacts with operating-system security boundaries, other apps, local storage, sensors, deep links, and remote application programming interfaces. Android and iOS protect apps with sandboxing, signing, permissions, and platform security services. Those controls shape the test, but they do not prove that an individual app uses the platform safely.
Begin with authorization
Only test an app and its supporting systems when the owner has authorized the work in writing. Record the package identifiers, app versions, build types, backend environments, test accounts, dates, permitted techniques, evidence rules, and stop conditions.
Separate three boundaries:
- App boundary — the Android package or iOS app, its code, resources, configuration, and local data.
- Platform boundary — the operating-system features the app uses, including storage, permissions, interprocess communication, key storage, and web views.
- Service boundary — the remote APIs, identity services, content hosts, and third-party services reached by the app.
An app authorization does not automatically authorize every server, third-party software development kit, or account it can reach. Confirm ownership before active testing. Stop when you reach another user’s data, an unapproved service, unexpected availability impact, or evidence of an unrelated compromise.
Turn requirements into test objectives
The OWASP Mobile Application Security Verification Standard, or MASVS, groups mobile security controls by storage, cryptography, authentication, network communication, platform interaction, code quality, resilience, and privacy. Use those groups to organize objectives and coverage.
The OWASP Mobile Application Security Testing Guide, or MASTG, provides knowledge, techniques, tools, demos, apps, and test cases for verifying those controls. MASVS describes the security outcome. MASTG helps you examine whether the app achieves it.
Neither document replaces engagement-specific risk. A banking app, a workforce authenticator, and a public news app expose different data and business actions. Start with what the app protects, who might attack it, and which outcomes matter. Then select relevant controls and tests.
Create a traceable line:
business asset → threat → MASVS control → test procedure → evidence → finding
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Sources
- https://mas.owasp.org/MASVS/02-Frontispiece/
Supports
- MASVS as a mobile application security standard
- Control coverage for storage, cryptography, authentication, network communication, platform interaction, code quality, resilience, and privacy
- Use across Android, iOS, and different deployment scenarios
- https://mas.owasp.org/MASVS/03-Using_the_MASVS/
Supports
- Using MASVS controls to establish security requirements and verification objectives
- Adapting control selection to risk and application context
- https://mas.owasp.org/MASTG/
Supports
- MASTG as a manual for mobile security testing and reverse engineering
- MASTG knowledge, tests, techniques, demos, tools, and reference apps
- Relationship between MASTG tests, MASVS controls, and mobile weaknesses
- https://mas.owasp.org/MASTG/0x04b-Mobile-App-Security-Testing/
Supports
- Mobile security testing as static and dynamic analysis
- Agreement on scope and security requirements
- Dynamic evaluation of platform behavior, backend services, and APIs
- Context limits and false positives in automated scanning
- https://mas.owasp.org/MASTG/0x05b-Android-Security-Testing/
Supports
- Android test-environment components including Android Studio, platform tools, emulator, and test device
- Privileged Android test-device considerations
- Android-specific testing processes and techniques
- https://mas.owasp.org/MASTG/techniques/android/MASTG-TECH-0014/
Supports
- Static analysis as examination without executing the application
- Inspection of Android manifest and source artifacts
- Static analysis as one technique for identifying potential vulnerabilities and errors
- https://mas.owasp.org/MASTG/techniques/generic/MASTG-TECH-0049/
Supports
- Dynamic analysis as evaluation of the running app and workflows
- Runtime discovery of storage, business logic, input, and environment behavior
- Automated assistance without replacement of manual assessment
- https://mas.owasp.org/MASTG/tools/
Supports
- Tools for static analysis, dynamic analysis, network interception, and other techniques
- Tool results as assistance rather than conclusive app-security status
- Possibility of false positives, false negatives, and environment-specific compatibility
- https://mas.owasp.org/MASTG/apps/
Supports
- Reference applications for Android and iOS security practice
- Maintained MASTG apps and crackmes as training material
- https://mas.owasp.org/MASVS/07-MASVS-AUTH/
Supports
- Authentication and authorization controls
- Secure access to remote endpoints
- Additional authentication for sensitive operations
- https://mas.owasp.org/MASVS/08-MASVS-NETWORK/
Supports
- Secure network traffic and endpoint identity requirements
- Certificate or public-key pinning as a defense-in-depth control for selected endpoints
- https://mas.owasp.org/MASVS/09-MASVS-PLATFORM/
Supports
- Secure use of platform interaction and interprocess communication
- Secure handling of web views and user-interface data exposure
- https://mas.owasp.org/MASVS/11-MASVS-RESILIENCE/
Supports
- Resilience against reverse engineering and tampering
- Obfuscation, anti-debugging, integrity, and runtime-environment controls
- https://developer.android.com/privacy-and-security/security-best-practices
Supports
- Android guidance for secure communication, app interaction, storage, permissions, and dependencies
- Use of non-exported components and controlled inter-app communication
- Platform facilities for authentication and sensitive operations
- https://developer.android.com/privacy-and-security/security-tips
Supports
- Android application sandbox and permission model
- Private internal storage behavior
- Risks from sensitive logs, overbroad data collection, and permissive interprocess communication
- https://support.apple.com/guide/security/app-security-overview-sec35dd877d0/web
Supports
- Apple app signing, distribution, and platform protection model
- Sandboxing as protection against unauthorized access to user data
- Layered app-security controls and their role in system integrity
- https://support.apple.com/en-lamr/guide/security/secf49cad4db/web
Supports
- Runtime code-signature enforcement
- iOS and iPadOS measures intended to prevent one app from compromising other apps or the system
- https://github.com/sindresorhus/awesome
Supports
- Discovery of the Android Security list under the catalog's Security section
- https://github.com/ashishb/android-security-awesome
Supports
- Discovery of MobSF, Frida, JADX, Apktool, and mitmproxy as Android security tools
- Curated descriptions of mobile analysis, reverse-engineering, and traffic tools
- https://mobsf.github.io/docs/
Supports
- MobSF as an automated mobile penetration-testing and assessment framework
- Static and dynamic analysis support for Android and iOS
- https://frida.re/docs/home/
Supports
- Frida as a dynamic code instrumentation toolkit
- Injection and tracing across Android and iOS native apps
- Android and iOS tutorials and examples
- https://github.com/skylot/jadx
Supports
- JADX command-line and graphical tools for decompiling Android Dex and package files
- Manifest and resource decoding
- Warning that complete and correct decompilation is not guaranteed
- https://apktool.org/
Supports
- Apktool disassembly of Android resources and manifests
- Authorized package rebuilding and resource inspection
- https://docs.mitmproxy.org/stable/
Supports
- mitmproxy as an interactive intercepting proxy
- Inspection, modification, replay, and scripting of network flows