• Platform: Android
• Weakness: MASWE-0063
• Weakness in the numbering of the MASWE beta: MASWE-0067
• Profiles: R (resilience)
• Type: static, code
• Knowledge: MASTG-KNOW-0028
• Best practices: MASTG-BEST-0008

Overview

The WebView.setWebContentsDebuggingEnabled(true) API enables debugging for all WebViews in the application. This feature can be useful during development, but introduces significant security risks if left enabled in production. When enabled, a connected PC can debug, eavesdrop, or modify communication within any WebView in the application. See the "Android Documentation" for more details.

Note that this flag works independently of the debuggable attribute (ApplicationInfo.FLAG_DEBUGGABLE) in the AndroidManifest.xml (see MASTG-TEST-0226). Even if the app is not marked as debuggable, the WebViews can still be debugged by calling this API.

Steps

1. Use MASTG-TECH-0013 to reverse engineer the app.
2. Use MASTG-TECH-0014 to look for the relevant APIs.

Observation

The output should list:

• All locations where WebView.setWebContentsDebuggingEnabled is called with true at runtime.
• Any references to ApplicationInfo.FLAG_DEBUGGABLE.

Evaluation

The test case fails if WebView.setWebContentsDebuggingEnabled(true) is called unconditionally or in contexts where the ApplicationInfo.FLAG_DEBUGGABLE flag is not checked.

Povezane zadeve

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