Port MASTG-TEST-0003 (by @guardsquare)

tests-beta/android/MASVS-STORAGE/MASTG-TEST-0203.md

@@ -1,6 +1,6 @@
 ---
 platform: android
-title: Leakage of Sensitive Data via Logging APIs
+title: Runtime Use of Logging APIs
 id: MASTG-TEST-0203
 apis: [Log, Logger, System.out.print, System.err.print, java.lang.Throwable#printStackTrace]
 type: [dynamic]

tests-beta/android/MASVS-STORAGE/MASTG-TEST-0231.md

@@ -0,0 +1,45 @@
+---
+platform: android
+title: References to Logging APIs
+id: MASTG-TEST-0231
+apis: [Log, Logger, System.out.print, System.err.print, java.lang.Throwable#printStackTrace, android.util.Log]
+type: [static]
+weakness: MASWE-0001
+---
+
+## Overview
+
+This test verifies if an app uses logging APIs like `android.util.Log`, `Log`, `Logger`, `System.out.print`, `System.err.print`, and `java.lang.Throwable#printStackTrace`.
+
+## Steps
+
+1. Use either @MASTG-TECH-0014 with a tool such as @MASTG-TOOL-0110 to identify all logging APIs.
+
+## Observation
+
+The output should contain a list of locations where logging APIs are used.
+
+## Evaluation
+
+The test fails if an app logs sensitive information from any of the listed locations. Ideally, a release build shouldn't use any logging functions, making it easier to assess sensitive data exposure.
+
+## Mitigation
+
+While preparing the production release, you can use tools like @MASTG-TOOL-0022 (included in Android Studio). To determine whether all logging functions from the `android.util.Log` class have been removed, check the ProGuard configuration file (proguard-rules.pro) for the following options (according to this [example of removing logging code](https://www.guardsquare.com/en/products/proguard/manual/examples#logging "ProGuard\'s example of removing logging code") and this article about [enabling ProGuard in an Android Studio project](https://developer.android.com/studio/build/shrink-code#enable "Android Developer - Enable shrinking, obfuscation, and optimization")):
+
+```default
+-assumenosideeffects class android.util.Log
+{
+  public static boolean isLoggable(java.lang.String, int);
+  public static int v(...);
+  public static int i(...);
+  public static int w(...);
+  public static int d(...);
+  public static int e(...);
+  public static int wtf(...);
+}
+```
+
+Note that the example above only ensures that calls to the Log class' methods will be removed. If the string that will be logged is dynamically constructed, the code that constructs the string may remain in the bytecode.
+
+Alternatively, you can implement a custom logging facility and disable it at once only for the release builds.

tests/android/MASVS-STORAGE/MASTG-TEST-0003.md

@@ -8,6 +8,8 @@ title: Testing Logs for Sensitive Data
 masvs_v1_levels:
 - L1
 - L2
+status: deprecated
+covered_by: [MASTG-TEST-0203, MASTG-TEST-0231]
 ---
 
 ## Overview