Fix race condition with the crash check binary. Where it was chmodded, but ran before it had the proper permissions

Author: Fuzion24

app/app.iml

@@ -90,6 +90,7 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/rs" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/symbols" />
       <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
+      <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
     </content>
     <orderEntry type="jdk" jdkName="Android API 23 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />

app/src/main/java/fuzion24/device/vulnerability/vulnerabilities/framework/media/StageFright.java

@@ -30,8 +30,9 @@ public class StageFright {
         System.loadLibrary("stagefright");
     }
 
-    private static void exec(String blah) throws Exception {
-        Process p = Runtime.getRuntime().exec(blah);
+    private static void exec(String executionCommand) throws Exception {
+        Log.d(TAG, "Running shell command: " + executionCommand);
+        Process p = Runtime.getRuntime().exec(executionCommand);
         p.waitFor();
     }
 
@@ -50,7 +51,6 @@ public static List<VulnerabilityTest> getTests(Context context) {
                     extractedBinaryTester);
             exec("chmod 744 " + extractedBinaryTester);
 
-
             for (final String mediaFile : stagefrightMediaFiles) {
 
                 final String extractedAssetPath = dataDir.getAbsolutePath() + File.separator + mediaFile;

app/src/main/java/fuzion24/device/vulnerability/vulnerabilities/helper/CrashCheck.java

@@ -35,7 +35,14 @@ private static String extractCrashCheckBinary(Context context) throws IOExceptio
         File dataDir = context.getFilesDir();
         String extractedCrashCheck = dataDir.getAbsolutePath() + File.separator + getCrashCheckAppName();
         extractAsset(context, "crashCheck" + File.separator + getCrashCheckAppName(), extractedCrashCheck, false);
-        Runtime.getRuntime().exec("chmod 744 " + extractedCrashCheck);
+        Process p = Runtime.getRuntime().exec("chmod 744 " + extractedCrashCheck);
+
+        try {
+            p.waitFor();
+        }catch(Exception e){
+            //
+        }
+
         return extractedCrashCheck;
     }