Change to proper permissions and clean up race condition

Author: Fuzion24

app/src/main/java/fuzion24/device/vulnerability/vulnerabilities/framework/media/CVE_2015_6602.java

@@ -57,8 +57,8 @@ private String extractBinary(Context context) throws IOException {
         final String extractedBinaryTester = dataDir.getAbsolutePath() + File.separator + getNativeAppName();
         extractAsset(context, "stagefright" + File.separator + getNativeAppName(),
                 extractedBinaryTester);
-        Runtime.getRuntime().exec("chmod 744 " + extractedBinaryTester);
-
+        Process p = Runtime.getRuntime().exec("chmod 700 " + extractedBinaryTester);
+        try { p.waitFor(); } catch (Exception e){}
         return extractedBinaryTester;
     }