Code injection

The Kata M4s Android device with a build fingerprint of alps/full_hct6750_66_n/hct6750_66_n:7.0/NRD90M/1495624556:user/test-keys contains a pre-installed app with a package name of com.mediatek.factorymode app (versionCode=1, versionName=1) that allows unauthorized wireless settings modification via a confused deputy attack. This capability can be accessed by any app co-located on the device.