The Asus ZenFone 4 Selfie Android device with a build fingerprint of asus/WW_Phone/ASUS_X00LD_1:8.1.0/OPM1.171019.011/15.0400.1809.405-0:user/release-keys contains a pre-installed app with a package name of com.log.logservice app (versionCode=1, versionName=1) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.
The Asus ZenFone 4 Selfie Android device with a build fingerprint of Android/sdm660_64/sdm660_64:8.1.0/OPM1/14.2016.1802.247-20180419:user/release-keys contains a pre-installed app with a package name of com.log.logservice app (versionCode=1, versionName=1) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.
The Asus ZenFone Live Android device with a build fingerprint of asus/WW_Phone/ASUS_X00LD_3:7.1.1/NMF26F/14.0400.1806.203-20180720:user/release-keys contains a pre-installed app with a package name of com.asus.atd.smmitest 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.
The GLCKIo low-level driver in ASUS Aura Sync v1.07.22 and earlier exposes a path to write an arbitrary DWORD to an arbitrary address.