The Asus ZenFone 5 Selfie Android device with a build fingerprint of asus/WW_Phone/ASUS_X017D_1:7.1.1/NMF26F/14.0400.1810.061-20181107: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 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 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 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 Haier G8 Android device with a build fingerprint of Haier/HM-G559-FL/G8:8.1.0/O11019/1522294799:user/release-keys contains a pre-installed app with a package name of com.qiku.service.container app (versionCode=5, versionName=1.03.00_VER_32525983298984) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Haier A6 Android device with a build fingerprint of Haier/A6/A6:8.1.0/O11019/1534219877:userdebug/release-keys contains a pre-installed platform app with a package name of com.lovelyfont.defcontainer (versionCode=7, versionName=7.1.13). This app contains an exported service named com.lovelyfont.manager.FontCoverService that allows any app co-located on the device to supply arbitrary commands to be executed as the system user. This app cannot be disabled by the user and the attack can be performed by a zero-permission app. In addition to the local attack surface, its accompanying app with a package name of com.ekesoo.lovelyhifonts makes network requests using HTTP and an attacker can perform a Man-in-the-Middle (MITM) attack on the connection to inject a command in a network response that will be executed as the system user by the com.lovelyfont.defcontainer app. Executing commands as the system user can allow a third-party app to video record the user's screen, factory reset the device, obtain the user's notifications, read the logcat logs, inject events in the Graphical User Interface (GUI), and obtains the user's text messages, and more. Executing commands as the system user can allow a third-party app to factory reset the device, obtain the user's notifications, read the logcat logs, inject events in the GUI, change the default Input Method Editor (IME) (e.g., keyboard) with one contained within the attacking app that contains keylogging functionality, and obtains the user's text messages, and more.

The Coolpad 1851 Android device with a build fingerprint of Coolpad/android/android:8.1.0/O11019/1534834761:userdebug/release-keys contains a pre-installed platform app with a package name of com.lovelyfont.defcontainer (versionCode=7, versionName=7.1.13). This app contains an exported service named com.lovelyfont.manager.FontCoverService that allows any app co-located on the device to supply arbitrary commands to be executed as the system user. This app cannot be disabled by the user and the attack can be performed by a zero-permission app. In addition to the local attack surface, its accompanying app with a package name of com.ekesoo.lovelyhifonts makes network requests using HTTP and an attacker can perform a Man-in-the-Middle (MITM) attack on the connection to inject a command in a network response that will be executed as the system user by the com.lovelyfont.defcontainer app. Executing commands as the system user can allow a third-party app to video record the user's screen, factory reset the device, obtain the user's notifications, read the logcat logs, inject events in the Graphical User Interface (GUI), and obtains the user's text messages, and more. Executing commands as the system user can allow a third-party app to factory reset the device, obtain the user's notifications, read the logcat logs, inject events in the GUI, change the default Input Method Editor (IME) (e.g., keyboard) with one contained within the attacking app that contains keylogging functionality, and obtains the user's text messages, and more.

The Archos Core 101 Android device with a build fingerprint of archos/MTKAC101CR3G_ARCHOS/ac101cr3g:7.0/NRD90M/20180611.034442:user/release-keys contains a pre-installed app with a package name of com.roco.autogen app (versionCode=1, versionName=1) that allows any app co-located on the device to programmatically disable and enable Wi-Fi without the corresponding access permission through an exported interface.

The Lava Z60s Android device with a build fingerprint of LAVA/Z60s/Z60s:8.1.0/O11019/1530331229:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Infinix Note 5 Android device with a build fingerprint of Infinix/H633B/Infinix-X604_sprout:8.1.0/O11019/L-IN-180206V64:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Elephone A4 Android device with a build fingerprint of Elephone/A4/A4:8.1.0/O11019/20180530.143559:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Allview X5 Android device with a build fingerprint of ALLVIEW/X5_Soul_Mini/X5_Soul_Mini:8.1.0/O11019/1522468763:userdebug/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Cubot Nova Android device with a build fingerprint of CUBOT/CUBOT_NOVA/CUBOT_NOVA:8.1.0/O11019/1527060122:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The BQ 5515L Android device with a build fingerprint of BQru/BQru-5515L/BQru-5515L:8.1.0/O11019/20180409.195525:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Fly Photo Pro Android device with a build fingerprint of Fly/PhotoPro/Photo_Pro:8.1.0/O11019/1528117003:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Walton Primo G3 Android device with a build fingerprint of WALTON/Primo_GM3/Primo_GM3:8.1.0/O11019/1522737198:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Panasonic Eluga Ray 600 Android device with a build fingerprint of Panasonic/ELUGA_Ray_600/ELUGA_Ray_600:8.1.0/O11019/1532692680:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Cherry Flare S7 Android device with a build fingerprint of Cherry_Mobile/Flare_S7_Deluxe/Flare_S7_Deluxe:8.1.0/O11019/1533920920:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Panasonic Eluga Ray 530 Android device with a build fingerprint of Panasonic/ELUGA_Ray_530/ELUGA_Ray_530:8.1.0/O11019/1531828974:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.

The Haier G8 Android device with a build fingerprint of Haier/HM-G559-FL/G8:8.1.0/O11019/1522294799:user/release-keys contains a pre-installed app with a package name of com.mediatek.wfo.impl app (versionCode=27, versionName=8.1.0) that allows any app co-located on the device to modify a system property through an exported interface without proper authorization.