CWE Code: 310
Vulnerability Type: privilege_escalation
CVSS Score: 7.2
CWE Name:  Cryptographic Issues
Summary: an issue was discovered on blu r1 hd devices with shanghai adups software. the content provider named com.adups.fota.sysoper.provider.infoprovider in the app with a package name of com.adups.fota.sysoper allows any app on the device to read, write, and delete files as the system user. in the com.adups.fota.sysoper app's androidmanifest.xml file, it sets the android:shareduserid attribute to a value of android.uid.system which makes it execute as the system user, which is a very privileged user on the device. this allows a third-party app to read, write, and delete files owned by the system user. the third-party app can modify the /data/system/users/0/settings_secure.xml file to add an app as a notification listener to be able to receive the text of notifications as they are received on the device. this also allows the /data/system/users/0/accounts.db to be read which contains authentication tokens for various accounts on the device. the third-party app can obtain privileged information and also modify files to obtain more privileges on the device.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: LOCAL
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2017-01-13
Last Modified Date: 2017-03-16