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 the user's sent and received text messages and call log. This allows a third-party app to obtain PII from the user without permission to do so.
Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/96852 | vdb entry |
| https://www.kryptowire.com/adups_security_analysis.html | third party advisory technical description |
| https://www.nytimes.com/2016/11/16/us/politics/china-phones-software-security.html | press/media coverage |