Insights
This blog has been taken from Malcore’s analysis results. The points below are not an exhaustive list. For a full view of Malcore’s static analysis of the Reddit App APK view it on Malcore.
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Discovered Trackers
OpenTelemetry (OpenCensus, OpenTracing)
Google Firebase Analytics
Google Tag Manager
Branch
Google CrashLytics
Instabug
High severity warnings from code analysis
Files may contain hardcoded sensitive information like usernames, passwords, keys etc
App uses SQLite Database and execute raw SQL query. Untrusted user input in raw SQL queries can cause SQL Injection. Also sensitive information should be encrypted and written to the database.
Insecure Implementation of SSL. Trusting all the certificates or accepting self signed certificates is a critical Security Hole. This application is vulnerable to MITM attacks.
App can read/write to External Storage. Any App can read data written to External Storage.
The App uses an insecure Random Number Generator.
This App has capabilities to prevent against Screenshots from Recent Task History/ Now On Tap etc.
App creates temp file. Sensitive information should never be written into a temp file.
This App download files using Android Download Manager.
Suspicious severity warnings from code analysis
Application attempts to discover build version of device.
Dangerous Labelled permissions from Android
Android Dangerous labelled permissions as Dangerous from this library https://developer.android.com/reference/android/Manifest.permission.
Name: WRITE_SETTINGS
Description: Allows an application to modify the system's settings data. Malicious applications can corrupt your system's configuration.
Name: USE_CREDENTIALS
Description: Allows an application to request authentication tokens.
Name: ACCESS_COARSE_LOCATION
Description: Access coarse location sources, such as the mobile network database, to determine an approximate phone location, where available. Malicious applications can use this to determine approximately where you are.
Name: BLUETOOTH
Description: Allows an application to view configuration of the local Bluetooth phone and to make and accept connections with paired devices.
Name: CAMERA
Description: Allows application to take pictures and videos with the camera. This allows the application to collect images that the camera is seeing at any time.
Name: MANAGE_ACCOUNTS
Description: Allows an application to perform operations like adding and removing accounts and deleting their password.
Name: READ_SETTINGS
Description: Allows applications to read the global setting of the device it is running on.
Name: ACCESS_NETWORK_STATE
Description: Allows an application to view the status of all networks.
Name: READ_SETTINGS
Description: Allows applications to read the global setting of the device it is running on.
Name: WRITE_EXTERNAL_STORAGE
Description: Allows an application to write to the SD card.
Name: READ_EXTERNAL_STORAGE
Description: Allows an application to read from SD Card.
Name: WRITE_SYNC_SETTINGS
Description: Allows an application to modify the sync settings, such as whether sync is enabled for Contacts.
Name: AUTHENTICATE_ACCOUNTS
Description: Allows an application to use the account authenticator capabilities of the Account Manager, including creating accounts as well as obtaining and setting their passwords.
Name: WAKE_LOCK
Description: Allows an application to prevent the phone from going to sleep.
Name: RECORD_AUDIO
Description: Allows application to access the audio record path.
Name: MODIFY_AUDIO_SETTINGS
Description: Allows application to modify global audio settings, such as volume and routing.
To view how these results compare within industry see our analysis:
To view how these scores are created visit our transparency post where we published a description of our phone application threat scoring algorithm.