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 Revolut App APK view it on Malcore.
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Branch
High severity warnings from code analysis
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.
The App uses an insecure Random Number Generator.
Files may contain hardcoded sensitive information like usernames, passwords, keys etc.
App creates temp file. Sensitive information should never be written into a temp file.
App can read/write to External Storage. Any App can read data written to External Storage.
This App has capabilities to prevent against Screenshots from Recent Task History/ Now On Tap etc.
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: 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: BLUETOOTH_ADMIN
Description: Allows an application to configure the local Bluetooth phone and to discover and pair with remote devices.
Name: NFC
Description: Allows an application to communicate with Near-Field Communication (NFC) tags, cards and readers.
Name: WRITE_CONTACTS
Description: Allows an application to modify the contact (address) data stored on your phone. Malicious applications can use this to erase or modify your contact data.
Name: ACCESS_NETWORK_STATE
Description: Allows an application to view the status of all networks.
Name: ACCESS_FINE_LOCATION
Description: Access fine location sources, such as the Global Positioning System on the phone, where available. Malicious applications can use this to determine where you are and may consume additional battery power.
Name: WRITE_EXTERNAL_STORAGE
Description: Allows an application to write to the SD card.
Name: MANAGE_ACCOUNTS
Description: Allows an application to perform operations like adding and removing accounts and deleting their password.
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: 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: WAKE_LOCK
Description: Allows an application to prevent the phone from going to sleep.
Name: CHANGE_WIFI_STATE
Description: Allows an application to connect to and disconnect from Wi-Fi access points and to make changes to configured Wi-Fi networks.
Name: RECORD_AUDIO
Description: Allows application to access the audio record path.
Name: READ_CONTACTS
Description: Allows an application to read all of the contact (address) data stored on your phone. Malicious applications can use this to send your data to other people.
Name: QUERY_ALL_PACKAGES
Description: Allows query of any normal app on the device, regardless of manifest declarations.
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.