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Viber scores 46.7
Malcore scores Viber 46.7
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 Viber App APK view it on Malcore.
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High severity warnings from code analysis
App can read/write to External Storage. Any App can read data written to External Storage.
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
This App has capabilities to prevent against Screenshots from Recent Task History/ Now On Tap etc.
Files may contain hardcoded sensitive information like usernames, passwords, keys etc.
The App uses an insecure Random Number Generator.
App creates temp file. Sensitive information should never be written into a temp file.
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: CHANGE_NETWORK_STATE Description: Allows an application to change the state of network connectivity.
Name: DISABLE_KEYGUARD Description: Allows an application to disable the key lock and any associated password security. A legitimate example of this is the phone disabling the key lock when receiving an incoming phone call, then re-enabling the key lock when the call is finished.
Name: USE_CREDENTIALS Description: Allows an application to request authentication tokens.
Name: WRITE_SETTINGS Description: Allows an application to modify the system's settings data. Malicious applications can corrupt your system's configuration.
Name: READ_SOCIAL_STREAM Description: Allows an application to read from the user's social stream.
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: BLUETOOTH_ADMIN Description: Allows an application to configure the local Bluetooth phone and to discover and pair with remote devices.
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: 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: GET_TASKS Description: Allows application to retrieve information about currently and recently running tasks. May allow malicious applications to discover private information about other applications.
Name: READ_CALL_LOG Description: Allows an application to read the user's call log.
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: WRITE_SOCIAL_STREAM Description: Allows an application to write (but not read) the user's social stream data.
Name: READ_PHONE_NUMBERS Description: Allows read access to the device's phone number(s).
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: CALL_PHONE Description: Allows the application to call phone numbers without your intervention. Malicious applications may cause unexpected calls on your phone bill. Note that this does not allow the application to call emergency numbers.
Name: READ_PHONE_STATE Description: Allows the application to access the phone features of the device. An application with this permission can determine the phone number and serial number of this phone, whether a call is active, the number that call is connected to and so on.
Name: SYSTEM_ALERT_WINDOW Description: Allows an application to show system-alert windows. Malicious applications can take over the entire screen of the phone.
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: 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: 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.