A note on these insights.
The findings outlined in this blog post were drawn from the condensed results of a Malcore scan. To review the exhaustive findings of Malcore’s static analysis of Grab’s mobile app APK, click the button below.
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Discovered Trackers
Facebook Share
Bolts
AppsFlyer
Google Firebase Analytics
Facebook Analytics
IAB Open Measurement
Facebook Login
Google AdMob
Google CrashLytics
LeanPlum
High severity warnings, from code analysis
Files may contain hardcoded sensitive informations like usernames, passwords, keys etc.
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.
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.
Files may contain hardcoded sensitive informations 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 downloads files using Android Download Manager.
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
This App has capabilities to prevent against Screenshots from Recent Task History/ Now On Tap etc.
Permissions labelled as dangerous, from Android
Permissions which Android has labelled as “dangerous”, according to the library available here.
Name: ACCESS_COARSE_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: BLUETOOTH
Description: Allows an application to view configuration of the local Bluetooth phone and to make and accept connections with paired devices.
Name: ACCESS_WIFI_STATE
Description: Allows an application to view the information about the status of Wi-Fi.
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: BLUETOOTH
Description: This constant was deprecated in API level 28. Applications should request USE_BIOMETRIC instead
Name: USE_FINGERPRINT
Description: Allows an application to view the status of all networks.
Name: REORDER_TASKS
Description: Allows an application to move tasks to the foreground and background. Malicious applications can force themselves to the front without your control.
Name: ACCESS_NETWORK_STATE
Description: Allows an application to view the status of all networks.
Name: READ_CALL_LOG
Description: Allows an application to read the user's call log.
Name: WRITE_EXTERNAL_STORAGE
Description: Allows an application to write to the SD card.
Name: RECORD_AUDIO
Description: Allows application to access the audio record path.
Name: READ_EXTERNAL_STORAGE
Description: Allows an application to read from SD Card.
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: 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: MODIFY_AUDIO_SETTINGS
Description: Allows application to modify global audio settings, such as volume and routing.
Name: READ_PROFILE
Description: Allows an application to read the user's personal profile data.
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.