Cloud Mail.Ru (Android / Google Play)

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This application is available for Android. This app is designed to organize and store all files in one place online as well as offline via official service Cloud Mail.Ru. The latest build was released on June 15, 2017. Our latest check was performed on Oct 7th, 2016.

Findings Summary

Our examination revealed total 29 items, where were 13 DAR items and 16 DIT items found. Among DAR items were found 0 worst items, 13 bad items, 0 good items, and 0 best items. Among DIT items were found 0 worst items, 0 bad items, 16 good items, and 0 best items.

Below you find 2 infographics summarizing what we described above. Each image provides information about both DAR and DIT items.

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Everything presented below is related to well-known CWEs, such as Sensitive data leakage [CWE-200], Unsafe sensitive data storage [CWE-312], Unsafe sensitive data transmission [CWE-319]. You can read more about it here.

Now let’s go deeper and examine each data item’s protection level.

 

Application Description

Let’s cite the description of this application below:

Cloud Mail.Ru for Android – a free service for saving photos, videos, music, presentations, documents and other files.
With Cloud Mail.Ru all your photos will always be at hand. Upload your files to your cloud drive and they will automatically be available on all your devices.

  • Upload photos from your mobile phone. Adjust the automatic “save to disk” in your cloud Camera Uploads. In order to save bandwidth, it is recommended to perform downloads while connected to a Wi-Fi.
  • Free up space on your device: all your images are already saved in the Cloud.
  • Share files and folders with friends and colleagues in just one click.
  • Save bandwidth – you can send a link to a image, video or document by SMS, e-mail, instant messenger or through a social network.
  • Cloud Mail.Ru for Android allows you to watch videos (including the most popular video formats: avi, mkv, mp4, mov, wmv) and listen to music. Cloud can play a video file without downloading it on the device. Still available ability to open a video into an external player.
  • Manage your files from anywhere – rename, delete, move them between folders.
  • Create shared folders with other users, add any files together. Use shared folders with friends to collect photos from party or travelling. Work with documents in groups, using shared folder with colleagues. Collect and share family memories – all family members can add photos and videos in a shared album.
  • Keep your important files in a safe storage location! No matter what happens to your drive on your PC or phone, all your files stored in the Cloud will stay intact.
  • You can increase your Cloud storage. List of plans is located in the application side-bar.
  • The Cloud Mail.Ru app is available for Android smartphones and tablets.
  • You do not need any wires, flash drives and memory cards. All you need is the free app Cloud Mail.Ru and internet connection.

The application has been tested and is compatible with Android version 4.0 and later.

 

Protection levels.

Locally stored data (Data-at-Rest, DAR).

Locally stored data groups include Address Book ‘n’ Contact Information, Account Information, Application Information, Log Information, Documents Information, Message Information.
The average DAR value is 3.50 points (7.00 points of system protection and 0.00 points of own protection). It equals to a typical value (3.5 points, where’s 7 points of system protection and 0 points of own protection).

Items with average value 3.50 points (7 points of system protection, 0 points of own protection) means data protection levels have following definitions. Frankly talking, extra data found that shouldn’t be accessed where system protection level means – root/jailbreak is required but not possible without wiping device data, and own protection level means – stored as is.

– Contact Short Profile (‘Address Book ‘n’ Contact Information’ Group) – Name, Email ID, Phone number of contacts. This data item related to mentioned group meant to be info locally stored, cached or transferred over the network and belong to this application if it’s social even,

– Credentials (IDs) (‘Account Information’ Group) – Only account IDs like app or 3rd party user IDs including emails, phone number, usernames, etc. (depends on apps). This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Account Settings ‘n’ Configs (‘Account Information’ Group) – Information about your account settings and configurations. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Environment (‘Application Information’ Group) – Different info about the environment of the device including apps lists, device info, OS name and versions, updates, a list of users, network details, etc. This data item related to mentioned group meant to be any info related to the app, app settings, including installed apps or installers,

– Device Data (‘Log Information’ Group) – Device ID, Device Name, Device OS Name and Version, and jailbroken/root status. This data item related to mentioned group meant to be any information stored in local or network logs,

– Locale ‘n’ TimeZone (‘Log Information’ Group) – Details about your locale, languages, time zone, country and so on. This data item related to mentioned group meant to be any information stored in local or network logs,

– Application Events (‘Log Information’ Group) – App events referred to user actions ‘n’ activities were done. This data item related to mentioned group meant to be any information stored in local or network logs,

– Local ‘n’ Network Paths (‘Documents Information’ Group) – Paths about local or networks directories, folders, files. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Document Details (‘Documents Information’ Group) – Common info about documents synchronized or stored locally (properties like size, date and time, etc.). This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Sync Documents (‘Documents Information’ Group) – Documents synchronized or locally stored on your device as is or converted into another file formats (like.pdf or set of separated jpg file per each .pdf file. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Attachments (‘Message Information’ Group) – Either Raw or encoded attachments files. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Messages (‘Message Information’ Group) – Different types of messages, conversations, except for SMS, MMS but including recipient and sender IDs and attachments. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Contact Short Profile (‘Message Information’ Group) – Name, Email ID, Phone number of contacts. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments

Keep in mind if you’re using some Android devices such Samsung, LG or another device with an unlocked or non-locked loader that allow rooting your device without user action, the system level equals 6 points instead of 7. It means your data can be stolen without involving your actions.

Transferred data (Data-in-Transit, DIT).

Transferred data groups include Device Information, Application Information, Credentials Information, Account Information, Documents Information, Analytics ‘n’ Ads Information.
The average DIT value is 5.00 points (6.00 points of system protection and 4.00 points of own protection). It is higher than a typical value (4 points, where’s 4 points of system protection and 4 points of own protection).

Items with average value 5.00 points (6 points of system protection, 4 points of own protection) means data protection levels have following definitions. Frankly talking, data is not available all the time or partially accessed where system protection level means – MITM prevented or fake certificate importing prevented, but plaintext non-protected traffic is intercepted, and own protection level means – bypassed by fake/stolen root certificates.

– Device Data (‘Device Information’ Group) – Device ID, Device Name, Device OS Name and Version, and jailbroken/root status. This data item related to mentioned group meant to be details about your device,

– Application Events (‘Application Information’ Group) – App events referred to user actions ‘n’ activities were done. This data item related to mentioned group meant to be any info related to the app, app settings, including installed apps or installers,

– Credentials (IDs) (‘Credentials Information’ Group) – Only account IDs like app or 3rd party user IDs including emails, phone number, usernames, etc. (depends on apps). This data item related to mentioned group meant to be any types of credentials including basic (IDs only), passwords, tokens, etc.,

– Account Settings ‘n’ Configs (‘Account Information’ Group) – Information about your account settings and configurations. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Credentials (Passwords) (‘Credentials Information’ Group) – Well-known passwords or PINs you’re using to get access to your account (usually it is worse than tokens because it gives full access to your account). This data item related to mentioned group meant to be any types of credentials including basic (IDs only), passwords, tokens, etc.,

– Credentials (Tokens) (‘Credentials Information’ Group) – Different tokens used to get access to your account, except for passwords but including app or 3rd party tokens, secret keys, etc. (usually give full access to your account). This data item related to mentioned group meant to be any types of credentials including basic (IDs only), passwords, tokens, etc.,

– Account Data (‘Account Information’ Group) – Basic info about account like name, a list of sub-account (e.g. financial or other) and some linked data like a phone number. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Media Data (‘Account Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Sync Documents (‘Documents Information’ Group) – Documents synchronized or locally stored on your device as is or converted into another file formats (like.pdf or set of separated jpg file per each .pdf file. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Tracked Data ‘n’ Favorites (‘Documents Information’ Group) – Any favorites data or tracked data marked as desirable by users and for users (Means, user is on FB messenger, Viber, bank client or favourite hotel, room type, flight route, airline). This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Preview (‘Documents Information’ Group) – Some pieces of info downloaded locally or to show only on display only like a preview of emails, social posts, documents, thumbnails, etc. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Media Data (‘Documents Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Local ‘n’ Network Paths (‘Documents Information’ Group) – Paths about local or networks directories, folders, files. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Document Details (‘Documents Information’ Group) – Common info about documents synchronized or stored locally (properties like size, date and time, etc.). This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Document List (‘Documents Information’ Group) – The list of documents stored local or synchronized over the Internet. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Device Data (‘Analytics ‘n’ Ads Information’ Group) – Device ID, Device Name, Device OS Name and Version, and jailbroken/root status. This data item related to mentioned group meant to be any info related to analytics services like Flurry, Google Analytics, etc. or advertisements

Keep in mind if you’re using out-of-date Android < 7.0, the system level equals 4 points instead of 6. It means your data can be stolen with a crafted preinstalled certificate on the device or if someone makes you install a certificate. Also, if you’re using out-of-date Android < 5.0, the system level equals 2 points instead of 4. It means your data can be stolen without involving your actions.

Privacy Policy

Full application privacy policy is available here.

You may find privacy policy details proceeding the link above to compare developer’s vision on data protection with our results. Additional information about privacy policy was found here.