Yandex.Disk 2.17 (iOS / App Store)

175x175bb (75)

This application is available for iOS. This app is designed to organize and store all files in one place online as well as offline via official service Yandex Disk. The latest build was released on May 03, 2017. Our latest check was performed on Oct 7th, 2016.

Findings Summary

Our examination revealed total 33 items, where were 18 DAR items and 15 DIT items found. Among DAR items were found 0 worst items, 5 bad items, 11 good items, and 1 best item. Among DIT items were found 0 worst items, 15 bad items, 0 good items, and 0 best items.

Below you find 3 infographics summarizing what we described above. Each image provides information about both DAR and DIT items.

This slideshow requires JavaScript.


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:

Yandex.Disk is a free cloud storage service that gives you access to your photos, videos and documents from any internet-enabled device. Download the app to your phone or tablet and you’ll literally be able to carry your files with you everywhere.

  • Transfer data from your cell phone to computer and back again, all you need is an internet connection.
  • Your files will be completely safe on Disk, even if your mobile or tablet gets lost or broken.
  • To share a file or folder, simply send a link to it and save on mobile data charges.
  • Photos taken through the app will be instantly available on all your other devices.

 

Protection levels.

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

Locally stored data groups include Analytics ‘n’ Ads Information, Credentials Information, Documents Information, Storage Information, Media Information, Application Information, Device Information, Account Information, Log Information.
The average DAR value is 5.50 points (7.00 points of system protection and 4.00 points of own protection). It is higher than a typical value (3.5 points, where’s 7 points of system protection and 0 points of own protection).

Items’ GROUP #1 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.

– 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,

– 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.,

– 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,

– URLs (‘Documents Information’ Group) – Different types of URLs referred to your files stored in clouds, profiles, social accounts, media files available online, etc. 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 (‘Storage 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 information referred to storage like credentials, settings, documents and so on

Items’ GROUP #2 with average value 6.50 points (7 points of system protection, 6 points of own protection) means data protection levels have following definitions. Frankly talking, protection and privacy issues are still possible but might involve interaction with an app code where system protection level means – root/jailbreak is required but not possible without wiping device data, and own protection level means – data is not available in backups.

– Screen Snapshots (‘Media Information’ Group) – Screenshots of your device screen running certain apps; common as an iOS app multitasking feature (app swipes) or browser tab swipes. This data item related to mentioned group meant to be any data like photo, image, video, audio,

– 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,

– 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,

– 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,

– 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,

– Log Data (‘Log Information’ Group) – Logged any data as a solid file or multipart files. 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,

– URLs (‘Log Information’ Group) – Different types of URLs referred to your files stored in clouds, profiles, social accounts, media files available online, etc. This data item related to mentioned group meant to be any information stored in local or network logs,

– 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,

– Application Configs (‘Account Information’ Group) – Different configuration files created by your app, perhaps app permissions. 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

Also, keep in mind, using jailbroken device means the system protection level is 0 points and you’re using out-of-date iOS < 8.3 the system protection level is 2 points. If some data marked as shareable via iTunes, then the system protection level is 4 points.

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

Transferred data groups include Device Information, Application Information, Credentials Information, Account Information, Documents Information.
The average DIT value is 4.50 points (5.00 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 4.50 points (5 points of system protection, 4 points of own protection) means data protection levels have following definitions. Frankly talking, data available if it’s allowed only and may require user action where system protection level means – some techniques are available to developers to keep connection bypassing system settings, like proxy settings, etc., 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

Keep in mind if you’re using out-of-date iOS < 9.0, 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.