Booking.com Hotels Vacation Rentals (Android / Google Play)

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This application is available for Android. This app is designed for instant confirmation, paperless check-in and offline maps, to let every time you book accommodation get access to any out of 800,000+ properties you desire. The latest build was released on July 6, 2017. Our latest check was performed on Oct 7th, 2016.

Findings Summary

Our examination revealed total 43 items, where were 20 DAR items and 23 DIT items found. Among DAR items were found 0 worst items, 20 bad items, 0 good items, and 0 best items. Among DIT items were found 3 worst items, 0 bad items, 20 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.

 

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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:

Download the highest rated travel app, with thousands of people finding hotel, motel, & vacation rental travel deals. Find a stay for any trip, vacation, or weekend getaway anywhere in the world!
Search for Hotels, Motels & Vacation Rentals

  • With 1,100,000+ hotels, motels, vacation rentals and more – we’ve got it all
  • Book a last-minute hotel, motel or vacation rental, many without a credit card!
    Find a Great Travel Deal
  • View maps to make sure your hotel, motel or vacation rental is where you want to be
  • Get great travel deals at all kinds of amazing properties (not just cheap hotels!)
    Book and make changes, anytime
  • Get instant confirmation – on hotel, motel or vacation rental
  • 24/7 customer service when you book a hotel, motel or vacation rental worldwide

 

Protection levels.

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

Locally stored data groups include Analytics ‘n’ Ads Information, Account Information, Credentials Information, Location ‘n’ Maps Information, Social Information, Travel Information, Media Information, Booking ‘n’ Purchases 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.

– Device Details (‘Analytics ‘n’ Ads Information’ Group) – Includes basic device details plus hardware key and fingerprints as well as IMEI. This data item related to mentioned group meant to be any info related to analytics services like Flurry, Google Analytics, etc. or advertisements,

– Account Details (‘Account Information’ Group) – Full info about your account including account membership, expiration, profile, linked data and account, 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,

– 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.,

– Media Data (‘Location ‘n’ Maps Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any geodata from trackers, social networks, GPS, etc.,

– GEO Data (‘Location ‘n’ Maps Information’ Group) – Any GEO info stored as plain text referred to the places or tracked activity. This data item related to mentioned group meant to be any geodata from trackers, social networks, GPS, etc.,

– Address Data (‘Location ‘n’ Maps Information’ Group) – Home, work or another type of owner address stored by apps. This data item related to mentioned group meant to be any geodata from trackers, social networks, GPS, etc.,

– 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.,

– Address Data (‘Account Information’ Group) – Home, work or another type of owner address stored by 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,

– Credentials (IDs) (‘Social 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 info grabbed from 3rd party social networks,

– Account Data (‘Social 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 info grabbed from 3rd party social networks,

– Tracked Data ‘n’ Favorites (‘Travel 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 travel info like flight, accommodation, ground transportation, etc.,

– Personalization (‘Media Information’ Group) – Info describes user preferences, favorites, tracked data, search requests, suggestions, etc. This data item related to mentioned group meant to be any data like photo, image, video, audio,

– Personalization (‘Travel Information’ Group) – Info describes user preferences, favorites, tracked data, search requests, suggestions, etc. This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– Address Data (‘Travel Information’ Group) – Home, work or another type of owner address stored by apps. This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– GEO Data (‘Travel Information’ Group) – Any GEO info stored as plain text referred to the places or tracked activity. This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– Travel Details (‘Travel Information’ Group) – Full info about accommodation (hotel, address, contacts, room, date and time, facilities, media data), flights (routes, location, date and time, media data) or ground (routes, location, date and time, media data). This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– Media Data (‘Travel Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– Media URLs (‘Travel Information’ Group) – URLs related to media info such as stream media or profile’s media, etc. This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– Orders & Reservation Details (‘Booking ‘n’ Purchases Information’ Group) – Full info about orders, reservations, like ID, date and time, amount of payment, flight routes, hotel or another order details, rules, linked data. This data item related to mentioned group meant to be any info related to your booking and purchases like travel, app or another kind of purchases,

– Orders & Reservation History (‘Booking ‘n’ Purchases Information’ Group) – Basic info about orders, reservations, like ID, date and time, amount of payment, and place (depends on apps). This data item related to mentioned group meant to be any info related to your booking and purchases like travel, app or another kind of purchases

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, Location ‘n’ Maps Information, Travel Information, Social Information, Booking ‘n’ Purchases Information, Personal ‘n’ Private Information, Media Information, Account Information, Payment ‘n’ Transaction Information, Financial Information.
The average DIT value is 4.35 points (5.22 points of system protection and 3.48 points of own protection). It is less than a typical value (4 points, where’s 4 points of system protection and 4 points of own protection).

Items’ GROUP #1 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 Configs (‘Application 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 the app, app settings, including installed apps or installers,

– GEO Data (‘Location ‘n’ Maps Information’ Group) – Any GEO info stored as plain text referred to the places or tracked activity. This data item related to mentioned group meant to be any geodata from trackers, social networks, GPS, etc.,

– Address Data (‘Location ‘n’ Maps Information’ Group) – Home, work or another type of owner address stored by apps. This data item related to mentioned group meant to be any geodata from trackers, social networks, GPS, etc.,

– Environment (‘Device 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 details about your device,

– Tracked Data ‘n’ Favorites (‘Travel 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 travel info like flight, accommodation, ground transportation, etc.,

– Credentials (IDs) (‘Social 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 info grabbed from 3rd party social networks,

– Credentials (Passwords) (‘Social 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 info grabbed from 3rd party social networks,

– Credentials (Tokens) (‘Social 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 info grabbed from 3rd party social networks,

– Media Data (‘Social Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be info grabbed from 3rd party social networks,

– Orders & Reservation History (‘Booking ‘n’ Purchases Information’ Group) – Basic info about orders, reservations, like ID, date and time, amount of payment, and place (depends on apps). This data item related to mentioned group meant to be any info related to your booking and purchases like travel, app or another kind of purchases,

– Orders & Reservation Details (‘Booking ‘n’ Purchases Information’ Group) – Full info about orders, reservations, like ID, date and time, amount of payment, flight routes, hotel or another order details, rules, linked data. This data item related to mentioned group meant to be any info related to your booking and purchases like travel, app or another kind of purchases,

– Personalization (‘Personal ‘n’ Private Information’ Group) – Info describes user preferences, favorites, tracked data, search requests, suggestions, etc. This data item related to mentioned group meant to be any personal and private info is not grabbed from the 3rd party social networks or your IDs,

– Travel Details (‘Travel Information’ Group) – Full info about accommodation (hotel, address, contacts, room, date and time, facilities, media data), flights (routes, location, date and time, media data) or ground (routes, location, date and time, media data). This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– GEO Data (‘Travel Information’ Group) – Any GEO info stored as plain text referred to the places or tracked activity. This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– Address Data (‘Travel Information’ Group) – Home, work or another type of owner address stored by apps. This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.,

– Account Details (‘Account Information’ Group) – Full info about your account including account membership, expiration, profile, linked data and account, 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,

– Account Data (‘Social 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 info grabbed from 3rd party social networks,

– Card Full Information (‘Payment ‘n’ Transaction Information’ Group) – All details about card include short info, holder address, bank info and CVC, CVV, CVV2. This data item related to mentioned group meant to be details about transactions and payment data involved into transaction records,

– Card Short Information (‘Financial Information’ Group) – Some info about card holder, card number full or short) and expiration. This data item related to mentioned group meant to be any info that describe payments capabilities

Items’ GROUP #2 with average value 0.00 points (0 points of system protection, 0 points of own protection) means data protection levels have following definitions. Frankly talking, data ‘as is’ and easily accessed (plaintext, no protection at all) where system protection level means – transferred (or supposed to be) ‘as is’ (plaintext) due to jailbreak/root or preinstalled non-trusted firmware, certificates, etc., and own protection level means – transferred as is, perhaps protection mode turns off or doesn’t exist or info reveal eventually.

– Personalization (‘Media Information’ Group) – Info describes user preferences, favorites, tracked data, search requests, suggestions, etc. This data item related to mentioned group meant to be any data like photo, image, video, audio,

– Maps Data (‘Location ‘n’ Maps Information’ Group) – Map data loaded by internal (native) or third party map applications like Apple/Google Maps or another one. This data item related to mentioned group meant to be any geodata from trackers, social networks, GPS, etc.,

– Media Data (‘Travel Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any travel info like flight, accommodation, ground transportation, etc.

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.

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