Mobile password keepers don’t keep the word

March 16th, 2012 by Olga Koksharova
Category: «Cryptography», «Did you know that...?», «Elcomsoft News», «General», «Industry News», «Passwords & Human Factor», «Security», «Software»
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We’ve analyzed 17 popular password management apps available for Apple iOS and BlackBerry platforms, including free and commercially available tools, and discovered that no single password keeper app provides a claimed level of protection. None of the password keepers except one are utilizing iOS or BlackBerry existing security model, relying on their own implementation of data encryption. ElcomSoft research shows that those implementations fail to provide an adequate level of protection, allowing an attacker to recover encrypted information in less than a day if user-selectable Master Password is 10 to 14 digits long.

The Research

Both platforms being analyzed, BlackBerry and Apple iOS, feature comprehensive data security mechanisms built-in. Exact level of security varies depending on which version of Apple iOS is used or how BlackBerry users treat memory card encryption. However, in general, the level of protection provided by each respective platform is adequate if users follow general precautions.

The same cannot be said about most password management apps ElcomSoft analyzed. Only one password management app for the iOS platform, DataVault Password Manager, stores passwords in secure iOS-encrypted keychain. This level of protection is good enough by itself; however, that app provides little extra protection above iOS default levels. Skipping the complex math (which is available in the original whitepaper), information stored in 10 out of 17 password keepers can be recovered in a day – guaranteed if user-selectable master password is 10 to 14 digits long, depending on application. What about the other seven keepers? Passwords stored in them can be recovered instantly because passwords are either stored unencrypted, are encrypted with a fixed password, or are simply misusing cryptography.

Interestingly, BlackBerry Password Keeper and Wallet 1.0 and 1.2 offer very little protection on top of BlackBerry device password. Once the device password is known, master password(s) for Wallet and/or Password Keeper can be recovered with relative ease.

In the research we used both Elcomsoft Phone Password Breaker and Elcomsoft iOS Forensic Toolkit.

Recommendations

Many password management apps offered on the market do not provide adequate level of security. ElcomSoft strongly encourages users not to rely on their advertised security, but rather use iOS or BlackBerry built-in security features.

In order to keep their data safe, Apple users should set up a passcode and a really complex backup password. The unlocked device should not be plugged to non-trusted computers to prevent creation of pairing. Unencrypted backups should not be created.

BlackBerry users should set up a device password and make sure media card encryption is off or set to “Encrypt using Device Key” or “Encrypt using Device Key and Device Password” in order to prevent attackers from recovering device password based on what’s stored on the media card. Unencrypted device backups should not be created.

The full whitepaper is available at http://www.elcomsoft.com/WP/BH-EU-2012-WP.pdf


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REFERENCES:

Elcomsoft iOS Forensic Toolkit

Extract critical evidence from Apple iOS devices in real time. Gain access to phone secrets including passwords and encryption keys, and decrypt the file system image with or without the original passcode. Physical and logical acquisition options for all 64-bit devices running all versions of iOS.

Elcomsoft iOS Forensic Toolkit official web page & downloads »


Elcomsoft Phone Breaker

Gain full access to information stored in FileVault 2 containers, iOS, Apple iCloud, Windows Phone and BlackBerry 10 devices! Download device backups from Apple iCloud, Microsoft OneDrive and BlackBerry 10 servers. Use Apple ID and password or extract binary authentication tokens from computers, hard drives and forensic disk images to download iCloud data without a password. Decrypt iOS backups with GPU-accelerated password recovery.

Elcomsoft Phone Breaker official web page & downloads »