Archive for August, 2017

iOS 9.3.5 Physical Acquisition Made Possible with Phoenix Jailbreak

Thursday, August 24th, 2017

If you watch industry news, you are probably aware of the new Phoenix jailbreak… or not. During the last several years, getting news about iOS jailbreaks from reliable sources became increasingly difficult. The sheer number of fake Web sites mimicking the look of well-known resources such as Pangu and TaiG made us extra careful when trying newly published exploits.

Back to Phoenix. This thing is for real. Phoenix claims support for iPhone 4s, 5/5c, iPad 2/3/4, iPad mini, and iPod 5g running the last version of iOS 9.3.5. We were able to verify these claims by successfully jailbreaking several test devices and using Elcomsoft iOS Forensic Toolkit to perform full physical acquisition (as in imaging and decrypting the physical data partition).

With Phoenix jailbreak, iOS Forensic Toolkit can perform physical acquisition of Apple’s 32-bit devices running iOS 9.3.5, which happens to be the last version of iOS 9. Users of iOS Forensic Toolkit can perform physical-level imaging and decryption of the data partition, decryption and examination of keychain items, and enjoy full unrestricted access to sandboxed app data. This level of access is simply not possible with any other acquisition methods. As an example, physical acquisition of jailbroken devices enables forensic access to saved email messages, passwords, and full conversation logs saved by some of the most secure messengers such as WhatsApp, Telegram, Signal, Skype and Facebook Messenger. Compared to iOS backup analysis, this method adds access to browser cache and temporary files, email messages, extended location history, and data that belongs to apps that explicitly disable backups.

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How to Extract iCloud Keychain with Elcomsoft Phone Breaker

Tuesday, August 22nd, 2017

Starting with version 7.0, Elcomsoft Phone Breaker has the ability to access, decrypt and display passwords stored in the user’s iCloud Keychain. The requirements and steps differ across Apple accounts, and depend on factors such as whether or not the user has Two-Factor Authentication, and if not, whether or not the user configured an iCloud Security Code. Let’s review the steps one needs to take in order to successfully acquire iCloud Keychain.

Pre-Requisites

Your ability to extract iCloud Keychain depends on whether or not the keychain in question is stored in the cloud. Apple provides several different implementations of iCloud Keychain. In certain cases, a copy of the keychain is stored in iCloud, while in some other cases it’s stored exclusively on user’s devices, while iCloud Keychain is used as a transport for secure synchronization of said passwords.

In our tests, we discovered that there is a single combination of factors when iCloud Keychain is not stored in the cloud and cannot be extracted with Elcomsoft Phone Breaker:

  • If the user’s Apple ID account has no Two-Factor Authentication and no iCloud Security Code

In the following combinations, the keychain is stored in the cloud:

  • If the user’s Apple ID account has no Two-Factor Authentication but has an iCloud Security Code (iCloud Security Code and one-time code that is delivered as a text message will be required)
  • If Two-Factor Authentication is enabled (in this case, one must enter device passcode or system password to any device already enrolled in iCloud Keychain)

In both cases, the original Apple ID and password are required. Obviously, a one-time security code is also required in order to pass Two-Factor Authentication, if enabled. (more…)

Acquiring Apple’s iCloud Keychain

Tuesday, August 22nd, 2017

Who needs access to iCloud Keychain, and why? The newly released Elcomsoft Phone Breaker 7.0 adds a single major feature that allows experts extracting, decrypting and viewing information stored in Apple’s protected storage. There are so many ifs and buts such as needing the user’s Apple ID and password, accessing their i-device or knowing a secret security code that one may legitimately wonder: what is it all about? Let’s find out about iCloud Keychain, why it’s so difficult to crack, and why it can be important for the expert.

What is iCloud Keychain

iCloud Keychain is Apple’s best protected vault. Since iCloud Keychain keeps the user’s most sensitive information, it’s protected in every way possible. By breaking in to the user’s iCloud Keychain, an intruder could immediately take control over the user’s online and social network accounts, profiles and identities, access their chats and conversations, and even obtain copies of personal identity numbers and credit card data. All that information is securely safeguarded.

Why It Can Be Important

Forensic access to iOS keychain is difficult due to several layers of encryption. Due to encryption, direct physical access to a locally stored keychain is normally impossible; the only possible acquisition options are through a local password-protected backup or iCloud Keychain. (more…)

The Past and Future of iCloud Acquisition

Monday, August 21st, 2017

In today’s world, everything is stored in the cloud. Your backups can be stored in the cloud. The “big brother” knows where you had lunch yesterday and how long you’ve been there. Your photos can back up to the cloud, as well as your calls and messages. Finally, your passwords are also stored online – at least if you don’t disable iCloud Keychain. Let’s follow the history of Apple iCloud, its most known hacks and our own forensic efforts.

The Timeline of iCloud and iOS Forensics

Our first iOS forensic product was released in February 2010. In 2010, we released what is known today as Elcomsoft Phone Breaker (we then called it “Elcomsoft Phone Password Breaker”). Back then, we were able to brute-force the password protecting encrypted iTunes-made iOS backups. At the time, this was it: you’ve got the password, and off you go. The tool did not actually decrypt the backup or displayed its content; it just recovered the password.

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Attacking the 1Password Master Password Follow-Up

Friday, August 18th, 2017

We received some great feedback on the original article about attacking master passwords of several popular password managers. In one discussion, our benchmark numbers for 1Password were questioned. We had no choice but to re-run the benchmarks and publish an updated chart along with some technical details and explanations. We bring our apologies to AgileBits, the developers of 1Password, for letting the wrong number creep in to our benchmark. Can we still break into 1Password by attacking the master password? Please bear with us for up-to-date information and detailed technical discussion.

We must make one thing extremely clear: this time we did not “hack” anything. We are using good old brute force, enhanced with GPU acceleration, to attack the user’s plain-text master password protecting password managers’ encrypted databases. The four password managers were and still remain secure providing that the user opts for a strong master password. If a truly secure master password is used, it would not be possible to break it within reasonable timeframe.

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One Password to Rule Them All: Breaking into 1Password, KeePass, LastPass and Dashlane

Thursday, August 10th, 2017

We’ve just updated Elcomsoft Distributed Password Recovery with the ability to break master passwords protecting encrypted vaults of the four popular password keepers: 1Password, KeePass, LastPass and Dashlane. In this article, we’ll talk about security of today’s password managers, and provide insight on what exactly we did and how to break in to encrypted vaults. (more…)

Breaking Passwords in the Cloud: Using Amazon P2 Instances

Tuesday, August 1st, 2017

Cloud services such as Amazon EC2 can quickly deliver additional computing power on demand. Amazon’s recent introduction of the a type of EC2 Compute Units made this proposition much more attractive than ever before. With Elcomsoft Distributed Password Recovery now supporting Amazon’s new P2 instances, each with up to 16 GPU units, users can get as much speed as they need the moment they need. In this article, we’ll discuss the benefits of using cloud compute units for password recovery, and provide a step-by-step guide on how to add virtual instances to Elcomsoft Distributed Password Recovery. (more…)