Search results by keyword ‘checkm8’

iOS Forensic Toolkit 7.0 brings low-level extraction support for the latest generation of Apple devices. This includes the entire range of iPhone 12 models as well as all other devices capable of running iOS 14.0 to 14.3. Learn how to image the latest iPhone models without a jailbreak.

True physical acquisition is back – but only for a handful of old devices. We’re adding support for unlocking and forensically sound extraction of some of Apple’s legacy iPhones. For iPhone 4, 5, and 5c devices, we’re adding software-based passcode unlocking and device imaging functionality. Moreover, on some models you won’t even need to break the passcode in order to make a full disk image! In this walkthrough we’ll describe the steps required to image an iPhone 4, iPhone 5 or iPhone 5c device.

DFU Mode Cheat Sheet

January 14th, 2021 by Oleg Afonin

The Device Firmware Upgrade mode, or simply DFU, just got a second breath. The ability to image the file system, decrypt the keychain and even do passcode unlocks on some older iPhone models has been made possible thanks to the checkm8 exploit and the checkra1n jailbreak, both of which require switching the phone into DFU. The procedure is undocumented, and the steps are different for the various devices.

Investigating a BitLocker-encrypted hard drive can be challenging, especially if the encryption keys are protected by the computer’s hardware protection, the TPM. In this article, we’ll talk about the protection that TPM chips provide to BitLocker volumes, and discuss vulnerabilities found in today’s TPM modules.

The Screen Time password has been long recommended as an extra security layer. By setting a Screen Time password without any additional restrictions, Apple users could easily dodge attempts of changing or removing the screen lock passcode, resetting the iTunes backup password, or removing the activation lock. For a long time, removing the Screen Time password was not possible without either providing the original password or erasing the device. However, Apple had changed the way it works, making it possible to reset the Screen Time password with an iCloud/Apple ID password.

From time to time, we stumble upon a weird issue that interferes with the ability to install a jailbreak. One of such problems appearing literally out of the blue is the issue of being unable to remove the screen lock password on some iPhone devices. What could be the reason and how to work around the issue? Read along to find out!

The past two years have become a turning point in iOS acquisition. The release of a bootrom-based exploit and the corresponding jailbreak made BFU acquisition possible on multiple devices regardless of security patches. Another exploit covers the entire iOS 13 range on all devices regardless of their hardware revision. ElcomSoft developed a jailbreak-free extraction method for the entire iOS 9.0-13.7 range. Let’s see what low-level acquisition options are available today, and when to use what.

If you are familiar with iOS acquisition methods, you know that the best results can be obtained with a full file system acquisition. However, extracting the file system may require jailbreaking, which may be risky and not always permitted. Are there any reasons to use jailbreaks for extracting evidence from Apple devices?

For almost a decade, if not longer, I have collaborated with Vladimir Katalov on various digital forensics research topics.  He has always been a great source of guidance, especially on iOS related challenges.  When he offered me a standing invitation to post on the Elcomsoft Blog, I felt very humbled and honored to be given the opportunity to post on the ElcomSoft Blog, and I would like to thank the ElcomSoft team.  This article has also been prepared together, with Vladimir Katalov.

It’s been a week since Apple has released iOS 14.2 as well as iOS 12.4.9 for older devices. Just a few days later, the developers updated the checkra1n jailbreak with support for new devices and iOS versions. What does that mean for iOS forensics? Let’s have a look; we have done some testing, and our discoveries are positively consistent with our expectations. Just one exception: to our surprise, Apple did not patch the long lasting vulnerability in iOS 12.4.9 that leaves the door open to full file system extraction and keychain acquisition without jailbreaking.