Mobileread
Tutorial WatchThis - Software Jailbreak for any Kindle <= 5.14.2
#1  katadelos 04-02-2022, 03:56 PM
AKA CVE-2022-23224, CVE-2022-23225, CVE-2022-23226 - full writeup with technical details to be released after 5.14.3 has been widely rolled out.

Thank you to NiLuJe, yparitcher and darkassassinua for adding KOReader support for PW5, repackaging all of the hacks and testing this jailbreak

This vulnerability is released in good faith and in the hope that other security researchers will utilise the access that it provides to assist Amazon/Lab126 in improving their security posture.

If you're concerned about the security of your device and do not wish to jailbreak, install firmware version 5.14.3 from this link - I've been working with Amazon to create a fix and can confirm that this version has been hardened against this vulnerability.

Additional thanks to everyone at Amazon/Lab126 who contributed towards this .

Finally, I encourage Amazon/Lab126 to provide a method of unlocking their devices that doesn't involve the need of a 0-day, both for security researchers and for technical users who are interested in modifying their devices. We know that your employees lurk here, use tools that we've created internally and that our ideas have been implemented by you more than once, so help us help you - I promise that we don't bite

Device Compatibility
Spoiler Warning below







This jailbreak is compatible with Kindle devices running the following firmware versions:

KT3, KT4, KOA1, KOA2, KOA3, PW3, PW4, PW5:
5.14.2
5.14.1 (5.14.1.1 on PW5)
5.13.7
5.13.6
5.13.5
5.13.4

KV:
5.13.6
5.13.5
5.13.4

KT2, PW2:
5.12.2.2

You must use the exploit payload that matches your device/firmware combination exactly.


Download Link
watchthis-jailbreak-r03.zip

Installation

Setup
  1. Factory reset the device Make sure to use the "en_GB" or "English (United Kingdom)" locale when setting the language.
  2. Type ;enter_demo in the Kindle search bar after performing a factory reset
  3. Reboot the device
  4. Once in demo mode, skip setting up wifi and enter dummy values for store registration when prompted.
  5. Skip searching for a demo payload
  6. Select the "standard" demo type
  7. Press "Done" at the prompt to sideload content. Do not sideload the jailbreak at this stage.
  8. Once the demo is setup, skip the misconfiguration lockout using the "secret gesture" (double finger tap on bottom right of screen then swipe left)
  9. Enter the demo configuration menu by typing ;demo into the search bar
  10. Select the "Sideload Content" option

Jailbreak
  1. Connect the device to a PC and:
  2. Create the directory .demo at the root of the Kindle storage
  3. Copy ${YOUR_DEVICE}-${YOUR_FW_VERSION}.zip to .demo/
  4. Copy demo.json to .demo/
  5. Create an empty folder at .demo/goodreads. Do not put any files in this folder.
  6. Press "Done" at the prompt to install the jailbreak script
  7. Exit the demo menu and either enter ;dsts or swipe down and select the settings icon to enter the device settings menu
  8. If an application error occurs, hard reboot the device by holding the power button, enter the demo menu again and select Sideload Content -> Done once more without connecting to USB
  9. Select "Help & User Guides" then "Get started"
  10. If jailbreaking KT2 or PW2, select the store button instead
  11. The device will reboot
  12. The jailbreak script will run during the next boot

Post Jailbreak
  1. After the device has rebooted, type ;uzb into the search bar
  2. Connect the device to a PC and copy Update_hotfix_watchthis_custom.bin to the root of the Kindle storage
  3. Eject the device and either enter ;dsts or swipe down and select the settings icon to enter the device settings menu
  4. Select Update Your Kindle to install the custom hotfix
  5. This will take your device out of demo mode, rebuild the application registry and clean up unneeded jailbreak files.

Troubleshooting

You should now have a freshly jailbroken Kindle
9IsoRLg.jpg out.jpg 
Reply 

#2  darkassassinua 04-02-2022, 06:51 PM
Damn,updated PW5 to 5.14.2...
Any hope that this will work on PW5 5.14.2?
Reply 

#3  adwait8 04-02-2022, 08:55 PM
Yass can't wait
Reply 

#4  adwait8 04-02-2022, 10:20 PM
Is this exploit patched already in 5.14.1.1?
Reply 

#5  katadelos 04-03-2022, 05:53 AM
Quote darkassassinua
Damn,updated PW5 to 5.14.2...
Any hope that this will work on PW5 5.14.2?
Just checked, this exploit works on 5.14.2.

Quote adwait8
Is this exploit patched already in 5.14.1.1?
Nope.
Reply 

#6  darkassassinua 04-03-2022, 06:04 AM
Quote katadelos
Just checked, this exploit works on 5.14.2.
So good news!
Reply 

#7  adwait8 04-03-2022, 08:19 AM
Quote katadelos
Just checked, this exploit works on 5.14.2.
That's a great news! Thanks kataledos
Reply 

#8  irreld 04-03-2022, 09:10 AM
Next time maybe consider delaying the disclosure? At least give them some time to refresh the oasis and entry line as well
Reply 

#9  ajs256 04-03-2022, 01:56 PM
Quote katadelos
Just checked, this exploit works on 5.14.2.
Welp, airplane mode time. Thanks for putting this together, I can't wait until this gets released.
Reply 

#10  luxakos 04-03-2022, 03:30 PM
Would this work for Kindle 10th generation 5.14.2 ?

Noob here, I just want to customize my kindle screensaver.
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