지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 8, 2020

Welcome to the family! :)

A Fujitsu LIFEBOOK E734 laptop with a Haswell CPU and Phoenix SecureCore Technology #UEFI #firmware on it. Wouldn't #coreboot be way more appropriate?

Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 8, 2020

#DISASSEMBLE ALL THE THINGS! \o/

I marked the chips where to put #coreboot #firmware.

https://www.manualslib.com/manual/1114787/Fujitsu-Lifebook-E733.html?page=10#manual

Removing The Upper Assy - Fujitsu LIFEBOOK E733 Disassembly Instruction [Page 10]

Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 8, 2020
Keyboards and storage media are traces of severe overengineering and thus highly overrated. What do they think USB was invented for? :D
Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 8, 2020
On my machine, the firmware version is 1.14 (01/13/2015), so this vulnerability should exist, right? I'll have a look. :)
Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 8, 2020
What are power buttons for?
Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 8, 2020
The TPM says SLB9655TT12. I only find official references to SLB9665TT1.2 from Infineon, weird. Well, variants I suppose...
Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 8, 2020

At least the world wise web knows it.

https://www.ariat-tech.com/datasheets/5608829441/SLB9655TT1.2.pdf \o/

Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 9, 2020
It says it wants #coreboot #firmware, doesn't have #BootGuard enabled. :)
Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 9, 2020

*ALWAYS* create a #backup first! ☝🏻

Then you can safely put it aside with all the other laptops.

The second one is a GIGABYTE P34G v2 (sold as XMG C404 here), a gaming laptop, running #coreboot, special CyReVolt edition.

Show threadrtn
@CyReVolt what type of dongle is that you're using?
Apr 10, 2020 at 8:59amWeb
Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 10, 2020
@rtn Good old CH431A, never failed me. :)
Show thread지지 ᚠᚱᛖᛃᚨ Daniel 黄法官 CyReVoltApr 10, 2020

@rtn sorry, typo, it's CH341A of course.

Here's how to use it: https://youtu.be/g_PXLxxWh7w

XMG C404 aka Gigabyte P34v2 Firmware Investigation

YouTube
Show threadrtnApr 10, 2020
@CyReVolt Hardcore shit. Nice!