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GeoHot Resumes Sony PS3 Hacking, Opens PS3 Hacks Blog


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247w ago - This weekend GeoHot, the hacker responsible for several Apple iPhone hacks, has returned to Sony PS3 hacking after his initial announcement a few months back and has opened a PS3 hacks blog (linked above).

He recently made this [Register or Login to view links]:

"I just pulled everything from the USB bus... [Register or Login to view links] the Cell processor SPI bus, PS3 is going down :-)"

These are the latest posts on his new PS3 hacks blog:

Cell SPI

The Cell processor has an SPI port which is used to configure the chip on startup. Well documented [Register or Login to view links]. It also allows hypervisor level MMIO registers to be accessed. In the PS3, the south bridge sets up the cell, and the traces connecting them are on the bottom layer of the board. Cut them and stick an FPGA between.

Quick theoretical attack. Set an SPU's user memory region to overlap with the current HTAB. Change the HTAB to allow read/write to the hypervisor! If that works it's full compromise of the PPU.


A Real Challenge

The PS3 has been on the market for over three years now, and it is yet to be hacked. It's time for that to change.

I spent three weeks in Boston working software only, but now I'm home and have hardware. My end goal is to enable unsigned code execution, making every unit into a test and opening up a third party development community, either through software or hardware (with a mod chip). The PS3 is a prime example of how security should be done, very open docs wise, and the thing even runs Linux. But it isn't unbreakable :-)



Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!

Comments 152 Comments - Go to Forum Thread »

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Sh1m3oN's Avatar
#132 - Sh1m3oN - 244w ago
I don't share what have posted some people in his blog. The offensive comments aren't utility! He only want try...

Preceptor's Avatar
#131 - Preceptor - 244w ago
Hmmmm Good to know Geohot is still working on the ps3, despite the fact that he blatantly ignore all of Mathieulh's advices. I still wish him good luck for all our sakes

Raze1988's Avatar
#130 - Raze1988 - 244w ago
Quote Originally Posted by TUHTA View Post
i can't still understand what he want to do? I mean what finally he get? He want to attack CELL and what next?? Sorry... but i really can't understand

He said the following (also on the first page of this thread):
Quote Originally Posted by GeoHot
My end goal is to enable unsigned code execution, making every unit into a test and opening up a third party development community, either through software or hardware (with a mod chip).

TUHTA's Avatar
#129 - TUHTA - 244w ago
i can't still understand what he wants to do? I mean what finally he get? He want to attack CELL and what next?? Sorry... but i really can't understand

smarty94's Avatar
#128 - smarty94 - 244w ago
I hope something comes of this. I'm not sure if Geohot will be able to do much more than the PS3 Dev's have done, but it's nice to have a new angle.

For now... we wait

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