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GeoHot Resumes Sony PS3 Hacking, Opens PS3 Hacks Blog

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260w 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, Facebook and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene and PlayStation 4 scene updates and fresh homebrew releases!

Comments 152 Comments - Go to Forum Thread »

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#137 - TUHTA - 257w ago
TUHTA's Avatar
well it's nothing on his blog..

#136 - Mdiv - 257w ago
Mdiv's Avatar
Quote Originally Posted by Preceptor View Post
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

I kinda respect him for not appearing to take on Mathieulh's advice. A lot in the world wouldn't happen if you just believed what another man says is gospel.

#135 - TUHTA - 257w ago
TUHTA's Avatar
Quote Originally Posted by Raze1988 View Post
He said the following (also on the first page of this thread):

thank you so Raze1988.. i'm waiting

#134 - modzila - 257w ago
modzila's Avatar
Suppose in a way you could say that the peeps hacking the PS3 are actually doing $ony a favour; one could say that $ony might learn a lesson just before releasing the PS4. That is if George exhibits something before the PS4's development is finished.

The idea to use PS3s as a blade server does tickle my nerdy gland though in case heavy computational power is required, wouldn't it be impressive that 20 million CELLs are out there and could be linked by the Internet. (Sure there are already supercomputers out there, with the power of Petaflops, but only in hands of a few)

Back to the topic, I am glad to read this show is back on the road and I don't care, Hacking is useful for society (Micro$oft backfilling holes in IE after hackers used it to attack Google, anyone...?)

#133 - Haksam - 257w ago
Haksam's Avatar
Quote Originally Posted by Sh1m3oN View Post
I don't share what have posted some people in his blog. The offensive comments aren't utility! He only want try...

They were angry idiots who wanted geohot to deal with the new iphone bootrom. They dont even know what NAND is god save their new iphones (for being cheap and waiting for the price to drop)

Blackrain app solely developed by geohot and appreciated by the devs as one of the last few exploitations found until Apple learned their lesson and improved the security.

If one area has been tried, there's no harm trying again. This is why you never be pessimistic about something, so what if there's official documents to brag about a security system, even stupid idiots like IBM can have flaws and they definitely wouldn't document that in a public PDF. If this thing ever got hacked, Sony is gonna be pissed with IBM rather than the public for cracking it.


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