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PS3 Hacker Mathieulh Finds PlayStation 3 Firmware 3.56 Exploit


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187w ago - Today PS3 hacker Mathieulh reports finding a PlayStation 3 Firmware 3.56 exploit, although he states he has no plans to give any further details about it.

To quote from PSX-Scene (linked above): Well-known hacker Mathieu Hervais has reportedly found a bug that allows exploiting metldr, the bootloader and firmware version 3.56. Unfortunately, he refuses to release it.

Originally Posted by Mathieulh (via [Register or Login to view links]):

I hesitated a lot before tweeting about it, but a bug allows exploiting metldr, the bootloader and 3.56+. I don't intent to ever unveil it.

So much for "unhackable" PS3s though... I am not giving any further details about it. Sorry.

Actually the revocation list exploit doesn't allow you to exploit isoldr, you could however sign a revoke list if you had the revocation list keys and knew the sign fail, and use that to dump isoldr. Metldr does not load revocation lists.

This has been tested, how do you think I could release the lv2ldr and appldr keys ? (about 24hrs before Geohot showed up with metldr keys) This has been tested, how do you think I could release the lv2ldr and appldr keys ? (about 24hrs before Geohot showed up with metldr keys)

You can also dump any loader using a signed metadata (including metldr) though that means you need to have the keys for it in the first place (kinda kills the purpose)

Your entire purpose is to get the isolated process (the code running inside the spu) to jump to your instructions

For exemple the following instructions will dump the isolated LS to the SPU mailbox:

loop:
rdch $3, ch29
lqd $3, 0($3)
wrch ch28, $3
rotqbyi $3, $3, 4
wrch ch28, $3
rotqbyi $3, $3, 4
wrch ch28, $3
rotqbyi $3, $3, 4
wrch ch28, $3
up_one:
br loop
br up_one

Of course you'll need a ppu payload to fetch the mailbox data. Metldr is trivial to dump now that you can sign your loader, but I wont say anything more on this.

Finally the problem with isoldr and the revoke list exploit isn't so much that the exploit doesn't work (it actually does) It's that the payload from the crafted revoke list overwrites isoldr keys (which kinda kills the whole purpose), You can however get the revoke list keys from lv2ldr or appldr using the revoke list exploit and then sign a revoke list metadata to exploit isoldr later on. (There are other ways to get isoldr though, including the 3.60+ exploit I have (but there is at least another I know of) Again, good luck in your endeavor.

There is more than one npdrm key. It's not been released because the ones who have the skills to do it do not remotely care about pirating PlayStation store games (obviously).

Finally, in related PS3 homebrew news today a PS3 FW Downloader application has been released which includes Official PS3 Firmware 2.50 - 3.55 and has Geohot, Kmeaw, Wutangraz PS3 Custom Firmware and 3.55 Downgrader support.






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 381 Comments - Go to Forum Thread »

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Nabnab's Avatar
#371 - Nabnab - 139w ago
It's more for the dev who want to be more interested by bypassing the ECDSA -> using timing attack
also TLS - > transport layer security, you can see that on PS3swu include TLS for the update of firmware.

LOAD->TLS->LOOS1

hawkY's Avatar
#370 - hawkY - 139w ago
what is the purpose of this ?

I mean i know is some sort of cryptography, but what is the use of it for the scene ?

Nabnab's Avatar
#369 - Nabnab - 139w ago
Just want to add this

[Register or Login to view links]

SanctumSlayer's Avatar
#368 - SanctumSlayer - 139w ago
Yea geohotz should have never showed his face. Should of released it anonymously or something

Nabnab's Avatar
#367 - Nabnab - 139w ago
Apparently you don't want to understand ? if some people keep stuff and just share without put that every on the web, we probably don't see that coming but also keep in mind that the world try to do better and better, today have DMCA, tomorrow have other things, DMCA it's just a moment to take... in the past we didn't have internet, today we have, tomorrow we can have better possibility to share, etc...

Sony didn't fail, it's the scene fail in here, also whatever they send a DMCA to Gary Wayne Bowser (aka GaryOpa) hosting some OFW/CFW so ? i think is more related to the dongle, don't think ?...

Sony never obliged anyone to buy their product and not even Apple, you know that Apple is more strict and more spying you than Sony ?... the iPhone is certainly the baddest phone i ever seen, i prefer a good nokia than i bad Apple

i use personally a iMac because of the resolution and to save some place, for some product it's good for other is bad, look what happen if the people complaining, Apple made bootcamp to support Windows (it's probably because of the help of Microsoft in the past)

I don't think Sony is that bad but it's probably doing what they think is better for the company, how much money they lost ?...

Nothin will happen to me in this way, i don't make real problem for Sony... i was already complaining about the stuff they made, like SDK Open suite that don't support Linux/Mac OS and they don't give any good support to help to the indie dev, etc...

For the PS Vita, it's different we are not obliged to use CMA...

I don't remember anything about the guy who was going to release a PSN Method but it's also doesn't make any sense, you choose like on the XBOX live, you want to keep the PS3/XBOX like that keep but don't ask too much

nobody have a life gone lol.. .and where you saw that the dev was really sued ? all is more theory/fail comment, don't take too seriously all you read on internet, stuff can be true, like they can be lie.

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