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222w 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 Twitter):

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.


PS3 Hacker Mathieulh Finds PlayStation 3 Firmware 3.56 Exploit

PS3 Hacker Mathieulh Finds PlayStation 3 Firmware 3.56 Exploit

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#321 - SanctumSlayer - 176w ago
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Oh yes Denida sorry I forgot about that. You're right about that. Sorry HackSoul.

Heymanhru I forgot about the steep prices there.

#320 - HeyManHRU - 176w ago
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Brazil isn't a third world country, it's actually far from being a third world country, lol. I don't see why he should be stuck playing PS2 games just because PS3 games are overpriced in Brazil.

#319 - Denida - 176w ago
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Before you start being too harsh on HackSoul, you may want to remember that SanctumSlayer, that is living in Brazil still have to endure a market with very high gaming prices...

#318 - SanctumSlayer - 176w ago
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That's no excuse HackSoul! If money's so tight, a PS2 is what you should be in the market for. Wait til the PS4 comes so your 3rd world country will be able to afford PS3s. Heck I'm surprised you're even on the Internet!

#317 - HackSoul - 176w ago
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Sorry guys. I overreacted... Sorry KaKaroto! You're one of best on the Scene!

Where I live there's no way to afford proper copies of games and also there's no work for anyone... So buying a game is just possible every 8-10 months with the money I get from one-day jobs.

#316 - hotd54me - 176w ago
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I always thought that math whatever the hell his name is was arrogant. he talked down at people and in a roundabout way called them stupid when they didn't understand his "work" and never really contributed much. On the other hand kakaroto team has always shown proof, explained and elaborated all their work, and didn't tell a bundle of lies. job well done sirs! I look forward to your future exploits!

#315 - elser1 - 176w ago
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i haven't turned my jb ps3 on for months.. LOL will be soon though when e3 dual boot gets delivered..

all i want is backups and trophy support on psn.. LOL

#314 - jarvis - 176w ago
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Quote Originally Posted by dbraganti View Post
I agree with you, never said i was not interested in run backups and i also think the same as you. Everyone who wants a CFW to rub their SNES emulator is nothing more than an liar.

The main point i was trying to expose is that there are plenty of games here and everyone who owns a ps3 can buy some. The choice of buy or not is of each one and that i will never argue against...

This is not true. I have a 3.55 CFW in place solely for emulators. It's really what I've wanted for years; one simple box to plug into my TV with ten years of gaming history on it. I am happy.

I have a second PS3 kept up to date to play PS3 games. Actually I haven't turned this one on in months. I've pretty much had it with the console world. I've gone back to PC gaming. Skyrim mostly

#313 - racer0018 - 176w ago
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This is good news. I just hope that it all works out good and we get to take a look at this soon.

#312 - dyceast - 176w ago
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Props to KaKaRoTo and his team....

Amazing WORK!!!