Post: Decrypt Or Dump LV0 For 3.60 CFW+ Exploit – Mathieulh
03-28-2011, 08:15 PM #1
kyskidz
Big Sister
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We’ve seen countless times that Mathieulh trying to give the scene all the hints he can, but this time, he pretty much telling you peeps the real deal way to the exploit that we’ve been yearning of all this time

Originally posted by another user
@xShadow125 You can update from your pwn pup only from 3.55 or lower, unless you have an exploit.

@xShadow125 Of course that should be fixed in upcoming lv0 revisions anyway (By moving the ldrs to the top of lv0)

@xShadow125 You run the 3.60 lv0, then you switch the nor, and pull the cell reset line, and you dump the extra KBs where the loaders are.

@xShadow125 Basically you have a nor with 3.55 (or lower) lv0 and your own small lv1 code that does the dump, and 3.60 lv0 on the other.

@xShadow125 You wont get all of lv0 but the part with the loaders shouldn’t be overwritten.

@xShadow125 You can actually get all the 3.60 keys/loaders without knowing lv0 keys by dumping lv0 from ram with dual nor and signed lv1.

To those planning on building a 3.56+ pup for whatever reason, the files attributes changed, the group and user ids for the files as well.

The new 3.56+ values for tarballs are the following: owner_id, “0000764″ group_id, “0000764″ owner, “tetsu” group, “tetsu” ustar, “ustar “

You can use fix_tar to use those new values. Use with caution.

By comparison, those are the pre-3.56 values. owner_id, “0001752″ group_id, “0001274″ owner, “pup_tool” group, “psnes” ustar, “ustar “

@Ps3WeOwnYoU You need to either decrypt or dump lv0, then you can get the encrypted loaders and decrypt them with the metldr key. Good luck.


So, to decrypt this LV0 thing, we need to get to know it better. In the latest blog post by rms, You must login or register to view this content. explained briefly what LV0 is in the console’s security

Originally posted by another user
Anyway, let’s really discuss something PS3 instead of my PC xD, let’s start with Lv0, the most unknown level of the PS3. Lv0 initializes PS3 base hardware such as PowerPC/PPU portion of Cell/BE, SPU isolation for asecure_loader, and gelic ethernet/WLAN device. Lv0 also proudly proclaims itself as the “Cell OS Bootloader”. In older firmwares, 0.80-ish to 3.56, Lv0 initialized SPU isolation on one of the SPUs, then it loaded and decrypted asecure_loader. Asecure_loader or metldr then decrypts the isolated loader, in this case, lv1ldr, then lv1ldr decrypts lv1.self. In 3.60 this changed. Lv0 now has all of the loaders integrated into it as one large fat binary. All the keys one needs such as Public ECDSA key/AES CBC key and Initialization Vector and ECDSA curve type are in there. Just go ahead and grab them if you can get the ldrs out of the binary.

So, unless you can decrypt Lv0, no 3.60 “CFW” for you . Is there any need for it anyway?


Mathieulh also has some facts to clarify about LV0

Originally posted by another user
1. lv0 isn’t a loader it’s a ppu binary

2. Lv0 isn’t encrypted per console and can be updated with the rest of the coreos

3. Lv0 is decrypted by the bootloader, there is no such thing as a lv0ldr.

4. The bootloader keys cannot be updated/modified on EXISTING hardware

5. lv0.2 is NOT a binary, it’s a new metadata for lv0 which is to be decrypted and verified by a new bootloader (which is to be available on future ps3s), it is NOT used by the current bootloader (and thus in current playstation 3 consoles)


But wait, messing with this thing could lead to the YLOD tragedy, unless you have those expensive NOR flasher you might want to proceed, and that’s according to rms again.

Originally posted by another user
Lv0 also does some more interesting stuff such as SPU mailbox handling, and eEID integrity checks. Lv0 also used to check for QA flag and proper token, that is now in a spu isolated self in Core OS. Now, if you did tamper with eEID, lv0 will panic out, and your console will then “YLOD”, and you’d need a flasher for your PS3 to recover


There you go, with all the information available out there i just wonder why didn’t anyone found the solution to the exploit that Mathieulh (and maybe some people we didn’t know) discovered weeks ago. Maybe instead of bitching why the guy did not release anything, try listening to what he said this time.


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The following 20 users say thank you to kyskidz for this useful post:

Arman M., basser1, chickensamw1993, cKyOne, djfatpickle, emersons35, gunhead88, jakeowns, juko18, khalids19, MajorPSP156, mrbonno, munirmaj, Press ►, PsYcHoSiS, Ryan_ward1, shaunyovls25, theycallmeryan, xRafiq-, yaro
03-29-2011, 10:50 PM #20
Brian235026
< ^ > < ^ >
so basically saying we mite have a hack possible at 3.60 now or sometime soon? if <3.55
03-30-2011, 03:12 AM #21
would this help to get keys ?
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03-30-2011, 05:04 AM #22
Originally posted by cKyOne View Post
he did all the dirty work imo, now it's just a matter of days/weeks that a CFW comes through. I have hopes that ppl look past all the troling and flaming and actually start doing something.


instead of people having to look thru all the trolling why dont people just quit being dicks to each other because i know most of the shit said on this site wouldnt get said if people were actually face to face with the person their trolling

The following 2 users say thank you to PS3 Prodigy for this useful post:

kyskidz, TEXAS24_ReStEr
03-30-2011, 05:25 AM #23
MateoGodlike
Who’s Jim Erased?
Why doesnt he just give us the exploit?
Why does he make life difficult for millions of waiting users?
Why is playing cat and mouse with the PS3 Users?
03-30-2011, 11:17 AM #24
forcer911
Space Ninja
i knew that there will be never jailbreaks anymore :FU:
03-30-2011, 11:34 AM #25
TopGun007LTK
Do a barrel roll!
Originally posted by MateoGodlike View Post
Why doesnt he just give us the exploit?
Why does he make life difficult for millions of waiting users?
Why is playing cat and mouse with the PS3 Users?


Maybe he's less likely to get sued if he never releases a CFW?
03-30-2011, 11:51 AM #26
mart2010
Do a barrel roll!
Originally posted by MateoGodlike View Post
Why doesnt he just give us the exploit?
Why does he make life difficult for millions of waiting users?
Why is playing cat and mouse with the PS3 Users?




How many people on here are there that constantly moan about there being no new CFW or access to PSN without actually adding anything to the scene.

I personally dont add much to the scene but at least I got the good manners to stay patient and have a bit of hope and wait. Theres a lot of people doing a lot of decent unpaid work for the scene and deserve the respect of the decisions they make if they put in the hours.
03-30-2011, 03:19 PM #27
Originally posted by TopGun007LTK View Post
Maybe he's less likely to get sued if he never releases a CFW?


no the games a boggy nobody else will get sued no matter what they do to the ps3 is hacked and thats it :rolleyes:
03-30-2011, 03:41 PM #28
MateoGodlike
Who’s Jim Erased?
Originally posted by mart2010 View Post
How many people on here are there that constantly moan about there being no new CFW or access to PSN without actually adding anything to the scene.

I personally dont add much to the scene but at least I got the good manners to stay patient and have a bit of hope and wait. Theres a lot of people doing a lot of decent unpaid work for the scene and deserve the respect of the decisions they make if they put in the hours.


Not complaining. Just saying why hide it from us? Im fine with CFW 3.55 with 26 backups... Playing games to unlock everything

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