Gaming PsP 3000, exploit found

[sconethief]

youtube (since embedded aint working )

GripShift has a buffer overflow vulnerability when loading savegames. The savegame contains the profile name which can be easily used to overwrite $ra. The savegame file is pretty big (25kB) so you have lots of space to put your code there. I wrote a simple blob of code to paint the framebuffer completely white (to just indicate that arbitrary code is running). The return address is located at offset 0xA9 in the file. In this poc it points to 0×08E4CD50 (which is only a few bytes after the return address), and the code starts at 0xCC in the file.

It was tested on 4.01M33-2 with US version of GripShift (ULUS10040), and psplink.prx, usbhostfs.prx and deemerh.prx loaded (also without psplink and usbhostfs). The decrypted savegame (sorry, couldn’t [be bothered to] get Shine’s savegame tool working so it’s in plaintext form) is in the SDDATA.BIN form which Hellcat’s Savegame-Deemer produces (thanks to him, if the program didn’t exist I wouldn’t have bothered with this). Just copy the ULUS10040SAVE00 directory to /PSP/SAVEPLAIN/ and run the game. EDIT: yeah, don’t forget to have Savegame-Deemer working, duh.

The original article found here

 

[KingAsix]

So we could have custom firmware soon

 

[Pizzaroo]

Already announced about 10 mins ago by someone else, sorry

 

[War]

Doesn't mean the PSP-3000 will be hacked though.

 

[DaMummy]

they also cracked the PS3 home game, but were never able to run a code apparently and no modchip is available to date

 

[xist]

Already announced about 10 mins ago by someone else, sorry

Whaddya mean 10 minutes ...You mean about 6 hours!

http://gbatemp.net/index.php?showtopic=127190