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Video: PSP SaveGame Exploit By Zer01ne on PS Vita Demo


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131w ago - Following up on the previous PSP SaveGame exploit news, this weekend PlayStation Vita developer Zer01ne has Tweeted news of a new PSP game exploit that works on Firmware 6.60 and has also been confirmed working with Sony's new PS Vita handheld console as well!

Below is a video of it in action, and to quote from his [Register or Login to view links] updates:

New PSP Game exploit found (This time the game was not already used).

No plan for any HBL portage (We will see). [Register or Login to view links]

I have broken my right arm, the VHBL portage will take time. I will try to do something on with my left arm.

The exploit works on Vita.. See video:







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 42 Comments - Go to Forum Thread »

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NTA's Avatar
#42 - NTA - 129w ago
Where did you get it for such an epic price?

imtoodvs's Avatar
#41 - imtoodvs - 129w ago
i just put my vita back it the box a few days ago & bought a psp go for $25 bucks. looks like a waiting game now

NTA's Avatar
#40 - NTA - 129w ago
Speaking of funny names, I was browsing psn stuff and I just noticed the greek gods in the links lol. I've only seen poseidon, ares, and zeus so far

PS3 News's Avatar
#39 - PS3 News - 129w ago
Following up on his previous PS Vita developments, today PlayStation Vita hacker Davee reports that he has discovered Sony's sceKermit driver which is a communication interface for the included PSP emulator.

To quote from his blog (linked above): "Turns out he's not just a green frog! So, I've been throwing this word around recently and it's probably about time I explain. Kermit, either a protocol or perhaps a funny name (see KIRK/SPOCK) is a communication interface for the PSP emu. Specifically it allows the PSP to talk to the host.

Now, I can tell there aren't as many developers here, so I'll try to simplify for the curious minds but this stuff is pretty complicated. I'll only explain the API in detail as the lower level still need a little bit of clearing up, but here goes.

Ok, Kermit is here so that the emu can communicate to the host to share resources and other vitality. Perhaps the primary reason is that of hardware; the PSP emu is excluded from many hardware devices. So kermit sets in and allows the system to talk to the vita in order to use the hardware. Blabbering aside, this is the hardware that kermit seems to be responsible for:

  • Memory stick
  • Flash filesystem
  • DMA
  • LCD
  • GE
  • IDStorage
  • Audio
  • Camera
  • Power Control
  • USB
  • OSK
  • WLAN
  • RTC
  • ... more

Interestingly, the kermit communication isn't used for headphone remote or controller inputs.

In order to understand how kermit functions, it's important to explore the usage of the API. Starting with the power house tool:

[Register or Login to view code]

This function is the send command function. It accepts a kermit packet initialised to minimum 64 bytes (no args need to be filled) a command mode which describes the set of commands, cmd: the actual command; the number of args following the 16 byte packet header. It also allows you to pass a boolean value to allow callbacks when waiting for completion and a 64 bit response.

What is important to note is that the packet arguements are 64-bit wide (not 32) and little endian encoded. There is a maximum of 13 arguements that can be passed to the host.

Sometimes, it is needed to send more than the 13 arguements worth of data. This is where kermit provides an API for memory. Shown below:

[Register or Login to view code]

These function provide the fundamentals for data transmission to the host. sceKermitMemory_driver_AAF047AC is the staple command. It accepts a packet BEFORE transmission to host with the amount of args, a pointer to the input/output buffer and an indicator for the mode. This allows kermit to recieve the buffer of data when it processes the command, or have a place to output the data.

sceKermitMemory_driver_80E1240A and sceKermitMemory_driver_90B662D0 are the opposites of each other, providing input and output respectfully. This API is incredibly simple and is used to send multiple buffers to kermit prior and following a command.

These are pretty crap descriptions, but as you can see it's a very command and transfer sort of interface. You tell it you have data you want to give it, you signal it and then it tells you where it's put it.

[Register or Login to view links]

There is some source code describing in more codey ways. Also there are small reverses of functions used in the kermit. As you can see it works on a sort of circular queue of semaphores in the core. Have a "peek".

Thanks to Proxima + some1"

Finally, he also Tweeted the following: There is a bug in the vita. If you turn it upside down it zips the gsensor and runs xml format vita games. Really cool.

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DAZE's Avatar
#38 - DAZE - 130w ago
Is not a Vita Demo, the exploit is inside a PSP Game -___-

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