Updated: Hello World on the PS Vita!

Update:  Wololo has commented on this Hello world. Its using the PSP Emulator part of the PS Vita. So its not a Vita exploit as such. More of a PSP exploit running on the PS Vitas’s PSP emulator.

Japanese PSP scener Mamosuke announced today on his blog that he was able to confirm a “Hello World” running on the PS Vita through the embedded PSP emulator. The exploit was made by developer teck4, and most likely relies on one of our good buffer overflow friends. and for those who are wondering “is it real?”, my current answer is that I haven’t tried it yet, but knowing Mamosuke fairly well I can tell you it’s true.

Technically, the idea behind the hack is simple but brilliant: the PS Vita has a PSP emulator, and we have plenty of PSP game exploits lying around… can we assume they will work on the emulator? That’s what teck4 tried, and the answer is yes, so he managed to run unsigned code on the PS Vita.

For those who join this blog for the first time, basically how this works is that a special save data file is crafted for a specific game. When the game is asked to load the save data, through a flaw in the game code we manage to re-route the game into executing code that we wrote ourselves. That code is usually very simple, displaying a simple message (typically “hello world”, hence the name).

From there, what happened for the PSP was that we integrated these exploits into our homebrew loading tool, Half-byte Loader, which allows people to load more interesting homebrews such as emulators, etc…

Now this was quick, the PS Vita -Just released in Japan has apparently run a Hello World user mode homebrew! Yep running unsigned code and so soon. I know what your thinking a blurry crap photo and its saying FW 6.31 which is a PSP Firmware.

Explaination is its a 6.31 modified save game exploit to work on the PS Vita. A user mode exploit. This all came from Japanese hacker teck4. This guy hasn’t released the code or the game details yet as he is planing to port a HBL for this. We will see. The screenshot below is some proof. But I could do that myself with a screen dump from my PSP and then load it on the PSV. Here’s hoping some video proof will be released soon. That is much clearer.

From Mamosuke:

[UPDATE: my additional comment in english]
I read lot’s of article around the world about this Hello World on Vita and I found so many “this is fake,right?”…No, this is not a fake. But you have to think this is inevitable result because of emulation.

And you can find “Hello World for PSP Firmware 6.31 by Teck4″ and say “Why 6.31?”

Teck4 have some savegame exploits. These were found when PSP lastest firmware was 6.31. He tried to run his unsigned code without any modification..including the letter “6.31″

That’s why “6.31″ was displayed in his Hello World.

His exploit use buffer overflow of the system and, you know, what we call “Usemode exploit”, So do not expect kernel hacking from it.

I know his exploit and I know he is not a faker. That’s real. But I think this shows us that emulation tech on vita is brilliant, NOT “PS Vita is hackable!”

Source: Game Gaz

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