Regardless, this development is great news. But I don’t think any unofficial PS2 software at all works without some sort of entrypoint, whether that be a swap disk, modchip, modified memory card, or disc burned on official equipment or whatever equipment pirates and swap disk manufacturers use to make their discs. Was it supposed to be implied that FreeMCBoot had it’s own entrypoint to install? I mean, I assume that if you copied the necessary files onto a memory card using some memory card to USB adapter, it would work just fine. The initial installation on my first memory card was done using a swap disk on a PS2 Slim, and that memory card could and still can install FreeMCBoot on any other memory card plugged into the same PS2. I personally it tested on multiple slims and one fat. I actually didn’t know that it had any issues with any later slim models. The FreeMCBoot loader and installer works on any console you can plug a memory card into, AFAIK. Yeah, I’m not sure what’s meant that it doesn’t work on slim consoles. Again, these are for PAL consoles Download Yabasic exploit and tools The Demo discs with Yabasic can easily be found on Ebay for about $10. Where to find the Demos Discs with Yabasic On the cons of this hack is the fact that Yabasic was only ever released on PAL consoles, meaning if you’re on NTSC you’re probably out of luck for now. (FreeMcBoot is not working* on recent slim consoles, and needs an entry point to be initially installed on a memory card) It can therefore either be used as an entry point for the FreeMcBoot loader, or as the starting point for other developments to hack Slim consoles. The hacker outlines the benefits of his exploit as follows: it runs on all consoles, including the latest Slim models.

It’s reasonably easy to understand since the PS2 did not have all of the modern security mechanisms that exist on modern consoles. The Yabasic vulnerabilities involved are “old school” buffer/integer overflows that Cturt describes in a detailed writeup. CTurt has written a tool that lets one convert a payload into a matching Yabasic piece of code that you load through Yabasic. The Yabasic exploit relies on some vulnerabilities in the Yabasic interpreter. If you own a PS2 that you bought new in Europe, it is likely you have one of those Demo discs, and that you can run Yabasic. The released exploit leverages Yabasic, a BASIC interpreter that ship with the PS2 on Demo discs, some of which were directly released with new consoles in the PAL region.

It’s also compatible with Slim consoles, which is not the case* of the popular FreeMcboot exploit. Not so many people might still be interested in hacking the almost-20-year old console, but this kind of release is always interesting, at least from the technical aspect. Hacker CTurt, known for the very first publicly disclosed PS4 kernel exploit back in 2016, dropped a new exploit on the scene yesterday.

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