Hacker Qwertyoruiop just dropped the full code for a 4.55 PS4 Kernel exploit. There’s a tiny catch (see below), but this is probably the best piece of news in a long time for people who couldn’t get on the 4.05 gravy train so far.

Please note that as a 4.05 owner, and given that this is not a fully operational implementation at this point, I have not tested this yet. Qwertyoruiop’s reputation on the PS4 scene and other devices is however enough at this point to confirm this is the real thing.

The kernel exploit works up to firmware 4.55 included, however the kernel exploit needs a usermode entry point. In the hacker’s current release, that entry point is the Webkit exploit he released for firmware 4.07 a while ago.

In other words: The kernel exploit technically works up to 4.55 included, but the associated user exploit is compatible only up to 4.07 for now, so people on firmwares 4.06 and 4.07 should be able to enjoy this release pretty quickly, while 4.50 and 4.55 owners will have to wait until another usermode exploit is released. Which could happen fast.

In theory, usermode exploits are easier to come by than kernel exploit, so there is a strong probability that someone will release a usermode exploit to “complete” this exploit on firmware 4.55.

Until then, people on firmware 4.06 and 4.07 should be able to try their luck on the exploit. The release by Qwertyoruiop is a text file though, so some work is required to get this to work: host this as a javascript on a website, embed it in the required html file, maybe associate it with the webkit exploit, etc… Not something everyone can do, but I do hope some of the devs in the scene will figure it out pretty quickly.

Stay tuned!

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A note if you’re on 4.05: You’re on the golden firmware for now. Stay there until the scene massively tells you otherwise.

Download PS4 4.55 Kernel Exploit

The source of the exploit can be found here.

Source: Qwertyoruiop