If you own a PS4 on firmware 4.55 or below, rejoice! Developer SpecterDev has released a fully functional implementation of Qwertyoruiop’s 4.55 Kernel Exploit for the PS4. This is technically what you can consider as a full functional Jailbreak for PS4 4.55, but the payloads (the binaries that let you actually do cool stuff with your PS4 such as running homebrew or unlocking debug settings) still have to be ported to this firmware.

From the release Readme:

In this project you will find a full implementation of the “bpf” kernel exploit for the PlayStation 4 on 4.55. It will allow you to run arbitrary code as kernel, to allow jailbreaking and kernel-level modifications to the system. This release however, does not contain any code related to defeating anti-piracy mechanisms or running homebrew. This exploit does include a loader that listens for payloads on port 9020 and will execute them upon receival. This bug was discovered by qwertyoruiopz, and can be found hosted on his website here.

Interestingly, this release does not use the webkit exploit that was released yesterday as an entry point. Instead, SpecterDev states the hackers have used a different webkit exploit, that was patched by Sony in firmware 5.03.

SpecterDev credits Qwertyoriuop, Flatz, and anynomous for the release.

The Video below from user Andrew2007 shows the exploit in action:

Download and run PS4 4.55 Exploit

Important disclaimer: at the time of writing, payloads for the exploit have not been ported yet. In other words, although the exploit is fully functional, without the payloads you won’t be able to do much. If you’re too excited to wait, feel free to download and test the exploit following the instructions below, but most of you will prefer to wait until payloads such as PS4Hen are ported to this exploit, and user friendly tools such as ps4-exploit-host are updated for 4.55.

You can download the PS4 4.55 Exploit on SpecterDev’s github here. To run and host the exploit, you’ll want to use a tool such as ps4-exploit-host by Al-Azif. Please note that Al-Azif’s tool currently only contains the 4.05 exploit, so you will need to replace the contents of the “exploits” folder with the one for 4.55. Ps4-exploit-host has a detailed readme on how to run the exploits when you use that tool.

Alternatively, you can host the exploit yourself, or point your PS4’s browser to Qwertyoruiop’s hosted version at http://crack.bargains/455/.

Source: SpecterDev