Developer AlexZzZ just released a proof of concept exploit for PS4 Firmware 5.01. The exploit has been independently confirmed by mathieulh to also work on firmware 5.05. Combined with Qwertyoruiop’s release of a Kernel exploit for 4.55 earlier today, this means PS4 Firmware 4.55 should now be fully exploitable.

According to the Readme, this exploit relies on a fairly recent Webkit vulnerability, CVE-2017-7005, which was already used on the Nintendo Switch by Team Reswitched. (It is likely the PS4 exploit was ported from the Switch)

A lot happened in the past 24h in the PS4 scene, and we need a bit of a recap:

Typically, in order to get a functional Jailbreak of the console, one needs two exploits: a usermode exploit which gives you limited code execution control within a specific process (a favorite target is Webkit), followed by some privilege escalation to get full access to the system (the kernel exploit).

Qwertyoruiop‘s kernel exploit is compatible up to firmware 4.55 included. However, he did not provide a usermode exploit to go with it (except he had in the past already released a webkit exploit compatible up to 4.07).

With Alexzzz’s release of a webkit exploit up to firmware 5.05, we now theoretically get full access up to firmware 4.55.

Download:
PS4 5.05 Webkit Exploit Proof of Concept
https://www.thetechgame.com/Downloads/id=43477/ps4-505-webkit-exploit-proof-of-concept.html

Posted: Feb 27, 2018 11:23 pm
Last Updated: Feb 27, 2018 11:28 pm
Related Forum: PlayStation Forum

Source: http://wololo.net/2018/02/27/ps4-exploit-5-05-webkit-exploit-released-4-55-functional-jailbreak-probably-matter-days/