The PS4 might get some attention again. After the last few weeks, where we saw multiple Homebrew Releases - such as a updated Linux Distribution for your PS4, various Homebrew Games for your PS4, Emulators for playing older Classics on your PS4 and other useful Homebrew Applications, which makes your PS4 more useful for you - today, Developer @SpecterDev released a new WebKit Exploit for a newer System Firmware, namely for System Firmware 6.20. Although this Exploit isn't a complete Kernel Exploit together with the fact that this Remote Code Execution Exploit has been already patched by Sony on the newest System Firmware 6.50 released a few days ago, it is still a useful method to tinker more with this specific System Firmware, as Developer @SpecterDev describes it with his own words, which you can see down below. This can be especially useful for Developers, who wants to tinker with older System Firmwares as well, such as for System Firmware 5.55 for instance. Maybe we can see a newer full Kernel Exploit for a newer System Firmware released sooner or later.
PS4 6.20 WebKit Code Execution PoC
This repo contains a proof-of-concept (PoC) RCE exploit targeting the PlayStation 4 on firmware 6.20 leveraging CVE-2018-4441. The exploit first establishes an arbitrary read/write primitive as well as an arbitrary object address leak in wkexploit.js. It will then setup a framework to run ROP chains in index.html and by default will provide two hyperlinks to run test ROP chains - one for running the sys_getpid() syscall, and the other for running the sys_getuid() syscall to get the PID and user ID of the process respectively.
Each file contains a comment at the top giving a brief explanation of what the file contains and how the exploit works. Credit for the bug discovery is to lokihardt from Google Project Zero (p0). The bug report can be found here.
Note: It's been patched in the 6.50 firmware update.
Files - Files in order by name alphabetically;
- index.html - Contains post-exploit code, going from arb. R/W -> code execution.
- rop.js - Contains a framework for ROP chains.
- syscalls.js - Contains an (incomplete) list of system calls to use for post-exploit stuff.
- wkexploit.js - Contains the heart of the WebKit exploit.
- This vulnerability was patched in 6.50 firmware!
- This only gives you code execution in userland. This is not a jailbreak nor a kernel exploit, it is only the first half.
- This exploit targets firmware 6.20. It should work on lower firmwares however the gadgets will need to be ported, and the p.launchchain() method for code execution may need to be swapped out.
- In my tests the exploit as-is is pretty stable, but it can become less stable if you add a lot of objects and such into the exploit. This is part of the reason why syscalls.js contains only a small number of system calls.
Setup a web-server hosting these files on localhost using xampp or any other program of your choosing. Additionally, you could host it on a server. You can access it on the PS4 by either;
- Fake DNS spoofing to redirect the manual page to the exploit page, or
- Using the web browser to navigate to the exploit page (not always possible).
- I wrote the exploit however I did not find the vulnerability, as mentioned above the bug (CVE-2018-4441) was found by lokihardt from Google Project Zero (p0) and was disclosed via the Chromium public bug tracker.
- Chromium Bug Report - The Vulnerability.
- lokihardt - The vulnerability
- st4rk - Help with the exploit
- qwertyoruiop - WebKit School
- saelo - Phrack paper
Twitter: @SpecterDev (7th March 2019 - 8:29 pm) --> https://twitter.com/SpecterDev/status/1103739416554594304
Twitter: @SpecterDev (8th March 2019 - 7:26 pm) --> https://twitter.com/SpecterDev/status/1104085876831735808
PS4 PS4 6.20 WebKit Exploit Released by @SpecterDev (Patched for System Firmware 6.50)
By Roxanne on Mar 9, 2019 at 7:47 AM
The Power Supply (vol. 05): A chat with (PS Vita Developer) RinnegatamanteWell it's that time again as we have another talented developer featured in The Power Supply (A developer Interview Series brought to you by PSX-Place). So far you have seen us explore various talents from the PS3 & PS4 in the first four editions (view the complete collection of interview here, some great reads and insight from some of the best), so this time around in vol.5 of the series we wanted to expand on another PlayStation Platform and we thought it was time for a PS Vita inclusions. So, with so many great candidates to approach we wanted to explore a bit about homebrew development and this developer is someone whom has developed a few projects on the platform (okay alot of projects ) That's right we have the talented developer known as Rinnganmante who has been a huge contributor to the PS Vita Community. In our chat we posed various development questions / future intentions along with some insight on various projects in this discussion, so like our previous interview's your bound to learn something new.Continue reading
[UPDATE 4] PS3 Toolset by bguerville: A powerful collection of tools fueled by new PS3 exploitUpdate (4) Now supporting 4.86 Fully & Issue fixed with NAND console's in rare situations
You may recall a recent article revealing a few exclusive screenshots of bguerville's latest project, now the time has come to introduce the next evolution in PS3 Jailbreaking solutions. The PlayStation 3 Toolset by @bguerville is a new suite of tools, built upon a new PS3 exploitation framework & fueled by a new exploit discovered on the PS3 by the developer. The new exploit (and the toolset project as a whole) is compatible with all PS3 models running 4.82 - 4.86 OFW/HFW/CFW
While ps3xploit team member's @habib continued research and development of PS3HEN for nonCFW models with assistance from @esc0rtd3w, @bguerville meanwhile was working on his own research and developing other tools and exploits as you will see with this new PlayStation 3 Toolset, which thorough testing was conducted by @esc0rtd3w (whom we recently interviewed). All the team of talented devs have done some amazing work in the scene in recent years with all the PS3Xploit projects and that trend continues with this release.
The PS3 toolset is a project that @bguerville has been working on for some time,
the developer gave us a brief timeline of events since the Ps3Xploit Tools 2.0 framework (flash writer and dumper(s)) that led to this new release (see the timeline section).Continue reading
[UPDATE-4.86] PS3HEN v3.0.1 - View latest changes to the PS3 Exploit for SuperSlims & nonCFW models4.86.1 HFW post by @Joonie
UPDATE (04-02-2020): Version 3.0.1 has been released.
See below for additional Details!
See also: The Great PS3 HEN All in One (AIO) Guide
Here is v3 of the latest PS3 Hack to hit the PS3 Scene with the recent release of PS3HEN. This exploit for nonCFW console's provides homebrew support and a number of Custom Firmware intangibles for those console that can not install a traditional CFW, with those being lat production PS3 Slim models and all of the SuperSlim Consoles. While this is a tremendous release and breakthrough the information behind PS3HEN has been lacking and has served more questions then answers that could be provided. This is due in the way this was delivered and presented. We paused the reporting this on the frontpage until we were pleased with the documentation. So we took it upon ourselves to get the ball rolling on a new PS3HEN F.A.Q. detailing various aspects and info that will be useful for PS3HEN user's. Also we have started forming the PS3HEN Homebrew & Plugin Compatibility Chart
Version 3.x.x has come with a number of new additions for a better experience. Some of the new changes provide full PS3ISO Support ,As well as full BDISO and DVDISO support has been added, plus new improvements to PS3HEN's stabiliContinue reading
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