PS4: SpecterDev releases 4.05 Kernel Exploit

It’s finally here! 2 Months after Team Fail0verflow revealed the technical details of a Kernel Exploit for firmware 4.05, Developer SpecterDev released a functional implementation today.
The release is fresh and I haven’t taken the time to test it yet (plus, I’m on 4.01 right now and will need to update), but there’s no reason at this point to doubt this release. If you’re running a PS4 4.05, please give it a try and report in the comments.
Understand that this release, in its current state, might not be 100% user friendly. But, fingers crossed, this should open up the PS4 scene a little bit more, and hopefully new developments will make this very interesting.
Specifically, SpecterDev states:
In this project you will find a full implementation of the “namedobj” kernel exploit for the PlayStation 4 on 4.05. 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
9020and will execute them upon receival.
Credits
SpecterDev credits the following people for their contribution to the exploit (besides Fail0verflow):
- qwertyoruiopz
- Flatz
- CTurt
- Anonymous
Download and install PS4 4.05 Kernel Exploit
You can download the Files on SpecterDev’s github here.
Additionally, The hacker has released a sample payload to enable the Debug settings. you can find it here.
To run the exploit, you need to have a console on firmware 4.05. If you are below 4.05, you can update to 4.05 by finding the right update file online. If you are above 4.05, you cannot downgrade and this exploit will not work for you.
You’ll need to host the exploit files on a local server, and access the index.html file through Webkit on the PS4. Once the exploit runs successfully, the console will be listening for payloads on port 9020. You can send the payloads with command netcat from your computer.
I apologize as my explanation’s very rough for now. More as we dive into it ourselves!
Source: SpecterDev
Awesome news! Now the magic will happen.
I’m on 4.07 🙁 what a shame.
You can try to put it a non-formatted HDD. Maybe you can reinstall a lower firmware.
Personally I have a ps4 with 4.72 and if I put a non-formatted HDD I can install 4.71 or upper.
So try it. maybe you are lucky 😉
Didnt know that bud i previously had 4.05 before i updated. How does it it work when i put a hard drive in will it ask me which version to install?
Remove the actual hdd, pu in another one with non-formatted system or windows or else non-ps4 formatted, reboot twice if I remember well and then look at the message “please insert a usb with firmware x.xx or upper” (something similar)
Can you share the link of this tutorial? Because bring hope to people with an updated firmware
I am also on 4.07. Someone will port it.
Not a case of porting – if a kernel exploit isn’t found for 4.07 – we will have to wait until qwertyoruiopz exploits for 4.50-4.55/5.00-5.01 are released (or IF) – or until a kernel exploit for 4.07 is found
I have a PS4 on 1.75. Is there any reason to keep it at 1.75? Or is it pointless and I should go straight to 4.05?
I would go straight to 4.05
Wait for this to pan out into something first I would say. Jumping straight to 4.05 when it’s simple release that isn’t terribly useful yet? Not highly recommended.
don’t do it… better wait until the full jailbreak get released…
u still can’t play pirated games with it…
yup 1.76 is best since this release: “does not contain any code related to defeating anti-piracy mechanisms” – not buyin PS4 🙁
i think you should go for 5.03 instead..more promising , qwerty going to release it also
go ahead update to 5.03
Keep your PS4 on the lowest possible firmware until something concrete is released on any of the previous. Don’t listen to people that say update. Better safe then sorry because you can’t revert updates.
I have a 1.76 ps4 as well, i am going to stay for a few more weeks on 1.76 and then move on, we should have better support on 4.05 from now on.
You should stay for a few more weeks and then move on, when everything you have on 1.76 is present on 4.05…
BOOOOOOOM! Now the scene can at last get some momentum
I have ps4 in 4.07.
Can I run payload please?
No, you can’t. Dummy
it ok, reddit say we can downgrade. I’m on 5.03
i wouldn’t trust what some guy on reddit says, it’s either a lie out of ignorance or someone who wants to profit from people’s credibility.
There is NO WAY for users to currently downgrade their consoles.
Yup, downgrading is 100% possible. Once that exploit is released reddit also said you’ll have the ability to load up the Xbox One OS on PS4 via USB giving you the ultimate dual boot machine! Exciting times.
cool
@Sombre better for you to learn to read before asking.
dang, any news on 4.07 ?
Is there known to be any private kernel exploits for 4.07?
I think 4,55 is hacked
Its a cool start, we appreciate your work SpecterDev, now we just wait and see who will rise to the challenge 🙂
im on 4.06 any chance, of it working or is this going to be updated for this version at some point?
Well seeing as it says 4.05 then no because a new kernal exploit needs to be found and released for the higher firmware.
where to find 4.05 firmware?
https://mega.nz/#!dVBUwJJb!AAAAAAAAAAAzog4L7iYMNQAAAAAAAAAAM6IOC-4mDDU
https://gbatemp.net/threads/ps4-firmware-collection.447573/
I have my ps4 on 3.55 i will upgrade to 4.05 and test it
I have a launch PS4, still untouched, and I’m not doing anything with it until I see that this will actually lead somewhere.
Works great 🙂
I have just an annoying message when I boot the PS4, it asks if I want to update to 5.03 ?
Is there a way to delete that file ?
Or do I need to wait for the release of a FTP server payload (like the one on 1.76) and directly delete the PUP ? Someone did it on 1.76 ? No risk ?
X2 had.the same prob however i had a New PS4 so im gona go 4 inizalisation AND give it a try! Any sugests?
I have a PS4 Pro on 3.70 that I haven’t touched waiting for something like this. Until it can do more I’ll wait.
I have battlefront bundle
Where is the version number please
I wonder will this trigger Pizza boy Querty to release something. I hope he does and no one cares anymore
Schwing !!!
I make a big mistake and deleted my psn profile (i didn’t want it associated with hacks and had no plans to go on psn with my jailbroken ps4). This made things harder for me as I did not realize this would break web browser. In hindsight this was a good thing. This is experience other user will have with new ps4 out the box. I hope this helps others….
please allow this video is helpful for others.
THE WAIT IS FINALLY OVER, LET THE GAMES BEGIN!
Someone did see the new failoverflow news on their website?
What is happening now just before newyear? 🙂
If anyone would like to use this exploit without hosting the files themselves, I have taken the liberty to put them on my website for anyone to mess around with much like I did with ps3xploit
http://redthetrainer.com/ps4/kexploit/
Good job Red!!
thanks red! I used ur site twice for PS3xploit 😀 very conienient
And What now? I have read about 5.01 there is a possible way there Will be a jb for to? Is this correct
My PS4 is on 4.00 and I’ve kept it like this, unplugged for a little more than a year. Just turned it on to confirm and it says it has an update downloaded and ready to install. Can I get rid of that update, so I can get the 4.05 firmware? I’m afraid the one it has downloaded and ready to install is above 4.05 :/
try formating your ps3. should work.
i did it for vita.
damn i mean ps4. still stuck in ps3 era
Alright thanks will try that.
Format = Unverified PSN accounts = all downloaded content will be lost + lots of messages etc … ?
I’ve seen today a new FTP Server Payload: https://twitter.com/ImMrNiato/status/946172621242208263
Is there a way to find that downloaded 5.03 PUP file ? And if that file is in a writable directory (“update”?), can we just delete that file ? No risk of brick ?
Take care dont install that downloaded FW, that’s the last 5.03 FW !!!
You have to boot in safe mode and install the 4.05 FW from an USB HD
Good news.. I got 1.76 console as well. If I update my PS4 to 4.05. Later.. other hacker release CFW for PS4 (like ps3 3.55). But require is 1.76 than I dead.. XD
o_o
finally, devs giving a bone to the people to tinker… now someone do a simple backup loader thx in advance xd
How many panties will this get me into?
0
Depends really.
Don’t know, what size are you?
With that avatar I’m guessing you know Mary Palm quite well. XD
it still lame and useless.Ps4 scene is lame
what is this meaning guys
Tried hdd trick on my 4.07 and it didn;t work, it asks for 4.07 or upper FW 🙁
hello guys I’m on the 3.55 now for many years and I would not make the mistake to upgrade to 4.05 and then find myself a news that there is something more huge on ofw less than 4.05, so my questions are:
1-update and ambitious about this exploit? What can I really do?
2-can I install the pkg demo games? as ?
3- I read that there is a fake section saved what is it? can I put a ps4 save for another account on mine? .
Whats the exploit good for? Can you execute homebrews, Game files etc.?
Oh well, here’s hoping something on 5.00+ will come out…waited too much around all the typical drama to stay on a lower firmware.
https://www.reddit.com/r/ps4homebrew/comments/7mdnxa/ps4_405_kernel_exploit_implementation/drt8tdn/
The above link contain steps to run the exploit on your system.
Now that a 4.05 exploit is out in the wild and “slightly” more accessible to the development community, if the 4.55 exploit has been fixed in current firmware, is there any reason for the devs to hold onto that exploit if its already been patched by sony? It would open the door to potentially more developers who have upgraded past 4.05 expanding the community more, without flooding it by releasing a 5.X that the world could use. So the question is was the 4.55 exploit patched already and what are the good reasons to hold onto it at this point?
Good question…
Works, can use debug_settings.bin payload to gain access to Debug Menu, after the kernel exploit. Now we wait for what we’ve all been waiting for.