After teasing the exploit recently on Discord, SpecterDev has officially released his kernel exploit for PS4 firmware version 4.05.

Official announcement

Hope everyone had a Merry Christmas! Here's the 4.05 kernel exploit, fully implemented. Enjoy! Write-up coming soon! https://t.co/MQR0lzCu9Y

— Specter (@SpecterDev) December 27, 2017

Code:
https://github.com/Cryptogenic/PS4-4.05-Kernel-Exploit

TLDNR (From GitHub):

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 9020 and will execute them upon receival.

In case you want to get a PS4 <=4.05
https://gbatemp.net/threads/suggestion-ps4-bundles-firmware-list.487337/

UPDATE:

after @SpecterDev released his exploit, i'll prepare stuff within a couple of days, someone need to backport it from 4.55 to 4.05, not hard to do. not sure if it will be a write-up or just snippets of code, let's see

— Aleksei Kulaev (@flat_z) December 27, 2017

 

[skitts]

The first time I put my ps4 firmware 3.55 on the net and it downloaded the update I went into notification and deleted the update from there, I didn't know other people were having problems getting rid of it

 

[Deleted User]

yes skitts after I think 4.0 they stopped allowing that through the ps4 gui. I was like huh? Nagged me all these months as I waited patiently on 4.01. I was scared to play my ps4. I was always worried I would accidentally press update. Now with full ftp access those days are behind us....

 

[Ronhero]

What does that mean?

Not sure but a dev said it may be important. You lose it when you connect to the internet or update the console

 

[PotatisKnug]

4.5x? Anbody? No?

 

[yardie]

4.5x? Anbody? No?

Yes

 

[cracker]

Haven't even booted my PS4 in 2 years? Been waiting for an exploit like this since the days I got it! Hopefully a PSN workaround will be made so I can get my purchased games off there and back them up (better than bastardized pkgs).

 

[nikeymikey]

yes skitts after I think 4.0 they stopped allowing that through the ps4 gui. I was like huh? Nagged me all these months as I waited patiently on 4.01. I was scared to play my ps4. I was always worried I would accidentally press update. Now with full ftp access those days are behind us....

Is there a login and password for the ftp access??
I cannot get filezilla to connect to the ps4 at all, the modded LAN host will not run for me either so im using the latest version from Al-Azif (0.3.1). sending the hello.bin but no joy connecting

 

[Deleted User]

port is 1337 I am sorry but to my knowledge you cannot use the al azif file but I have not checked if he recently updated to allow full access in latest version to my knowledge he had not and this is an ability given by the mod. Please do watch my vid carefully as I explain that despite not getting a proper load page but when i loaded netcat payload was successful hope this helps ....

 

[nikeymikey]

port is 1337 I am sorry but to my knowledge you cannot use the al azif file but I have not checked if he recently updated to allow full access in latest version to my knowledge he had not and this is an ability given by the mod. Please do watch my vid carefully as I explain that despite not getting a proper load page but when i loaded netcat payload was successful hope this helps ....

The modded lan host will not run on my pc, just flashes up and then closes straight away... oh well guess I have to wait for updates

 

[Deleted User]

interesting you have python installed yes? If one works no reason why the mod should not load they both use python. When I check al azif's files it does appear he is incorporating the mod. You tried port 1337? What is ftp client saying when you try to connect?

 

[Al-Azif]

The modded lan host will not run on my pc, just flashes up and then closes straight away... oh well guess I have to wait for updates

It's displaying an error and quiting, there's no pause in there. Run it though the command line to get the error. I'll work on the closing method for people who run it though double clicking.

 

[Missing Number]

the day after i update....

 

[Deleted User]

hey Al btw thanks again for all your work. I dl new version to diff folder and it no work but my old version does??

 

[Al-Azif]

hey Al btw thanks again for all your work. I dl new version to diff folder and it no work but my old version does??

New version requires Python3 I would have started with Py3 but I didn't want to completely rewrite FakeDns at the time. Use v0.2.3 for Py2 support.

 

[Deleted User]

should have read fine print makes perfect sense thanks so much I see both 3.0 python and 3.0.1 will 3.0.1 cause issues?

 

[Al-Azif]

should have read fine print makes perfect sense thanks so much I see both 3.0 python and 3.0.1 will 3.0.1 cause issues?

The last version that will support Py2 is 0.2.3 every new release will be for Py3

 

[Deleted User]

thanks so much!

 

[thebuttonsstuck]

when we get ps4 emulator? thx fam and exzap

 

[nikeymikey]

It's displaying an error and quiting, there's no pause in there. Run it though the command line to get the error. I'll work on the closing method for people who run it though double clicking.

Did you make the modded version? Your latest version works perfectly I just can’t connect through ftp after sending the hello.bin payload..

 

[longlivebrazilusbloader]

the day after i update....

The 4.05 exploit had been in the works since October, when fail0verflow published their findings

You have nobody to blame but yourself. Everybody with half a brain stayed on <4.05 after the news.