[Mashiro]

The PS4 jailbreak scene is getting active and slowly gaining traction again!

A few days ago the legend of the PS4 jailbreak scene developers the fl0w has released a kernel exploit that is present in PlayStation 4 firmware up to version 7.02. Here is the tweet that kicked it all up again. This new kernel exploit is the first news in the PS4 jailbreak scene since around two years. The last big thing was the kernel exploit for firmware 5.05/5.07 (which til today is still the most stable and widely spread exploit in the PS4 jailbreak scene). After the firmware 5.05/5.07 the scene was kind of silent and depressed. Many rumors came up regarding that developers have already exploits for higher firmware versions but won't release them for reason X. And a lot of negative vibes have been coming up against the developers. The scene was pronounced "dead" by its own members and has turned into a toxic community.

The new kernel exploit that works til firmware version 7.02 is based on a security hole inside the IPv6 stack of the BSD kernel used in the PlayStation 4 OS (it is based on FreeBSD after all). Sadly the kernel exploit alone cannot be used to jailbreak a PlayStation 4 console! You need a entry point at userland (the normal user level that you have access too when using the PS4). A entry point in a lot of cases so far has been the PS4 web browser. The web browser is based on Webkit and the Webkit browser engine also has holes in it. The latest webkit exploit that is available is on PS4 firmware 6.72. What does that mean? Well, it means that while the kernel exploit is good til version 7.02 it is not going to be available for that firmware version until a entry point in that firmware has been found.

And that also means that the next fully exploited firmware version will be 6.72. FW 6.72 has a webkit exploit and can use the 7.02 kernel exploit to achieve a full jailbreak. Currently a full exploit chain is in development. A full exploit chain is needed for a user to be able to run the webkit exploit that injects a payload into the kernel that executes the kernel exploit to jailbreak the console. This is not as easy as it sounds. This whole process is not really stable at the beginning. Developers are looking for ways to make the whole process more stable and easy to handle. For the FW 5.05/5.07 exploit the process needed a long time to get as stable as it is. Currently HEN 2.1.1 (the exploit chain Homebrew Enabler) is the most stable way of jailbreaking a PS4 with FW 5.05/5.07. It took a lot of time to get as perfected as it is now. Old versions have many kernel panics when being run (this is when it is unstable and will cause a kernel panic that leads to the PS4 crashing).

I own a original PS4 with FW 5.05 and HEN 2.1.1 cached offline. It is a great fun console made possible by jailbreaking and homebrew. Hopefully a full exploit chain for FW 6.72 will come soon .


More about the news:
- http://wololo.net/2020/07/07/playstation...pider-man/
- http://wololo.net/2020/07/10/ps4-specter...mentation/

[ikk157]

The PS4 jailbreak scene is getting active and slowly gaining traction again!

A few days ago the legend of the PS4 jailbreak scene developers the fl0w has released a kernel exploit that is present in PlayStation 4 firmware up to version 7.02. Here is the tweet that kicked it all up again. This new kernel exploit is the first news in the PS4 jailbreak scene since around two years. The last big thing was the kernel exploit for firmware 5.05/5.07 (which til today is still the most stable and widely spread exploit in the PS4 jailbreak scene). After the firmware 5.05/5.07 the scene was kind of silent and depressed. Many rumors came up regarding that developers have already exploits for higher firmware versions but won't release them for reason X. And a lot of negative vibes have been coming up against the developers. The scene was pronounced "dead" by its own members and has turned into a toxic community.

The new kernel exploit that works til firmware version 7.02 is based on a security hole inside the IPv6 stack of the BSD kernel used in the PlayStation 4 OS (it is based on FreeBSD after all). Sadly the kernel exploit alone cannot be used to jailbreak a PlayStation 4 console! You need a entry point at userland (the normal user level that you have access too when using the PS4). A entry point in a lot of cases so far has been the PS4 web browser. The web browser is based on Webkit and the Webkit browser engine also has holes in it. The latest webkit exploit that is available is on PS4 firmware 6.72. What does that mean? Well, it means that while the kernel exploit is good til version 7.02 it is not going to be available for that firmware version until a entry point in that firmware has been found.

And that also means that the next fully exploited firmware version will be 6.72. FW 6.72 has a webkit exploit and can use the 7.02 kernel exploit to achieve a full jailbreak. Currently a full exploit chain is in development. A full exploit chain is needed for a user to be able to run the webkit exploit that injects a payload into the kernel that executes the kernel exploit to jailbreak the console. This is not as easy as it sounds. This whole process is not really stable at the beginning. Developers are looking for ways to make the whole process more stable and easy to handle. For the FW 5.05/5.07 exploit the process needed a long time to get as stable as it is. Currently HEN 2.1.1 (the exploit chain Homebrew Enabler) is the most stable way of jailbreaking a PS4 with FW 5.05/5.07. It took a lot of time to get as perfected as it is now. Old versions have many kernel panics when being run (this is when it is unstable and will cause a kernel panic that leads to the PS4 crashing).

I own a original PS4 with FW 5.05 and HEN 2.1.1 cached offline. It is a great fun console made possible by jailbreaking and homebrew. Hopefully a full exploit chain for FW 6.72 will come soon .


More about the news:
- http://wololo.net/2020/07/07/playstation...pider-man/
- http://wololo.net/2020/07/10/ps4-specter...mentation/

There are several issues with this exploit (and pretty much all PS4 Jailbreaks combined):

1) First and foremost, we’re already at version 7.51, so the people being within the jailbreakable versions won’t really be a lot. Heck, even I’m running the latest version on my PS4.

2) Even though Sony (now renamed Sony Group) tries hard to patch these, they still have one last measure that makes Jailbreaking the PS4 firmware unattractive. And that is if you’re not on the latest version of the OS, you won’t be able to use any online features in the PS4, from online multiplayer to even using your web browser. So sticking to an old firmware for a jailbreak isn’t very reasonable. And even if the latest firmware becomes jailbreakable, you only have a limited amount of time before Sony releases a new one patching the exploit.

This is exactly why Jailbreaking the PS4 never really picked up... it doesn’t make sense to lose all the internet-based features just for the sake of jailbreaking. Not to mention that you can’t really downgrade the OS, which decreases your chances of being able to jailbreak.

[OldMeister]

i agree with @ikk157
on the ps3 it was much a lot easier to jailbreak by the way. ive done it on my ps3 but i never thought that they will release a jailbreak to ps4. also im not sure anyone will use it because of the reasons ikk157 said here before. also even if the fl0w found a security hole to make a jailbreak. the jailbreak has its own problems which are the reasons to why almost no one is jailbreak their playstation 4. by the way i also wonder if on ps5 jailbreak will ever be an option and what will be the benefits of the jailbreak

[Mashiro]

The first full exploit chain for firmware 6.72 has been released by sleirsgoevy on GitHub.

Repo: https://github.com/sleirsgoevy/ps4jb
Jailbreak Site:
- https://cbps.xyz/672/
- http://consolehax.com/ps4playground/
- https://darthsternie.net/datafiles/ps4/672/
- http://ps4exploits.darksoftware.xyz/index.html#6.72

A lot of the jailbreak payloads for firmware 5.05 have been updated to work on 6.72 including the FTP payload, a dumper payload to make backups of games and etc.

- https://github.com/Scene-Collective/ps4-.../tag/1.0.4
- https://github.com/Zer0xFF/PS4_db_rebuilder/issues/8

This is great news. The full exploit chain is in its early stages and is still very unstable though. It does however work. A lot of confirmations but all with different success rates due to the instability of it.

References:
- https://wololo.net/2020/07/17/ps4-6-72-j...eirsgoevy/
- https://wololo.net/2020/07/17/playstatio...5-for-now/


In addition to this the first game backups have already been published.
- Red.Dead.Redemption.2.PS4-DUPLEX
- DiRT.Rally.2.0.PS4-DUPLEX

[Mashiro]

A lot more great news in general about PS4 scene.

A lot of the new released games can be played on PlayStation 4 with firmware 5.05 through "backporting". The backport process modifies the firmware requirement version from any higher version to any necessary version (5.05 in that case). It doesn't always work for all games but some big AAA titles work. Games like Red Dead Redemption, Death Stranding, Resident Evil 2 and etc. Also some new games work on Firmware 5.05 out of the box.

Crazy things going on! I'm playing RDR 2 on my FW 5.05 PS4!


Reference:
- https://www.psxhax.com/threads/ps4-backp...ware.7565/
- https://www.youtube.com/watch?v=Zduif2xEVpM