PS4 Jailbreaker Qwertyoruiopz Confirms 4.50 Kernel Read / Write Access!

Last week PlayStation 4 developer qwertyoruiopz made available a JailbreakMe PS4 4.0x Webkit exploit for OFW 3.55 through 4.07, and over this weekend he received an invite from the Rebug Team while sharing progress updates leading to confirmation of a 0day 4.50 kernel exploit obtaining R/W (Read / Write) access!

His latest JailbreakMe PS4 4.0x (Mirror via @X41) update states the exploit supports all non-4.50 Firmware, but specifically targets 4.06 currently due to ROP gadgets being hardcoded.

To recap, those on PS4 1.76 Firmware were able to make use of the Kernel Exploit Source Code that progressed to a PS4 BadIRET PoC finally leading to the 1.76 PS4 Dlclose Exploit.

For those on PS4 Firmware 4.07 or below you can use the JailbreakMe PS4 4.0x Exploit to gain userland access, and users on System Software 4.50 can rest assured a 0day 4.50 kernel exploit also exists although there is no user-level entry point for 4.50 OFW reported publicly as of yet.

Also keep in mind PlayStation 4 scene developers may decide to hold off disclosing the 0day PS4 4.50 kernel exploit much like the PS4 Pro 0day Exploit that was confirmed by Mathieulh until Sony patches it, so for the moment as usual the safest bet may be holding off making any System Software updates.

Finally keep an eye on the PS4 Dev Working Exploits page for an updated listing of PlayStation 4 WebKit / Userland and Kernel Exploits.

Thanks to @DoxyMarket, @hyndrid, @joona70, @mcmrc1, @Plankton, @sealab, @vettegast, @X41 and @xxmcvapourxx for the tips in the PSXHAX Shoutbox!

 

[Thisismrnameles]

does it work on ps4 ofw 4.07???

Specterdev just confirmed it on 3.50 3.55 3.70 4.00 4.01 4.07

 

[shagon36]

Specterdev just confirmed it on 3.50 3.55 3.70 4.00 4.01 4.07

thx i will download without worry now

 

[gregdaleg]

I don't mean to be negative but don't expect any kernel exploit to be released at all. It most likely wont. I just want people to understand that fact.

 

[UmarDaBest559]

Best firmware for this jailbreak exploit to work on is 4.06 in my opinion most buggy in 4.x

 

[gammerfordement]

Nobody talks about releasing the kernel

 

[UmarDaBest559]

Nobody talks about releasing the kernel

Wait and time will leak everything

 

[myr3l]

NICE

 

[magas alitis12]

i found a crash on a ps4 with 4.50. if anyone want to try it HERE is the link. Click "Yes! I would like to crash my browser" then a WARNING will pop up just click "click here" then go at the bottom of the site and click "Element overflow" and wait few seconds until you see the message "there is not enough free system memory".

SORRY FOR MY BAD ENGLISH

 

[crckmc]

@magas alitis12 ryan is that your new account?

 

[xcjps]

yeah it's a shame to qwertyoruiopz, he's been bought. we won't see a kernel exploit soon unless some really crazy but not selfish developer will take this task to research what bugs 4.07 kernel has to make an exploit. so once again just talks. just think if you were to find a kernel exploit on your own, what would you do? tell sony and get huge premiums to keep it secret or spread it wide and get sued ?