JailbreakMe PS4 4.0x: PS4 4.0x WebKit RCE Exploit by Qwertyoruiopz!

Following the PS4 Playground for Firmware 3.55 and PS4 3.55 File Browser, today PlayStation 4 developer qwertyoruiopz made available a PS4 4.0x WebKit RCE Exploit dubbed JailbreakMe PS4 4.0x with details via Twitter below!

PS4 Link (click go 3 times): http://rce.party/ps4/ / local rce.rar (3 KB) via Nesterwork / Local RCE v2.rar (6 KB) via Nesterwork / Local rce v3.rar (12 KB) via Nesterwork

According to the developer's Tweets below, the bug used is a stack uninit read yielding UaF and the actual exploit does nothing but give you read/write/infoleak arbitrary JS object primitives.

He also confirmed the exploit won't work on PS4 4.50 as Sony updated WebKit past a vulnerable version unfortunately, but it's still an entry point for those on PlayStation 4 OFW 3.55 through 4.07.

That said, if you give it a try on a PlayStation 4 under 4.50 and receive a ffff000000000539 error prompt it's expected output for the exploit's success.

Spoiler: Related Twitter Tweets

Cheers to @DarkElementPL, @DoxyMarket, @hyndrid, @ryan111, @toni1988 and @vettegast for sharing the news in the PSXHAX Shoutbox!

 

[PSXHAX]

If it's on PS4 Beta Firmware Sony lets you rollback the Firmware, but if you mean 4.50 OFW (Final) then you may be stuck with it for the time being.

 

[hector09]

Im on 4.50 beta for and since to finally version of 4.50 came out im pretty sure i cant go back to 4.07 through system update function. Do you think it will work if I update through safe mode to 4.07

I understand that but my question is should it be better to just update to 4.07 and do the exploit or just stay in 3.70

Thank you

 

[Centrino]

That depends on how much you wanna play whatever game that requires 4.07 or under

 

[hector09]

That depends on how much you wanna play whatever game that requires 4.07 or under

I really wanna play it but if theres less chances for me to install CFW on 4.07 then i rather stay on 3.70, thats why im asking if its ok to go to 4.07 without no risk of having less chances to install CFW when it comes out

 

[Centrino]

Tough question we all think about, cfw wont be anytime soon. But having an ability to read/write memory up to 4.07 is just as good. Maybe source a 2nd console?

 

[ArthurBishop]

I really wanna play it but if theres less chances for me to install CFW on 4.07 then i rather stay on 3.70, thats why im asking if its ok to go to 4.07 without no risk of having less chances to install CFW when it comes out

Don't update higher than 4.05.

 

[LarryK]

2nd console was a great decision.... Got the error on 4.07.

Just when the scene seemed boring....

 

[Centrino]

Error?

 

[LarryK]

The error screen..... Meaning I can proceed

 

[Samuze]

What a Great news today , this is a big step further, we haven't gotten news like this since a while lol, so let's see what will be the next step ! I am looking forward a CFW......