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The First PS4 Kernel Exploit: Adieu

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Re: The First PS4 Kernel Exploit: Adieu

#21
post #7

Sony appears to have patched it from firmware 4.06 and up. The adieu in the title appears to refer to bidding a farewell to the exploit rather than a codename for it ;-) Great and insightful write-up nonetheless!

From what I've observed, this is where the unending cat-and-mouse game begins for Sony.

Re: The First PS4 Kernel Exploit: Adieu

#22
post #14

Is it me or Sony has become good at protecting its software ? I remember a time when every new console would be hacked within the year it was released.

If anything the PS4 is a downgrade from the PS3 here. The PS3 ran everything in a hypervisor.

I guess if people want this to happen they should goad George Hotz by telling him he can't possibly beat the protection.

Re: The First PS4 Kernel Exploit: Adieu

#23
post #14

Is it me or Sony has become good at protecting its software ? I remember a time when every new console would be hacked within the year it was released.

I don’t know much about it, but some other users were implying that they now use freebsd when previously they rolled their own OS. If that’s the case, it makes sense.

The PS3 appears to run a fork of FreeBSD:

https://en.wikipedia.org/wiki/PlayStation_3_system_software

Re: The First PS4 Kernel Exploit: Adieu

#24

Earlier quoted context omitted.

If anything the PS4 is a downgrade from the PS3 here. The PS3 ran everything in a hypervisor.

I guess if people want this to happen they should goad George Hotz by telling him he can't possibly beat the protection.

George is banned from exploiting Sony products

Re: The First PS4 Kernel Exploit: Adieu

#25

Earlier quoted context omitted.

I don’t know much about it, but some other users were implying that they now use freebsd when previously they rolled their own OS. If that’s the case, it makes sense.

The PS3 appears to run a fork of FreeBSD: https://en.wikipedia.org/wiki/PlayStation_3_system_software

This is why you don't trust Wikipedia. They're just using a couple FreeBSD subsystems (net & fs AFAICT), sort of like you would with a rump kernel.

Their kernel is so far from FreeBSD though that it doesn't even have a fork(2).

http://www.psdevwiki.com/ps3/LV2_Functions_and_Syscalls

Re: The First PS4 Kernel Exploit: Adieu

#26
post #17
post #14

Is it me or Sony has become good at protecting its software ? I remember a time when every new console would be hacked within the year it was released.

PS3 was out for ~3 years before it was hacked.

It wasn't worth hacking the PS3 because of OtherOS. They removed it, it was hacked.

Re: The First PS4 Kernel Exploit: Adieu

#28
post #8

Am I reading it correctly that it's possible to invoke syscalls from Javascript? That seems like a monumentaly bad idea...

Not directly. The exploit referred to by the title is a kernel exploit, but to execute the kernel exploit you need to be able to already run user code. They're using a Webkit exploit to run their user code.

Re: The First PS4 Kernel Exploit: Adieu

#29
post #21
post #7

Sony appears to have patched it from firmware 4.06 and up. The adieu in the title appears to refer to bidding a farewell to the exploit rather than a codename for it ;-) Great and insightful write-up nonetheless!

From what I've observed, this is where the unending cat-and-mouse game begins for Sony.

In fairness, it started back when Sony shipped their first piece of hardware with technical measures to prevent users from consuming the media of their choice :)
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