We learn one more time on the forum of Wololo, some interesting infos about the hack 4.01 of the Chinese team during the contest GeekPwn.
After the team members are announced that they will reveal the faults of their exploit at Sony, other devs have hasten to look how the latter has been set up.
With the initial research, some people would have had access to some info on the Taichin Tech FreeBSD exploit. The kernel exploit of this 4.01 hack, apparently rests on a revealed CVE (CVE-2016-1885) fault in April. It seems that it was not properly patched and that it would be one of the flaws that Taichin Tech hackers would have used to access the internal system of the PS4.
The argument validation in r296956 was not enough to close all possible overflows in sysarch (2)
Of course, all this is not yet proven, but things are moving in the right direction, moreover FreeBSD being open-source, the details of the correction of this kernel fault will help our hackers to better understand how The latter works.
Naturally all this information is for us simple users, incomprehensible, but do not doubt that the qualified people will be what to make and use it as it is necessary.
This has already started according to some hackers.
What remains in theory for a jailbreak PS4> 1.76?
In 1.76, things are already done, we have a feat webkit and a kernel exploit, for the rest of the PS4 therefore> 1.76, in theory, I repeat, we own a feat webkit in 3.55 (the same henkaku fault) On the other hand we just missed a kernel exploit in order to be at the same level as the PS4 in 1.76, hence the importance of this fault CVE (CVE-2016-1885).
So in conclusion, the PS4 in 3.55 and below have a good chance of joining the PS4 in 1.76 at the possibility of Hack (Linux, Menu Debug, etc ...).
Why 3.55 and less and 4.01 and less, simply because we do not possess the fault webkit used by the Chinese and the latter will (has been?) Revealed to Sony, so it will be blocked if it is not already the case With the 4.05.
SpecterDev confirms on the pshax shootbox what has just been written on this news:
We advise you, if the PS4 hack interests you, not to update your consoles above 3.55 in order to take advantage of the fault webkit and so the future exploit kernel.
For those in 4.00 / 4.01 you will have to be patient and do not update in 4.05 in order not to lose the flaw webkit always present in these 2 firmwares but not yet known from the scene (in theory).
Links about this famous kernel fault
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1885
https://www.freebsd.org/security/advisories/FreeBSD-SA-16:15.sysarch.asc
https://www.mail-archive.com/svn-src-all@freebsd.org/msg132464.html
After the team members are announced that they will reveal the faults of their exploit at Sony, other devs have hasten to look how the latter has been set up.
With the initial research, some people would have had access to some info on the Taichin Tech FreeBSD exploit. The kernel exploit of this 4.01 hack, apparently rests on a revealed CVE (CVE-2016-1885) fault in April. It seems that it was not properly patched and that it would be one of the flaws that Taichin Tech hackers would have used to access the internal system of the PS4.
The argument validation in r296956 was not enough to close all possible overflows in sysarch (2)
Of course, all this is not yet proven, but things are moving in the right direction, moreover FreeBSD being open-source, the details of the correction of this kernel fault will help our hackers to better understand how The latter works.
Naturally all this information is for us simple users, incomprehensible, but do not doubt that the qualified people will be what to make and use it as it is necessary.
This has already started according to some hackers.
What remains in theory for a jailbreak PS4> 1.76?
In 1.76, things are already done, we have a feat webkit and a kernel exploit, for the rest of the PS4 therefore> 1.76, in theory, I repeat, we own a feat webkit in 3.55 (the same henkaku fault) On the other hand we just missed a kernel exploit in order to be at the same level as the PS4 in 1.76, hence the importance of this fault CVE (CVE-2016-1885).
So in conclusion, the PS4 in 3.55 and below have a good chance of joining the PS4 in 1.76 at the possibility of Hack (Linux, Menu Debug, etc ...).
Why 3.55 and less and 4.01 and less, simply because we do not possess the fault webkit used by the Chinese and the latter will (has been?) Revealed to Sony, so it will be blocked if it is not already the case With the 4.05.
SpecterDev confirms on the pshax shootbox what has just been written on this news:
We advise you, if the PS4 hack interests you, not to update your consoles above 3.55 in order to take advantage of the fault webkit and so the future exploit kernel.
For those in 4.00 / 4.01 you will have to be patient and do not update in 4.05 in order not to lose the flaw webkit always present in these 2 firmwares but not yet known from the scene (in theory).
Links about this famous kernel fault
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1885
https://www.freebsd.org/security/advisories/FreeBSD-SA-16:15.sysarch.asc
https://www.mail-archive.com/svn-src-all@freebsd.org/msg132464.html