Buffer overflow exploit?

[Trailsmoke]

Any of you guys had a look at:

http://forums.xbox-scene.com/index.php?showtopic=560292    posted by vax11780?

Doable?

(please delete this post if it's useless, just saw the one at X-S and figured that XBH is a better place to get accurate information about stuff like this)

[Arakon]

as written right in the second posting, the hypervisor specifically prevents buffer overflows.

[Trailsmoke]

Yea, so I've noticed.

But further down in his post he wrote some explanation to why it might work anyway.

Seemed a little bit strange to me, that's why I posted here instead of reading speculations and rumors "over there" for some weeks.

Well, tnx for the answer and keep up the interesting threads!!

[BurnOmatic]

so the hypervisor prevents overflows, and what protects the hypervisor ? i mean its gotta have some kind of protection for itself ! right

[NinjaMuffins]

I;m abit of a noob when it comes to these things but couldnt the hypervisor be bypassed, or am i just thinking startrek, lol.

[Pringle]

The hypervisor is written code to protect code from being altered.. it's not like a onboard device wich can be turned off

The trick would be : sending / receiving data and commands through the code without the hypervisor "knowing" it

[revolt]

The hypervisor is written code to protect code from being altered.. it's not like a onboard device wich can be turned off

The trick would be : sending / receiving data and commands through the code without the hypervisor "knowing" it

so now the question: how do we do this ?

i see some options: 1. Remove or alter the code by harware(the hypervisor itself)
                           2. Get your code to go into the console after the hypervisor check (could be very stupid
                               becous i dont know how the hypervisor work so dont flame me right away)
                           3. change the bootsequence to prevent it from executing the hypervisor code.

seems to me that people with some real know how are getting very close to be able to do 3. changing the bootsequence with al that stuff on the SMC and the hynix flash.

revolt

[QuiescentWonder]

seems to me that people with some real know how are getting very close to be able to do 3. changing the bootsequence with al that stuff on the SMC and the hynix flash.

Nah, they already said that the SMC isn't anything important, just things like temperature monitors, fan controls... read the thread!