Topic: Bypass Dvd Detection In Nxe? (Read 429 times)

dwinsor · « **Reply #30 on:** March 07, 2009, 11:03:00 AM »

Would it be possible to make a dvd look like multiple disks.

what does the NXE look for on the disk. If you know this would be be posible to put that information on a dvd to "fake" out NXE.

This is just a suggestion not a programmer so don't know.

thanks (IMG:style_emoticons/default/muhaha.gif)

torne · « **Reply #31 on:** March 09, 2009, 06:04:00 AM »

If you'd actually read these threads you *would* know. It can't appear to be multiple discs, because that makes no sense: the console doesn't ask the drive if the right disc is in, giving it a chance to say yes or no, it asks the drive what disc is in there, which it can only give one answer to.

It looks for exactly the same information on the disc that is checked if you boot the disc without it being installed to the hard drive: all the security challenges from SS/PFI/DMI/etc. We can already put this information on a DVD, this is called "making a backup"

HotKnife420 · « **Reply #32 on:** March 09, 2009, 09:11:00 PM »

QUOTE(torne @ Dec 9 2008, 02:26 PM)

Because that will save you a couple of minutes, but still use up a dual layer disc, and would be incredibly easy for MS to change their disc checking procedure to check for and ban you. Seems like a waste of effort, no? Why not just burn a full backup?

Since when is getting the console banned so important? I thought that was the original trade-off (ie: you can ban my xbox, and I can mod the hell outta it)...

torne · « **Reply #33 on:** March 10, 2009, 06:48:00 AM »

Just because MS can ban the box doesn't mean it's unreasonable to take steps to minimise the chance.. I wouldn't complain if my modded box was banned, because I understand the risk, but it's more convenient for me if it isn't, saves switching cables to the other box.

BombTester · « **Reply #34 on:** March 12, 2009, 05:42:00 PM »

Maybe a Firmware that could say a disc is in the drive and with ss to see what game it is and load it with the firmware

torne · « **Reply #35 on:** March 13, 2009, 11:15:00 AM »

I can't really parse that, but it's extremely likely that one of my previous posts in this thread or in http://forums.xbox-s...howtopic=665543 already answers it

There isn't really anything new to say on this subject.

noetikos · « **Reply #36 on:** March 13, 2009, 09:00:00 PM »

i was really surprised to learn that MS decided to add the feature of playing games directly off the hdd with NXE. game performace is a bit faster than running a game from the dvd drive (no visual enhancement) but i just like the fact that the dvd drive doesn't have to be used that much anymore and it just helps to preserve the drive and laser.

anyways, i think that MS just ended creating another flaw but an opportunity that will allow modders to exploit the NXE's feature off adding games to the hdd. MS claimed the the original xbox was uncrackable but everyone knows that it was cracked not too long after it came out.it's only a matter of time when someone will hack NXE and come out with a bad ass exploit. i know that will be able to play games from hdd without the need to have an original or back up game in the dvd drive.

This post has been edited by noetikos: Mar 14 2009, 04:03 AM

torne · « **Reply #37 on:** March 16, 2009, 06:42:00 AM »

QUOTE(noetikos @ Mar 14 2009, 03:36 AM)

anyways, i think that MS just ended creating another flaw but an opportunity that will allow modders to exploit the NXE's feature off adding games to the hdd. MS claimed the the original xbox was uncrackable but everyone knows that it was cracked not too long after it came out.it's only a matter of time when someone will hack NXE and come out with a bad ass exploit. i know that will be able to play games from hdd without the need to have an original or back up game in the dvd drive.

All evidence is that the security validation performed to run games from the hard drive is identical to running them from DVD. The added code in the kernel to support this is a place to look for new attacks of course, but the sensitive parts of the process are, as they have always been, in the hypervisor, which is a much smaller attack surface and is the part of the code that MS will have most carefully audited.

Libtoem · « **Reply #38 on:** March 17, 2009, 08:55:00 AM »

Well said torne. (IMG:style_emoticons/default/cool.gif)

Also is not about hacking the NXE,for it to work correctly the 360 would need to be fully cracked which is not not going to happen for a very long time if given.If your looking at the 360 in terms of the original xbox than your obviously mistaken.

4NIC8TOR · « **Reply #39 on:** March 31, 2009, 09:32:00 AM »

Plus, some of us who have had a 360 since launch date have never played on Live and do not care to. So whether they could ban us is not really an issue. I would rather be able to put all of my games on the HD than ever go on Live. I could always buy a 2nd box if I REALLY wanted to go on Live.

CoNinja · « **Reply #40 on:** May 04, 2009, 03:58:00 AM »

I'm tired and didn't read through entire post so if this has been posted already sorry. I'm thinking the only way around this would be bypass the check that goes to the dvd drive which as far as I know doesn't ask to locate a specific SS, but to launch the disk to the point of verifying what game is in the drive. So it's not like "HDD: Hey tell me if these numbers are on the disk" it's more along the lines of "HDD: Hey run the disk, tell me what you got, then I might tell you what I have too. If they are the same let's play this game woot!" So looking into making a disk full of SS or even a "switch" which would need possibly over a thousand choices, is in my book a waste of time.

The answer is going to lie in bypassing the check completely. Which would mean the executable on the game will need to be hacked and we can't resign it yet. Probably be a decade before we get a way, if ever. So, what's next? We'll have to modify the kernel/dash to be able to launch homebrew. Search forums and find out how far that project has gotten. There have been advances, but nothing too promising yet. I know my grammar is horrible. Get over it. =P So, in closing. If you show me an exploitable kernel post NXE, I'll show you a way to play games without disk checks.

This post has been edited by CoNinja: May 4 2009, 11:01 AM

Spirantho · « **Reply #41 on:** May 27, 2009, 03:25:00 AM »

Hi,

First off, I'd like to say well done on looking at this issue. If we can bypass the disc checks then it'll let us run games straight off the HDD including, hopefully, consoles where the DVD key is lost or incorrect. This could let us run an exploit such as the KK one and read the DVD key from the NAND, if we're very lucky. That could resurrect many a 360 (not least one of mine!).

Second, a hypothesis: if the CON file contains the game data, then it presumably contains the data to identify the disc it needs to run the game. Hack the CON file to always look for the same disc, and then install the DVD image (with the modified CON file) to the HDD. Then just use the same "key disc", as the CON file in all your HDD images will be the same, looking for the key disc, which would permanently reside in your DVD drive. Could that work?

torne · « **Reply #42 on:** May 27, 2009, 06:17:00 AM »

QUOTE(Spirantho @ May 27 2009, 09:17 AM)

First off, I'd like to say well done on looking at this issue. If we can bypass the disc checks then it'll let us run games straight off the HDD including, hopefully, consoles where the DVD key is lost or incorrect. This could let us run an exploit such as the KK one and read the DVD key from the NAND, if we're very lucky. That could resurrect many a 360 (not least one of mine!).

All the methods that are actually possible in this thread involve connecting custom hardware to the SATA connector to serve in the place of the DVD drive. This hardware would have to have your DVD key. So, no, it won't help with that. The only thing that's ever going to let people with lost DVD keys recover them is if an exploit similar to the KK one is discovered in an XEX that's already signed to allow execution from the hard drive.

QUOTE

Second, a hypothesis: if the CON file contains the game data, then it presumably contains the data to identify the disc it needs to run the game. Hack the CON file to always look for the same disc, and then install the DVD image (with the modified CON file) to the HDD. Then just use the same "key disc", as the CON file in all your HDD images will be the same, looking for the key disc, which would permanently reside in your DVD drive. Could that work?

No, the pairing of security data is between the SS on the DVD and the XEX itself, and we can't modify the XEX as it's signed by MS. Being able to change the CON probably doesn't let you do anything more than being able to change the ISO before you burn a backup. It appears that the CON is more or less just a plain image of the DVD's filesystem.

SACALUKA · « **Reply #43 on:** October 17, 2009, 07:05:00 PM »

Hi. New to this forum. Has anyone thought about Games on Demand? From my understanding you download the games from XBL to HD and play them with no disk. Maybe we can duplicate those files and copy them from a pc to the xbox hd. Just a thought.

No_Name · « **Reply #44 on:** October 17, 2009, 07:35:00 PM »

QUOTE(SACALUKA @ Oct 17 2009, 06:05 PM)

Hi. New to this forum. Has anyone thought about Games on Demand? From my understanding you download the games from XBL to HD and play them with no disk. Maybe we can duplicate those files and copy them from a pc to the xbox hd. Just a thought.

There is no maybe the answer is a 100% no way in hell.

This idea comes up alot and the answer is and will remain as a 'No'

Author Topic: Bypass Dvd Detection In Nxe? (Read 429 times)