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Mission: Hack the TI Nspire
This is an archived, read-only copy of the United-TI subforum , including posts and topic from May 2003 to April 2012. If you would like to discuss any of the topics in this forum, you can visit Cemetech's Technology & Calculator Open Topic subforum. Some of these topics may also be directly-linked to active Cemetech topics. If you are a Cemetech member with a linked United-TI account, you can link United-TI topics here with your current Cemetech topics.

This forum is locked: you cannot post, reply to, or edit topics. Community News & Discuss Nspire => Technology & Calculator Open Topic
Mission: Hack the TI Nspire
United-TI Archives -> Community News & Discuss Nspire
 
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Author Message
ZagorNBK


Newbie


Joined: 29 May 2008
Posts: 36
Posted: 08 Jan 2010 03:06:31 pm    Post subject:
The color screen isn't fake, it's just that TI hasn't yet made an OS to make it work correctly... Razz
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calc84maniac


Elite


Joined: 22 Jan 2007
Posts: 770
Posted: 08 Jan 2010 08:21:50 pm    Post subject:
ZagorNBK wrote:
The color screen isn't fake, it's just that TI hasn't yet made an OS to make it work correctly... Razz

The LCD driver supports color LCDs, but we have no reason to believe the TI-Nspire actually has one.
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ZagorNBK


Newbie


Joined: 29 May 2008
Posts: 36
Posted: 09 Jan 2010 10:08:00 am    Post subject:
I obviously intended it as a joke. But I am surprised that the driver handles color LCDs. TI sure is strange...
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ExtendeD


Advanced Newbie


Joined: 30 Aug 2009
Posts: 91
Posted: 09 Jan 2010 05:24:31 pm    Post subject:
A short video of the GameBoy emulator on a real calc: http://www.youtube.com/watch?v=3Rg4RdN2FAU
Thank you calc84maniac, it works impressively well.

There are still a few issues to be addressed or fixed before a stable release of the installer, I need your patience.
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calcdude84se


Member


Joined: 09 Aug 2009
Posts: 207
Posted: 09 Jan 2010 08:38:34 pm    Post subject:
wow. This. Is. AWESOME! :biggrin:
How did you get it to work? I repeat an earlier question in asking what kind of exploit this is.
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bwang


Member


Joined: 15 Mar 2009
Posts: 128
Posted: 09 Jan 2010 09:15:46 pm    Post subject:
Quote:
There are still a few issues to be addressed or fixed before a stable release of the installer, I need your patience.


Can we have an unstable/alpha release? Or would such a program be too dangerous?
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panyan


Member


Joined: 29 Dec 2007
Posts: 142
Posted: 10 Jan 2010 09:33:45 am    Post subject:
ExtendeD wrote:
A short video of the GameBoy emulator on a real calc: http://www.youtube.com/watch?v=3Rg4RdN2FAU
Thank you calc84maniac, it works impressively well.

There are still a few issues to be addressed or fixed before a stable release of the installer, I need your patience.


*drools*

wow...

*drools*
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DrDnar


Member


Joined: 28 Aug 2009
Posts: 116
Posted: 10 Jan 2010 12:20:16 pm    Post subject:
Hey ol' Herbie, whatcha gonna do about THIS one?

*plays triumphant music*

Last edited by Guest on 19 Jan 2010 10:58:53 pm; edited 1 time in total
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brandonw


Advanced Member


Joined: 12 Jan 2007
Posts: 455
Posted: 10 Jan 2010 04:27:50 pm    Post subject:
This Nspire exploit, can you tell us if it has been fixed in later OS updates? Because if not, I can understand the hesitation on releasing it.
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ExtendeD


Advanced Newbie


Joined: 30 Aug 2009
Posts: 91
Posted: 10 Jan 2010 04:55:40 pm    Post subject:
ZagorNBK: yes, a buffer overflow is one of the flaws exploited, but not the only one.

brandonw: some of the flaws used have still not been fixed.

For the moment I am not sure how to release the tool because of this.
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calc84maniac


Elite


Joined: 22 Jan 2007
Posts: 770
Posted: 10 Jan 2010 05:13:55 pm    Post subject:
ExtendeD wrote:
ZagorNBK: yes, a buffer overflow is one of the flaws exploited, but not the only one.

brandonw: some of the flaws used have still not been fixed.

For the moment I am not sure how to release the tool because of this.

Well, maybe you could privately send to developers for now (hint hint) :ninja:
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ExtendeD


Advanced Newbie


Joined: 30 Aug 2009
Posts: 91
Posted: 10 Jan 2010 05:25:31 pm    Post subject:
There are still two remaining issues.
One of them is the key combo to switch to normal boot. Goplat, if I am not mistaken it seems that the 'ON' key is not correctly mapped in gui.c of the emulator.
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Goplat


Advanced Newbie


Joined: 26 Jun 2007
Posts: 95
Posted: 10 Jan 2010 05:36:04 pm    Post subject:
ExtendeD wrote:
There are still two remaining issues.
One of them is the key combo to switch to normal boot. Goplat, if I am not mistaken it seems that the 'ON' key is not correctly mapped in gui.c of the emulator.
You're right; for the normal Nspire keypad I mistakenly put it at row 0 column 9, but it belongs two spaces over to the right, at row 0 column 11.
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Galandros


Active Member


Joined: 29 Aug 2008
Posts: 565
Posted: 10 Jan 2010 05:45:27 pm    Post subject:
Is the exploit tested under Nspire CAS and works?
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haveacalc


Newbie


Joined: 02 Dec 2009
Posts: 1
Posted: 10 Jan 2010 06:48:47 pm    Post subject:
calc84maniac wrote:
ExtendeD wrote:
ZagorNBK: yes, a buffer overflow is one of the flaws exploited, but not the only one.

brandonw: some of the flaws used have still not been fixed.

For the moment I am not sure how to release the tool because of this.

Well, maybe you could privately send to developers for now (hint hint) :ninja:


Passively seconded.
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brandonw


Advanced Member


Joined: 12 Jan 2007
Posts: 455
Posted: 10 Jan 2010 09:44:23 pm    Post subject:
ExtendeD wrote:
ZagorNBK: yes, a buffer overflow is one of the flaws exploited, but not the only one.

brandonw: some of the flaws used have still not been fixed.

For the moment I am not sure how to release the tool because of this.


Perhaps instead of releasing the tool (for now), you can give us some details on the things which HAVE been fixed. If nothing else, it gives us something to play with, and the knowledge might lead to other exploits (preferably ones which have been fixed...I'd rather downgrade and play safely than start the cat-and-mouse game of finding exploits after they fix them).
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netham45


Advanced Newbie


Joined: 25 Mar 2006
Posts: 99
Posted: 11 Jan 2010 02:28:58 am    Post subject:
would the ability to be downgraded at least secure the flaw on all calculators released until now, or can the "maintenance menu" be whacked through a simple upgrade?

Also, is TI even interested in keeping the hardware secure, or just not supporting it? With the older calcs, since there were "approved" methods of execution, an average joe could think that it falls to TI to support any broken program that is found, where this would clearly be a hack, so they would have obviously(to the standard grade of idiot, at least) no obligation to help support it.
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panyan


Member


Joined: 29 Dec 2007
Posts: 142
Posted: 11 Jan 2010 04:14:44 am    Post subject:
Galandros wrote:
Is the exploit tested under Nspire CAS and works?


id love to know this too!
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ExtendeD


Advanced Newbie


Joined: 30 Aug 2009
Posts: 91
Posted: 11 Jan 2010 12:22:24 pm    Post subject:
Not yet, but it should probably work.
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ExtendeD


Advanced Newbie


Joined: 30 Aug 2009
Posts: 91
Posted: 11 Jan 2010 02:58:19 pm    Post subject:
Goplat wrote:
You're right; for the normal Nspire keypad I mistakenly put it at row 0 column 9, but it belongs two spaces over to the right, at row 0 column 11.

Thanks.

Are you using IDA? If yes would you be willing to share an export of the symbols you found as an IDC file as we did on yAronet?
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Mission: Hack the TI Nspire
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