iPhone jailbreak IPSW?

[moonman239]

I'm just wondering if it would be possible to jailbreak the iPhone by creating and installing a modified IPSW file.

If the devs did that, I don't think they'd have to search for a loophole to exploit - they'd just have to find a way to take the sandbox out, perhaps by injecting an application where it would not be affected by the sandbox. That application can then be used to install Cydia.

Is it possible to jailbreak it this way? Would it be as feasible as finding a loophole in the software? Why or why not?

 

[Intell]

This is what PwnageTool does. But it requires a bootrom exploit like limera1n. Otherwise the iPhone would see that the IPSW is not longer properly signed by Apple and reject it.

 

[hackthatphone]

The current pwnagetool (meant for 5.0.1) still has bugs in it. You could use it but you'd have to use redsn0w to fix all the bug updates that pwnagetool still hasn't received. Hopefully pt will be updated for 5.1 and not forgotten about. I miss that program.

 

[JT17]

For Windows, there's SnowBreeze.