GeoHot Discoveres Baseband 05.12.01 Exploit

According to iHackintosh and GeoHot’s Twitter page, GeoHot finally discovered a working exploit in baseband 05.12.01. that’s a good news for the iPhone unlockers who updated their iPhone to stock firmware 3.1.3. GeoHot posted the hash of his BB exploit for safekeeping by tweeting, “For safekeeping d8b50dc95d7906e3ff6155331a534b55d0f6cac1=good. And motorama this weekend!” But he is not going to release his unlock this weekend. says, “possibly we may have a release after OS 3.2 this march with iPad launch or may be with after iPhone 4G/ OS 4.0 in June/July event.”

The first crash for latest baseband was found by Sheriff Hashim. He then handed the exploit to iPhone Dev team. Musclenerd also confirmed that the crash is very promising. Musclenerd didn’t promised any ETA for the Ultrasn0w update, may be dev team is looking forward to save the exploit for OS 3.2 or may be for next gen iPhone and OS 4.0.

A Dutch man, Visnet, recently talked to GeoHot and Musclenerd. Here’s the IRC conversation between them:

<visnet_> What does geohot tweet mean?
<%geohot> its my bb exploit for safekeeping
<%Par4doX> geohot: did you turn that over to the dev team or are you doing something with it?
<%geohot> my days of turning things over are done
<%geohot> i hope its different from the one they have
<%geohot> but they prob already have it
<%geohot> its the one i orig wanted to release blacksn0w with
<%Par4doX> it’s still there in the new bb
<%geohot> yep, just checked
<%geohot> but then opted to use xemn since it was public
<Evan> Oo, it carries over from 05.11 to 05.12?
<%geohot> why wouldn’t it, apple doesn’t fix things proactivly
<@MuscleNerd> geohot we prob should figure out a way to know if we have same exploit double blind, otherwise we may release 2 different ones at same time
<%geohot> any suggestions?
<@MuscleNerd> not sure how to do that without making it easy to brute force though
<%geohot> yea, i salted the hash
<@MuscleNerd> yeah
<@MuscleNerd> hmm maybe if we both hash the stack dump
<@Confucious> Can you two take this out of public sight?
<@MuscleNerd> the stack itself, not the header before it or the registers after it
<Her> muscle: any notice about the exploits are the same ?
<%geohot> we are working on it
<%geohot> cryptography, perfect for people who don’t trust each other

The conversation clarifies that both GeoHot and Musclenerd now have a working exploit for latest baseband. Both hackers are unsure if they have same or different crashes under their hood.

Source: iHackintosh

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