Today saw the release of a new bootrom exploit for the iPhone 3GS, an unpatchable vulnerability which gives jailbreakers total control of this device forever.
Although the iPhone 3GS is now very much a legacy device and few users will be actively using them, the rarity of a bootrom exploit makes it worthy of note. There have been no publicly released exploits of this kind since limera1n, which supported only up to the iPhone 4.
For those of you holding out hope that a bootrom exploit has been discovered for newer iOS devices, you’re going to have to keep hoping. That’s because famed iOS hacker, MuscleNerd, has confirmed that no A5+ bootrom exploit exists. A bootrom exploit is extremely desirable, because it means that the device could be permanently susceptible to a tethered jailbreak, much in the same vein as limera1n for pre A5 devices.
The iPhone Dev Team has released RedSn0w 0.9.15b2, which fixes a few items for owners of older devices.
The most outstanding fix is for 3GS owners with old bootroms — RedSn0w 0.9.15b2 brings back untethered jailbreak support for end users who fall into that category.
Most of the changes don’t pertain to owners of newer devices, but it’s always a good idea to ensure that you’re running the latest and greatest version anyway. Take a look inside for the full release notes.
If you are currently jailbroken on iOS 4.3.5, we have some bad news. There is going to be no untethered jailbreak until iOS 5 is released. This is because the various jailbreak teams are saving their exploits for iOS 5. They could release an untethered jailbreak right now, but then it would take longer to find an exploit for iOS 5…
Well well well. Here are some good news coming from MuscleNerd and co about a new exploit found by a hacker that goes by the name of pod2g. Apparently, pod2g found a bootrom exploit in iOS 4.0.1.
Why should we care about 4.0.1, I hear you saying? Since it’s a bootrom exploit, it means Apple cannot patch the exploit with a software update. The only way to patch the hole would require a hardware modification. In other words, Apple won’t be able to prevent us from jailbreaking until the iPhone 5 comes out.