Difference between revisions of "De Rebus Antiquis"

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'''De Rebus Antiquis (DRA)''' is an exploit in iOS 7's bootchain that abuses a recursive stack overflow bug. The exploit was discovered by [https://twitter.com/xerub xerub]. Tools like [https://dora2ios.web.app/konayuki/index.html powdersn0w] and [https://dora2ios.web.app/CFJB/ cherryflowerJB] <!-- broken link --> can use this to achieve untethered downgrades on any 32-bit device you have iOS 7.x [[SHSH]] blobs saved for. This is most useful on the [[iPhone 4]].
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'''De Rebus Antiquis (DRA)''' is an exploit in iOS 7's [[iBoot (Bootloader) | iBoot]] that abuses a recursive stack overflow bug. The exploit was developed by [https://twitter.com/xerub xerub]. Tools such as [https://dora2ios.web.app/konayuki/index.html powdersn0w] can use this to achieve untethered downgrades on any 32-bit device you have iOS 7.1.x [[SHSH]] blobs saved for. This is most useful on the [[iPhone 4]].
   
It was patched in iOS 8 but may work on iOS 6 or earlier.
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DRA is not available on 64-bit devices. It was patched in iOS 8 but may work on iOS 6 or earlier.
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= See also =
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* [[iOS 5 HFS Heap Buffer Overflow]], another iBoot exploit that could be used for untethered downgrades
   
 
= External links =
 
= External links =
   
[https://xerub.github.io/ios/iboot/2018/05/10/de-rebus-antiquis.html Analysis]
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* [https://xerub.github.io/ios/iboot/2018/05/10/de-rebus-antiquis.html Analysis]
   
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[[Category:iBoot]]
 
[[Category:Exploits]]
 
[[Category:Exploits]]
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[[Category:iBoot Exploits]]
 
[[Category:Downgrading]]
 
[[Category:Downgrading]]
{{stub|software}}
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{{stub|exploit}}

Latest revision as of 07:32, 16 August 2022

De Rebus Antiquis (DRA) is an exploit in iOS 7's iBoot that abuses a recursive stack overflow bug. The exploit was developed by xerub. Tools such as powdersn0w can use this to achieve untethered downgrades on any 32-bit device you have iOS 7.1.x SHSH blobs saved for. This is most useful on the iPhone 4.

DRA is not available on 64-bit devices. It was patched in iOS 8 but may work on iOS 6 or earlier.

See also

External links

Tango Utilities-terminal.png This exploit article is a "stub", an incomplete page. Please add more content to this article and remove this tag.