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Wednesday, 13 December 2017 06:18

Google researcher releases PoC code for iOS jailbreak Featured

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A researcher from Google's Project Zero has released proof-of-concept code to exploit a bug in Apple's iOS and macOS operating systems.

Successful exploitation will give an attacker root status on the device in question.

Ian Beer released a technical explanation of the bug after the standard 90-day period which Project Zero observes after reporting a bug to the manufacturer.

The code would allow kernel-level access and also provide an initial local kernel debugger, he said.

Beer claimed the bug was reachable from the iOS app sandbox and this was demonstrated by his PoC.

Apple patched the bug in iOS 11.2 on 2 December. A fix for macOS was also released.

The exploit works by using memory corruption to run malicious code as the root user.

Beer said he had tested the exploit on an iPhone 7, iPhone 6s, and iPod touch 6G. Adding support for other devices “should be easy”, in his words.

Google's Project Zero researchers have released similar exploits for Microsoft software in the past, at times angering the software maker.

Microsoft has replied in kind on one occasion, releasing details of a method whereby remote code can be executed within Google's Chrome browser.

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Sam Varghese

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Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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