checkra1n MEGATHREAD • permanent jailbreak for A5-A11 | iOS 12+ & 13+ [checkm8]

@axi0mX announced a BootROM exploit for the most generations of iPhones and iPads (A5-A11) on the 27th of september. Twitter • Reddit • GitHub This means, that the code, that is executed first inside the device can get manipulated and patched. This gives us many ways to customize the device. Because we're talking about a ROM - read-only memory - here, this vulnerability can't get patched by updates from Apple or any other way without physical access. You could have a permanent jailbreak without any problems upgrading to the newest iOS, install custom/modded IPSWs, downgrade iOS, configure Dual Boot (including Linux and co), break iCloud locks and much more. I will keep you updated with this thread. But be sure to follow the twitter and reddit threads of the crew! Today, the 10th of november, checkra1n - a jailbreak using the checkm8 exploit - got released by @qwertyoruiopz, 2 days after his talk on POC2019. I recommend taking a look at his presentation slides. There he explains how the exploit works and how exactly the vulnerability gets exploited for the jailbreak. Very detailed and exciting! checkra1n: website (downloads) • twitter Windows and Linux support is coming soon. But why so late? Look at the slides from qwertyoruiopz. He explains how the host (the PC) communicates with the iDevice and how the exploitation occures there. Connecting the device with a mac and exchaning data between host and device works differnt there as it would be on windows or linux. The drivers are different. As far as I know, there were some small issues with the windows/linux drivers which lead to a mac-only pre-release. But it's being worked on. You can stalk him and the other team members on twitter and look at the chronicle to get more information. What I find interesting is this quote from one of the slides: from the presentation slide: Future Plans • Screenshot Helpful links How do I install checkra1n? Which tweaks are compatible with checkra1n? How does checkra1n work? [POC2019 slides] People to stalk @axi0mX • @qwertyoruiopz • @sbingner • @s1guza • @littlesteve • @tihmstar

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