How to set up your Mac and Device for Vuln Research/Exploit Development, How to load own kernel modules into the iOS kernel, MAC Policy Hooks, Sandbox, Entitlements, Code Signing, Closed Source Kernel Parts and How to analyze them, Kernel Heap Debugging/Visualization (new software package for new devices), In-Depth Explanation of How the Kernel Heap works (up to date for iOS 14), Different techniques to control the kernel heap layout (including non-public ones), Discuss weaknesses in current heap implementation, Discussion of all the iOS Kernel Exploit Mitigations introduced, Includes software and hardware based mitigations like (KTRR, KPP, PAC, PAN, APRR), Including newest mitigations already known in iOS 14, Discussion of various weaknesses in these protections, Full walkthrough through exploitation of multiple prior known iOS memory corruption vulnerabilities, Analysis of public exploits and discussion how to improve them, Overview over different vulnerability types commonly found in iOS kernel and exploit strategies, Part of the training will be to reimplement bits and pieces of an iOS 13 kernel exploit, Discussion of how recent iOS jailbreaks work, Discussion of necessary steps to port exploits from old to new devices. Therefore this paper discusses the exploitation of iOS … It will be perfomed twice to allow trainees accross different timezones to attend the course. A common exploit primitive specific to iOS kernel exploitation is having a send right to a fake Mach port (struct ipc_port) whose fields can be directly read and written from userspace. Exploiting the iOS Kernel: The iPhone user land is locked down very tightly by kernel level protections. Stefan Esser • iOS Kernel Exploitation - IOKit Edition • November 2011 • 5. In 2010 he did his own ASLR implementation for Apple’s iOS and shifted his focus to the security of the iOS kernel and iPhones in general. Therefore for 2019 we have finally added this course to our syllabus. Since he became a PHP core developer in 2002 he devoted a lot of time to PHP and PHP application vulnerability research. This starts with an introduction into the specifics of the iOS platform so that trainees with or without deep knowledge of iOS are on the same track. It is a full 4-day course and is targeted at intermediate to advanced exploit developers that want to switch over to iOS or learn how to deal with modern iOS user space targets. But these devices need to be jailbroken on iOS 12. Types of Kernel Exploits normal kernel exploits • privilege escalation from “mobile“ user in applications • break out of sandbox • disable code-signing and RWX protection for easier infection • must be implemented in 100% ROP untethering exploits • kernel exploit as “root“ user during boot sequence • patch kernel to disable all security features in order to jailbreak • from … Therefore for 2019 we have finally added this course to our syllabus. After having successfully run an introductory 3 day userspace exploitation training during the HITB conference in Amsterdam we have decided to offer an advanced course that discusses targetting not only applications and daemons but also Apple's iMessage. However, debugging iOS kernel is much more difficult. Exploitation of this bug is fairly simple, once the sandbox-escape primitives are set up. Therefore for 2019 we have finally added this course to our syllabus. •privilege escalation from “mobile“ user in applications. Further more modern iOS devices will be provided throughout the course for gaining experience with hardware mitigations like PAC. If you are interested in this training, but want us to perform the training for your people, want to feature our training at your online conference or would just like to know if we provide the training again at a later time please contact us by e-mail training@antid0te.com. A few days ago Apple released iOS 14.4, which mainly fixed security issues. •break out of sandbox. iOS 9.3.5 Jailbreak Will Be Released For 32-Bit | iOS Kernel Exploitation Training The waiting game for a #Jailbreak for 32-Bit device owners running #iOS 9.3.5 might finally come to an end, as Stefan Esser, a known iOS Security Researcher will release a Jailbreak for it if the Kikstarter project goes to plan. However more and more students have been asking for a similar course targetted at iOS Userspace Exploitation. The patch, which is currently being rolled out via iOS and iPadOS automatic-updating mechanism, includes cover for a WebKit vulnerability that Apple believes may have been exploited in the wild by attackers. This course will concentrate on the latest security enhancements of iOS 14 and will discuss changes since iOS 13. Mac OS X vs. iOS (I) •iOS is based on XNU like Mac OS X. •there are no mitigations inside the kernel e.g. The whole training material (multiple hundred slides) will be handed to the students in digital form. With the release of iOS 14 Apple has once again raised the bars in terms of kernel level security. This course will introduce you to the kernel exploitation on iOS 13 and iOS 14 kernels. Apple investigating report of a new iOS exploit being used in the wild. Training sessions will be around 5 hours per training day. The course will require trainees to have an own iOS device that is compatible to the checkra1n iOS 14 jailbreak (or any other iOS 14 jailbreak that might come out until the start of the course). In addition to that trainees will get access to a few hours worth •some kernel bugs can be found by auditing the open source XNU. Every student will be handed an iPod Touch 32GB at the beginning of the training that they will work on during the training. During that time trainees can rewatch sessions as often as they want. In 2012 he co-authored the book the iOS Hackers Handbook. Login My watchlists Upload Cyber-security firm ZecOps said today it detected attacks against high-profile targets using a new iOS … All three zero-days were reported to Apple by an anonymous researcher and patches are available as part of iOS 14.4. He is famous among the jailbreaking community for having found the exploit to jailbreak iOS 4.3.1 untethered. This talk is my notes on the project - NOT a jailbreak walkthrough! The... Bug Analysis. Stefan Esser is best known in the security community as the PHP security guy. However in his early days he released lots of advisories about vulnerabilities in software like CVS, Samba, OpenBSD or Internet Explorer. Furthermore trainees get access to a Discord server that will be used to post information regarding the training and will be used to discuss exercises and their solution, unless those will be covered via Zoom. Training hands-on exercises will be performed on devices provided by Antid0te. However more and more students have been asking for a similar course targetted at iOS Userspace Exploitation. In this four day training participants will take a deep dive into topics related to iOS 12/13 userpace level exploitation. Trainees will get a license for the Antid0te software and scripts that are used during the training that allows usage but not redistribution of said software. iOS Kernel Vulnerabilities and their Exploitation Look at real iOS 10/11 Kernel vulnerabilities and how they can be exploited Overview over different vulnerability types commonly found in iOS kernel and exploit strategies During the training students will reimplement bits and pieces for real iOS 10.x kernel exploit It is not required for students to bring their own iOS devices. In addition to that all trainees will receive 1-2 weeks before the course a multi hour set of introduction videos they need to work through before the course. iOS 12/13 Advanced Userspace Exploitation Training, ARM64 Reverse Engineering and Android/Linux Exploitation, How to set up your Mac and Device for Vuln Research/Exploit Development, Dynamic Loading Frameworks, Libraries and ASLR, iOS Sandboxing and Inter Process Communication, Discuss specific objective-c and swift exploitation strategies, Using the iOS Userland Debugger for vulnerability research, How to deal with iOS Anti Debugging Tricks, Discussion of the iOS Userland Heap implementation, Discussion of other heap implementations in our targets, Introduction of new iOS userland heap visualization toolset, Understanding the MIG/IPC architecture and its attach surface, Understanding the XPC architecture and attack surface, Understanding target specific mitigations, Introduction to iMessage and its architecture, New mitigations in iOS 13 will be covered. The training sessions will be held via Zoom video conferencing. This is perfect for any beginner to iOS kernel exploitation so that they can practice their skills from exploitation to launching a full jailbreak on a device. Our iOS Kernel Exploitation Trainings in 2014/2015 have been so successful that former trainees, tricks, techniques and vulnerabilities from the training have been directly involved in the making of some of the public iOS jailbreaks. Since then he has spoken about the topic of iOS security at various information security conferences around the globe. With the release of iOS 14 Apple has once again raised the bars in terms of kernel level security. iOS 13/14 Kernel Exploitation. With the release of iOS 6 in 2012 Apple has started to drastically improve the security of the iOS kernel. The SektionEins and Antid0te iOS Kernel Exploitation Trainings in 2014-2018 have been so successful that former trainees, tricks, techniques and vulnerabilities from the training have been directly involved in the making of some of the public iOS jailbreaks up to iOS 10.2. Enhanced kASLR • Before iOS 12.2, kslide is just 1 byte (256 possibilities), and only affect high bits of the lower 4 bytes of the address • Also, once we obtain any .TEXT pointer, we can obtain kernel base just by simple AND operation (regardless of iOS version) • Now, kslide is much more complex than before. For up to 5 days after the training students can rewatch video recordings of all sessions. In this blog post, I'll describe a new iOS kernel exploitation technique that turns a one-byte controlled heap overflow directly into a read/write primitive for arbitrary physical addresses, all while completely sidestepping current mitigations such as … We offer the following rates for this training. However we will also give the trainees access to more modern devices to test out new hardware based mitigations like the ARM v8.3 pointer authentication. Students can optionally bring their own iOS device for experiments. Playlists: '34c3' videos starting here / audio / related events. This course will introduce you to the kernel exploitation on iOS 13 and iOS 14 kernels. The list of topics covered in the training. Since 2007 he works as head of research and development for the German web application company SektionEins GmbH that he co-founded. evasi0n7 was released by the evad3rs on 22nd Dec. 2013 Supported iOS 7.0 to 7.1b3 - all iDevices except ATV Decided to RE the kernel exploit of the jailbreak Not only the bug, but the techniques too! Trainees will get a license for the Antid0te software and scripts that are used during The code in the PoC will also work for exploitation, however the value provided in the SetSessionSettings buffer (0x4141414142424242) will need to be pointed towards a controlled kernel buffer, of which our function pointer can be loaded from. A useful tool called SerialDPProxy can be used here to perform proxy between serial and UDP. For years we have taught iOS Kernel Exploitation to a large crowd of students. iOS 11.x NEW UPCOMING iOS KERNEL EXPLOITATION TRAINING (And Why It’s Important) In today's video, we're discussing the upcoming iOS 11 Kernel Exploitation training sessions that Stefan Esser, a known developer in the community, is … pod2g also recommends these books: Mac Hacker's Handbook, Mac OS X Internals: A Systems Approach, and A Guide to Kernel Exploitation: Attacking the Core. Mac OS X exploitation was discussed before by nemo in his Phrack papers[1] and within the kernel exploitation book by Perla and Oldani[ 2]. iOS kernel exploitation archaeology (34th Chaos Communication Congress) On December 27th 2017 I presented at the 34th Chaos Communication Congress (34C3) a talk on the technical details and the process of reverse engineering and re-implementation of the evasi0n7 jailbreak's main kernel exploit, titled "iOS kernel exploitation archaeology". 54 min 2017-12-27 2017-12-28 2472 Fahrplan; This talk presents the technical details and the process of reverse engineering and re-implementation of the evasi0n7 jailbreak's main kernel exploit. Part 1: Heap Exploit Development on iOS Part 2: Heap Overflows and the iOS Kernel Heap In my previous posts, I talked about the general strategy used in an iOS exploit to turn a heap overflow vulnerability into a use after free vulnerability. For each topic we have selected a number of previously disclosed real world vulnerabilities so that trainees can learn from real examples and not only via mockup bugs. The goal of this training is to enable trainees to find and exploit new vulnerabilities in iOS userpace programs despite newest mitigations. xnu_gym is a project meant to purposely inject bugs into an iOS kernel that are trigerrable from Userspace. The training excercises will be performed on a mixture of devices running on iOS 12.x. heap/stack canaries. Ended up doing a re-implementation of the kernel exploit. The notes were updated later to include more details on the other issues. CVE-2020-27932 - iOS kernel type confusion with turnstiles (October 2020) Each of the discovered exploits revealed an expert understanding of the vulnerability being exploited and exploit development. the training that allows usage but not redistribution of said software. This course is an advanced exploitation course it is therefore assumed that all trainees have written exploits on the ARM64 platform before (for a good introduction to ARM64 exploitation see our course, The course will start with an introduction to the specialities of the iOS platform and is therefore suited for trainees with and without iOS userspace exploitation basics, IDA Pro 6.x/7.x license (ARM64 support required), alternatively Ghidra/Hopper/Binary Ninja can be used but script support varies by tool, Hexrays for ARM64 helpful, but not required, BinDiff for IDA helpful, but not required, Mac OS X 10.14/15, with latest XCode and iOS 12.x SDK (or newer), Additional Software will be made available during the training. However more and more students have been asking for a similar course targetted at iOS Userspace Exploitation. This software is currently going through a complete cleanup and modernization to ensure compatibility with all new devices. All training sessions will be recorded and made available as videos until 5 days after the training. If you have further questions or want to register for this training please contact us by e-mail training@antid0te.com. iOS device compatible with checkra1n for iOS 14, IDA Pro 7.x license (ARM64 support required), alternatively Ghidra/Hopper/Binary Ninja can be used but script support varies by tool, Hexrays for ARM64 helpful, but not required, BinDiff for IDA helpful, but not required, Mac OS X 10.15/16, with latest XCode and iOS 14.x SDK (or newer), Additional Software will be made available during the training. Read more about it, after the jump. One such hacker is i0n1c who, today, released an amazing presentation on iOS Kernel Exploitation. Please notice that signup, billing and execution of the training is performed by Antid0te UG (haftungsbeschränkt) for the EU/North America Edition and Antid0te SG Pte. Apple on Monday shipped the long-awaited iOS and iPadOS 14.5 update with patches for at least 50 documented security vulnerabilities. •exploitation of kernel vulnerabilities is therefore similar. We offer the training in an EU/North America edition and in an Singapore/Asia edition because of timezones. This course will concentrate on the latest security enhancements of iOS 14 and will discuss changes since iOS 13. In 2004 he founded the Hardened-PHP Project to develop a more secure version of PHP, known as Hardened-PHP, which evolved into the Suhosin PHP Security System in 2006. The following days will then concentrate on real world vulnerabilities in applications, daemons, services, and Apple's iMessage. The whole training material (multiple hundred slides) will be handed to the students in digital form. xnu_gym. •disable codesigning and RWX protection for easier infection. And we need to make our own cable to implement the serial communication between USB and Dock connector. Exploit strategy: The low-level, vulnerability-specific method used to turn the vulnerability into a useful exploit primitive. Researching iOS requires the XNU open source part of the kernel as well as the iOS kernelcaches. For years we have taught iOS Kernel Exploitation to a large crowd of students. At first, the release notes described three vulnerabilities that were actively exploited according to the editor, CVE-2021-1782 (Kernel), CVE-2021-1870 and CVE-2021-1870 (WebKit). iOS kernel exploitation archaeology argp. And not only that, with the recent release of iOS 7 Apple has once again changed the game. Unlike in person training courses when all attendees are present and share the same timezone the execution of online training courses requires some adjustments to be made to allow attendees accross different timezones to attent. •kernel exploit as “root“ user during boot sequence. This training will be held virtually in December 2020 via Zoom Sessions with support via a Discord server. This course is targeted at security researchers that want to learn how to find and exploit kernel vulnerabilities in iOS 14. The reason the exploit developer did this was because the attacker had little control over the heap overflow itself; the data that spilled past … •some bugs are only/more interesting on iOS. For years we have taught iOS Kernel Exploitation to a large crowd of students. iOS Kernel Exploitation Archaeology The evasi0n7 jailbreak was released by the evad3rs on 22nd December 2013 targeting devices running iOS 7.0 to 7.1b3. Therefore any sophisticated attack has to include a kernel exploit in order to completely compromise the device. of introductory videos. In August 2019, Ian Beer and Samuel Groß of Google Project Zero published a comprehensive article series... Test Environment. The exploitation of kernel vulnerabilities has become far more complex and difficult than it has been in the good old days of iOS 5. Writing an iOS Kernel Exploit from Scratch Introduction. Ltd. for the Singapore Edition. An Apple Mac Notebook is required in order to run MacOS and XCode. Some of these devices will be 64bit iPod touch (6th Gen) 32 GB devices that the trainees will use during the training. For the uninitiated, Stefen “i0n1c” Esser is a security researcher from Germany. The SektionEins and Antid0te UG iOS Kernel Exploitation Trainings in 2014-2016 have been so successful that former trainees, tricks, techniques and vulnerabilities from the training have been directly involved in the making of some of the public iOS jailbreaks. Focus on encountered difficulties & how … Please notice that this list is copied from an earlier version of the course and therefore there might be slight changes. only material available focuses on Mac OS X kernel exploitation, which is similar because the iOS and Mac OS X kernel share a big amount of code, namely the XNU source tree. Introduction. User settings and log-in options. In 2003 he was the first to boot Linux directly from the hard disk of an unmodified XBOX through a buffer overflow in the XBOX font loader. normal kernel exploits. For 5 days there will be daily live training sessions around 5h in length. •must be implemented in 100% ROP untethering exploits.
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