ASLR & DEP Refresher
- Bypassing ASLR
- Bypassing DEP
- Introduction to WinDBG
Windows Heap Management
- Terminology & building blocks
- Windows 7 Heap, Windows 10 Heap (“NT” and “Segment” heap)
- Front-End-ALlocator and Back-End-Allocator
- Differences between Windows 7 and Windows 10
- Heap manipulation primitives
- Basic mechanisms
- Data & object spraying
- Precise heap spraying
- Linear & non-linear overflows / controlled write
- Double Free
- Type confusion
- Use of uninitialized memory
- Memory leaks / Information Disclosure
- Heap Manipulations and heap primitives
Modern userland memory protection mechanisms
- Overview of memory protection evolutions
Finding your own bugs
- Thoughts & experiences on fuzzing
During the course, students will get the opportunity to work on real vulnerabilities in real applications, use a wide range of heap exploitation techniques and most importantly learn how to do your own research to find exploitation primitives in complex applications and new versions of Windows.
Warning – The course has a steep learning curve and will require full attention and focus.
The “Course Contents” on this page is subject to change without prior notice & can be updated between the moment of registration and the actual course. We will try to cover as much as we can from the “Course Contents”, based on the overall ability to absorb knowledge and time needed to complete the exercises, but Corelan cannot ever guarantee that we will be able to cover everything.
Pentesters, auditors, network/system administrators, reverse engineers, malware analysts, developers, members of a security department, security enthusiasts, or anyone that has a solid and practical basic knowledge of exploit development for Windows already.
Why take this course ?
- Are you familiar with the basics of exploit development ? Do you know how to write exploits for saved return pointer overwrites and abuse SEH records with your eyes closed ? Are you interested in understanding how heap spraying works, and why it works ? Is heap exploitation still a mysterious black box for you? Are you now ready for the next step ?
- Have you taken the Bootcamp or other commercial courses on exploit development and want to move to the next phase ?
- Do you want to learn modern techniques to exploit heap related memory corruptions on Windows 7 and Windows 10 ?
- Do you want to learn the fine art of writing browser exploits or exploit for other complex applications ?
- Do you want to learn the skills to investigate heap managers on modern Windows versions (Win7, Win10) and how to look for your own exploitation primitives?
- Would you like to know what (generic) questions to ask (rather than being spoonfed exploit-specific solutions & answers)
- Would you like to know how to approach fuzzing/bug hunting in complex applications, how to recognize and determine exploitability for heap based corruptions?
- Are you involved in malware research or do Incident Response & interested in understanding how exploits work?
- Would you like to understand better how to detect exploits and how to protect against them?
- Would you like to get a basic view on common development mistakes, how to avoid them and how compiler options can help?
- Are you able to write ROP chains blindfolded ? (It is fundamentally important that you have practical experience with constructing/writing your own ROP chain!)
- Are you willing to suffer and bleed, absorb new knowledge fast and not intimidated by debuggers and assembly instructions…
- …then this course is exactly what you need !
Students should :
- truly master all basic concepts of exploit development, as listed in our “BOOTCAMP” course. If you have taken the Bootcamp course and done a lot of practice after taking the class, then you’re probably ready for this class.
- be familiar with ROP (i.e. understand how it works on Windows, know how to build a ROP chain, know how to use mona.py to generate a chain and how to fix the chain if it doesn’t work)
- be familiar with using debuggers (we’ll use WinDBG for most part of the course, but we’ll spend some time explaining the basics of using WinDBG. It is assumed that you have practical experience with Immunity Debugger and mona.py)
- be ready to dive into a debugger and read asm for hours and hours and hours
- be ready to think out of the box and have a strong desire to learn
- be fluent with managing Windows / Linux operating system and with using vmware workstation/virtualbox
- be familiar with using Metasploit to generate shellcode
- have basic practical knowledge of assembly
It’s imperative for students to comply with these prerequisites.
Unless specified otherwise, students are required to bring the following :
- A laptop (no netbook) with vmware workstation/virtualbox and enough processing power and RAM (we recommend 4Gb of RAM) to run up to 2 virtual machines at the same time. The use of a 64bit processor and a 64bit operating system on the laptop will make the exercises more realistic.
- 3 Virtual machines (Windows 10 (no patches), Windows 7 SP1 (no patches), Kali Linux (fully up-to-date))
Note : you will receive the exact installation instructions after registration, about a week before class begins, so don’t start installling the VMs yet.
All required tools and applications will be provided during the training or will be downloaded from the internet during the training.
You must have full administrator access to all machines. You must be able to install and remove software, and you must be able to disable and/or remove firewall/antivirus/… when necessary.
In case you still need it ;-), you can find a large amount of testimonials on this page of the Corelan Training website.
It will be required to sign a confidentiality agreement at the start of the course. You will not be admitted to the course without signing this document. You can find a copy of the document here.
Peter Van Eeckhoutte is the founder of Corelan Team and the author of the well-known tutorials on Win32 Exploit Development Training, available at https://www.corelan.be. The team gathers a group of IT Security enthusiasts and researchers from around the world, who all share common interests : doing research, gather & share knowledge, and perform responsible/coordination disclosure. Above all, the team is well known for their ethics and their dedication to helping other people in the community. Together with the team, he has developed and published numerous tools that will assist pentesters and exploit developers, and published whitepapers/video’s on a wide range of IT Security related topics (pentesting tools, (malware) reverse engineering, etc). You can find some of the tools on the Corelan github page: https://github.com/corelan
The team also moderates a Slack workplace (with various channels) that provides a platform for people who want to talk about exploit development or discuss wider IT Security topics. Follow us on Twitter (@corelanconsult) and Facebook (corelanconsulting) to get a Slack invite.
Peter is reachable on Twitter via @corelanc0d3r
Peter has been an active member of the IT Security community since 2000 and has been working on exploit development since 2006. He presented at various international security conferences (Athcon, Hack In Paris, DerbyCon, ISSA Belgium) and taught various Win32 Exploit Development courses at numerous places around the globe. He trained security enthusiasts & professionals from private companies, government agencies and military organizations.
You can read more about their experiences here: https://www.corelan-training.com/index.php/testimonials/