Description

This is the advanced version of the Windows Kernel Exploitation Foundation course. In this course, we will use Windows 10 RS6 x64 for all the labs and has a CTF that runs throughout the training.

This course starts with the changes in Windows 10, basics of Windows & driver internals, different memory corruption classes and fuzzing of kernel mode drivers. We will understand pool manager internals in order to groom kernel pool memory for reliable exploitation of pool-based vulnerabilities.

We will also look into how we can bypass kASLR, kLFH, and do hands-on exploitation using Data-Only attack, which effectively bypasses SMEP and other exploit mitigation.

Upon completion of this training, participants will be able to learn:

Basics of Windows and driver internals
Different memory corruption classes
Fuzz kernel mode drivers to find vulnerabilities
Exploit development process in kernel mode
Mitigation bypasses
Pool internals & Feng-Shui
Kernel debugging

Day 1

Windows 10
- Architecture
Fuzzing Windows Drivers
- Locating IOCTLs in Windows drivers
- Sanitizers
  - Special Pool
- Fuzzing the discovered IOCTLs
Exploit Mitigations
- Kernel Address Space Layout Randomization (kASLR)
  - Understand kASLR
  - Breaking kASLR using kernel pointer leaks

Day 2

Supervisor Mode Execution Prevention (SMEP)
- SMEP concepts
- Breaking/bypassing SMEP
Exploitation
- Arbitrary Memory Overwrite
  - Understand the vulnerability
  - Achieving privilege escalation

Day 3

Quick Revision
- Fuzzing
- kASLR
- SMEP
- Arbitrary Memory Overwrite
Pool Manager
- Internals (kLFH)
- Feng-Shui
Exploitation
- Memory Disclosure
  - Understand the vulnerability
  - Leak function pointer
  - Calculate driver base address

Day 4

Pool Overflow
- Understand the vulnerability
- Finding corruption target
- Grooming target pool
- Achieving arbitrary read/write primitive (data-only attack)
- Gaining local privilege escalation
  - Different places to corrupt
- Capture The Flag
  - Time to finish the CTF
  - Discuss any other vulnerability class if the students want and time permits
- Miscellaneous
  - Assignment to write a blog post about the vulnerability exploited during CTF
  - Q/A and Feedback

Who Should Attend? | Target Audience

Windows Kernel Exploitation Foundation attendees
Bug Hunters & Red Teamers
User-mode Exploit Developers
Windows driver developers & testers
Anyone with an interest in understanding Windows Kernel exploitation
Ethical Hackers and Penetration Testers looking to upgrade their skill-set to the kernel level

Why attend?

Upon completion of this training, participants will be able to:

Understand exploitation techniques to defeat mitigation like SMEP and kASLR
Understand how Windows Pool allocator
works in order to write a reliable exploit for complex bugs like pool buffer overflow and use after free
Learn to write exploits for the found vulnerabilities in the kernel or kernel mode components

Training Prerequisite

Basic operating system concepts
Good understanding of user mode exploitation
Basics of x86/x64 Assembly and C/Python
Patience

Hardware & Software Requirement

8 GB Flash drive
A laptop capable of running two virtual machines simultaneously (8 GB+ of RAM)
40 GB free hard drive space
Vmware Workstation/Player and VirtualBox installed
Everyone should have Administrator privilege on their laptop

What attendees will be provided?

Training slides
Scripts and code samples
BSOD T-Shirt

What to Expect?

Hands-on
WinDbg-Fu
Fast & Quick Overview of Windows Internals
Techniques to exploit Windows Kernel/Driver vulnerabilities

TRAINING