March 2022
Intermediate to advanced
752 pages
18h 47m
English
book
Gray Hat Hacking: The Ethical Hacker's Handbook, Sixth Edition, 6th Edition
by Allen Harper, Ryan Linn, Stephen Sims, Michael Baucom, Huascar Tejeda, Daniel Fernandez, Moses Frost
Content preview from Gray Hat Hacking: The Ethical Hacker's Handbook, Sixth Edition, 6th Edition
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CHAPTER 12
Linux Kernel Exploits
In this chapter, we cover the following topics:
• Return-to-user (ret2usr)
• Defeating Stack Canaries
• Bypassing Supervisor Mode Execution Protection (SMEP) and Kernel Page-Table Isolation (KPTI)
• Bypassing Supervisor Mode Access Prevention (SMAP)
• Defeating kernel address space layout randomization (KASLR)
The Linux kernel offers an enormous opportunity for exploitation. Despite it being a bit intimidating, the exploitation principles remain the same as user-space memory corruption bugs and its unconstrained access to memory and other resources provide attackers with unlimited power over affected systems. The vulnerable code and security bugs can be found on kernel modules, drivers, system calls, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.