By Enrico Perla B.Sc. Computer Science University of Torino M.Sc. Computer Science Trinity College Dublin, Massimiliano Oldani
ISBN-10: 1597494860
ISBN-13: 9781597494861
A advisor to Kernel Exploitation: Attacking the middle discusses the theoretical recommendations and methods had to enhance trustworthy and potent kernel-level exploits, and applies them to various working platforms, specifically, UNIX derivatives, Mac OS X, and home windows. thoughts and strategies are awarded categorically in order that even if a in particular special vulnerability has been patched, the foundational details supplied can assist hackers in writing a more recent, greater assault; or aid pen testers, auditors, etc strengthen a extra concrete layout and protecting constitution.
The publication is geared up into 4 components. half I introduces the kernel and units out the theoretical foundation on which to construct the remainder of the publication. half II specializes in varied working structures and describes exploits for them that focus on numerous malicious program sessions. half III on distant kernel exploitation analyzes the consequences of the distant situation and provides new innovations to focus on distant concerns. It features a step by step research of the improvement of a competent, one-shot, distant make the most for a true vulnerabilitya malicious program affecting the SCTP subsystem present in the Linux kernel. eventually, half IV wraps up the research on kernel exploitation and appears at what the longer term may perhaps hold.
- Covers various working method households ― UNIX derivatives, Mac OS X, Windows
- Details universal situations resembling customary reminiscence corruption (stack overflow, heap overflow, etc.) matters, logical insects and race conditions
- Delivers the reader from user-land exploitation to the realm of kernel-land (OS) exploits/attacks, with a specific concentrate on the stairs that bring about the production of profitable suggestions, for you to provide to the reader anything greater than only a set of tricks
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Additional resources for A Guide to Kernel Exploitation: Attacking the Core
Sample text
Readers who want more information now can refer to the “Related Reading” section at the end of this chapter for a list of material on exploiting, auditing, and shellcode development. In this chapter we also talked about combined user and kernel address space versus separated address space design. We dedicated a whole section to this concept because it highly affects the way we write exploits. In fact, on combined systems we have a lot more weapons on our side. We can basically dereference any address in a process address space that we control.
AN EXPLOIT WRITER’S VIEW OF THE KERNEL In the preceding section, we outlined the differences between user-land and kernel-land exploitation; from this point on we will focus only on the kernel. In this section, we will go slightly deeper into some theoretical concepts that will be extremely useful to understand; later we will discuss kernel vulnerabilities and attacks. Since this is not a book on operating systems, we decided to introduce the exploitation concepts before this section in the hopes that the exploitationrelevant details will more clearly stand out.
Temporary buffers). An example of a frequently used object is the structure for holding information about each directory entry on the file system or each socket connection created. Searching for a file on the file system will quickly consume a lot of directory entry objects and a big Web site will likely have thousands of open connections. Whenever such objects receive a specific cache, the size of the chunks will likely reflect the specific object size; as a result, non-power-of-two sizes will be used to optimize space.
A Guide to Kernel Exploitation: Attacking the Core by Enrico Perla B.Sc. Computer Science University of Torino M.Sc. Computer Science Trinity College Dublin, Massimiliano Oldani
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