A Guide to Kernel Exploitation: Attacking the Core by Enrico Perla B.Sc. Computer Science University of Torino

Posted On February 25, 2017 at 2:43 pm by / Comments Off on A Guide to Kernel Exploitation: Attacking the Core by Enrico Perla B.Sc. Computer Science University of Torino

By Enrico Perla B.Sc. Computer Science University of Torino M.Sc. Computer Science Trinity College Dublin, Massimiliano Oldani

A advisor to Kernel Exploitation: Attacking the center discusses the theoretical strategies and ways had to strengthen trustworthy and potent kernel-level exploits, and applies them to assorted working platforms, specifically, UNIX derivatives, Mac OS X, and home windows. innovations and strategies are offered categorically in order that even if a particularly distinct vulnerability has been patched, the foundational details supplied may also help hackers in writing a more recent, larger assault; or support pen testers, auditors, etc boost a extra concrete layout and protecting constitution.
The ebook 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 booklet. half II makes a speciality of various working structures and describes exploits for them that concentrate on a number of computer virus sessions. half III on distant kernel exploitation analyzes the consequences of the distant situation and provides new thoughts to focus on distant concerns. It contains 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 long run could hold.

  • Covers quite a number working procedure households ― UNIX derivatives, Mac OS X, Windows
  • Details universal eventualities similar to common 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 specialize in the stairs that bring about the construction of winning concepts, in an effort to provide to the reader anything greater than only a set of tricks

Show description

Read or Download A Guide to Kernel Exploitation: Attacking the Core PDF

Similar hacking books

Coding Freedom: The Ethics and Aesthetics of Hacking

Who are laptop hackers? what's unfastened software program? And what does the emergence of a group devoted to the creation of unfastened and open resource software--and to hacking as a technical, aesthetic, and ethical project--reveal concerning the values of latest liberalism? Exploring the increase and political value of the unfastened and open resource software program (F/OSS) stream within the usa and Europe, Coding Freedom info the ethics at the back of hackers' devotion to F/OSS, the social codes that advisor its construction, and the political struggles in which hackers query the scope and course of copyright and patent legislations. In telling the tale of the F/OSS circulate, the e-book unfolds a broader narrative concerning computing, the politics of entry, and highbrow estate.

E. Gabriella Coleman tracks the ways that hackers collaborate and examines passionate manifestos, hacker humor, loose software program venture governance, and festive hacker meetings. taking a look at the ways in which hackers maintain their effective freedom, Coleman indicates that those activists, pushed by way of a dedication to their paintings, reformulate key beliefs together with unfastened speech, transparency, and meritocracy, and refuse restrictive highbrow protections. Coleman demonstrates how hacking, so usually marginalized or misunderstood, sheds gentle at the carrying on with relevance of liberalism in on-line collaboration.

Sockets, Shellcode, Porting, & Coding: Reverse Engineering Exploits and Tool Coding for Security Professionals

The ebook is logically divided into five major different types with each one classification representing an immense ability set required via such a lot protection professionals:

1. Coding - the facility to software and script is readily turning into a mainstream requirement for almost every person within the protection undefined. This part covers the fundamentals in coding complemented with a slue of programming assistance and tips in C/C++, Java, Perl and NASL.

2. Sockets - The expertise that permits courses and scripts to speak over a community is sockets. even if the speculation continues to be a similar - conversation over TCP and UDP, sockets are carried out another way in approximately ever language.

3. Shellcode - Shellcode, normally outlined as bytecode switched over from meeting, is applied to execute instructions on distant structures through direct reminiscence access.

4. Porting - as a result of transformations among working structures and language implementations on these systems, it's a universal perform to change an unique physique of code to paintings on a unique systems. this method is called porting and is significant necessary within the actual international environments because it lets you now not "recreate the wheel. ”

5. Coding instruments - The end result of the former 4 sections, coding instruments brings all the recommendations that you've realized to the vanguard. With the history applied sciences and strategies you'll now be ready to code speedy utilities that won't in simple terms make you extra efficient, they are going to arm you with a very useful ability that would stay with you so long as you're making the correct effort and time dedications.

*Contains by no means sooner than noticeable chapters on writing and automating exploits on home windows platforms with all-new exploits.

*Perform zero-day make the most forensics by means of opposite engineering malicious code.

*Provides operating code and scripts in the entire most typical programming languages for readers to take advantage of at the present time to guard their networks.

DarkMarket: Cyberthieves, Cybercops and You

"This terribly strong e-book demonstrates how totally we lack the shared supranational instruments had to struggle cybercrime. crucial examining. " --Roberto Saviano, writer of Gommorah

The merits of residing in a electronic, globalized society are huge, immense; so too are the hazards. the realm has turn into a legislation enforcer’s nightmare and each criminal’s dream. We financial institution on-line; store on-line; date, study, paintings and reside on-line. yet have the associations that maintain us secure at the streets realized to guard us within the burgeoning electronic global? Have we develop into complacent approximately our own security—sharing our strategies, ideals and the main points of our day-by-day lives with someone who may well care to alleviate us of them?
In this interesting and compelling ebook, Misha Glenny, writer of the overseas most sensible vendor McMafia, explores the 3 primary threats dealing with us within the twenty-first century: cybercrime, cyberwarfare and cyberindustrial espionage. Governments and the non-public zone are wasting billions of greenbacks every year scuffling with an ever-morphing, frequently invisible and sometimes supersmart new breed of legal: the hacker.
Glenny has traveled and trawled the realm. through exploring the increase and fall of the felony site DarkMarket he has exposed the main vibrant, alarming and illuminating tales. even if JiLsi or Matrix, Iceman, grasp Splynter or Lord Cyric; even if Detective Sergeant Chris Dawson in Scunthorpe, England, or Agent Keith Mularski in Pittsburgh, Pennsylvania, Glenny has tracked down and interviewed the entire players—the criminals, the geeks, the police, the safety specialists and the victims—and he areas all people and every little thing in a wealthy brew of politics, economics and background.
The result's easily unputdownable. DarkMarket is authoritative and entirely engrossing. It’s a must-read for everybody who makes use of a working laptop or computer: the fundamental crime booklet for our occasions.

2600 The Hacker Quarterly (Winter)

2600 journal is the world's most advantageous magazine on machine hacking and technological manipulation and keep watch over. released through hackers when you consider that 1984, 2600 is a real window into the minds of a few of trendy so much inventive and clever humans. The de facto voice of a brand new new release, this book has its finger at the pulse of the ever-changing electronic panorama.

Extra resources for A Guide to Kernel Exploitation: Attacking the Core

Example text

As an example, 29 30 CHAPTER 2 A Taxonomy of Kernel Vulnerabilities take a look at the following code (taken from a vulnerable path that affected the OpenSolaris kernel;6 the code is condensed here to improve readability): static int64_t kaioc(long a0, long a1, long a2, long a3, long a4, long a5) { […] switch ((int)a0 & ~AIO_POLL_BIT) { […] case AIOSUSPEND: error = aiosuspend((void *)a1, (int)a2, (timespec_t *)a3, (int)a4, &rval, AIO_64); break; […] [1] /*ARGSUSED*/ static int aiosuspend(void *aiocb, int nent, struct timespec *timout, int flag, long *rval, int run_mode) { […] size_t ssize; […] aiop = curproc->p_aio; if (aiop == NULL || nent <= 0) [2] return (EINVAL); if (model == DATAMODEL_NATIVE) ssize = (sizeof (aiocb_t *) * nent); else ssize = (sizeof (caddr32_t) * nent); […] cbplist = kmem_alloc(ssize, KM_NOSLEEP) if (cbplist == NULL) return (ENOMEM); if (copyin(aiocb, cbplist, ssize)) { error = EFAULT; goto done; } […] if (aiop->aio_doneq) { if (model == DATAMODEL_NATIVE) ucbp = (aiocb_t **)cbplist; else ucbp32 = (caddr32_t *)cbplist; […] for (i = 0; i < nent; i++) { if (model == DATAMODEL_NATIVE) { if ((cbp = *ucbp++) == NULL) [3] [4] [5] Integer Issues In the preceding code, kaioc() is a system call of the OpenSolaris kernel that a user can call without any specific privileges to manage asynchronous I/O.

While the pointer is uninitialized, its value is whatever value resides in the memory assigned to hold the pointer variable. People already familiar with writing exploits (or who have an exploit-oriented mindset) might be wondering if it is possible to predict the value of that memory and use it to their advantage. The answer is yes, in many cases it is (or, at least, it is possible to have an idea of the range). For instance, consider a pointer declared as a local variable, as shown in the following code.

This is just a starting point for what the software should do, but where should you put this power? Which entity should have such a degree of control and influence over all the other applications? The answer is: the kernel. WHY DOESN’T MY USER-LAND EXPLOIT WORK ANYMORE? ), and they have found that the kernel has been one of the most effective places in which to implement those countermeasures. com) for the Linux kernel, or the security enhancements in, for example, OpenBSD (W^X, Address Space Layout Randomization [ASLR]) or Windows (data execution prevention, ASLR), to get an idea how high the barrier has been raised for user-land exploit developers.

Download PDF sample

Rated 4.58 of 5 – based on 46 votes