Download Hacking: The Art of Exploitation (2nd Edition) by Jon Erickson PDF

By Jon Erickson

Hacking is the artwork of inventive challenge fixing, even if that implies discovering an unconventional option to a tough challenge or exploiting holes in sloppy programming. many folks name themselves hackers, yet few have the powerful technical beginning had to relatively push the envelope.

instead of basically exhibiting the way to run current exploits, writer Jon Erickson explains how arcane hacking ideas truly paintings. To proportion the paintings and technology of hacking in a fashion that's available to each person, Hacking: The paintings of Exploitation, 2d version introduces the basics of C programming from a hacker's perspective.

The incorporated LiveCD presents a whole Linux programming and debugging environment-all with no editing your present working approach. Use it to stick with in addition to the book's examples as you fill gaps on your wisdom and discover hacking concepts by yourself. Get your arms soiled debugging code, overflowing buffers, hijacking community communications, bypassing protections, exploiting cryptographic weaknesses, and maybe even inventing new exploits. This e-book will educate you ways to:
* software pcs utilizing C, meeting language, and shell scripts

* Corrupt approach reminiscence to run arbitrary code utilizing buffer overflows and layout strings

* check out processor registers and method reminiscence with a debugger to achieve a true knowing of what's happening

* Outsmart universal safety features like nonexecutable stacks and intrusion detection systems

* achieve entry to a distant server utilizing port-binding or connect-back shellcode, and change a server's logging habit to conceal your presence

* Redirect community site visitors, disguise open ports, and hijack TCP connections

* Crack encrypted instant site visitors utilizing the FMS assault, and accelerate brute-force assaults utilizing a password chance matrix

Hackers are constantly pushing the bounds, investigating the unknown, and evolving their artwork. whether you don't already know the way to software, Hacking: The paintings of Exploitation, 2d variation provide you with an entire photograph of programming, computer structure, community communications, and latest hacking options. mix this data with the integrated Linux atmosphere, and all you wish is your individual creativity.

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Additional info for Hacking: The Art of Exploitation (2nd Edition)

Sample text

The first address of 0x8048393 (shown in bold) is simply the instruction found after the fixed jump instruction, and the second address of 0x80483a6 (shown in italics) is located at the end of the function. Since we know the value 0 is stored in the memory location being compared with the value 9, and we know that 0 is less than or equal to 9, EIP should be at 0x8048393 after executing the next two instructions. \n"); (gdb) i r eip eip 0x8048393 0x8048393 (gdb) x/2i $eip 0x8048393 : mov DWORD PTR [esp],0x8048484 0x804839a : call 0x80482a0 (gdb) As expected, the previous two instructions let the program execution flow down to 0x8048393, which brings us to the next two instructions.

Isn’t very useful to anything other than the processor, the machine code is displayed as hexadecimal bytes and each instruction is put on its own line, like splitting a paragraph into sentences. Come to think of it, the hexadecimal bytes really aren’t very useful themselves, either—that’s where assembly language comes in. The instructions on the far right are in assembly language. Assembly language is really just a collection of mnemonics for the corresponding machine language instructions. The instruction ret is far easier to remember and make sense of than 0xc3 or 11000011.

This operator exists both in GDB and in the C programming language. \n" (gdb) When the address-of operator is used, the pointer variable is shown to be located at the address 0xbffff7dc in memory, and it contains the address 0xbffff7e0. The address-of operator is often used in conjunction with pointers, since pointers contain memory addresses. c program demonstrates the address-of operator being used to put the address of an integer variable into a pointer. This line is shown in bold below. h> int main() { int int_var = 5; int *int_ptr; int_ptr = &int_var; // put the address of int_var into int_ptr } The program itself doesn’t actually output anything, but you can probably guess what happens, even before debugging with GDB.

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