Writing Security Tools and Exploits

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  • October 13, 2016
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Writing protection instruments and Exploits may be the top-rated authority on vulnerability and safeguard code and may function the leading academic reference for safeguard pros and software program builders. The e-book may have over six hundred pages of committed make the most, vulnerability, and power code with corresponding guide. in contrast to different safety and programming books that commit 1000's of pages to structure and conception dependent flaws and exploits, this publication will dive correct into deep code research. formerly undisclosed safety study together with more advantageous programming innovations might be integrated in either the neighborhood and distant Code sections of the e-book.

The booklet could be followed with a better half site containing either commented and uncommented types of the resource code examples provided in the course of the booklet. as well as the e-book resource code, the CD also will comprise a replica of the author-developed Hacker Code Library v1.0. The Hacker Code Library will contain a number of assault sessions and services that may be applied to speedy create protection courses and scripts. those periods and services will simplify make the most and vulnerability software improvement to an volume by no means earlier than attainable with publicly to be had software program.

* offers readers with operating code to enhance and alter the most typical safeguard instruments together with Nmap and Nessus
* learn how to opposite engineer and write exploits for varied working platforms, databases, and applications
* Automate reporting and research of protection log documents

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151 OpenBSD 2. eight FTP Daemon Off-by-one . . . . . . . . . . . 151 Apache htpasswd Buffer Overflow . . . . . . . . . . . . . . . . 152 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 recommendations speedy tune . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a hundred and fifty five hyperlinks to websites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 commonly asked Questions . . . . . . . . . . . . . . . . . . . . . . . 157 Mailing Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 bankruptcy four Exploits: Heap . . . . . . . . . . . . . . . . . . . . . . . 161 creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 uncomplicated Heap Corruption . . . . . . . . . . . . . . . . . . . . . . . . . . 162 utilizing the Heap—malloc(), calloc(), realloc() . . . . . . . . . . . 163 uncomplicated Heap and BSS Overflows . . . . . . . . . . . . . . . . . one hundred sixty five Corrupting functionality guidelines in C++ . . . . . . . . . . . . . 167 complicated Heap Corruption—dlmalloc . . . . . . . . . . . . . . . . 169 evaluation of Doug Lea malloc . . . . . . . . . . . . . . . . . . . a hundred and seventy reminiscence association— Boundary Tags, boxes, and Arenas . . . . . . . . . . . . . . . . . . 171 The free() set of rules . . . . . . . . . . . . . . . . . . . . . . . . . . a hundred seventy five faux Chunks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 instance susceptible application . . . . . . . . . . . . . . . . . . . . 179 Exploiting frontlink() . . . . . . . . . . . . . . . . . . . . . . . . . . 181 Off-by-one and Off-by-five at the Heap . . . . . . . . . . . 183 complex Heap Corruption—System V malloc . . . . . . . . . 184 approach V malloc Operation . . . . . . . . . . . . . . . . . . . . . 184 Tree constitution . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 releasing reminiscence . . . . . . . . . . . . . . . . . . . . . . . . . . 186 The realfree() functionality . . . . . . . . . . . . . . . . . . . . . . 188 The t_delete Function—The Exploitation element . . . . a hundred ninety program safety! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 solving Heap Corruption Vulnerabilities within the resource . . 193 precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 recommendations speedy tune . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 commonly asked Questions . . . . . . . . . . . . . . . . . . . . . . . 199 Contents bankruptcy five Exploits: layout Strings . . . . . . . . . . . . . . . 201 creation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 what's a structure String? . . . . . . . . . . . . . . . . . . . . . . . . . 202 C capabilities with Variable Numbers of Arguments . . . . 203 Ellipsis and va_args . . . . . . . . . . . . . . . . . . . . . . . . . 203 services of Formatted Output . . . . . . . . . . . . . . . . 206 utilizing layout Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 printf() instance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 structure Tokens and printf() Arguments . . . . . . . . . . . . . . 209 different types of layout Specifiers . . . . . . . . . . . . . . . . . . . . . . 210 Abusing layout Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 twiddling with undesirable layout Strings . . . . . . . . . . . . . . . . . 214 Denial of provider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 Direct Argument entry . . . . . . . . . . . . . . . . . . . . . 215 analyzing reminiscence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Writing to reminiscence . . . . . . . . . . . . . . . . . . . . . . . . . . 218 uncomplicated Writes to reminiscence . . . . . . . . . . . . . . . . . . . 218 a number of Writes . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 demanding situations in Exploiting structure String insects . . . . . . . . . . . 223 discovering layout String insects . . . . . . . . . . . . . . . . . . . . . 224 What to Overwrite . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Destructors in . dtors . . . . . . . . . . . . . . . . . . . . . . . . 227 worldwide Offset desk Entries . . . . . . . . . . . . . . . . . . . 229 established Exception Handlers . . . . . . . . . . . . . . . . 230 problems Exploiting diversified platforms . . . . . . . . . . . .

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