[REVS] Analysis of the Exploitation Process

From: SecuriTeam (support_at_securiteam.com)
Date: 06/03/04

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    Date: 3 Jun 2004 11:33:03 +0200
    
    

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      Analysis of the Exploitation Process
    ------------------------------------------------------------------------

    SUMMARY

    The below linked tutorial was written by Covert Systems Research. It
    defines several of the common types of vulnerabilities together with their
    counterpart command line exploit sequences. The descriptions of these
    types of vulnerabilities range from stack to heap, function pointer and
    format string weaknesses. This white paper has been developed to help
    those seeking to improve their exploitation skills while also aiming to
    give the reader the knowledge for a more surgical aspect to manipulating
    vulnerable programs.

    DETAILS

    Forward:
    In this document, I [Steven Hill] aim to clear the mystique surrounding
    the process for exploiting certain vulnerabilities, of which blackhats use
    in order to gain either horizontal or vertical escalation of privileges.
    This document shall not be in anyway complete, but rather a step for those
    seeking to gain a better understanding of how these exploitation process
    are used to achieve those goals.

    It is assumed that the reader has a basic understanding of C, ASM, GDB and
    of shellcoding principals together with memory layout for use with x86
    Linux.

    For the purposes of this document, we shall explore the world of command
    line exploit sequences. This should give a better understanding of
    exploitation methods in the sense that surgical commands are issued, and
    we are not just relying on ready made exploits that does the job for you.

    However, by having a better understanding of how the exploitation
    sequences work, a reasonable coder should be in a better position to
    create working exploit codes.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:steve@covertsystems.org>
    Steven Hill aka SolarIce.
    The tutorial can be found at:
    <http://www.covertsystems.org/archives/misc-papers/csr-exploitation.pdf>
    http://www.covertsystems.org/archives/misc-papers/csr-exploitation.pdf.

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