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

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

by James C Foster
April 2005
Intermediate to advanced content levelIntermediate to advanced
700 pages
20h 39m
English
Syngress
Content preview from Sockets, Shellcode, Porting, and Coding: Reverse Engineering Exploits and Tool Coding for Security Professionals
Bugtraq@securityfocus.com
Focus-MS@securityfocus.com
Pen-Test@securityfocus.com
Q: I’ve heard that shellcode that contains NULL bytes is useless. Is this true?
A: The answer depends on how the shellcode is used. If the shellcode is injected
into an application via a function that uses NULL bytes as string terminators, it
is useless. However, there are often many other ways to inject shellcode into a
program without having to worry about NULL bytes.You can, for example, put
the shellcode in an environment variable when trying to exploit a local program.
Q: My shellcode contains all kinds of bytes that cause it to be rejected by the appli-
cation I’m ...
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Publisher Resources

ISBN: 9781597490054