Environment use to inject shellcode

[Daniele Endlesstars <endlesstars () gmail com>]

In all the basic tutorial on buffer overflow the use of an environment
variable is suggested as a way to exceed the limit of a small buffer
in order to hold the shellcode and, mainly, the nopsled. I've devised
a naive way to avoid the limitation imposed on single environment
variables by chaining several together and using the resulting large
(>2 MB) nopsled to counter ASLR. I can't seem to find suggestions to
do this on the web, so I'm wondering if this is this a practice so
common that it's not even worth mentioning or if it's, altough not
really important, something new. Can someone more expert enlighten me?

Thanks,

Daniele

------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------