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?
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.
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
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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.
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