john.h.hoyt (at) gmail (dot) com [email concealed] wrote:
> Could someone explain to me simply how the HTTP POST method is used to overwrite a PHP global variable, and how this might be used as an attack?
Not sure if you mean the standard register_globals behavior or the
?GLOBALS[foo] one. In the second case here's some documentation:
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.
> Could someone explain to me simply how the HTTP POST method is used to overwrite a PHP global variable, and how this might be used as an attack?
Not sure if you mean the standard register_globals behavior or the
?GLOBALS[foo] one. In the second case here's some documentation:
http://www.ush.it/2006/01/25/php5-globals-vulnerability/
http://www.ush.it/2006/01/24/pmwiki-multiple-vulnerabilities/
http://www.hardened-php.net/advisory_172005.75.html
Bye,
Francesco `ascii` Ongaro
http://www.ush.it/
------------------------------------------------------------------------
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;e13b6be442
f727d1
------------------------------------------------------------------------
[ reply ]