Recommended basic htaccess rules

November 19, 2011     0 comments

We recommend adding the following in a .htaccess file if your site uses a CR system such as WordPress, Joomla,, Drupal, etc.

# QUERY STRING EXPLOITS 
RewriteCond %{QUERY_STRING} \.\.\/ [NC,OR] 
RewriteCond %{QUERY_STRING} boot\.ini [NC,OR] 
RewriteCond %{QUERY_STRING} tag\= [NC,OR] 
RewriteCond %{QUERY_STRING} ftp\:  [NC,OR] 
RewriteCond %{QUERY_STRING} http\:  [NC,OR] 
RewriteCond %{QUERY_STRING} https\:  [NC,OR]
RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]
RewriteCond %{QUERY_STRING} (\<|%3C).*iframe.*(\>|%3E) [NC,OR] 
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|%3D) [NC,OR]
RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [NC,OR]
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2}) [OR]
RewriteCond %{QUERY_STRING} ^(.*)cPath=http://(.*)$ [NC,OR] 
RewriteCond %{QUERY_STRING} ^(.*)/self/(.*)$ [NC,OR]
RewriteCond %{QUERY_STRING} ^.*(\[|\]|\(|\)|<|>).* [NC,OR] 
RewriteCond %{QUERY_STRING} ^.*(globals|encode|localhost|loopback).* [NC,OR] 
RewriteCond %{QUERY_STRING} ^.*(execute|exec|sp_executesql|request|select|insert|union|declare|drop|delete|create|alter|update|order|char|set|cast|convert|meta|script|truncate).* [NC] 
RewriteRule ^(.*)$ - [F,L]

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