HTACCESS RULES FOR WORDPRESS SECURITY

# Block access to the .htaccess file

<files .htaccess>

order allow,deny

deny from all

</files>

# No web server version and indexes

ServerSignature Off

Options -Indexes

Options FollowSymLinks

# drop Range header when more than 5 ranges.

# CVE-2011-3192

SetEnvIf Range (,.*?){5,} bad-range=1

RequestHeader unset Range env=bad-range

# optional logging.

#CustomLog insert-path-and-name-of-log common env=bad-range

# Don’t allow any pages to be framed – Defends against CSRF

Header set X-Frame-Options DENY

# prevent mime based attacks

Header set X-Content-Type-Options “nosniff”

# Only allow JavaScript from the same domain to be run.

# Don’t allow inline JavaScript to run.

Header set X-Content-Security-Policy “allow ‘self’;”

# Turn on IE8-IE9 XSS prevention tools

Header set X-XSS-Protection “1; mode=block”

# Block the include-only files.

<IfModule mod_rewrite.c>

RewriteEngine On

RewriteBase /

RewriteRule ^wp-admin/includes/ – [F,L]

RewriteRule !^wp-includes/ – [S=3]

RewriteRule ^wp-includes/[^/]+\.php$ – [F,L]

RewriteRule ^wp-includes/js/tinymce/langs/.+\.php – [F,L]

RewriteRule ^wp-includes/theme-compat/ – [F,L]

</IfModule>

<IfModule mod_rewrite.c>

# Enable rewrite engine

RewriteEngine On

# Block suspicious request methods

RewriteCond %{REQUEST_METHOD} ^(HEAD|TRACE|DELETE|TRACK|DEBUG) [NC]

RewriteRule ^(.*)$ – [F,L]

# Block WP timthumb hack

RewriteCond %{REQUEST_URI} (timthumb\.php|phpthumb\.php|thumb\.php|thumbs\.php) [NC]

RewriteRule . – [S=1]

# Block suspicious user agents and requests

RewriteCond %{HTTP_USER_AGENT} (libwww-perl|wget|python|nikto|curl|scan|java|winhttp|clshttp|loader) [NC,OR]

RewriteCond %{HTTP_USER_AGENT} (<|>|’|%0A|%0D|%27|%3C|%3E|%00) [NC,OR]

RewriteCond %{HTTP_USER_AGENT} (;|<|>|’|”|\)|\(|%0A|%0D|%22|%27|%28|%3C|%3E|%00).*(libwww-perl|wget|python|nikto|curl|scan|java|winhttp|HTTrack|clshttp|archiver|loader|email|harvest|extract|grab|miner) [NC,OR]

RewriteCond %{THE_REQUEST} \?\ HTTP/ [NC,OR]

RewriteCond %{THE_REQUEST} \/\*\ HTTP/ [NC,OR]

RewriteCond %{THE_REQUEST} etc/passwd [NC,OR]

RewriteCond %{THE_REQUEST} cgi-bin [NC,OR]

RewriteCond %{THE_REQUEST} (%0A|%0D) [NC,OR]

# Block MySQL injections, RFI, base64, etc.

RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=http:// [OR]

RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=http%3A%2F%2F [OR]

RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=(\.\.//?)+ [OR]

RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=/([a-z0-9_.]//?)+ [NC,OR]

RewriteCond %{QUERY_STRING} \=PHP[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} [NC,OR]

RewriteCond %{QUERY_STRING} (\.\./|\.\.) [OR]

RewriteCond %{QUERY_STRING} ftp\: [NC,OR]

RewriteCond %{QUERY_STRING} http\: [NC,OR]

RewriteCond %{QUERY_STRING} https\: [NC,OR]

RewriteCond %{QUERY_STRING} \=\|w\| [NC,OR]

RewriteCond %{QUERY_STRING} ^(.*)/self/(.*)$ [NC,OR]

RewriteCond %{QUERY_STRING} ^(.*)cPath=http://(.*)$ [NC,OR]

RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]

RewriteCond %{QUERY_STRING} (<|%3C)([^s]*s)+cript.*(>|%3E) [NC,OR]

RewriteCond %{QUERY_STRING} (\<|%3C).*iframe.*(\>|%3E) [NC,OR]

RewriteCond %{QUERY_STRING} (<|%3C)([^i]*i)+frame.*(>|%3E) [NC,OR]

RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [NC,OR]

RewriteCond %{QUERY_STRING} base64_(en|de)code[^(]*\([^)]*\) [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} ^.*(\[|\]|\(|\)|<|>).* [NC,OR]

RewriteCond %{QUERY_STRING} (NULL|OUTFILE|LOAD_FILE) [OR]

RewriteCond %{QUERY_STRING} (\./|\../|\…/)+(motd|etc|bin) [NC,OR]

RewriteCond %{QUERY_STRING} (localhost|loopback|127\.0\.0\.1) [NC,OR]

RewriteCond %{QUERY_STRING} (<|>|’|%0A|%0D|%27|%3C|%3E|%00) [NC,OR]

RewriteCond %{QUERY_STRING} concat[^\(]*\( [NC,OR]

RewriteCond %{QUERY_STRING} union([^s]*s)+elect [NC,OR]

RewriteCond %{QUERY_STRING} union([^a]*a)+ll([^s]*s)+elect [NC,OR]

RewriteCond %{QUERY_STRING} (;|<|>|’|”|\)|%0A|%0D|%22|%27|%3C|%3E|%00).*(/\*|union|select|insert|drop|delete|update|cast|create|char|convert|alter|declare|order|script|set|md5|benchmark|encode) [NC,OR]

# PHP-CGI Vulnerability

RewriteCond %{QUERY_STRING} ^(%2d|\-)[^=]+$ [NC,OR]

#proc/self/environ? no way!

RewriteCond %{QUERY_STRING} proc\/self\/environ [NC,OR]

RewriteCond %{QUERY_STRING} (sp_executesql) [NC]

RewriteRule ^(.*)$ – [F,L]

</IfModule>

# deny access to wp-config.php

<files wp-config.php>

order allow,deny

deny from all

</files>

# deny access to xmlrpc.php

<Files xmlrpc.php>

Order Deny,Allow

Deny from all

</Files>

#Block WP info

<Files readme.html>

Order allow,deny

Deny from all

</Files>

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