############################################################################ ## SQL Injection Block ## RewriteBase / RewriteCond %{REQUEST_METHOD} ^(HEAD|TRACE|DELETE|TRACK) [NC] RewriteRule ^(.*)$ - [F,L] 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} (\|%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} ^.*(\[|\]|$|$||ê|"|;|\?|\*|=$).* [NC,OR] RewriteCond %{QUERY_STRING} ^.*("|'|<|>|\|{||).* [NC,OR] RewriteCond %{QUERY_STRING} ^.*(%24&x).* [NC,OR] RewriteCond %{QUERY_STRING} ^.*(%0|%A|%B|%C|%D|%E|%F|127\.0).* [NC,OR] RewriteCond %{QUERY_STRING} ^.*(globals|encode|localhost|loopback).* [NC,OR] RewriteCond %{QUERY_STRING} ^.*(request|select|insert|union|declare).* [NC] RewriteCond %{HTTP_COOKIE} !^.*wordpress_logged_in_.*$ RewriteRule ^(.*)$ - [F,L] ####################################################################### # I'm using this for sometime and it never failed me: RewriteCond %{QUERY_STRING} DECLARE [NC] RewriteRule !403\.html$ - [F] RewriteCond %{QUERY_STRING} SELECT [NC] RewriteRule !403\.html$ - [F] RewriteCond %{QUERY_STRING} UPDATE [NC] RewriteRule !403\.html$ - [F] RewriteCond %{QUERY_STRING} DELETE [NC] RewriteRule !403\.html$ - [F] RewriteCond %{QUERY_STRING} TRUNCATE [NC] RewriteRule !403\.html$ - [F] RewriteCond %{QUERY_STRING} DROP [NC] RewriteRule !403\.html$ - [F] ##################################################### #1 RewriteCond %{QUERY_STRING} [^a-z] (declare¦char¦set¦cast¦convert¦delete¦drop¦exec¦insert¦meta¦script¦select¦truncate¦update)[^a-z] [NC] RewriteRule (.*) - [F] #2 RewriteCond %{REQUEST_URI} KEYWORD RewriteRule ^(.*)$ - [F,L] # ##################################################### # Script: htaccess Security # # Version: 1.0 # # ### Changelog ### # # v1.0 - 2012-02-14 # ##################################################### # No web server version and indexes ServerSignature Off Options -Indexes # 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_]=(\.\.//?)+ [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} (;|<|>|'|"|$|%0A|%0D|%22|%27|%3C|%3E|%00).*(/\*|union|select|insert|drop|delete|update|cast|create|char|convert|alter|declare|order|script|set|md5|benchmark|encode) [NC,OR] RewriteCond %{QUERY_STRING} (sp_executesql) [NC] RewriteRule ^(.*)$ - [F,L] # Deny browser access to config files Order allow,deny Deny from all #Allow from 1.2.3.4 ####################################################################### RewriteEngine On # -------------------------------------------------------------------- # SQL Injection Protection # -------------------------------------------------------------------- RewriteRule ^.*EXEC\(@.*$ - [R=404,L,NC] RewriteRule ^.*CAST\(.*$ - [R=404,L,NC] RewriteRule ^.*DECLARE.*$ - [R=404,L,NC] RewriteRule ^.*DECLARE%20.*$ - [R=404,L,NC] RewriteRule ^.*NVARCHAR.*$ - [R=404,L,NC] RewriteRule ^.*sp_password.*$ - [R=404,L,NC] RewriteRule ^.*%20xp_.*$ - [R=404,L,NC] ####################################################################### # vi /etc/httpd/conf.d/mod_security.conf # Example configuration file for the mod_security Apache module LoadModule security_module modules/mod_security.so # Turn the filtering engine On or Off SecFilterEngine On # The audit engine works independently and # can be turned On of Off on the per-server or # on the per-directory basis SecAuditEngine RelevantOnly # Make sure that URL encoding is valid SecFilterCheckURLEncoding On # Unicode encoding check SecFilterCheckUnicodeEncoding On # Only allow bytes from this range SecFilterForceByteRange 1 255 # Cookie format checks. SecFilterCheckCookieFormat On # The name of the audit log file SecAuditLog logs/audit_log # Should mod_security inspect POST payloads SecFilterScanPOST On # Default action set SecFilterDefaultAction "deny,log,status:406" # Simple example filter # SecFilter 111 # Prevent path traversal (..) attacks # SecFilter "\.\./" # Weaker XSS protection but allows common HTML tags # SecFilter "<( |\n)*script" # Prevent XSS atacks (HTML/Javascript injection) # SecFilter "<(.|\n)+>" # Very crude filters to prevent SQL injection attacks # SecFilter "delete[[:space:]]+from" # SecFilter "insert[[:space:]]+into" # SecFilter "select.+from" # Require HTTP_USER_AGENT and HTTP_HOST headers SecFilterSelective "HTTP_USER_AGENT|HTTP_HOST" "^$" # Only accept request encodings we know how to handle # we exclude GET requests from this because some (automated) # clients supply "text/html" as Content-Type SecFilterSelective REQUEST_METHOD "!^GET$" chain SecFilterSelective HTTP_Content-Type "!(^$|^application/x-www-form-urlencoded$|^multipart/form-data)" # Require Content-Length to be provided with # every POST request SecFilterSelective REQUEST_METHOD "^POST$" chain SecFilterSelective HTTP_Content-Length "^$" # Don't accept transfer encodings we know we don't handle # (and you don't need it anyway) SecFilterSelective HTTP_Transfer-Encoding "!^$" # Some common application-related rules from # http://modsecrules.monkeydev.org/rules.php?safety=safe #Nuke Bookmarks XSS SecFilterSelective THE_REQUEST "/modules\.php\?name=Bookmarks\&file=(del_cat\&catname|del_mark\&markname|edit_cat\&catname|edit_cat\&catcomment|marks\&catname|uploadbookmarks\&category)=(<[[:space:]]*script|(http|https|ftp)\:/)" #Nuke Bookmarks Marks.php SQL Injection Vulnerability SecFilterSelective THE_REQUEST "modules\.php\?name=Bookmarks\&file=marks\&catname=.*\&category=.*/\*\*/(union|select|delete|insert)" #PHPNuke general XSS attempt #/modules.php?name=News&file=article&sid=1&optionbox= SecFilterSelective THE_REQUEST "/modules\.php\?*name=<[[:space:]]*script" # PHPNuke SQL injection attempt SecFilterSelective THE_REQUEST "/modules\.php\?*name=Search*instory=" #phpnuke sql insertion SecFilterSelective THE_REQUEST "/modules\.php*name=Forums.*file=viewtopic*/forum=.*\'/" # WEB-PHP phpbb quick-reply.php arbitrary command attempt SecFilterSelective THE_REQUEST "/quick-reply\.php" chain SecFilter "phpbb_root_path=" #Topic Calendar Mod for phpBB Cross-Site Scripting Attack SecFilterSelective THE_REQUEST "/calendar_scheduler\.php\?start=(<[[:space:]]*script|(http|https|ftp)\:/)" # phpMyAdmin: Safe #phpMyAdmin Export.PHP File Disclosure Vulnerability SecFilterSelective SCRIPT_FILENAME "export\.php$" chain SecFilterSelective ARG_what "\.\." #phpMyAdmin path vln SecFilterSelective REQUEST_URI "/css/phpmyadmin\.css\.php\?GLOBALS\[cfg\]\[ThemePath\]=/etc"