WordPress Security Review

[Webnauts]

The last days I have setup a new blog with Wordpress, I dofollow (do not use rel=nofollow" at all) and being very concerned about spam and security, I did so far the following:

I install and configured the WP plugins:

• Askimet
• Bad Behaviour
• httpBL
• Spam Karma2
• WP-SpamFree
• WP Security Scan (fixed all findings, but not the WP-Admin folder .htaccess yet)

Then I added in my .htaccess file the following rules, which should be safe and may not break any plugins:

##################################################
############# Created by John. S. Britsios (aka Webnauts) ############
############# http://www.seoworkers.com    ####################
#####################################################  

##### Security settings #####

## LIMIT UPLOAD FILE SIZE TO PROTECT AGAINST DOS ATTACK by limiting file size to 0-2147483647 bytes, (2GB)###
LimitRequestBody 10240000 

### Prevent .htaccess, .htpasswd and other files from being viewed by web clients ###                     
<FilesMatch "\.(htaccess|htpasswd|ini|phps|fla|psd|log|sh)$">
  Order Allow,Deny
  Deny from all
</FilesMatch>

### Server Signatures ###
ServerSignature Off

### Safe Request Methods - Denies any request not using GET,PROPFIND,POST,OPTIONS,PUT,HEAD ###
RewriteCond %{REQUEST_METHOD} !^(GET|HEAD|POST|PROPFIND|OPTIONS|PUT)$ [NC]
RewriteRule .* - [F,NS,L]

### Injection Attack: DECLARE, SET and CAST. More: http://www.informationtechnologymanager.net/?p=25 ###
RewriteEngine On
Options +FollowSymLinks
ServerSignature Off
RewriteCond %{REQUEST_URI} ^/(,|;|:|<|>|”>|”<|/|\\\.\.\\).{0,9999}.* [NC,OR]
RewriteCond %{QUERY_STRING} ^.*(;|<|>|’|”|\)|%0A|%0D|%22|%27|%3C|%3E|%00).*(/\*|union|select|insert|cast|set|declare|drop|update|md5|benchmark).* [NC,OR]
RewriteCond %{QUERY_STRING} ^.*(<|>|’|%0A|%0D|%27|%3C|%3E|%00).* [NC]
RewriteRule ^(.*)$ http://www.fuckyourselfyousoneofabitch.com

### Real wp-comments-post.php - Denies any POST attempt made to a non-existing wp-comments-post.php ###
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /.*/wp-comments-post\.php.*\ HTTP/ [NC]
RewriteRule .* - [F,NS,L]

### HTTP PROTOCOL - Denies any badly formed HTTP PROTOCOL in the request, 0.9, 1.0, and 1.1 only ###
RewriteCond %{THE_REQUEST} !^[A-Z]{3,9}\ .+\ HTTP/(0\.9|1\.0|1\.1) [NC]
RewriteRule .* - [F,NS,L]

### BAD Content Length - Denies any POST request that doesnt have a Content-Length Header ###
RewriteCond %{REQUEST_METHOD} =POST
RewriteCond %{HTTP:Content-Length} ^$
RewriteCond %{REQUEST_URI} !^/(wp-admin/|wp-content/plugins/|wp-includes/).* [NC]
RewriteRule .* - [F,NS,L]

### BAD Content Type - Denies any POST request with a content type other than application/x-www-form-urlencoded|multipart/form-data ###
RewriteCond %{REQUEST_METHOD} =POST
RewriteCond %{HTTP:Content-Type} !^(application/x-www-form-urlencoded|multipart/form-data.*(boundary.*)?)$ [NC]
RewriteCond %{REQUEST_URI} !^/(wp-login.php|wp-admin/|wp-content/plugins/|wp-includes/).* [NC]
RewriteRule .* - [F,NS,L]

### NO HOST - Denies requests that dont contain a HTTP HOST Header ###
RewriteCond %{REQUEST_URI} !^/(wp-login.php|wp-admin/|wp-content/plugins/|wp-includes/).* [NC]
RewriteCond %{HTTP_HOST} ^$
RewriteRule .* - [F,NS,L]

### Bogus Graphics Exploit - Denies obvious exploit using bogus graphics ###
RewriteCond %{HTTP:Content-Disposition} \.php [NC]
RewriteCond %{HTTP:Content-Type} image/.+ [NC]
RewriteRule .* - [F,NS,L]

### Deny Fake Bots ###
BrowserMatch "^Java/?[1-9_\.]*" bad_bot
BrowserMatch "^MJ12bot/?[1-9_\.]*" bad_bot
SetEnvIfNoCase User-Agent "^8484 Boston Project/?[1-9_\.]*" bad_bot
SetEnvIfNoCase User-Agent "charlotte/" bad_bot
SetEnvIfNoCase User-Agent "curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5" bad_bot
SetEnvifNoCase User-Agent "^Heritrix/" bad_bot
SetEnvIfNoCase User-Agent "ia_archiver" bad_bot
SetEnvIfNoCase User-Agent "larbin/" bad-bot
SetEnvIfNoCase User-Agent "libwww-perl"" bad_bot
SetEnvIfNoCase User-Agent "^libcurl-agent/" bad_bot
SetEnvifNoCase User-Agent "IRC-Bbot" bad_bot
SetEnvifNoCase User-Agent "ISC Systems iRc Search 2.1" bad_bot
SetEnvIfNoCase User-Agent "^Jakarta\ Commons-HttpClient/" bad_bot
SetEnvIfNoCase User-Agent "^Java/" bad_bot
SetEnvIfNoCase User-Agent "^Microsoft\ URL\ Control.*$" bad_bot
SetEnvIfNoCase User-Agent "^MJ12bot/" bad_bot
SetEnvIfNoCase User-Agent "MJ12bot/v1.0.8" bad_bot
SetEnvIfNoCase User-Agent "^Missigua Locator" bad_bot
SetEnvIfNoCase User-Agent "^Mozilla/4\.0\ .*Win\ 9x\ 4\.90.*$" bad_bot
SetEnvIfNoCase User-Agent "Nutch" bad_bot
SetEnvIfNoCase User-Agent "^PEAR HTTP_Request class" bad_bot
SetEnvIfNoCase User-Agent "phpversion" bad_bot
SetEnvIfNoCase User-Agent "^psycheclone" bad_bot
SetEnvIfNoCase User-Agent "^TencentTraveler" bad_bot
SetEnvIfNoCase User-Agent "^Web Downloader" bad_bot
SetEnvIfNoCase User-Agent "^Wells Search II" bad_bot
SetEnvIfNoCase User-Agent "^WEP Search 00" bad_bot
<Limit GET POST>
Order Allow,Deny
Allow from all
Deny from env=bad_bot
</Limit>

RewriteEngine on
RewriteBase /

# Known Bad Bots
RewriteCond %{HTTP_USER_AGENT} ADSARobot|ah-ha|almaden|aktuelles|Anarchie|amzn_assoc|Arachmo|ASPSeek|ASSORT|ATHENS|Atomz|attach|attache|autoemailspider|BackWeb|Bandit|BatchFTP|bdfetch|Bbot|BecomeBot|big.brother|Bitacle|BlackWidow|bmclient|boitho.com-dc|Boston\ Project|bot/1.0|BravoBrian\ SpiderEngine\ MarcoPolo|Bot\ mailto:craftbot@yahoo.com|Buddy|Bullseye|bumblebee|capture|CherryPicker|ChinaClaw|CICC|clipping|Clushbot|Collector|Copier|Crescent|Crescent\ Internet\ ToolPak|Custo|cyberalert|Deweb|diagem|Digger|Digimarc|DIIbot|DISCo|DISCo\ Pump|DISCoFinder|Download\ Demon|Download\ Wonder|Downloader|Drip|DSurf15a|DTS.Agent|EasyDL|eCatch|ecollector|efp@gmx\.net|Email\ Extractor|EirGrabber|email|EmailCollector|EmailSiphon|EmailWolf|Express\ WebPictures|ExtractorPro|EyeNetIE|FavOrg|fastlwspider|Favorites\ Sweeper|Fetch|FEZhead|FileHound|FlashGet\ WebWasher|FlickBot|fluffy|FrontPage|GalaxyBot|Generic|Getleft|GetRight|GetSmart|GetWeb!|GetWebPage|gigabaz|Girafabot|Go\!Zilla|Go!Zilla|Go-Ahead-Got-It|GornKer|gotit|Grabber|GrabNet|Grafula|Green\ Research|grub-client|Harvest|heritrix|hhjhj@yahoo|hloader|HMView|HomePageSearch|http\ generic|HTTrack|httpdown|httrack|ia_archiver|IBM_Planetwide|Image\ Stripper|Image\ Sucker|imagefetch|IncyWincy|Indy*Library|Indy\ Library|informant|Ingelin|InterGET|Internet\ Ninja|InternetLinkagent|Internet\ Ninja|InternetSeer\.com|Iria|Irvine|JBH*agent|JetCar|JOC|JOC\ Web\ Spider|JustView|kalooga|KWebGet|Lachesis|larbin|Leacher|LeechFTP|LexiBot|lftp|likse|Link|Link*Sleuth|LINKS\ ARoMATIZED|LinkWalker|LWP|lwp-trivial|Mag-Net|Magnet|Mac\ Finder|Mag-Net|Mass\ Downloader|MCspider|MJ12bot/v1\.0\.8|Memo|Microsoft.URL|MIDown\ tool|Mirror|Missigua\ Locator|Mister\ PiX|MMMtoCrawl\/UrlDispatcherLLL|monit|^Mozilla$|Mozilla.*Indy|Mozilla.*NEWT|Mozilla*MSIECrawler|MS\ FrontPage*|MSFrontPage|MSIECrawler|MSProxy|MSR-ISRCCrawler|multithreaddb|my-heritrix-crawler|nationaldirectory|Navroad|NearSite|NetAnts|NetCarta|NetMechanic|netprospector|NetResearchServer|NetSpider|Net\ Vampire|NetZIP|NetZip\ Downloader|NetZippy|NEWT|NICErsPRO|Ninja|NPBot|NicheBot|noxtrumbot|Octopus|Offline\ Explorer|Offline\ Navigator|OmniExplorer|OpaL|Openfind|OpenTextSiteCrawler|OrangeBot|PageGrabber|Papa\ Foto|PackRat|pavuk|pcBrowser|PersonaPilot|Ping|PingALink|Pingdom|Pockey|POE-Component-Client-HTTP|Powermarks|Proxy|psbot|PSurf|psycheclone|puf|Pump|PushSite|QRVA|RealDownload|Reaper|Recorder|ReGet|replacer|RepoMonkey|Robozilla|Rover|RPT-HTTPClient|Rsync|Scooter|SearchExpress|searchhippo|searchterms\.it|Second\ Street\ Research|Seeker|Shai|Siphon|sitecheck|sitecheck.internetseer.com|SiteSnagger|SlySearch|SmartDownload|snagger|Snake|SpaceBison|Spegla|SpiderBot|sproose|SqWorm|Stripper|Sucker|SuperBot|SuperHTTP|Surfbot|SurfWalker|Szukacz|tAkeOut|tarspider|Teleport\ Pro|Templeton|TencentTraveler|TrueRobot|TV33_Mercator|UIowaCrawler|UtilMind|URLSpiderPro|URL_Spider_Pro|Vacuum|vagabondo|vayala|visibilitygap|VoidEYE|vspider|Web\ Downloader|w3mir|Web\ Data\ Extractor|Web\ Image\ Collector|Web\ Sucker|Wweb|WebAuto|WebBandit|web\.by\.mail|Webclipping|webcollage|webcollector|WebCopier|webcraft@bea|webdevil|webdownloader|Webdup|WebEMailExtrac|WebFetch|WebGo\ IS|WebHook|Webinator|WebLeacher|WEBMASTERS|WebMiner|WebMirror|webmole|WebReaper|WebSauger|Website|Website\ eXtractor|Website\ Quester|WebSnake|Webster|WebStripper|websucker|webvac|webwalk|webweasel|WebWhacker|WebZIP|Wget|Whacker|whizbang|WhosTalking|Widow|WinHTTP|WISEbot|WWWOFFLE|x-Tractor|^Xaldon\ WebSpider|WUMPUS|Xenu|XGET|Yeti|zermelo|Zeus.*Webster|Zeus [NC]
RewriteRule ^.* - [F,L]

# Bots starting with Web
RewriteCond %{HTTP_USER_AGENT} ^web(zip|emaile|enhancer|fetch|go.?is|auto|bandit|clip|copier|master|reaper|sauger|site.?quester|whack) [NC,OR]
 
# Anywhere in UA -- Greedy REGEX
RewriteCond %{HTTP_USER_AGENT} ^.*(craftbot|download|extract|stripper|sucker|ninja|clshttp|webspider|leacher|collector|grabber|webpictures).*$ [NC]
RewriteRule ^.* - [F,L]

### Stop browser prefetching ####
SetEnvIfNoCase X-Forwarded-For .+ proxy=yes
SetEnvIfNoCase X-moz prefetch no_access=yes

### Block pre-fetch requests with X-moz headers ####
RewriteCond %{ENV:no_access} yes
RewriteRule .* - [F,L]

So now I would like to ask if you could review my work and tell me if their are any space for improvement.

Thanks,

John