NGINX Security Config

security.conf

    ## Block SQL injections
    set $block_sql_injections 0;
    if ($query_string ~ "union.*select.*\(") {
        set $block_sql_injections 1;
    }
    
    if ($query_string ~ "union.*all.*select.*") {
        set $block_sql_injections 1;
    }
    
    if ($query_string ~ "concat.*\(") {
        set $block_sql_injections 1;
    }
    
    if ($block_sql_injections = 1) {
        return 403;
    }
    

    ## Block file injections
    set $block_file_injections 0;
    if ($query_string ~ "[a-zA-Z0-9_]=http://") {
        set $block_file_injections 1;
    }
    
    if ($query_string ~ "[a-zA-Z0-9_]=(\.\.//?)+") {
        set $block_file_injections 1;
    }
    
    if ($query_string ~ "[a-zA-Z0-9_]=/([a-z0-9_.]//?)+") {
        set $block_file_injections 1;
    }
    
    if ($block_file_injections = 1) {
        return 403;
    }
    
    
    ## Block common exploits
    set $block_common_exploits 0;
    if ($query_string ~ "(<|%3C).*script.*(>|%3E)") {
        set $block_common_exploits 1;
    }
    
    if ($query_string ~ "GLOBALS(=|\[|\%[0-9A-Z]{0,2})") {
        set $block_common_exploits 1;
    }
    
    if ($query_string ~ "_REQUEST(=|\[|\%[0-9A-Z]{0,2})") {
        set $block_common_exploits 1;
    }
    
    if ($query_string ~ "proc/self/environ") {
        set $block_common_exploits 1;
    }
    
    if ($query_string ~ "mosConfig_[a-zA-Z_]{1,21}(=|\%3D)") {
        set $block_common_exploits 1;
    }
    
    if ($query_string ~ "base64_(en|de)code\(.*\)") {
        set $block_common_exploits 1;
    }
    
    if ($block_common_exploits = 1) {
        return 403;
    }
    
    
    ## Block spam
    set $block_spam 0;
    if ($query_string ~ "\b(ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo)\b") {
        set $block_spam 1;
    }
    
    if ($query_string ~ "\b(erections|hoodia|huronriveracres|impotence|levitra|libido)\b") {
        set $block_spam 1;
    }
    
    if ($query_string ~ "\b(ambien|blue\spill|cialis|cocaine|ejaculation|erectile)\b") {
        set $block_spam 1;
    }
    
    if ($query_string ~ "\b(lipitor|phentermin|pro[sz]ac|sandyauer|tramadol|troyhamby)\b") {
        set $block_spam 1;
    }
    
    if ($block_spam = 1) {
        return 403;
    }
    
    
    ## Block user agents
    set $block_user_agents 0;


    # Don't disable wget if you need it to run cron jobs
    if ($http_user_agent ~ "Wget") {
        set $block_user_agents 1;
    }

    # Disable Akeeba Remote Control 2.5 and earlier
    if ($http_user_agent ~ "Indy Library") {
        set $block_user_agents 1;
    }

    # Common bandwidth hoggers and hacking tools.
    if ($http_user_agent ~ "libwww-perl") {
        set $block_user_agents 1;
    }
    
    if ($http_user_agent ~ "GetRight") {
        set $block_user_agents 1;
    }
    
    if ($http_user_agent ~ "GetWeb!") {
        set $block_user_agents 1;
    }
    
    if ($http_user_agent ~ "Go!Zilla") {
        set $block_user_agents 1;
    }
    
    if ($http_user_agent ~ "Download Demon") {
        set $block_user_agents 1;
    }
    
    if ($http_user_agent ~ "Go-Ahead-Got-It") {
        set $block_user_agents 1;
    }
    
    if ($http_user_agent ~ "TurnitinBot") {
        set $block_user_agents 1;
    }
    
    if ($http_user_agent ~ "GrabNet") {
        set $block_user_agents 1;
    }
    
    if ($block_user_agents = 1) {
        return 403;
    }
    
    # Block hidden files
    location ~ /\.  { return 403; }
    
    # Protect .git files
    location ~ /\.git { 
            access_log off; 
            log_not_found off; 
            deny all; 
    }
    
    # Block sql dumps
    location ~* \.(sql)$ {deny all; }
    
    # Protect Perl/CGI/etc files
    location ~* \.(pl|cgi|py|sh|lua)\$ {
            return 444;
    }

    # Block web attacks
    location ~* (roundcube|webdav|smtp|http\:|soap|w00tw00t) {
            return 444;
    }
    
    # Protect other sensitive files
    location ~* \.(engine|inc|info|install|make|module|profile|test|po|sh|.*sql|theme|tpl(\.php)?|xtmpl)$|^(\..*|Entries.*|Repository|Root|Tag|Template)$|\.php_{
            return 444;
    }

    # Block execution of PHP files in uploads folders
    location ~* /(?:uploads|files)/.*\.php$ {
            deny all;
    }
    
    # Block PHP files in the includes directory
    location ~* /wp-includes/.*.php$ {
        deny all;
        access_log off;
        log_not_found off;
    }
    
    #Block access to xmlrpc.php
    location = /xmlrpc.php {
        deny all;
        access_log off;
        log_not_found off;
    }
    
    Block access to dev files
    location = /(package.json|gulp.js|grunt.js|bower.json) {
        deny all;
        access_log off;
        log_not_found off;
    }