[snipets Nextcloud] Security A++ (test owncloud)

Discussion in 'Tips/Tricks/Mods' started by ledufakademy, Oct 10, 2020.

  1. ledufakademy

    ledufakademy Member

    Here is snipets that work good for me, feel free to comment, in order to make it perfect.
    Tested with NextCloud 19.0.3.
    I recommend update Nextcloud with CLI (updater)

    Please note : the 512MB limit for upload, 2 directives in PHP and 1 in nginx, adjust as you want

    PHP part :
    PHP:
    upload_max_filesize 512M
    post_max_size 
    512M
    max_execution_time 
    3600
    request_terminate_timeout 
    3600
    opcache
    .enable 1
    opcache
    .enable_cli 1
    opcache
    .interned_strings_buffer 8
    opcache
    .max_accelerated_files 10000
    opcache
    .memory_consumption 128
    opcache
    .save_comments 1
    opcache
    .revalidate_freq 1
    memory_limit 
    1024M
    mbstring
    .func_overload 0
    default_charset 
    'UTF-8'
    output_buffering 0
    cgi
    .fix_pathinfo 1
    NGINX part :
    PHP:
    location ~ /\. {##delete##
                   
    deny all;
    }

    location ~ /\.(?!file).* {
                 
    deny all;
    }
    # Add headers to serve security related headers
    # Before enabling Strict-Transport-Security headers please read into this
    # topic first

    add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;" always;

    #
    # WARNING: Only add the preload option once you read about
    # the consequences in https://hstspreload.org/. This option
    # will add the domain to a hardcoded list that is shipped
    # in all major browsers and getting removed from this list
    # could take several months.
    add_header Referrer-Policy "no-referrer" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Download-Options "noopen" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Permitted-Cross-Domain-Policies "none" always;
    add_header X-Robots-Tag "none" always;
    add_header X-XSS-Protection "1; mode=block" always;

    # Remove X-Powered-By, which is an information leak
    fastcgi_hide_header X-Powered-By;

    location = /robots.txt {
        
    allow all;
        
    log_not_found off;
        
    access_log off;
    }

    # The following 2 rules are only needed for the user_webfinger app.
    # Uncomment it if you're planning to use this app.
    rewrite ^/.well-known/host-meta /public.php?service=host-meta last;
    rewrite ^/.well-known/host-meta.json /public.php?service=host-meta-json last;

    # The following rule is only needed for the Social app.
    # Uncomment it if you're planning to use this app.
    rewrite ^/.well-known/webfinger /public.php?service=webfinger last;

    location = /.well-known/carddav {
        return 
    301 $scheme://$host:$server_port/remote.php/dav;
    }
    location = /.well-known/caldav {
        return 
    301 $scheme://$host:$server_port/remote.php/dav;
    }
    location ~ /.well-known/acme-challenge {
        
    allow all;
    }

    # set max upload size
    client_max_body_size 512M;
    fastcgi_buffers 64 4K;

    # Enable gzip but do not remove ETag headers
    gzip on;
    gzip_vary on;
    gzip_comp_level 4;
    gzip_min_length 256;
    gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
    gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;

    # Uncomment if your server is build with the ngx_pagespeed module
    # This module is currently not supported.
    #pagespeed off;

    location / {
        
    rewrite ^ /index.php;
    }

    location ~ ^\/(?:build|tests|config|lib|3rdparty|templates|data)\/ {
        
    deny all;
    }

    location ~ ^\/(?:\.|autotest|occ|issue|indie|db_|console) {
        
    deny all;
    }

    location ~ ^\/(?:index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+)\.php(?:$|\/) {
        
    fastcgi_split_path_info ^(.+?\.php)(\/.*|)$;
        
    set $path_info $fastcgi_path_info;
        
    try_files $fastcgi_script_name =404;
        include 
    fastcgi_params;
        
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        
    fastcgi_param PATH_INFO $path_info;
        
    fastcgi_param HTTPS on;
        
    # Avoid sending the security headers twice
        
    fastcgi_param modHeadersAvailable true;
        
    # Enable pretty urls
        
    fastcgi_param front_controller_active true;
    {
    FASTCGIPASS}
        
    fastcgi_intercept_errors on;
        
    fastcgi_request_buffering off;
    }

    location ~ ^\/(?:updater|oc[ms]-provider)(?:$|\/) {
        
    try_files $uri/ =404;
        
    index index.php;
    }

    # Adding the cache control header for js, css and map files
    # Make sure it is BELOW the PHP block
    location ~ \.(?:css|js|woff2?|svg|gif|map)$ {
        
    try_files $uri /index.php$request_uri;
        
    add_header Cache-Control "public, max-age=15778463";
        
    # Add headers to serve security related headers (It is intended to
        # have those duplicated to the ones above)
        # Before enabling Strict-Transport-Security headers please read into
        # this topic first.
        #add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;" always;
        #
        # WARNING: Only add the preload option once you read about
        # the consequences in https://hstspreload.org/. This option
        # will add the domain to a hardcoded list that is shipped
        # in all major browsers and getting removed from this list
        # could take several months.
        
    add_header Referrer-Policy "no-referrer" always;
        
    add_header X-Content-Type-Options "nosniff" always;
        
    add_header X-Download-Options "noopen" always;
        
    add_header X-Frame-Options "SAMEORIGIN" always;
        
    add_header X-Permitted-Cross-Domain-Policies "none" always;
        
    add_header X-Robots-Tag "none" always;
        
    add_header X-XSS-Protection "1; mode=block" always;

        
    # Optional: Don't log access to assets
        
    access_log off;
    }

    location ~ \.(?:png|html|ttf|ico|jpg|jpeg|bcmap)$ {
        
    try_files $uri /index.php$request_uri;
        
    # Optional: Don't log access to other assets
        
    access_log off;
    }

    location ~ \.php$ {##delete##
                
    try_files /a1fc5821d2b5d92d0d04aa0046688818.htm @php;
    }
     
    Last edited: Oct 15, 2020
    ahrasis and till like this.
  2. ahrasis

    ahrasis Well-Known Member

    Thank you for sharing.
     
    ledufakademy likes this.

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