feat(lab11): hardened nginx + WAF sidecar with OWASP CRS

labs/lab11/reverse-proxy/nginx.conf

@@ -1,70 +1,14 @@
-user  nginx;
-worker_processes  auto;
-
-events { worker_connections 1024; }
-
 http {
-  include       /etc/nginx/mime.types;
-  default_type  application/octet-stream;
-  sendfile      on;
-  keepalive_timeout  10;
-  server_tokens off;
-  gzip off;
-
-  # Security-focused logs
-  log_format security '$remote_addr - $remote_user [$time_local] '
-                     '"$request" $status $body_bytes_sent '
-                     '"$http_referer" "$http_user_agent" '
-                     'rt=$request_time uct=$upstream_connect_time '
-                     'urt=$upstream_response_time';
-  access_log /var/log/nginx/access.log security;
-  error_log  /var/log/nginx/error.log warn;
-
-  # Upstream app
-  upstream juice {
-    server juice:3000;
-    keepalive 32;
-  }
-
-  # Rate limit zone for login
-  # ~10 req/min per IP, burst of 5
+  # Rate limiting zones (должны быть внутри http)
   limit_req_zone $binary_remote_addr zone=login:10m rate=10r/m;
   limit_req_status 429;
 
-  map $http_upgrade $connection_upgrade { default upgrade; '' close; }
-
-  # Common proxy settings
-  proxy_set_header Host $host;
-  proxy_set_header X-Real-IP $remote_addr;
-  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-  proxy_set_header X-Forwarded-Proto $scheme;
-  proxy_http_version 1.1;
-  proxy_set_header Connection $connection_upgrade;
-  proxy_set_header Upgrade $http_upgrade;
-  # Prevent upstream TLS BREACH vector by disabling compression from upstream
-  proxy_set_header Accept-Encoding "";
-  proxy_read_timeout 30s;
-  proxy_send_timeout 30s;
-  proxy_connect_timeout 5s;
-  proxy_hide_header X-Powered-By;
-  # Hide upstream headers to avoid duplicates and enforce policy at the proxy
-  proxy_hide_header X-Frame-Options;
-  proxy_hide_header X-Content-Type-Options;
-  proxy_hide_header Referrer-Policy;
-  proxy_hide_header Permissions-Policy;
-  proxy_hide_header Cross-Origin-Opener-Policy;
-  proxy_hide_header Cross-Origin-Resource-Policy;
-  proxy_hide_header Content-Security-Policy;
-  proxy_hide_header Content-Security-Policy-Report-Only;
-  proxy_hide_header Access-Control-Allow-Origin;
-
-  # HTTP server (redirect to HTTPS)
+  # HTTP server — redirect to HTTPS
   server {
     listen 8080;
     listen [::]:8080;
     server_name _;
 
-    # Core headers (also on redirects)
     add_header X-Frame-Options "DENY" always;
     add_header X-Content-Type-Options "nosniff" always;
     add_header Referrer-Policy "strict-origin-when-cross-origin" always;
@@ -85,26 +29,25 @@ http {
 
     ssl_certificate     /etc/nginx/certs/localhost.crt;
     ssl_certificate_key /etc/nginx/certs/localhost.key;
-    ssl_session_timeout 10m;
-    ssl_session_cache   shared:SSL:10m;
-    ssl_protocols TLSv1.2 TLSv1.3;
-    ssl_ciphers "TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:EECDH+AESGCM:EDH+AESGCM";
-    ssl_prefer_server_ciphers on;
+
+    ssl_protocols TLSv1.3;
+    ssl_prefer_server_ciphers off;
+
+    ssl_session_cache shared:SSL:10m;
+    ssl_session_timeout 1d;
+    ssl_session_tickets off;
+
+   # ssl_ciphers "TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256";
+    ssl_ecdh_curve X25519:secp384r1;
+
     ssl_stapling off;
-    # If using a publicly-trusted certificate, you may enable OCSP stapling:
-    # ssl_stapling on;
-    # ssl_stapling_verify on;
-    # resolver 1.1.1.1 8.8.8.8 valid=300s;
-    # resolver_timeout 5s;
-    # ssl_trusted_certificate /etc/ssl/certs/ca-certificates.crt;
+    ssl_stapling_verify off;
 
-    client_max_body_size 2m;
     client_body_timeout 10s;
     client_header_timeout 10s;
     keepalive_timeout 10s;
     send_timeout 10s;
 
-    # Security headers (include HSTS here only)
     add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
     add_header X-Frame-Options "DENY" always;
     add_header X-Content-Type-Options "nosniff" always;
@@ -117,11 +60,15 @@ http {
     location = /rest/user/login {
       limit_req zone=login burst=5 nodelay;
       limit_req_log_level warn;
-      proxy_pass http://juice;
+      proxy_pass http://juice:3000;
     }
 
     location / {
-      proxy_pass http://juice;
+      proxy_pass http://juice:3000;
+      proxy_set_header Host $host;
+      proxy_set_header X-Real-IP $remote_addr;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Proto $scheme;
     }
   }
 }

labs/lab11/waf/docker-compose.override.yml

@@ -0,0 +1,23 @@
+services:
+  waf:
+    image: owasp/modsecurity-crs:nginx
+    container_name: lab11-waf
+    restart: unless-stopped
+    depends_on:
+      - nginx
+    environment:
+      BACKEND: "https://nginx:8443"
+      PROXY_SSL_VERIFY: "no"
+      PORT: "8080"
+
+      MODSEC_RULE_ENGINE: "on"
+      MODSEC_AUDIT_ENGINE: "RelevantOnly"
+      MODSEC_AUDIT_LOG_RELEVANT_STATUS: "^(?:5|4(?!04))"
+      MODSEC_AUDIT_LOG: "/dev/stdout"
+      MODSEC_AUDIT_LOG_FORMAT: "JSON"
+
+      PARANOIA: "1"
+      BLOCKING_PARANOIA: "1"
+      TX_ANOMALY_SCORE_THRESHOLD: "5"
+    ports:
+      - "8090:8080"