使用docker搭建Web应用防护系统或web防火墙(OpenWAF)

Posted 2022-08-26 没刮胡子

简介

OpenWAF是一个全方位开源的Web应用防护系统（WAF），提供全面的防护功能和多样的防护策略。

他基于nginx_lua API分析HTTP请求信息。OpenWAF由行为分析引擎和规则引擎两大功能引擎构成。其中规则引擎主要对单个请求进行分析，行为分析引擎主要负责跨请求信息追踪。

使用docker运行

拉取镜像

docker pull titansec/openwaf

运行容器复制出配置文件

docker run -d --name openwaf \\
-p 80:80 -p 443:443 \\
titansec/openwaf 

mkdir -p /root/openwaf/()

docker cp openwaf:/etc/ngx_openwaf.conf /root/openwaf/conf
docker cp openwaf:/opt/OpenWAF/conf/twaf_access_rule.json /root/openwaf/conf
docker cp openwaf:/var/log/openwaf_error.log /root/openwaf/log/


 docker rm -f openwaf

配置文件ngx_openwaf.conf

user root;
worker_processes auto;
worker_cpu_affinity auto;
pid /var/run/openwaf.pid;
pcre_jit on;
error_log /var/log/openwaf_error.log;

events 
    worker_connections  10000;
    multi_accept on;



http 
    include            /usr/local/openresty/nginx/conf/mime.types;
    include            /opt/OpenWAF/conf/twaf_main.conf;
    include            /opt/OpenWAF/conf/twaf_api.conf;
    
    default_type       text/html;
    tcp_nopush         on;
    sendfile           on;
    keepalive_requests 100;
    keepalive_timeout  60 60;
    
    client_body_buffer_size 100m;
    lua_regex_match_limit   1500;
    
    proxy_redirect     http://$http_host/ /;
    proxy_pass_header  Server;
    
    upstream test 
       server 0.0.0.1; #just an invalid address as a place holder
       balancer_by_lua_file /opt/OpenWAF/app/twaf_balancer.lua;
       keepalive 16;
    
    
    server 
        listen  80;
        listen [::]:80 ipv6only=on;
	
        listen 443 ssl;
        listen [::]:443 ssl ipv6only=on;
	
        server_name _;
        
        ssl_certificate /opt/OpenWAF/conf/ssl/nginx.crt;
        ssl_certificate_key /opt/OpenWAF/conf/ssl/nginx.key;
        ssl_protocols TLSv1.1 TLSv1.2;
        
        include                     /opt/OpenWAF/conf/twaf_server.conf;
        ssl_certificate_by_lua_file /opt/OpenWAF/app/twaf_ssl_cert.lua;
        
        location / 
            proxy_set_header Accept-Encoding identity;
            proxy_set_header Host $http_host;
            proxy_set_header X-Server-IP $server_addr;
            proxy_set_header X-Server-PORT $server_port;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Real-PORT $remote_port;
            proxy_set_header X-Forwarded-For $http_x_forwarded_for;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Upgrade $http_upgrade;
            
            proxy_http_version 1.1;
            proxy_pass $twaf_upstream_server;
        
    

规则文件twaf_access_rule.json

说明:

    "twaf_access_rule": [
        "rules": [                                 -- 数组，注意先后顺序
                                                  
                "ngx_ssl": false,                  -- nginx认证的开关
                "ngx_ssl_cert": "path",            -- nginx认证所需PEM证书地址
                "ngx_ssl_key": "path",             -- nginx认证所需PEM私钥地址
                "host": "www.baidu.com",           -- 域名，正则匹配
                "port": 80,                        -- 端口号（缺省80）
                "path": "\\/",                      -- 路径，正则匹配
                "server_ssl": false,               -- 后端服务器ssl开关
                "forward": "server_5",             -- 后端服务器upstream名称
                "forward_addr": "192.168.8.100",         -- 后端服务器ip地址
                "forward_port": "8080",            -- 后端服务器端口号（缺省80）
                "policy": "policy_uuid"            -- 安全策略ID
            
        ]
    

参考：

    "twaf_access_rule": 
        "state": true,
        "log_state":true,
        "rules":[
            
                "host":"^.*$",
                "forward":"test1",
                "forward_addr":"192.168.8.100",
                "uuid":"test_uuid1",
                "policy": "twaf_policy_conf"
            ,
            
                "host":"localhost",
                "port":81,
                "path":"/admin/",
                "forward":"test2",
                "forward_addr":"192.168.8.100",
                "forward_port": 82,
                "uuid":"test_uuid2",
                "policy": "twaf_policy_conf"
            ,
            
                "host":"localhost",
                "ngx_ssl": true,
                "ngx_ssl_cert": "/opt/OpenWAF/conf/ssl/nginx.crt",
                "ngx_ssl_key": "/opt/OpenWAF/conf/ssl/nginx.key",
                "forward":"test3",
                "forward_addr": "1.1.1.3",
                "uuid":"test_uuid3",
                "policy": "twaf_policy_conf"
            
        ]
    

运行容器

docker run -d --name openwaf \\
-p 80:80 -p 443:443 \\
-v /root/openwaf/conf/ngx_openwaf.conf:/etc/ngx_openwaf.conf \\
-v /root/openwaf/conf/twaf_access_rule.json:/opt/OpenWAF/conf/twaf_access_rule.json \\
-v /root/openwaf/log/openwaf_error.log:/var/log/openwaf_error.log \\
titansec/openwaf 

参考运行:

docker run -d --name openwaf \\
-p 80:80 -p 443:443 \\
-v /opt/openwaf/conf/ngx_openwaf.conf:/etc/ngx_openwaf.conf \\
-v /opt/openwaf/conf/twaf_access_rule.json:/opt/OpenWAF/conf/twaf_access_rule.json \\
-v /opt/openwaf/log/openwaf_error.log:/var/log/openwaf_error.log \\
titansec/openwaf 

拦截

小结

个人搭建和使用的简单总结，不喜勿喷：

1.OpenWAF的规则配置有点繁琐，很容易就配置出错

2.文档相对不算特别多，大多数网上的资料都是比较初级的

3.性能不算很好

4.默认没有管理界面

5.不建议在生产环境使用