本篇介绍在CentOS7.6上安装、测试使用ngx_lua_waf + openresty。
Preface
# yum install epel-release -y # yum group install "Development Tools" -y # 安装基本编译工具
安装Luagit
# cd /opt/ # wget http://luajit.org/download/LuaJIT-2.1.0-beta3.tar.gz # tar -xvf LuaJIT-2.1.0-beta3.tar.gz # cd LuaJIT-2.1.0-beta3/ # make && make install # ln -sf luajit-2.1.0-beta3 /usr/local/bin/luajit
安装OpenResty
安装依赖
# yum install gcc pcre pcre-devel zlib zlib-devel openssl openssl-devel -y
下载安装
# cd /opt/ # wget https://openresty.org/download/openresty-1.13.6.1.tar.gz # tar -xvf openresty-1.13.6.1.tar.gz # cd openresty-1.13.6.1/ # ./configure --prefix=/usr/local/openresty --with-luajit --with-http_stub_status_module --with-pcre --with-pcre-jit # gmake && gmake install
# ln -sf /usr/local/openresty/nginx/sbin/nginx /usr/local/openresty/bin/openresty
# /usr/local/openresty/bin/openresty # 启动openresty # netstat -lntp | grep 80 # 服务运行正常 tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN
配置ngx_lua_waf
下载
# cd /usr/local/openresty/nginx/conf # 到openresty配置文件目录 # git clone https://github.com/loveshell/ngx_lua_waf.git # 下载 Cloning into 'ngx_lua_waf'...
# mv ngx_lua_waf/ waf/ # 改个简单的名字
添加配置
修改openresty配置文件。
# vim /usr/local/openresty/nginx/conf/nginx.conf ...
user nobody; # 取消注释
...
http{ # 在http块下添加如下内
...
lua_package_path "/usr/local/openresty/nginx/conf/waf/?.lua";
lua_shared_dict limit 10m;
init_by_lua_file /usr/local/openresty/nginx/conf/waf/init.lua;
access_by_lua_file /usr/local/openresty/nginx/conf/waf/waf.lua;
...
修改ngx_lua_waf配置
# cd /usr/local/openresty/nginx/conf/waf/ # ngx_lua_waf目录 # vim config.lua ... RulePath = "/usr/local/openresty/nginx/conf/waf/wafconf/" # 规则文件路径 attacklog = "on" # 启用日志 logdir = "/usr/local/openresty/nginx/logs/hack/" # 日志目录 ...
创建日志目录
# mkdir -p /usr/local/openresty/nginx/logs/hack/
# chown -R nobody:nobody /usr/local/openresty/nginx/logs/hack/
测试openresty配置是否正常:
# /usr/local/openresty/bin/openresty # 如果没有启动服务,则启动 # /usr/local/openresty/bin/openresty -s reload # 如果已经启动,则重载配置 # /usr/local/openresty/bin/openresty -t # 测试配置是否正常 nginx: the configuration file /usr/local/openresty/nginx/conf/nginx.conf syntax is ok nginx: configuration file /usr/local/openresty/nginx/conf/nginx.conf test is successful
WAF测试
直接访问站点(此处为虚拟机的ip地址),应该能看到Openresty的欢迎页。
攻击测试
尝试目录遍历攻击,即使用../,跳转目录读取文件。
访问:http://192.168.139.139//test.php?id=../etc/passwd
提示,检测到攻击行为,请求被拦截,说明可以正常工作。
ngx_lua_waf配置文件说明
配置文件路径:/usr/local/openresty/nginx/conf/waf/config.lua
RulePath = "/usr/local/openresty/nginx/ngx_lua_waf/wafconf/" ##指定相应位置 attacklog = "on" ##开启日志 logdir = "/usr/local/openresty/nginx/logs/hack/" ##日志存放位置 UrlDeny="on" ##是否开启URL防护 Redirect="on" ##地址重定向 CookieMatch="on" ##cookie拦截 postMatch="on" ##post拦截 whiteModule="on" ##白名单 black_fileExt={"php","jsp"} ipWhitelist={"127.0.0.1"} ##白名单IP ipBlocklist={"1.0.0.1"} ##黑名单IP CCDeny="on" ##开启CC防护 CCrate="100/60" ##60秒内允许同一个IP访问100次
参考
centos下安装openresty+ngx_lua_waf防火墙部署
https://github.com/loveshell/ngx_lua_waf
https://blog.51cto.com/tar0cissp/1980249
注:参考链接中都有几个小问题,写的不够清晰。