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ngx_lua_waf's Introduction

LICENSE 996.icu

安装配置可参考:https://blog.whsir.com/post-4141.html

ngx_lua_waf改版基于原ngx_lua_waf作者二次更改,代码很简单,高性能和轻量级。

增加功能如下:

1、增加黑白名单网段IP限制,能力有限,网段不能写成172.16.1.0/24,只能写成172.16.1.0-172.16.1.255了。 ipWhitelist={"127.0.0.1","172.16.1.0-172.16.1.255"}

2、增加User-Agent白名单,用来过滤蜘蛛的。 在wafconf文件夹下white-user-agent文件中添加

3、增加server_name白名单。

目前我的wlnmp一键包默认的nginx已经集成了此版本

wlnmp一键包,支持lnmp环境通过yum方式一键快速部署:https://www.wlnmp.com/

###用途:

防止sql注入,本地包含,部分溢出,fuzzing测试,xss,SSRF等web攻击
防止svn/备份之类文件泄漏
防止ApacheBench之类压力测试工具的攻击
屏蔽常见的扫描黑客工具,扫描器
屏蔽异常的网络请求
屏蔽图片附件类目录php执行权限
防止webshell上传

###推荐安装:

推荐使用lujit2.1做lua支持

ngx_lua如果是0.9.2以上版本,建议正则过滤函数改为ngx.re.find,匹配效率会提高三倍左右。

###使用说明:

nginx安装路径假设为:/usr/local/nginx/conf/

把ngx_lua_waf下载到conf目录下,解压命名为waf

在nginx.conf的http段添加

    lua_package_path "/usr/local/nginx/conf/waf/?.lua";
    lua_shared_dict limit 10m;
    init_by_lua_file  /usr/local/nginx/conf/waf/init.lua; 
    access_by_lua_file /usr/local/nginx/conf/waf/waf.lua;

配置config.lua里的waf规则目录(一般在waf/conf/目录下)

    RulePath = "/usr/local/nginx/conf/waf/wafconf/"

路径如有变动,需对应修改,然后重启nginx即可

###配置文件详细说明:

    RulePath = "/usr/local/nginx/conf/waf/wafconf/"
    --规则存放目录
    attacklog = "off"
    --是否开启攻击信息记录,需要配置logdir
    logdir = "/usr/local/nginx/logs/hack/"
    --log存储目录,该目录需要用户自己新建,切需要nginx用户的可写权限
    UrlDeny="on"
    --是否拦截url访问
    Redirect="on"
    --是否拦截后重定向
    CookieMatch = "on"
    --是否拦截cookie攻击
    postMatch = "on" 
    --是否拦截post攻击
    whiteModule = "on" 
    --是否开启URL白名单
    whiteHostModule="off"
    --是否开启主机(对应nginx里面的server_name)白名单
    black_fileExt={"php","jsp"}
    --填写可上传文件后缀类型
    ipWhitelist={"127.0.0.1","192.168.1.0-192.168.255.255"}}
    --ip白名单,多个ip用逗号分隔
    ipBlocklist={"1.0.0.1","2.0.0.0-2.0.0.255"}
    --ip黑名单,多个ip用逗号分隔
	hostWhiteList = {"blog.whsir.com","down.whsir.com"}
    --server_name白名单,多个用逗号分隔
    CCDeny="on"
    --是否开启拦截cc攻击(需要nginx.conf的http段增加lua_shared_dict limit 10m;)
    CCrate = "100/60"
    --设置cc攻击频率,单位为秒.
    --默认1分钟同一个IP只能请求同一个地址100次
    html=[[......]]
    --警告内容,可在中括号内自定义
    备注:不要乱动双引号,区分大小写

###检查规则是否生效

部署完毕可以尝试如下命令:

    curl http://xxxx/test.php?id=../etc/passwd
    返回"Please go away~~"字样,说明规则生效。

注意:默认,本机在白名单不过滤,可自行调整config.lua配置

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