Nginx 防止 SQL 注入、XSS 攻击的实践配置方法
if ($request_method !~* GET|POST) { return 444; }
#使用444错误代码可以更加减轻服务器负载压力。
#防止SQL注入
if ($query_string ~* (\$|'|--|[+|(%20)]union[+|(%20)]|[+|(%20)]insert[+|(%20)]|[+|(%20)]drop[+|(%20)]|[+|(%20)]truncate[+|(%20)]|[+|(%20)]update[+|(%20)]|[+|(%20)]from[+|(%20)]|[+|(%20)]grant[+|(%20)]|[+|(%20)]exec[+|(%20)]|[+|(%20)]where[+|(%20)]|[+|(%20)]select[+|(%20)]|[+|(%20)]and[+|(%20)]|[+|(%20)]or[+|(%20)]|[+|(%20)]count[+|(%20)]|[+|(%20)]exec[+|(%20)]|[+|(%20)]chr[+|(%20)]|[+|(%20)]mid[+|(%20)]|[+|(%20)]like[+|(%20)]|[+|(%20)]iframe[+|(%20)]|[\<|%3c]script[\>|%3e]|javascript|alert|webscan|dbappsecurity|style|confirm\(|innerhtml|innertext)(.*)$) { return 555; }
if ($uri ~* (/~).*) { return 501; }
if ($uri ~* (\\x.)) { return 501; }
#防止SQL注入
if ($query_string ~* "[;'<>].*") { return 509; }
if ($request_uri ~ " ") { return 509; }
if ($request_uri ~ (\/\.+)) { return 509; }
if ($request_uri ~ (\.+\/)) { return 509; }
#if ($uri ~* (insert|select|delete|update|count|master|truncate|declare|exec|\*|\')(.*)$ ) { return 503; }
#防止SQL注入
if ($request_uri ~* "(cost\()|(concat\()") { return 504; }
if ($request_uri ~* "[+|(%20)]union[+|(%20)]") { return 504; }
if ($request_uri ~* "[+|(%20)]and[+|(%20)]") { return 504; }
if ($request_uri ~* "[+|(%20)]select[+|(%20)]") { return 504; }
if ($request_uri ~* "[+|(%20)]or[+|(%20)]") { return 504; }
if ($request_uri ~* "[+|(%20)]delete[+|(%20)]") { return 504; }
if ($request_uri ~* "[+|(%20)]update[+|(%20)]") { return 504; }
if ($request_uri ~* "[+|(%20)]insert[+|(%20)]") { return 504; }
if ($query_string ~ "(<|%3C).*script.*(>|%3E)") { return 505; }
if ($query_string ~ "GLOBALS(=|\[|\%[0-9A-Z]{0,2})") { return 505; }
if ($query_string ~ "_REQUEST(=|\[|\%[0-9A-Z]{0,2})") { return 505; }
if ($query_string ~ "proc/self/environ") { return 505; }
if ($query_string ~ "mosConfig_[a-zA-Z_]{1,21}(=|\%3D)") { return 505; }
if ($query_string ~ "base64_(en|de)code\(.*\)") { return 505; }
if ($query_string ~ "[a-zA-Z0-9_]=http://") { return 506; }
if ($query_string ~ "[a-zA-Z0-9_]=(\.\.//?)+") { return 506; }
if ($query_string ~ "[a-zA-Z0-9_]=/([a-z0-9_.]//?)+") { return 506; }
if ($query_string ~ "b(ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo)b") { return 507; }
if ($query_string ~ "b(erections|hoodia|huronriveracres|impotence|levitra|libido)b") {return 507; }
if ($query_string ~ "b(ambien|bluespill|cialis|cocaine|ejaculation|erectile)b") { return 507; }
if ($query_string ~ "b(lipitor|phentermin|pro[sz]ac|sandyauer|tramadol|troyhamby)b") { return 507; }
#这里大家根据自己情况添加删减上述判断参数,cURL、wget这类的屏蔽有点儿极端了,但要“宁可错杀一千,不可放过一个”。
if ($http_user_agent ~* YisouSpider|ApacheBench|WebBench|Jmeter|JoeDog|Havij|GetRight|TurnitinBot|GrabNet|masscan|mail2000|github|wget|curl|Java|python) { return 508; }
#同上,大家根据自己站点实际情况来添加删减下面的屏蔽拦截参数。
if ($http_user_agent ~* "Go-Ahead-Got-It") { return 508; }
if ($http_user_agent ~* "GetWeb!") { return 508; }
if ($http_user_agent ~* "Go!Zilla") { return 508; }
if ($http_user_agent ~* "Download Demon") { return 508; }
if ($http_user_agent ~* "Indy Library") { return 508; }
if ($http_user_agent ~* "libwww-perl") { return 508; }
if ($http_user_agent ~* "Nmap Scripting Engine") { return 508; }
if ($http_user_agent ~* "~17ce.com") { return 508; }
if ($http_user_agent ~* "WebBench*") { return 508; }
if ($http_user_agent ~* "spider") { return 508; } #这个会影响国内某些搜索引擎爬虫,比如:搜狗
#拦截各恶意请求的UA,可以通过分析站点日志文件或者waf日志作为参考配置。
if ($http_referer ~* ) { return 509; }
#拦截17ce.com站点测速节点的请求,所以明月一直都说这些测速网站的数据仅供参考不能当真的。
if ($http_referer ~* WebBench*") { return 509; }
#拦截WebBench或者类似压力测试工具,其他工具只需要更换名称即可。