monstra_cms-3.0.4-上传getshell CVE- 2018-17418
代码分析（Code analysis）：
在monstra\plugins\box\filesmanager\ filesmanager.admin.php第150行中存在forbidden_types变量做黑名单限制，继续跟进该变量
In the line 150 of monstra\plugins\box\filesmanager\ filesmanager.admin.php, there is a forbidden_types variable to be blacklisted. Continue to follow the variable.
在同文件第22行发现相关黑名单名单，可以利用大小写绕过。
The list of related blacklists found on line 22 of the same document can be bypassed by capitalization.
实际演示（Actual demonstration）：
Content栏下Files功能存在上传按钮
The Upload function exists in the Files function under the Content column.
使用burp拦截数据包，修改后缀为PhP
Use burp to intercept the packet and modify the suffix to PhP.
上传成功
Successful upload
菜刀链接
use Chopper link it
