CVE-2024-42569
📋 TL;DR
This SQL injection vulnerability in the School Management System allows attackers to execute arbitrary SQL commands via the 'medium' parameter in paidclass.php. This affects all users running the vulnerable version, potentially compromising the entire database. Attackers could steal, modify, or delete sensitive student and administrative data.
💻 Affected Systems
- School Management System
📦 What is this software?
School Management System by Arajajyothibabu
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, authentication bypass, and potential remote code execution on the underlying server.
Likely Case
Unauthorized access to sensitive student records, grades, financial data, and administrative information stored in the database.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permission restrictions in place.
🎯 Exploit Status
The vulnerability is in a web parameter and requires no authentication, making exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None provided in references
Restart Required: No
Instructions:
1. Check for updated version from vendor
2. Apply parameterized queries to paidclass.php
3. Implement input validation for the medium parameter
4. Test thoroughly before deployment
🔧 Temporary Workarounds
Web Application Firewall Rule
allBlock or sanitize SQL injection patterns in the medium parameter
WAF-specific configuration required
Input Validation Filter
allImplement server-side validation to restrict medium parameter values
Add validation in paidclass.php: if(!preg_match('/^[a-zA-Z0-9]+$/', $_GET['medium'])) { die('Invalid input'); }
🧯 If You Can't Patch
- Disable or restrict access to paidclass.php endpoint
- Implement strict database user permissions with read-only access where possible
🔍 How to Verify
Check if Vulnerable:
Test paidclass.php with SQL injection payloads in the medium parameter (e.g., ' OR '1'='1)Check Version:
Check git commit history for bae5aa or review source code for vulnerable parameter handlingVerify Fix Applied:
Verify that SQL injection payloads no longer execute and return error messages📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts after paidclass.php access
- SQL syntax errors in web server logs
Network Indicators:
- HTTP requests to paidclass.php with SQL keywords in parameters
- Unusual database traffic patterns
SIEM Query:
source="web_logs" AND uri="*paidclass.php*" AND (param="*medium*" AND value="*OR*" OR value="*UNION*" OR value="*SELECT*" OR value="*--*" OR value="*;*")