CVE-2024-42567
📋 TL;DR
This SQL injection vulnerability in the School Management System allows attackers to execute arbitrary SQL commands through the 'sid' parameter in search.php. This could lead to data theft, modification, or deletion. Any organization using the vulnerable version of this software is affected.
💻 Affected Systems
- School Management System
📦 What is this software?
School Management System by Arajajyothibabu
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including sensitive student/personnel data exfiltration, authentication bypass, remote code execution via database functions, and system takeover.
Likely Case
Data extraction of sensitive information (student records, grades, personal data), potential privilege escalation, and database manipulation.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permissions restricting dangerous operations.
🎯 Exploit Status
The vulnerability is in a web-accessible endpoint with no authentication required, making exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
1. Check for updated version from vendor
2. If available, backup database and application files
3. Apply update following vendor instructions
4. Test functionality after update
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to only accept numeric values for the sid parameter
In search.php, add: if(!is_numeric($_GET['sid'])) { die('Invalid input'); }
Web Application Firewall Rule
allBlock SQL injection patterns in the sid parameter
WAF rule: Block requests with SQL keywords in sid parameter
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries in the search.php file
- Restrict database user permissions to prevent data modification and dangerous operations
🔍 How to Verify
Check if Vulnerable:
Test the endpoint with SQL injection payloads: /search.php?action=2&sid=1' OR '1'='1Check Version:
Check git commit hash or version file if availableVerify Fix Applied:
Test with same payloads and verify they are rejected or properly handled📡 Detection & Monitoring
Log Indicators:
- Multiple failed SQL queries from same IP
- Unusual database error messages in logs
- Requests with SQL keywords in sid parameter
Network Indicators:
- HTTP requests containing SQL injection patterns in parameters
- Unusual database connection patterns
SIEM Query:
source="web_logs" AND (uri="*search.php*" AND (param="*sid=*'*" OR param="*sid=*%27*" OR param="*sid=* OR *"))