CVE-2024-41248
📋 TL;DR
An unauthenticated attacker can add new subject entries to the Kashipara Responsive School Management System by exploiting incorrect access control in two PHP files. This affects all users of version 3.2.0 where these files are exposed. The vulnerability allows unauthorized modification of academic data without authentication.
💻 Affected Systems
- Kashipara Responsive School Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could manipulate academic records, add fraudulent subjects, disrupt curriculum planning, or use this as an entry point for further attacks if combined with other vulnerabilities.
Likely Case
Unauthorized addition of subjects leading to data integrity issues, administrative confusion, and potential academic record manipulation.
If Mitigated
Minimal impact with proper access controls, authentication requirements, and input validation in place.
🎯 Exploit Status
Simple HTTP POST request to vulnerable endpoints with subject data. Public proof-of-concept available in GitHub repository.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
1. Check vendor website for security updates
2. Apply any available patches
3. Verify access controls are properly implemented
🔧 Temporary Workarounds
Restrict Access to Vulnerable Files
allBlock or restrict access to /smsa/add_subject.php and /smsa/add_subject_submit.php
# Apache: Add to .htaccess
<Files "add_subject.php">
Order Deny,Allow
Deny from all
</Files>
<Files "add_subject_submit.php">
Order Deny,Allow
Deny from all
</Files>
# Nginx: Add to server block
location ~ /smsa/add_subject\.php$ {
deny all;
}
location ~ /smsa/add_subject_submit\.php$ {
deny all;
}
Implement Authentication Check
allAdd session validation to vulnerable PHP files
# Add to beginning of both PHP files
session_start();
if (!isset($_SESSION['user_id']) || $_SESSION['user_role'] !== 'admin') {
header('HTTP/1.0 403 Forbidden');
die('Access Denied');
}
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block requests to vulnerable endpoints
- Move system behind VPN or restrict to internal network only
🔍 How to Verify
Check if Vulnerable:
Send POST request to /smsa/add_subject_submit.php with subject data without authentication. If request succeeds, system is vulnerable.Check Version:
Check system documentation or admin panel for version informationVerify Fix Applied:
Attempt same POST request after applying fixes. Should receive 403 Forbidden or redirect to login.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /smsa/add_subject_submit.php from unauthenticated users
- Unusual subject additions in database logs
Network Indicators:
- POST requests to vulnerable endpoints without authentication headers
- Unusual traffic patterns to /smsa/ directory
SIEM Query:
source="web_server" AND (uri="/smsa/add_subject.php" OR uri="/smsa/add_subject_submit.php") AND http_method="POST" AND NOT user_authenticated="true"