CVE-2024-42573
📋 TL;DR
This CVE describes a SQL injection vulnerability in the School Management System via the 'medium' parameter in dtmarks.php. Attackers can execute arbitrary SQL commands, potentially compromising the database. Organizations using this specific commit of the School Management System are 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 data theft, data manipulation, authentication bypass, and potential remote code execution if database functions allow it.
Likely Case
Data exfiltration of sensitive student/teacher information, grade manipulation, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database user privilege restrictions in place.
🎯 Exploit Status
SQL injection via GET/POST parameter requires minimal technical skill. The GitHub gist provides technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
1. Update to a patched version if available. 2. If not, manually fix dtmarks.php by implementing parameterized queries or proper input validation for the medium parameter.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to only accept expected values for the medium parameter
Edit dtmarks.php to validate the medium parameter against a whitelist of allowed values
WAF Rule
allImplement web application firewall rules to block SQL injection patterns
Add WAF rule to detect and block SQL injection attempts on dtmarks.php
🧯 If You Can't Patch
- Restrict database user permissions to minimum required
- Implement network segmentation to isolate the School Management System
🔍 How to Verify
Check if Vulnerable:
Check if your system uses commit bae5aa of School Management System and examine dtmarks.php for SQL injection vulnerabilities in the medium parameter handling.Check Version:
Check git commit history or version files in the School Management System installation directory.Verify Fix Applied:
Test the medium parameter with SQL injection payloads to ensure they are properly sanitized or rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts after SQL injection
- Requests to dtmarks.php with suspicious medium parameter values
Network Indicators:
- HTTP requests containing SQL keywords in the medium parameter
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND uri="*/dtmarks.php*" AND (medium="*' OR *" OR medium="*;*" OR medium="*--*" OR medium="*UNION*" OR medium="*SELECT*" OR medium="*INSERT*" OR medium="*UPDATE*" OR medium="*DELETE*")