CVE-2024-7372
📋 TL;DR
This critical SQL injection vulnerability in SourceCodester Simple Realtime Quiz System 1.0 allows attackers to execute arbitrary SQL commands via the 'quiz' parameter in /quiz_board.php. Attackers can potentially access, modify, or delete database content, including sensitive user data. Any organization using this specific quiz system version is affected.
💻 Affected Systems
- SourceCodester Simple Realtime Quiz System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, or full system takeover via SQL injection to RCE chaining
Likely Case
Unauthorized access to quiz data, user information, and potential privilege escalation within the application
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to non-sensitive data
🎯 Exploit Status
Public exploit code available on GitHub gist, SQL injection requires minimal technical skill
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider removing the application or implementing workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allAdd parameter validation to sanitize 'quiz' parameter input before SQL processing
Modify /quiz_board.php to validate and sanitize all user inputs using prepared statements
Web Application Firewall Rule
allBlock SQL injection patterns targeting /quiz_board.php
Add WAF rule: deny requests to /quiz_board.php containing SQL keywords in parameters
🧯 If You Can't Patch
- Block external access to /quiz_board.php using network ACLs or web server configuration
- Implement database user with minimal privileges (read-only if possible) for the application
🔍 How to Verify
Check if Vulnerable:
Test /quiz_board.php with SQL injection payloads in 'quiz' parameter and observe database errors or unexpected behaviorCheck Version:
Check application files or documentation for version 1.0 indicationVerify Fix Applied:
Attempt SQL injection after fixes and confirm proper error handling or parameter rejection📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual database queries from web server IP
- Multiple failed parameter validation attempts
Network Indicators:
- HTTP requests to /quiz_board.php with SQL keywords in parameters
- Unusual database port traffic from web server
SIEM Query:
source="web_logs" AND uri="/quiz_board.php" AND (param="quiz" AND value CONTAINS "UNION" OR value CONTAINS "SELECT" OR value CONTAINS "OR 1=1")