CVE-2023-30014
📋 TL;DR
This CVE describes a critical SQL injection vulnerability in oretnom23 Judging Management System v1.0. Attackers can exploit the sub_event_id parameter in sub_event_stat_update.php to execute arbitrary SQL commands, potentially leading to data theft, system compromise, or complete database control. All users running the vulnerable version are affected.
💻 Affected Systems
- oretnom23 Judging Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise: attackers can execute arbitrary code, steal all database contents (including credentials and sensitive data), modify or delete data, and potentially gain full control over the server.
Likely Case
Data exfiltration and unauthorized access: attackers will likely extract sensitive information from the database, including user credentials, judging data, and system information, leading to data breaches and potential follow-on attacks.
If Mitigated
Limited impact with proper input validation and WAF rules in place, though the vulnerability remains present in the codebase.
🎯 Exploit Status
The vulnerability is in a publicly accessible PHP file with no authentication required. Exploitation requires only basic SQL injection knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Implement workarounds or consider replacing the software.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd proper input validation and parameterized queries to the vulnerable PHP file
Edit sub_event_stat_update.php to use prepared statements with PDO or mysqli
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection attempts targeting the vulnerable endpoint
Add rule to block requests containing SQL keywords to /sub_event_stat_update.php
🧯 If You Can't Patch
- Block external access to sub_event_stat_update.php using firewall rules or web server configuration
- Implement network segmentation to isolate the vulnerable system from sensitive data and other critical systems
🔍 How to Verify
Check if Vulnerable:
Test the sub_event_stat_update.php endpoint with SQL injection payloads in the sub_event_id parameterCheck Version:
Check the software version in the system configuration or about pageVerify Fix Applied:
Verify that SQL injection attempts no longer succeed and that prepared statements are implemented📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in web server logs
- Multiple requests to sub_event_stat_update.php with SQL keywords
- Unexpected database queries from web application
Network Indicators:
- HTTP requests to sub_event_stat_update.php containing SQL injection patterns
- Unusual outbound database connections from web server
SIEM Query:
source="web_server.log" AND uri="/sub_event_stat_update.php" AND (payload="UNION" OR payload="SELECT" OR payload="INSERT" OR payload="DELETE")