CVE-2022-34557
📋 TL;DR
Barangay Management System v1.0 contains a SQL injection vulnerability in the hidden_id parameter at /pages/permit/permit.php. This allows attackers to execute arbitrary SQL commands on the database. Organizations using this specific software version are affected.
💻 Affected Systems
- Barangay Management System
📦 What is this software?
Barangay Management System by Barangay Management System Project
⚠️ 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
Unauthorized data access, extraction of sensitive information, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permission restrictions in place.
🎯 Exploit Status
SQL injection via GET/POST parameter requires minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Implement workarounds or migrate to alternative software.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to only accept numeric values for hidden_id parameter
Modify /pages/permit/permit.php to validate hidden_id as integer: if(!is_numeric($_GET['hidden_id'])) { die('Invalid input'); }
Web Application Firewall Rule
allBlock SQL injection patterns targeting the permit.php endpoint
WAF rule: deny requests to /pages/permit/permit.php containing SQL keywords in parameters
🧯 If You Can't Patch
- Isolate the system behind a reverse proxy with strict input filtering
- Implement network segmentation to limit database access from application server
🔍 How to Verify
Check if Vulnerable:
Test /pages/permit/permit.php?hidden_id=1' OR '1'='1 and observe if SQL error or unexpected behavior occursCheck Version:
Check application files or documentation for version informationVerify Fix Applied:
Test with same payload after fixes - should return error message or no data instead of executing SQL📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple rapid requests to permit.php with varying parameters
- Database queries with unusual syntax from application user
Network Indicators:
- HTTP requests to /pages/permit/permit.php containing SQL keywords like UNION, SELECT, OR
SIEM Query:
source="web_logs" AND uri="/pages/permit/permit.php" AND (param="*UNION*" OR param="*SELECT*" OR param="*OR*" OR param="*'*" OR param="*--*")