CVE-2022-34023

9.8 CRITICAL

📋 TL;DR

Barangay Management System v1.0 contains a SQL injection vulnerability in the hidden_id parameter at /officials/officials.php. This allows attackers to execute arbitrary SQL commands on the database. Organizations using this specific version of the software are affected.

💻 Affected Systems

Products:
  • Barangay Management System
Versions: v1.0
Operating Systems: Any OS running the web application
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the specific PHP file path mentioned. Requires web server with PHP and database backend.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, data manipulation, authentication bypass, or 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.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

SQL injection via URL parameter is typically straightforward to exploit with common tools like sqlmap.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch available. Consider upgrading to a newer version if available, or implement workarounds.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Add server-side validation to ensure hidden_id parameter contains only expected values (e.g., integers).

Modify officials.php to validate and sanitize $_GET['hidden_id'] or $_POST['hidden_id']

Parameterized Queries

all

Replace dynamic SQL queries with prepared statements using PDO or mysqli.

Update SQL queries in officials.php to use prepared statements

Web Application Firewall

all

Deploy WAF rules to block SQL injection patterns targeting the hidden_id parameter.

Configure WAF to detect and block SQLi patterns in URL parameters

🧯 If You Can't Patch

  • Restrict access to /officials/officials.php using network ACLs or authentication
  • Implement database user with minimal privileges (read-only if possible)

🔍 How to Verify

Check if Vulnerable:

Test the hidden_id parameter with SQL injection payloads (e.g., hidden_id=1' OR '1'='1) and observe database errors or unexpected behavior.

Check Version:

Check application version in source code, configuration files, or admin interface.

Verify Fix Applied:

After implementing fixes, retest with SQL injection payloads to confirm they are blocked or sanitized.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL errors in web server logs
  • Multiple requests to officials.php with suspicious parameter values
  • Database query errors containing SQL syntax

Network Indicators:

  • HTTP requests to /officials/officials.php with SQL keywords in parameters
  • Unusual database connection patterns from web server

SIEM Query:

source="web_server.log" AND uri_path="/officials/officials.php" AND (param="*hidden_id*" AND (value="*' OR*" OR value="*UNION*" OR value="*SELECT*"))

🔗 References

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