CVE-2025-9507: Apartment Management System SQL Vulnerability

CVE-2025-9507 Overview

A SQL injection vulnerability has been identified in itsourcecode Apartment Management System version 1.0. The vulnerability exists in an unknown function within the file /report/visitor_info.php. By manipulating the vid argument, attackers can inject malicious SQL commands, potentially compromising database integrity and confidentiality. The attack can be launched remotely, and exploit details have been made publicly available.

Critical Impact

This SQL injection vulnerability allows unauthenticated remote attackers to manipulate database queries via the vid parameter, potentially enabling unauthorized data access, modification, or deletion from the application's database.

Affected Products

• Admerc Apartment Management System 1.0

Discovery Timeline

• 2025-08-27 - CVE CVE-2025-9507 published to NVD
• 2025-09-02 - Last updated in NVD database

Technical Details for CVE-2025-9507

Vulnerability Analysis

This vulnerability stems from improper input validation in the visitor information reporting functionality of the Apartment Management System. The /report/visitor_info.php endpoint accepts a vid parameter that is not properly sanitized before being incorporated into SQL queries. This allows attackers to inject arbitrary SQL code that will be executed by the database server.

The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component), which encompasses injection vulnerabilities where user-controlled input is not properly sanitized before being passed to an interpreter. In this case, the downstream component is the SQL database engine.

Root Cause

The root cause of this vulnerability is the failure to implement proper input validation and parameterized queries for the vid argument in the /report/visitor_info.php file. The application directly concatenates user-supplied input into SQL queries without sanitization or the use of prepared statements, enabling SQL injection attacks.

Attack Vector

The attack vector is network-based, allowing remote exploitation without authentication. An attacker can craft malicious HTTP requests to the vulnerable endpoint, manipulating the vid parameter to inject SQL statements. The exploitation process typically involves:

1. Identifying the vulnerable endpoint at /report/visitor_info.php
2. Crafting a malicious vid parameter value containing SQL injection payloads
3. Sending the crafted request to extract, modify, or delete database contents
4. Potentially escalating to further system compromise depending on database privileges

The vulnerability has been publicly disclosed with exploit details available through the GitHub Issue Tracker, making it accessible to potential attackers.

Detection Methods for CVE-2025-9507

Indicators of Compromise

• Unusual or malformed requests to /report/visitor_info.php containing SQL syntax in the vid parameter
• Database error messages in application logs indicating SQL syntax errors
• Unexpected database queries or data access patterns in database audit logs
• Access to sensitive data tables that should not be reached through normal application flow

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in requests to /report/visitor_info.php
• Monitor HTTP access logs for suspicious requests containing SQL keywords such as UNION, SELECT, INSERT, DELETE, or comment sequences like -- and /*
• Deploy database activity monitoring to detect anomalous query patterns
• Review application logs for unexpected errors or exceptions from the visitor reporting module

Monitoring Recommendations

• Enable detailed logging for the /report/visitor_info.php endpoint and associated database queries
• Configure alerting for requests containing common SQL injection payloads
• Implement rate limiting on the vulnerable endpoint to slow down automated exploitation attempts
• Monitor for reconnaissance activities targeting the Apartment Management System

How to Mitigate CVE-2025-9507

Immediate Actions Required

• Restrict access to /report/visitor_info.php using network-level controls or authentication requirements
• Implement input validation for the vid parameter to accept only expected numeric values
• Deploy a Web Application Firewall with SQL injection detection rules
• Consider taking the application offline if it handles sensitive data until a patch is applied

Patch Information

At the time of this writing, no official patch has been released by the vendor for this vulnerability. Organizations using the Admerc Apartment Management System should monitor the IT Source Code website for security updates. Additional technical details and community discussions can be found on VulDB.

Workarounds

• Implement parameterized queries (prepared statements) for all database interactions involving the vid parameter
• Apply strict input validation to ensure the vid parameter contains only expected data types (e.g., integers)
• Restrict network access to the application to trusted IP addresses only
• Consider implementing additional authentication requirements for the reporting functionality

# Example: Restrict access to the vulnerable endpoint using Apache .htaccess
# Add to .htaccess file in the application root directory
<Files "visitor_info.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    # Replace with your trusted IP range
</Files>