CVE-2023-34487
📋 TL;DR
CVE-2023-34487 is a critical SQL injection vulnerability in itsourcecode Online Hotel Management System v1.0.0 that allows attackers to execute arbitrary SQL commands through the login password field. This affects all deployments of this specific PHP-based hotel management software version. Attackers can potentially bypass authentication, extract sensitive data, or compromise the database.
💻 Affected Systems
- itsourcecode Online Hotel Management System Project In PHP
📦 What is this software?
Online Hotel Management System by Online Hotel Management System Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to theft of all guest information, financial data, and administrative credentials, potentially enabling full system takeover.
Likely Case
Authentication bypass allowing unauthorized access to the hotel management system, followed by data exfiltration of guest records and potential privilege escalation.
If Mitigated
Limited impact if proper input validation and parameterized queries are implemented, restricting attackers to time-based blind SQL injection with slower data extraction.
🎯 Exploit Status
Public proof-of-concept exists on GitHub demonstrating time-based blind SQL injection. The vulnerability requires no authentication and can be exploited with standard SQL injection tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official vendor advisory found
Restart Required: No
Instructions:
1. Check if newer versions exist from the vendor. 2. If no patch available, implement parameterized queries in the login.php file. 3. Replace direct user input concatenation with prepared statements. 4. Add input validation for the password field.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns in login requests
Input Validation Filter
linuxAdd server-side input validation to reject SQL special characters in password field
// PHP example: if (preg_match('/[\'\"\;\-\-\/\*\=]/', $password)) { die('Invalid input'); }
🧯 If You Can't Patch
- Isolate the system behind a firewall with strict access controls
- Implement network segmentation to limit database access from the web server
🔍 How to Verify
Check if Vulnerable:
Test the login page with SQL injection payloads like: ' OR SLEEP(5)-- and observe delayed responsesCheck Version:
Check the software version in the admin panel or review source code headers for version informationVerify Fix Applied:
Attempt SQL injection tests after fixes; successful fixes should return immediate error responses or reject malicious input📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts with SQL keywords
- Unusually long request processing times
- Requests containing SQL injection patterns like SLEEP(), WAITFOR DELAY, or UNION SELECT
Network Indicators:
- HTTP POST requests to login.php with SQL payloads
- Unusual database query patterns from web server IP
SIEM Query:
source="web_logs" AND (url="*/login.php" OR url="*/login") AND (message="*SLEEP*" OR message="*UNION*" OR message="*SELECT*" OR message="*OR*1=1*")