CVE-2022-22909
📋 TL;DR
HotelDruid v3.0.3 contains a remote code execution vulnerability where attackers can inject malicious payloads into the 'name' field when creating new rooms. This allows arbitrary code execution on the server with the privileges of the HotelDruid application. All users running the vulnerable version are affected.
💻 Affected Systems
- HotelDruid
📦 What is this software?
Hoteldruid by Digitaldruid
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, install malware, steal data, pivot to other systems, or establish persistent access.
Likely Case
Attackers gain shell access to the HotelDruid server, potentially accessing sensitive guest data, modifying reservations, or disrupting hotel operations.
If Mitigated
Limited impact with proper input validation, web application firewalls, and network segmentation preventing successful exploitation.
🎯 Exploit Status
Exploitation requires authentication to access the Create New Room module, but the vulnerability is easily weaponized once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v3.0.4 or later
Vendor Advisory: https://www.hoteldruid.com
Restart Required: Yes
Instructions:
1. Backup current HotelDruid installation and database. 2. Download latest version from hoteldruid.com. 3. Replace existing files with updated version. 4. Restart web server and verify functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize the 'name' field in Create New Room module
Modify HotelDruid source code to filter special characters in room name input
Web Application Firewall
allDeploy WAF with rules to detect and block RCE payloads in POST requests
Configure WAF to inspect /admin/room_create.php requests for suspicious patterns
🧯 If You Can't Patch
- Restrict access to HotelDruid admin interface using IP whitelisting and strong authentication
- Implement network segmentation to isolate HotelDruid server from critical systems
🔍 How to Verify
Check if Vulnerable:
Check HotelDruid version in admin interface or by examining source files for version markersCheck Version:
Check /admin/index.php or look for version information in page sourceVerify Fix Applied:
Verify version is v3.0.4 or later and test room creation with special characters in name field📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /admin/room_create.php with special characters
- System commands executed from HotelDruid process
- Multiple failed authentication attempts followed by successful login
Network Indicators:
- Outbound connections from HotelDruid server to suspicious IPs
- Unusual traffic patterns from HotelDruid application
SIEM Query:
source="hoteldruid_logs" AND (url_path="/admin/room_create.php" AND (request_body CONTAINS "system(" OR request_body CONTAINS "exec(" OR request_body CONTAINS "shell_exec("))