CVE-2021-37832
📋 TL;DR
CVE-2021-37832 is a critical SQL injection vulnerability in Hotel Druid 3.0.2 when using SQLite database. Attackers can execute arbitrary SQL commands through the idappartamenti parameter, potentially compromising the entire database. This affects all Hotel Druid 3.0.2 installations using SQLite.
💻 Affected Systems
- Hotel Druid
📦 What is this software?
Hoteldruid by Digitaldruid
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, privilege escalation, and potential remote code execution via SQLite functions.
Likely Case
Unauthorized data access, data modification, and potential extraction of sensitive hotel guest information and business data.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only error messages or limited data exposure.
🎯 Exploit Status
Public exploit code available on GitHub. SQL injection is straightforward through the idappartamenti parameter.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.3 or later
Vendor Advisory: https://www.hoteldruid.com
Restart Required: Yes
Instructions:
1. Download latest version from hoteldruid.com. 2. Backup current installation and database. 3. Install new version following vendor instructions. 4. Restart application services.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize idappartamenti parameter before processing
Implement parameterized queries or input validation in affected code
Web Application Firewall
allDeploy WAF with SQL injection protection rules
Configure WAF to block SQL injection patterns in requests
🧯 If You Can't Patch
- Isolate Hotel Druid system from internet and restrict network access
- Implement strict input validation and parameterized queries in application code
🔍 How to Verify
Check if Vulnerable:
Check if running Hotel Druid 3.0.2 with SQLite database and test idappartamenti parameter for SQL injectionCheck Version:
Check Hotel Druid admin interface or configuration files for version informationVerify Fix Applied:
Verify version is 3.0.3 or later and test idappartamenti parameter no longer accepts SQL injection📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in application logs
- Error messages containing SQL syntax
- Multiple failed login attempts or parameter manipulation
Network Indicators:
- SQL keywords in HTTP parameters
- Unusual database connection patterns
- Excessive requests to idappartamenti endpoint
SIEM Query:
source="hoteldruid.log" AND ("SQL" OR "syntax" OR "idappartamenti")