CVE-2019-18868
📋 TL;DR
CVE-2019-18868 allows unauthenticated attackers to retrieve MySQL database credentials stored in cleartext within Blaauw Remote Kiln Control software files. This affects all systems running vulnerable versions of the kiln control software, potentially exposing sensitive database access.
💻 Affected Systems
- Blaauw Remote Kiln Control
📦 What is this software?
Remote Kiln Control by Blaauwproducts
Remote Kiln Control by Blaauwproducts
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full database access, leading to data theft, manipulation of kiln control systems, or complete system compromise through privilege escalation.
Likely Case
Attackers extract database credentials and access sensitive kiln operation data, potentially modifying configurations or disrupting industrial processes.
If Mitigated
With proper network segmentation and access controls, impact is limited to credential exposure without direct database access.
🎯 Exploit Status
Simple HTTP requests to vulnerable file paths can retrieve credentials without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Remove or secure vulnerable backup files and implement workarounds.
🔧 Temporary Workarounds
Remove vulnerable backup files
allDelete or restrict access to /engine/db.inc, /lang/nl.bak, and /lang/en.bak files
rm /path/to/webroot/engine/db.inc
rm /path/to/webroot/lang/nl.bak
rm /path/to/webroot/lang/en.bak
Implement web server access controls
linuxConfigure web server to deny access to .inc and .bak files
Add to Apache .htaccess: <FilesMatch "\.(inc|bak)$">
Order allow,deny
Deny from all
</FilesMatch>
For Nginx: location ~ \.(inc|bak)$ { deny all; }
🧯 If You Can't Patch
- Implement strict network segmentation to isolate kiln control systems from untrusted networks
- Deploy web application firewall (WAF) rules to block access to vulnerable file paths
🔍 How to Verify
Check if Vulnerable:
Attempt HTTP GET requests to /engine/db.inc, /lang/nl.bak, and /lang/en.bak on the kiln control web interfaceCheck Version:
Check software version in web interface or configuration filesVerify Fix Applied:
Verify files are removed or return 403/404 errors, and test that legitimate functionality remains operational📡 Detection & Monitoring
Log Indicators:
- HTTP 200 responses to .inc or .bak file requests in web server logs
- Unusual database connection attempts from web server IP
Network Indicators:
- HTTP requests to /engine/db.inc, /lang/nl.bak, or /lang/en.bak paths
- Subsequent MySQL connection attempts from unexpected sources
SIEM Query:
web_access_logs | where url contains "db.inc" or url contains ".bak" | where response_code = 200