CVE-2021-31601
📋 TL;DR
This vulnerability allows any authenticated user in Hitachi Vantara Pentaho systems to retrieve database connection details and credentials via SOAP web services, regardless of their privilege level. It affects Pentaho through version 9.1 and Pentaho Business Intelligence Server through version 7.x. This exposes sensitive database credentials to unauthorized users.
💻 Affected Systems
- Hitachi Vantara Pentaho
- Pentaho Business Intelligence Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full access to backend databases, leading to data exfiltration, data manipulation, or lateral movement to other systems using stolen credentials.
Likely Case
Malicious insiders or compromised accounts extract database credentials, potentially accessing sensitive business data or using credentials for further attacks.
If Mitigated
With proper access controls and network segmentation, impact is limited to credential exposure without direct database access.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward via SOAP requests. Public exploit details available in Packet Storm references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Hitachi security advisories for specific patched versions
Vendor Advisory: https://www.hitachi.com/hirt/security/index.html
Restart Required: Yes
Instructions:
1. Check Hitachi security advisory for specific patch versions. 2. Apply vendor-provided patches or upgrade to fixed versions. 3. Restart Pentaho services after patching. 4. Verify SOAP web service access controls are properly enforced.
🔧 Temporary Workarounds
Disable SOAP Web Services
allDisable SOAP web service endpoints if not required for business operations
Modify Pentaho configuration files to disable SOAP endpoints
Consult Pentaho documentation for specific configuration changes
Network Access Control
allRestrict access to Pentaho SOAP endpoints using firewall rules or network segmentation
Configure firewall to allow only trusted IPs to access Pentaho SOAP ports
Implement network segmentation to isolate Pentaho servers
🧯 If You Can't Patch
- Implement strict access controls and monitor all authenticated user activity on Pentaho systems
- Rotate all database credentials exposed through Pentaho and monitor for unauthorized database access
🔍 How to Verify
Check if Vulnerable:
Test if authenticated users can access SOAP endpoints that list database connections. Use tools like SOAPUI with valid credentials to query Pentaho web services.Check Version:
Check Pentaho version through web interface or configuration files. For Linux: cat /pentaho/server/pentaho-server/version.txtVerify Fix Applied:
After patching, verify that authenticated users without proper privileges cannot retrieve database connection details via SOAP requests.📡 Detection & Monitoring
Log Indicators:
- Unusual SOAP requests to database connection endpoints
- Multiple failed authentication attempts followed by successful SOAP requests
- User accounts accessing SOAP services they don't normally use
Network Indicators:
- SOAP traffic to Pentaho servers from unexpected sources
- Patterns of SOAP requests to database-related endpoints
SIEM Query:
source="pentaho" AND (uri="*soap*" OR method="POST") AND (uri="*database*" OR uri="*connection*")🔗 References
- http://packetstormsecurity.com/files/164779/Pentaho-Business-Analytics-Pentaho-Business-Server-9.1-Insufficient-Access-Control.html
- https://www.hitachi.com/hirt/security/index.html
- http://packetstormsecurity.com/files/164779/Pentaho-Business-Analytics-Pentaho-Business-Server-9.1-Insufficient-Access-Control.html
- https://www.hitachi.com/hirt/security/index.html
