CVE-2021-43052
📋 TL;DR
This vulnerability allows attackers to bypass authentication in TIBCO FTL Realm Server due to a hard-coded secret in default configurations. It affects all TIBCO FTL editions (Community, Developer, Enterprise) up to version 6.7.2. Attackers can gain unauthorized access without valid credentials.
💻 Affected Systems
- TIBCO FTL - Community Edition
- TIBCO FTL - Developer Edition
- TIBCO FTL - Enterprise Edition
📦 What is this software?
Ftl by Tibco
Ftl by Tibco
Ftl by Tibco
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to access sensitive data, modify configurations, or disrupt messaging services across the entire FTL infrastructure.
Likely Case
Unauthorized access to messaging systems leading to data exfiltration, message interception, or service disruption.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to vulnerable systems.
🎯 Exploit Status
Authentication bypass vulnerabilities are typically easy to exploit once the hard-coded secret is discovered. No authentication required to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.7.3 and above
Vendor Advisory: https://www.tibco.com/support/advisories/2022/01/tibco-security-advisory-january-11-2022-tibco-ftl-2021-43052
Restart Required: Yes
Instructions:
1. Download TIBCO FTL version 6.7.3 or later from TIBCO support portal. 2. Backup current configuration and data. 3. Stop all FTL services. 4. Install the updated version. 5. Restart services and verify functionality.
🔧 Temporary Workarounds
Disable Default Realm Server
allReplace default Realm Server with custom authentication configuration using unique secrets
Modify realm-server-config.xml to use custom authentication provider
Replace hard-coded secrets with unique values
Network Isolation
allRestrict network access to FTL Realm Server ports
firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="TRUSTED_IP" port protocol="tcp" port="PORT_NUMBER" accept'
netsh advfirewall firewall add rule name="Block FTL Auth" dir=in action=block protocol=TCP localport=PORT_NUMBER
🧯 If You Can't Patch
- Implement strict network access controls to limit connections to FTL Realm Server only from trusted sources
- Monitor authentication logs for unauthorized access attempts and implement alerting
🔍 How to Verify
Check if Vulnerable:
Check TIBCO FTL version: if version is 6.7.2 or below, system is vulnerable. Also check if using default Realm Server configuration.Check Version:
ftladmin version (on Windows) or ./ftladmin version (on Linux)Verify Fix Applied:
Verify installed version is 6.7.3 or higher and test authentication with invalid credentials should fail.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- Authentication events using default/hard-coded credentials
- Unusual access patterns to Realm Server
Network Indicators:
- Unauthorized connections to FTL Realm Server ports (typically 443 or custom ports)
- Authentication bypass attempts
SIEM Query:
source="ftl_logs" AND (event_type="authentication" AND result="success" AND (credential_source="default" OR user="default"))🔗 References
- https://www.tibco.com/services/support/advisories
- https://www.tibco.com/support/advisories/2022/01/tibco-security-advisory-january-11-2022-tibco-ftl-2021-43052
- https://www.tibco.com/services/support/advisories
- https://www.tibco.com/support/advisories/2022/01/tibco-security-advisory-january-11-2022-tibco-ftl-2021-43052
