CVE-2020-4690
📋 TL;DR
IBM Security Guardium 11.3 contains hard-coded credentials that could allow attackers to authenticate to the system, communicate with external components, or decrypt internal data. This affects all deployments of IBM Security Guardium 11.3 that haven't been patched.
💻 Affected Systems
- IBM Security Guardium
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to bypass authentication, access sensitive data, execute arbitrary commands, and pivot to other systems.
Likely Case
Unauthorized access to Guardium databases, configuration files, and sensitive audit logs, potentially leading to data exfiltration or system manipulation.
If Mitigated
Limited impact if network segmentation prevents external access and internal monitoring detects anomalous authentication attempts.
🎯 Exploit Status
Hard-coded credentials are trivial to exploit once discovered. No authentication required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply fix pack 11.3.0.0-ISS-GUARD-IF0010 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/6491125
Restart Required: Yes
Instructions:
1. Download fix pack from IBM Fix Central. 2. Backup current configuration. 3. Apply fix pack following IBM documentation. 4. Restart Guardium services. 5. Verify patch application.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Guardium systems from untrusted networks and limit access to authorized IPs only.
Use firewall rules to restrict access to Guardium ports (e.g., 8443, 443)
Credential Rotation
allManually change any credentials that can be identified as hard-coded, though this may break functionality.
Change passwords for Guardium service accounts and API keys
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach Guardium systems
- Enable detailed authentication logging and monitor for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check if running Guardium 11.3 without the fix pack applied. Review system logs for unexpected authentication using known hard-coded credentials.Check Version:
Login to Guardium and check version in administration console or run: guardium versionVerify Fix Applied:
Verify fix pack 11.3.0.0-ISS-GUARD-IF0010 or later is installed and check that hard-coded credentials no longer work.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful logins with unusual timing
- Multiple login attempts from same source with different credentials
- Authentication logs showing use of default/hard-coded usernames
Network Indicators:
- Unusual outbound connections from Guardium to external systems
- Traffic patterns indicating data exfiltration
- Authentication attempts to Guardium from unexpected IP ranges
SIEM Query:
source="guardium" AND (event_type="authentication" AND (user="default*" OR user="admin*" OR result="success" FROM suspicious_ip))