CVE-2018-18202
📋 TL;DR
This CVE reveals undocumented hardcoded accounts with known passwords in QLogic Fibre Channel modules for IBM BladeCenter. Attackers can use these credentials to gain unauthorized administrative access to affected systems. Organizations using IBM BladeCenter with QLogic 4Gb Fibre Channel or 4/8Gb SAN modules are affected.
💻 Affected Systems
- IBM BladeCenter QLogic 4Gb Fibre Channel Module
- IBM BladeCenter QLogic 4/8Gb SAN Module
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of affected BladeCenter infrastructure, allowing attackers to reconfigure storage, intercept data, deploy malware, or disrupt operations.
Likely Case
Unauthorized administrative access to storage modules, enabling configuration changes, data access, and potential lateral movement to connected systems.
If Mitigated
Limited impact if network segmentation isolates storage modules and strong access controls prevent unauthorized network access.
🎯 Exploit Status
Exploitation requires network access to management interface and knowledge of hardcoded credentials. No special tools needed beyond standard SSH/Telnet clients.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check IBM support for updated firmware
Vendor Advisory: https://www.ibm.com/support/pages/node/1106565
Restart Required: Yes
Instructions:
1. Check IBM support for latest firmware. 2. Backup current configuration. 3. Download and apply firmware update. 4. Reboot affected modules. 5. Verify update and reconfigure if needed.
🔧 Temporary Workarounds
Network Segmentation
allIsolate storage module management interfaces from general network access
Access Control Lists
allImplement strict firewall rules limiting access to module management interfaces
🧯 If You Can't Patch
- Implement strict network segmentation to isolate storage modules
- Monitor for authentication attempts using support/diags/prom accounts
🔍 How to Verify
Check if Vulnerable:
Check firmware version via module management interface or IBM BladeCenter management consoleCheck Version:
Varies by management interface - typically via SSH/Telnet or web interfaceVerify Fix Applied:
Verify firmware version is updated and test that hardcoded credentials no longer work📡 Detection & Monitoring
Log Indicators:
- Authentication attempts using 'support', 'diags', or 'prom' accounts
- Unusual configuration changes to storage modules
Network Indicators:
- Unexpected SSH/Telnet connections to storage module management ports
- Traffic from storage modules to unusual destinations
SIEM Query:
source_ip="storage_module_ip" AND (username="support" OR username="diags" OR username="prom")