CVE-2019-16211
📋 TL;DR
Brocade SANnav versions before 2.1.0 store passwords in plaintext instead of using secure hashing. This vulnerability allows attackers with access to the system to read sensitive credentials. Organizations using Brocade SANnav for Fibre Channel network management are affected.
💻 Affected Systems
- Brocade SANnav
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain administrative access to SANnav, compromising the entire Fibre Channel storage network, potentially accessing sensitive data and disrupting storage operations.
Likely Case
Attackers with existing access to the system extract stored credentials, escalating privileges or moving laterally within the network.
If Mitigated
With proper network segmentation and access controls, impact is limited to the SANnav management system itself.
🎯 Exploit Status
Exploitation requires some level of system access to read stored credentials
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2.1.0 and later
Vendor Advisory: https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2020-1076
Restart Required: Yes
Instructions:
1. Download SANnav v2.1.0 or later from Broadcom support portal. 2. Backup current configuration. 3. Apply the update following Brocade SANnav upgrade procedures. 4. Restart the SANnav services.
🔧 Temporary Workarounds
Credential Rotation
allChange all passwords stored in SANnav to limit exposure if credentials are extracted
Access Restriction
allImplement strict access controls to SANnav management interface
🧯 If You Can't Patch
- Isolate SANnav management network from general corporate network
- Implement multi-factor authentication for SANnav access
🔍 How to Verify
Check if Vulnerable:
Check SANnav version via web interface or CLI. Versions before 2.1.0 are vulnerable.Check Version:
Check via SANnav web interface: Admin > About, or use SANnav CLI commandsVerify Fix Applied:
Confirm version is 2.1.0 or later and verify passwords are no longer stored in plaintext locations📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to SANnav management interface
- Unusual credential access patterns
Network Indicators:
- Unexpected connections to SANnav management ports
- Credential extraction attempts
SIEM Query:
source="SANnav" AND (event_type="authentication" OR event_type="credential_access")