CVE-2024-29966
📋 TL;DR
CVE-2024-29966 is a vulnerability in Brocade SANnav OVA appliances where hard-coded root credentials are documented, allowing unauthenticated attackers to gain full administrative access. This affects organizations using Brocade SANnav OVA versions before v2.3.1 and v2.3.0a for storage area network management. Attackers could completely compromise the appliance and potentially pivot to connected storage infrastructure.
💻 Affected Systems
- Brocade SANnav OVA
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the SANnav appliance leading to full administrative control, data exfiltration from managed storage systems, service disruption, and lateral movement to connected SAN infrastructure.
Likely Case
Unauthenticated attackers gaining root access to the appliance, potentially modifying configurations, accessing sensitive SAN data, and disrupting storage management operations.
If Mitigated
Limited impact if appliance is isolated in secure network segments with strict access controls, though credential exposure remains a significant risk.
🎯 Exploit Status
Exploitation requires only knowledge of the documented credentials and network access to the appliance. No special tools or skills needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2.3.1 or v2.3.0a
Vendor Advisory: https://support.broadcom.com/external/content/SecurityAdvisories/0/23255
Restart Required: Yes
Instructions:
1. Download Brocade SANnav OVA v2.3.1 or v2.3.0a from Broadcom support portal. 2. Deploy the updated OVA following standard virtualization procedures. 3. Migrate configuration from existing appliance. 4. Decommission old vulnerable appliance.
🔧 Temporary Workarounds
Change root password immediately
linuxManually change the root password on the appliance to a strong, unique credential not documented anywhere.
ssh root@<appliance_ip>
passwd
Enter new strong password
Restrict network access
allImplement strict network segmentation and firewall rules to limit access to the SANnav appliance only from authorized management networks.
🧯 If You Can't Patch
- Immediately change the root password to a strong, unique credential and ensure it's not documented anywhere
- Implement strict network segmentation with firewall rules allowing only authorized IP addresses to access the appliance management interface
🔍 How to Verify
Check if Vulnerable:
Check appliance version via web interface or SSH. Versions before v2.3.1 and v2.3.0a are vulnerable. Also check if default/hard-coded credentials work.Check Version:
ssh root@<appliance_ip> 'cat /etc/version' or check web interface About pageVerify Fix Applied:
Verify appliance version is v2.3.1 or v2.3.0a. Test that previously documented credentials no longer provide access.📡 Detection & Monitoring
Log Indicators:
- Failed SSH authentication attempts followed by successful root login
- Multiple root login attempts from unusual sources
- Authentication logs showing root access from unexpected IPs
Network Indicators:
- SSH connections to appliance on port 22 from unauthorized sources
- Unusual traffic patterns to/from the SANnav appliance
SIEM Query:
source="auth.log" AND (event="Accepted password for root" OR event="session opened for user root") AND NOT src_ip IN [authorized_management_ips]