CVE-2024-0101
📋 TL;DR
This vulnerability in NVIDIA networking products allows attackers to cause denial of service through improper ipfilter definitions. Attackers can exploit this to crash switches, disrupting network operations. Organizations using affected NVIDIA Mellanox, ONYX, Skyway, MetroX-2, and MetroX-3 XC products are at risk.
💻 Affected Systems
- NVIDIA Mellanox OS
- ONYX
- Skyway
- MetroX-2
- MetroX-3 XC
📦 What is this software?
Mlnx Gw by Nvidia
Mlnx Gw by Nvidia
Mlnx Os by Nvidia
Mlnx Os by Nvidia
Onyx by Nvidia
⚠️ Risk & Real-World Impact
Worst Case
Complete network switch failure causing widespread service disruption and network downtime across affected infrastructure.
Likely Case
Targeted switch crashes affecting specific network segments, leading to partial service disruption until manual intervention.
If Mitigated
Minimal impact with proper network segmentation and monitoring allowing rapid detection and recovery.
🎯 Exploit Status
Exploitation requires ability to manipulate ipfilter definitions, suggesting some level of access or privilege is needed. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check NVIDIA advisory for specific fixed versions
Vendor Advisory: https://nvidia.custhelp.com/app/answers/detail/a_id/5559
Restart Required: Yes
Instructions:
1. Review NVIDIA advisory for affected versions. 2. Download appropriate patches from NVIDIA support portal. 3. Apply patches following vendor documentation. 4. Restart affected switches to apply changes. 5. Verify patch application and functionality.
🔧 Temporary Workarounds
Disable ipfilter if not required
allTemporarily disable ipfilter functionality to prevent exploitation until patching can occur
# Check current ipfilter configuration
# Disable ipfilter via vendor-specific commands (consult documentation)
Restrict ipfilter configuration access
allLimit administrative access to ipfilter configuration to authorized personnel only
# Implement role-based access controls
# Restrict management interface access
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable switches from untrusted networks
- Deploy network monitoring to detect abnormal ipfilter configuration changes or switch crash events
🔍 How to Verify
Check if Vulnerable:
Check switch version against NVIDIA advisory and verify if ipfilter is enabled in configurationCheck Version:
# Use vendor-specific CLI commands to check OS version (e.g., 'show version' or similar)Verify Fix Applied:
Verify patch version is installed and test ipfilter functionality to ensure stability📡 Detection & Monitoring
Log Indicators:
- Unexpected switch reboots
- ipfilter configuration changes from unauthorized sources
- System crash logs related to ipfilter
Network Indicators:
- Sudden loss of connectivity to affected switches
- Abnormal traffic patterns targeting switch management interfaces
SIEM Query:
Example: (event_type:switch_crash OR event_type:configuration_change) AND component:ipfilter