CVE-2024-31467
📋 TL;DR
This critical vulnerability allows unauthenticated attackers to execute arbitrary code with privileged access on Aruba access points by sending specially crafted packets to UDP port 8211. It affects ArubaOS-based access points and controllers, potentially compromising entire wireless networks.
💻 Affected Systems
- Aruba Access Points
- Aruba Mobility Controllers
- Aruba Gateways
📦 What is this software?
Arubaos by Arubanetworks
Arubaos by Arubanetworks
⚠️ Risk & Real-World Impact
Worst Case
Complete network compromise with attacker gaining privileged access to all affected devices, enabling lateral movement, data exfiltration, and persistent backdoors.
Likely Case
Remote code execution leading to device takeover, network disruption, and credential harvesting from connected devices.
If Mitigated
Limited impact if devices are behind firewalls with strict network segmentation and PAPI port blocking.
🎯 Exploit Status
Exploitation requires sending crafted UDP packets to port 8211. No authentication or user interaction needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: ArubaOS 10.5.1.1, 10.4.2.1, 10.3.2.1, 8.11.2.1, 8.10.0.9, 8.9.0.7, 8.8.0.1, 8.7.1.1, 8.6.0.22, 8.5.0.1, 8.4.0.1
Vendor Advisory: https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2024-006.txt
Restart Required: Yes
Instructions:
1. Download appropriate firmware from Aruba Support Portal. 2. Backup configuration. 3. Apply firmware update via web interface or CLI. 4. Reboot device. 5. Verify version with 'show version' command.
🔧 Temporary Workarounds
Block PAPI Port
allBlock UDP port 8211 at network perimeter and between network segments
iptables -A INPUT -p udp --dport 8211 -j DROP
netsh advfirewall firewall add rule name="Block Aruba PAPI" dir=in action=block protocol=UDP localport=8211
Disable PAPI Service
linuxDisable PAPI service on Aruba devices if not required
no papi
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices
- Deploy intrusion prevention systems with signatures for CVE-2024-31467
🔍 How to Verify
Check if Vulnerable:
Check ArubaOS version with 'show version' command and compare against affected versions listCheck Version:
show versionVerify Fix Applied:
Verify version is patched with 'show version' and ensure it matches fixed versions📡 Detection & Monitoring
Log Indicators:
- Unexpected reboots
- Unusual CLI commands
- Failed authentication attempts from localhost
Network Indicators:
- UDP traffic to port 8211 from unexpected sources
- Large or malformed UDP packets to port 8211
SIEM Query:
source_port=8211 AND (packet_size>1000 OR protocol=UDP) AND NOT src_ip IN [trusted_management_ips]