CVE-2024-31473
📋 TL;DR
This critical vulnerability in Aruba access points allows unauthenticated attackers to execute arbitrary commands with root privileges by sending malicious packets to port 8211. It affects ArubaOS 10 devices and could lead to complete system compromise. Organizations using vulnerable Aruba access points are at immediate risk.
💻 Affected Systems
- Aruba Access Points running ArubaOS 10
📦 What is this software?
Arubaos by Arubanetworks
Arubaos by Arubanetworks
⚠️ Risk & Real-World Impact
Worst Case
Complete network compromise with attacker gaining root access to access points, pivoting to internal networks, deploying ransomware, or establishing persistent backdoors.
Likely Case
Attacker gains control of access points to intercept network traffic, deploy malware, or disrupt wireless services across the organization.
If Mitigated
If properly segmented and monitored, impact limited to isolated wireless network segment with quick detection and containment.
🎯 Exploit Status
The vulnerability requires no authentication and has a simple exploitation path via UDP packets. While no public PoC exists, the technical details make weaponization straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: ArubaOS 10.5.1.0 or later
Vendor Advisory: https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2024-006.txt
Restart Required: Yes
Instructions:
1. Download ArubaOS 10.5.1.0 or later from Aruba Support Portal. 2. Upload firmware to Mobility Conductor. 3. Schedule maintenance window. 4. Deploy update to affected access points. 5. Reboot access points to apply update.
🔧 Temporary Workarounds
Block PAPI Port
allBlock UDP port 8211 at network perimeter and internally to prevent exploitation
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
Segment Wireless Network
allIsolate wireless network from critical infrastructure using VLANs and firewall rules
🧯 If You Can't Patch
- Implement strict network segmentation to isolate wireless infrastructure from critical systems
- Deploy network monitoring and IDS/IPS rules to detect and block exploitation attempts on port 8211
🔍 How to Verify
Check if Vulnerable:
Check ArubaOS version on access points via Mobility Conductor GUI or CLI: show ap database | include <AP-Name>Check Version:
show version (on AP CLI) or show ap database detailed (on Mobility Conductor)Verify Fix Applied:
Verify all access points are running ArubaOS 10.5.1.0 or later: show ap database detailed | include "Software Version"📡 Detection & Monitoring
Log Indicators:
- Unusual PAPI protocol activity
- Unexpected process execution on access points
- Authentication failures followed by successful commands
Network Indicators:
- UDP traffic to port 8211 with unusual payload patterns
- Outbound connections from access points to unexpected destinations
SIEM Query:
source_port=8211 OR dest_port=8211 AND (protocol=UDP AND (payload_size>1000 OR payload_contains="cmd" OR payload_contains="sh"))