CVE-2024-33518
📋 TL;DR
An unauthenticated Denial-of-Service vulnerability in Aruba's Radio Frequency Manager service allows attackers to disrupt service operation via the PAPI protocol. This affects Aruba networking products running vulnerable versions of the service. Attackers can exploit this without credentials to cause service interruption.
💻 Affected Systems
- Aruba Radio Frequency Manager
📦 What is this software?
Arubaos by Arubanetworks
Arubaos by Arubanetworks
Arubaos by Arubanetworks
Arubaos by Arubanetworks
⚠️ Risk & Real-World Impact
Worst Case
Complete disruption of Radio Frequency Manager service, potentially affecting wireless network management and monitoring capabilities.
Likely Case
Service interruption requiring manual restart, causing temporary loss of RF management functionality.
If Mitigated
Minimal impact with proper network segmentation and access controls limiting PAPI protocol exposure.
🎯 Exploit Status
Unauthenticated exploitation via PAPI protocol makes this relatively easy to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Aruba advisory ARUBA-PSA-2024-004 for specific patched versions.
Vendor Advisory: https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2024-004.txt
Restart Required: Yes
Instructions:
1. Review Aruba advisory ARUBA-PSA-2024-004
2. Identify affected product versions
3. Apply vendor-provided patches
4. Restart affected services
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to PAPI protocol to trusted management networks only.
Configure firewall rules to block PAPI protocol (typically UDP 8211) from untrusted networks
Service Disablement
allDisable Radio Frequency Manager service if not required.
Check Aruba documentation for service disablement commands specific to your platform
🧯 If You Can't Patch
- Implement strict network access controls to limit PAPI protocol exposure to trusted sources only.
- Monitor for unusual PAPI traffic patterns and service restart events.
🔍 How to Verify
Check if Vulnerable:
Check if Radio Frequency Manager service is running and accessible via PAPI protocol on vulnerable versions.Check Version:
Check Aruba device CLI for software version (platform-specific, typically 'show version')Verify Fix Applied:
Verify patch installation via version check and test service accessibility after applying controls.📡 Detection & Monitoring
Log Indicators:
- Unexpected service restarts of Radio Frequency Manager
- High volume of PAPI protocol requests
- Connection attempts from unusual sources to PAPI port
Network Indicators:
- Unusual UDP traffic on port 8211 (typical PAPI port)
- Traffic patterns suggesting DoS attempts
SIEM Query:
source_port:8211 OR dest_port:8211 AND (event_type:connection_denied OR bytes_sent>threshold)