CVE-2024-33511
📋 TL;DR
This is a critical buffer overflow vulnerability in Aruba's Automatic Reporting service that allows unauthenticated attackers to execute arbitrary code with privileged access by sending specially crafted packets to UDP port 8211. It affects Aruba access points and controllers running vulnerable versions, potentially compromising entire network infrastructure.
💻 Affected Systems
- Aruba Access Points
- Aruba Mobility Controllers
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of affected Aruba devices leading to network takeover, data exfiltration, lateral movement to other systems, and persistent backdoor installation.
Likely Case
Remote code execution leading to device compromise, credential theft, network reconnaissance, and potential ransomware deployment.
If Mitigated
Limited impact if devices are behind firewalls with strict UDP port filtering and network segmentation, though risk remains for exposed devices.
🎯 Exploit Status
The vulnerability requires sending crafted UDP packets to port 8211, which is relatively straightforward for attackers with network access to the target.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to 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 devices and versions. 3. Download and apply the appropriate firmware update from Aruba support portal. 4. Reboot affected devices after patching. 5. Verify patch installation and functionality.
🔧 Temporary Workarounds
Network Access Control
allBlock UDP port 8211 at network perimeter and segment internal access.
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
VLAN Segmentation
allIsolate Aruba management traffic to dedicated VLANs with strict access controls.
🧯 If You Can't Patch
- Implement strict firewall rules to block UDP port 8211 from all untrusted networks
- Segment Aruba devices into isolated management networks with limited access
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Aruba advisory ARUBA-PSA-2024-004. Also verify if UDP port 8211 is open and accessible.Check Version:
show version (on Aruba CLI) or check web interface for firmware versionVerify Fix Applied:
Confirm firmware version is updated to patched version listed in Aruba advisory and test that UDP port 8211 still functions for legitimate management traffic.📡 Detection & Monitoring
Log Indicators:
- Unusual UDP traffic to port 8211
- Multiple connection attempts to PAPI service
- System crashes or restarts of Aruba services
Network Indicators:
- Unusual UDP packets to port 8211 from unexpected sources
- Traffic patterns suggesting buffer overflow attempts
SIEM Query:
source_port=* AND destination_port=8211 AND protocol=UDP AND (packet_size>normal OR unusual_pattern)