CVE-2023-38484

8.0 HIGH

📋 TL;DR

This vulnerability allows attackers to execute arbitrary code during the early boot sequence of Aruba 9200 and 9000 Series Controllers and Gateways. Successful exploitation could lead to complete system compromise by gaining access to sensitive underlying information. Organizations using these specific Aruba networking devices are affected.

💻 Affected Systems

Products:
  • Aruba 9200 Series Controllers
  • Aruba 9000 Series Controllers
  • Aruba 9200 Series Gateways
  • Aruba 9000 Series Gateways
Versions: All versions prior to patched firmware
Operating Systems: ArubaOS
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the BIOS implementation, so all configurations of affected hardware models are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attacker to install persistent malware, steal sensitive network configuration data, and pivot to other network segments.

🟠

Likely Case

Attacker gains administrative control of the affected controller/gateway, enabling network traffic interception, configuration changes, and denial of service.

🟢

If Mitigated

Limited impact if devices are properly segmented, monitored, and have physical security preventing local access.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Exploitation requires physical or administrative access to the device during boot process. No public exploit code available as of knowledge cutoff.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory for specific patched firmware versions

Vendor Advisory: https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2023-014.txt

Restart Required: Yes

Instructions:

1. Download patched firmware from Aruba support portal. 2. Backup current configuration. 3. Upload and install new firmware via web interface or CLI. 4. Reboot device to apply BIOS update.

🔧 Temporary Workarounds

Physical Security Controls

all

Restrict physical access to devices to prevent local exploitation during boot

Network Segmentation

all

Isolate affected devices in separate network segments to limit lateral movement

🧯 If You Can't Patch

  • Implement strict physical access controls to prevent unauthorized local access
  • Monitor for unauthorized configuration changes and unexpected reboots

🔍 How to Verify

Check if Vulnerable:

Check device model and firmware version against affected list in vendor advisory

Check Version:

show version (CLI) or check System Information in web interface

Verify Fix Applied:

Verify firmware version is updated to patched version and check for successful BIOS update during boot

📡 Detection & Monitoring

Log Indicators:

  • Unexpected device reboots
  • BIOS/UEFI firmware modification logs
  • Unauthorized configuration changes

Network Indicators:

  • Unusual network traffic patterns from controller
  • Unexpected administrative connections

SIEM Query:

DeviceType="Aruba Controller" AND (EventType="Reboot" OR EventType="Firmware Update")

🔗 References

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