CVE-2021-41001
📋 TL;DR
An authenticated remote code execution vulnerability in Aruba AOS-CX Network Analytics Engine allows attackers with valid credentials to execute arbitrary commands on affected switches. This affects multiple Aruba CX switch series running vulnerable AOS-CX versions. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- Aruba CX 6200F Switch Series
- Aruba 6300 Switch Series
- Aruba 6400 Switch Series
- Aruba 8320 Switch Series
- Aruba 8325 Switch Series
- Aruba 8400 Switch Series
- Aruba CX 8360 Switch Series
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete switch takeover allowing attacker to reconfigure network, intercept traffic, pivot to other systems, or deploy persistent backdoors.
Likely Case
Unauthorized configuration changes, network disruption, credential theft, and lateral movement within the network.
If Mitigated
Limited impact if proper network segmentation, authentication controls, and monitoring are in place.
🎯 Exploit Status
Requires authenticated access but command injection (CWE-77) vulnerabilities are often straightforward to exploit once authentication is bypassed or credentials are obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: AOS-CX 10.07.xxxx: 10.07.0051+, AOS-CX 10.08.xxxx: 10.08.1031+, AOS-CX 10.09.xxxx: 10.09.0003+
Vendor Advisory: https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txt
Restart Required: Yes
Instructions:
1. Download appropriate firmware from Aruba support portal. 2. Backup switch configuration. 3. Upload firmware to switch. 4. Install firmware using 'copy flash:filename flash:primary' and 'boot system flash:primary' commands. 5. Reload switch to apply update.
🔧 Temporary Workarounds
Restrict Management Access
allLimit access to switch management interfaces to trusted IP addresses only
configure terminal
management-access-list ipv4
permit ip <trusted-network> <wildcard>
deny ip any any
exit
apply management-access-list
Disable Unused Services
allDisable Network Analytics Engine if not required
configure terminal
no analytics
write memory
🧯 If You Can't Patch
- Implement strict network segmentation to isolate switches from untrusted networks
- Enforce strong authentication policies and monitor for suspicious login attempts
🔍 How to Verify
Check if Vulnerable:
Check AOS-CX version with 'show version' command and compare against affected versionsCheck Version:
show version | include AOS-CXVerify Fix Applied:
Verify version is patched with 'show version' and ensure it's above the vulnerable thresholds📡 Detection & Monitoring
Log Indicators:
- Unusual authentication attempts to switch management
- Unexpected configuration changes
- Suspicious commands in audit logs
- NAE-related error messages
Network Indicators:
- Unusual outbound connections from switches
- Unexpected management protocol traffic
- Anomalous network configuration changes
SIEM Query:
source="aruba-switch" AND (event_type="authentication" AND result="failure") OR (event_type="configuration_change" AND user!="authorized_user")