CVE-2021-25152
📋 TL;DR
This CVE describes a remote insecure deserialization vulnerability in Aruba AirWave Management Platform that allows attackers to execute arbitrary code on affected systems. Organizations using AirWave Management Platform versions prior to 8.2.12.1 are affected. The vulnerability can be exploited remotely without authentication in certain configurations.
💻 Affected Systems
- Aruba AirWave Management Platform
📦 What is this software?
Airwave by Arubanetworks
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code, install malware, pivot to other network resources, and potentially gain persistent access to the management platform.
Likely Case
Remote code execution leading to unauthorized access to the AirWave management system, potential data exfiltration, and disruption of network management capabilities.
If Mitigated
Limited impact if network segmentation prevents external access and proper authentication controls are in place, though internal threats could still exploit the vulnerability.
🎯 Exploit Status
Insecure deserialization vulnerabilities typically require some reverse engineering to develop reliable exploits, but once weaponized, they can be easily automated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.2.12.1 and later
Vendor Advisory: https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-010.txt
Restart Required: Yes
Instructions:
1. Download the patch from Aruba support portal. 2. Backup current configuration. 3. Apply the patch following Aruba's upgrade documentation. 4. Restart the AirWave Management Platform service or reboot the appliance.
🔧 Temporary Workarounds
Network Segmentation
linuxRestrict network access to AirWave Management Platform to only trusted management networks
Use firewall rules to restrict access: iptables -A INPUT -s <trusted_network> -p tcp --dport <airwave_port> -j ACCEPT
iptables -A INPUT -p tcp --dport <airwave_port> -j DROP
Access Control
allImplement strict authentication and authorization controls for AirWave access
Configure AirWave to require strong authentication and limit administrative access
🧯 If You Can't Patch
- Isolate the AirWave Management Platform on a dedicated management VLAN with strict firewall rules
- Implement network-based intrusion detection/prevention systems to monitor for deserialization attack patterns
🔍 How to Verify
Check if Vulnerable:
Check the AirWave Management Platform version via the web interface or CLI. Versions below 8.2.12.1 are vulnerable.Check Version:
From AirWave CLI: show version or check the web interface at https://<airwave_ip>/versionVerify Fix Applied:
Verify the version is 8.2.12.1 or higher and check that the patch installation completed successfully in system logs.📡 Detection & Monitoring
Log Indicators:
- Unusual deserialization errors in application logs
- Unexpected process execution or file creation
- Authentication attempts from unusual IP addresses
Network Indicators:
- Unusual HTTP POST requests to AirWave endpoints
- Suspicious Java serialization payloads in network traffic
- Outbound connections from AirWave to unexpected destinations
SIEM Query:
source="airwave" AND (error="deserialization" OR "serialization") OR process="unexpected_executable"