CVE-2022-23666
📋 TL;DR
This CVE describes an authenticated remote command injection vulnerability in Aruba ClearPass Policy Manager. Attackers with valid credentials can execute arbitrary commands on affected systems, potentially gaining full control. Organizations running ClearPass Policy Manager versions 6.10.4 and below, 6.9.9 and below, 6.8.9-HF2 and below, or 6.7.x and below are affected.
💻 Affected Systems
- Aruba ClearPass Policy Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands with system privileges, steal sensitive data, deploy ransomware, or pivot to other network resources.
Likely Case
Attackers with stolen or compromised credentials gain persistent access to the ClearPass system, potentially intercepting authentication traffic or modifying network policies.
If Mitigated
With proper network segmentation and credential protection, impact is limited to the ClearPass system itself without lateral movement.
🎯 Exploit Status
Requires authentication but command injection vulnerabilities are typically easy to exploit once credentials are obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.10.5, 6.9.10, 6.8.9-HF3, or later versions
Vendor Advisory: https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-007.txt
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Aruba support portal. 2. Backup current configuration. 3. Apply patch following Aruba's upgrade documentation. 4. Restart the ClearPass appliance. 5. Verify successful upgrade and functionality.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict administrative access to ClearPass Policy Manager to trusted IP addresses only
Configure firewall rules to allow ClearPass administrative access only from specific management networks
Credential Hardening
allImplement strong password policies and multi-factor authentication for all administrative accounts
Enable MFA in ClearPass: Administration > Administrators > Edit User > Enable Multi-Factor Authentication
🧯 If You Can't Patch
- Isolate ClearPass systems in a dedicated VLAN with strict firewall rules limiting inbound/outbound traffic
- Implement network monitoring and intrusion detection specifically for ClearPass administrative interfaces
🔍 How to Verify
Check if Vulnerable:
Check ClearPass version via web interface: Administration > Support > System Information, or CLI: show versionCheck Version:
show version (CLI) or check Administration > Support > System Information (web)Verify Fix Applied:
Verify version is 6.10.5, 6.9.10, 6.8.9-HF3 or later, and test administrative functions work correctly📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by successful login
- Unexpected process creation or system modifications
Network Indicators:
- Unusual outbound connections from ClearPass appliance
- Traffic to unexpected ports or IP addresses
- Anomalous administrative interface access patterns
SIEM Query:
source="clearpass" AND (event_type="command_execution" OR process="unexpected_process") OR (auth_failure_count>5 AND auth_success=1)