CVE-2022-23662
📋 TL;DR
This CVE describes an authenticated remote command injection vulnerability in Aruba ClearPass Policy Manager. An attacker 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 attacker to execute arbitrary commands with system privileges, steal sensitive data, deploy ransomware, or pivot to other network resources.
Likely Case
Attacker gains administrative control of ClearPass Policy Manager, potentially compromising network authentication and authorization systems, stealing credentials, and modifying network policies.
If Mitigated
Limited impact due to network segmentation, strong authentication controls, and monitoring that detects unusual administrative activity.
🎯 Exploit Status
Exploitation requires valid credentials but is straightforward once authenticated. The vulnerability is in the web interface where user input is improperly sanitized before being passed to system commands.
🛠️ 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 the patch following Aruba's upgrade documentation. 4. Restart the ClearPass Policy Manager appliance. 5. Verify the update was successful.
🔧 Temporary Workarounds
Restrict Administrative Access
allLimit access to ClearPass web interface to only trusted IP addresses and require multi-factor authentication for administrative accounts.
Network Segmentation
allPlace ClearPass Policy Manager in a secured network segment with strict firewall rules limiting inbound and outbound connections.
🧯 If You Can't Patch
- Implement strict network access controls to limit which systems can reach the ClearPass web interface
- Enforce strong authentication policies including multi-factor authentication for all administrative accounts
🔍 How to Verify
Check if Vulnerable:
Check the ClearPass Policy Manager version via the web interface (Administration > Support > About) or CLI command 'show version'Check Version:
show versionVerify Fix Applied:
Verify the version is 6.10.5 or higher, 6.9.10 or higher, 6.8.9-HF3 or higher, or not in the affected 6.7.x range📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by successful login
- Administrative actions from unexpected IP addresses or users
Network Indicators:
- Unusual outbound connections from ClearPass appliance
- Traffic patterns suggesting command and control communication
SIEM Query:
source="clearpass" AND (event_type="command_execution" OR user="admin") AND result="success" | stats count by src_ip, user