CVE-2022-23660
📋 TL;DR
This CVE describes a remote authentication bypass vulnerability in Aruba ClearPass Policy Manager that allows attackers to bypass authentication mechanisms without valid credentials. Affected organizations are those running ClearPass Policy Manager versions 6.10.4 and below, 6.9.9 and below, 6.8.9-HF2 and below, or any 6.7.x version.
💻 Affected Systems
- Aruba ClearPass Policy Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the ClearPass Policy Manager system, allowing attackers to gain administrative access, modify network policies, steal sensitive authentication data, and potentially pivot to other network resources.
Likely Case
Unauthorized access to the ClearPass management interface, enabling attackers to view or modify network access policies, user credentials, and device configurations.
If Mitigated
Limited impact if system is isolated behind firewalls with strict network segmentation and access controls, though authentication bypass still presents significant risk.
🎯 Exploit Status
Authentication bypass vulnerabilities typically have low exploitation complexity once the method is known.
🛠️ 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 service. 5. Verify successful update and functionality.
🔧 Temporary Workarounds
Network Isolation
allRestrict network access to ClearPass Policy Manager to only trusted management networks
Access Control Lists
allImplement strict firewall rules to limit source IP addresses that can reach the ClearPass management interface
🧯 If You Can't Patch
- Isolate the ClearPass system on a dedicated management VLAN with strict access controls
- Implement multi-factor authentication for all administrative access and monitor for unusual authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check ClearPass version via web interface: Admin > Support > System Information, or via CLI: show versionCheck Version:
show version (CLI) or check Admin > Support > System Information (web)Verify Fix Applied:
Verify version is 6.10.5+, 6.9.10+, 6.8.9-HF3+, or later, and test authentication mechanisms📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access from same source
- Administrative actions from unexpected user accounts or IP addresses
- Authentication logs showing bypass patterns
Network Indicators:
- Unusual traffic patterns to ClearPass management interface
- Authentication requests from unexpected network segments
SIEM Query:
source="clearpass" AND (event_type="authentication" OR event_type="admin_access") AND result="success" AND user="unknown" OR source_ip NOT IN [trusted_management_ips]