CVE-2020-18170
📋 TL;DR
This vulnerability in Abloy Key Manager's SeChangeNotifyPrivilege component allows attackers to escalate privileges by manipulating permissions. It affects Abloy Key Manager version 7.14301.0.0, potentially enabling unauthorized access to sensitive key management functions.
💻 Affected Systems
- Abloy Key Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with administrative privileges, allowing attackers to manage or steal cryptographic keys, disable security systems, or maintain persistent access.
Likely Case
Privilege escalation to gain unauthorized access to key management functions, potentially compromising physical access control systems.
If Mitigated
Limited impact if proper access controls and network segmentation are in place, restricting attacker movement.
🎯 Exploit Status
Exploitation requires initial access to the system and knowledge of privilege escalation techniques targeting SeChangeNotifyPrivilege.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
Check with Abloy for security updates or patches. Upgrade to a newer version if available.
🔧 Temporary Workarounds
Restrict SeChangeNotifyPrivilege
windowsLimit which users/groups have SeChangeNotifyPrivilege to reduce attack surface.
Use Local Security Policy or Group Policy to modify 'Bypass traverse checking' privilege assignments
Network Segmentation
allIsolate Abloy Key Manager systems from general network access.
🧯 If You Can't Patch
- Implement strict access controls and least privilege principles for all user accounts.
- Monitor system logs for unusual privilege escalation attempts or permission changes.
🔍 How to Verify
Check if Vulnerable:
Check Abloy Key Manager version. If running version 7.14301.0.0, assume vulnerable.Check Version:
Check within Abloy Key Manager application interface or installation directory for version information.Verify Fix Applied:
Verify version has been updated beyond 7.14301.0.0 or check with vendor for patch confirmation.📡 Detection & Monitoring
Log Indicators:
- Windows Security Event Logs showing privilege escalation attempts
- Unexpected changes to user permissions or privileges
Network Indicators:
- Unusual network traffic to/from key manager systems
- Authentication attempts from unexpected sources
SIEM Query:
EventID=4672 OR EventID=4673 (Windows privilege assignment/use) combined with process names containing 'abloy' or 'key manager'