CVE-2023-1136
📋 TL;DR
This vulnerability allows unauthenticated attackers to generate valid authentication tokens in Delta Electronics InfraSuite Device Master, leading to complete authentication bypass. It affects all versions prior to 1.0.5 of this industrial control system software, potentially giving attackers administrative access to critical infrastructure systems.
💻 Affected Systems
- Delta Electronics InfraSuite Device Master
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of industrial control systems, allowing attackers to manipulate critical infrastructure operations, disrupt processes, or cause physical damage.
Likely Case
Unauthorized access to device management interfaces, enabling configuration changes, data exfiltration, or deployment of malware within industrial networks.
If Mitigated
Limited impact if systems are isolated behind multiple security layers with strict network segmentation and monitoring.
🎯 Exploit Status
The vulnerability allows unauthenticated token generation, making exploitation straightforward once the method is understood.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.5
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-080-02
Restart Required: Yes
Instructions:
1. Download InfraSuite Device Master version 1.0.5 from Delta Electronics
2. Backup current configuration and data
3. Stop all Device Master services
4. Install the update following vendor instructions
5. Restart services and verify functionality
🔧 Temporary Workarounds
Network Segmentation
allIsolate InfraSuite Device Master systems from untrusted networks and internet access
Access Control Lists
allImplement strict firewall rules to limit access to Device Master interfaces
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable systems from untrusted networks
- Deploy intrusion detection systems to monitor for authentication bypass attempts
🔍 How to Verify
Check if Vulnerable:
Check the installed version of InfraSuite Device Master via the application interface or Windows Programs and FeaturesCheck Version:
Check via application GUI or Windows Control Panel > Programs and FeaturesVerify Fix Applied:
Verify version is 1.0.5 or later and test authentication mechanisms📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful login from same IP
- Authentication logs showing token generation without proper credentials
Network Indicators:
- Unusual authentication traffic patterns
- Access to administrative interfaces from unexpected sources
SIEM Query:
source="device_master" AND (event_type="auth" AND result="success" AND user="unknown")