CVE-2023-1138
📋 TL;DR
Delta Electronics InfraSuite Device Master versions before 1.0.5 have an improper access control vulnerability that allows attackers to retrieve Gateway configuration files containing plaintext credentials. This affects industrial control systems using these versions for device management. Attackers could gain unauthorized access to sensitive infrastructure.
💻 Affected Systems
- Delta Electronics InfraSuite Device Master
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain administrative credentials, gain full control of industrial devices, disrupt critical infrastructure operations, or cause physical damage.
Likely Case
Attackers steal credentials, access sensitive industrial systems, exfiltrate data, or maintain persistent access for future attacks.
If Mitigated
Limited to credential exposure without successful lateral movement if network segmentation and monitoring are in place.
🎯 Exploit Status
Vulnerability involves improper access control allowing file retrieval without authentication.
🛠️ 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 version 1.0.5 from Delta Electronics. 2. Backup current configuration. 3. Install the update following vendor instructions. 4. Restart the Device Master service. 5. Verify successful update.
🔧 Temporary Workarounds
Network Segmentation
allIsolate InfraSuite Device Master from untrusted networks and internet access.
Access Control Lists
allImplement strict firewall rules to limit access to Device Master services.
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable systems
- Monitor for unauthorized access attempts and file retrieval patterns
🔍 How to Verify
Check if Vulnerable:
Check Device Master version in application interface or installation directory. Versions below 1.0.5 are vulnerable.Check Version:
Check application interface or installation properties for version numberVerify Fix Applied:
Confirm version is 1.0.5 or higher in application interface and test that configuration files cannot be accessed without proper authentication.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to configuration files
- Unusual file retrieval patterns from Device Master
Network Indicators:
- Unexpected connections to Device Master ports
- Traffic patterns indicating configuration file transfers
SIEM Query:
source="DeviceMaster" AND (event="FileAccess" OR event="UnauthorizedAccess")