CVE-2023-1135
📋 TL;DR
This vulnerability in Delta Electronics InfraSuite Device Master allows attackers to set incorrect directory permissions, potentially leading to local privilege escalation. Systems running InfraSuite Device Master versions before 1.0.5 are affected, primarily in industrial control environments.
💻 Affected Systems
- Delta Electronics InfraSuite Device Master
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains full system control through privilege escalation, potentially compromising the entire industrial control system.
Likely Case
Local attacker elevates privileges to execute arbitrary code, modify system configurations, or access sensitive data.
If Mitigated
Limited impact with proper access controls, network segmentation, and monitoring in place.
🎯 Exploit Status
Requires local access to the system; directory permission manipulation is typically straightforward for attackers with initial access.
🛠️ 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. 3. Install the update following vendor instructions. 4. Restart the system. 5. Verify proper operation.
🔧 Temporary Workarounds
Restrict Local Access
allLimit local access to InfraSuite Device Master systems to authorized personnel only
Harden Directory Permissions
windowsManually review and secure directory permissions on the system
icacls "C:\Program Files\Delta Electronics\InfraSuite\" /inheritance:r /grant:r "Administrators:(OI)(CI)F" /grant:r "SYSTEM:(OI)(CI)F"
icacls "C:\ProgramData\Delta Electronics\InfraSuite\" /inheritance:r /grant:r "Administrators:(OI)(CI)F" /grant:r "SYSTEM:(OI)(CI)F"
🧯 If You Can't Patch
- Implement strict access controls and monitor for unauthorized local access attempts
- Segment the network to isolate InfraSuite Device Master systems from general network traffic
🔍 How to Verify
Check if Vulnerable:
Check the installed version of InfraSuite Device Master in Control Panel > Programs and Features or via the application interfaceCheck Version:
wmic product where "name like 'InfraSuite Device Master%'" get versionVerify Fix Applied:
Verify version is 1.0.5 or later and test directory permissions cannot be modified by non-administrative users📡 Detection & Monitoring
Log Indicators:
- Failed or successful privilege escalation attempts
- Unauthorized directory permission changes
- Unusual local account activity
Network Indicators:
- Unusual local network traffic from InfraSuite systems
SIEM Query:
EventID=4672 OR EventID=4688 OR EventID=4704 AND (ProcessName contains 'InfraSuite' OR TargetObject contains 'Delta Electronics')