CVE-2023-0622
📋 TL;DR
Cscape Envision RV version 4.60 has an out-of-bounds write vulnerability when parsing HMI project files. This allows attackers to execute arbitrary code with the privileges of the current process. Organizations using this specific version for industrial control systems are affected.
💻 Affected Systems
- Cscape Envision RV
📦 What is this software?
Cscape Envision Rv by Hornerautomation
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise leading to disruption of industrial processes, data theft, or physical damage to equipment.
Likely Case
Local privilege escalation or remote code execution if project files can be delivered to the system.
If Mitigated
Limited impact with proper network segmentation and file validation controls.
🎯 Exploit Status
Requires attacker to provide a malicious project file. No public exploit code known at advisory time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 4.61 or later
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-040-04
Restart Required: Yes
Instructions:
1. Download updated version from vendor. 2. Backup current configuration. 3. Install update. 4. Restart system. 5. Verify version shows 4.61 or higher.
🔧 Temporary Workarounds
Restrict project file sources
allOnly allow project files from trusted sources and implement file validation
Network segmentation
allIsolate Envision RV systems from untrusted networks
🧯 If You Can't Patch
- Implement strict access controls on who can load project files
- Monitor for unusual process behavior or file parsing errors
🔍 How to Verify
Check if Vulnerable:
Check software version in About dialog or program propertiesCheck Version:
Check via software interface or Windows Programs and FeaturesVerify Fix Applied:
Confirm version is 4.61 or higher after update📡 Detection & Monitoring
Log Indicators:
- Failed project file parsing
- Application crashes when loading files
- Unusual process creation
Network Indicators:
- Unexpected project file transfers to HMI systems
SIEM Query:
Process creation where parent process is EnvisionRV.exe AND command line contains suspicious file paths