CVE-2023-22314
📋 TL;DR
A use-after-free vulnerability in Omron CX-Programmer versions 9.79 and earlier allows attackers to cause information disclosure or arbitrary code execution by tricking users into opening malicious CXP files. This affects all users of vulnerable CX-Programmer software for PLC programming. The vulnerability is distinct from other recent CX-Programmer CVEs.
💻 Affected Systems
- Omron CX-Programmer
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining code execution at the user's privilege level, potentially leading to lateral movement, data theft, or industrial control system manipulation.
Likely Case
Local privilege escalation or system compromise when users open malicious CXP files, potentially affecting PLC programming environments and connected industrial systems.
If Mitigated
Limited impact with proper user training and file validation controls preventing malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction to open malicious CXP file. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 9.80 or later
Vendor Advisory: https://www.omron.com/global/en/
Restart Required: Yes
Instructions:
1. Download CX-Programmer version 9.80 or later from Omron's official website. 2. Uninstall the vulnerable version. 3. Install the updated version. 4. Restart the system.
🔧 Temporary Workarounds
Restrict CXP file handling
windowsConfigure system to open CXP files only with updated software or in sandboxed environments
User awareness training
allTrain users to only open CXP files from trusted sources
🧯 If You Can't Patch
- Implement application whitelisting to prevent execution of unauthorized software
- Use sandboxing or virtualization for CX-Programmer execution
🔍 How to Verify
Check if Vulnerable:
Check CX-Programmer version in Help > About. If version is 9.79 or earlier, system is vulnerable.Check Version:
Not applicable - check via application GUI Help > AboutVerify Fix Applied:
Verify installed version is 9.80 or later in Help > About menu.📡 Detection & Monitoring
Log Indicators:
- Unexpected process crashes of CX-Programmer
- Unusual file access patterns for CXP files
Network Indicators:
- No direct network indicators - exploitation is file-based
SIEM Query:
Process creation where parent process is CX-Programmer AND command line contains suspicious parameters