CVE-2024-11155
📋 TL;DR
A use-after-free vulnerability in Rockwell Automation Arena allows arbitrary code execution when a user opens a malicious DOE file. This affects legitimate users of Arena simulation software who could inadvertently execute attacker-crafted files. The vulnerability requires user interaction to trigger.
💻 Affected Systems
- Rockwell Automation Arena
📦 What is this software?
Arena by Rockwellautomation
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining the same privileges as the Arena user, potentially leading to lateral movement, data theft, or disruption of industrial operations.
Likely Case
Local privilege escalation or system compromise on the workstation running Arena, potentially affecting connected industrial systems.
If Mitigated
Limited impact if proper file validation and user awareness prevent malicious DOE file execution.
🎯 Exploit Status
Exploitation requires social engineering to get user to open malicious file; use-after-free vulnerabilities typically require precise memory manipulation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 16.20.01
Vendor Advisory: https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1713.html
Restart Required: Yes
Instructions:
1. Download Arena version 16.20.01 or later from Rockwell Automation
2. Close all Arena instances
3. Run the installer with administrative privileges
4. Follow installation prompts
5. Restart system after installation completes
🔧 Temporary Workarounds
Restrict DOE file execution
windowsConfigure Windows to prevent execution of untrusted DOE files or restrict Arena from opening files from untrusted sources.
User awareness training
allTrain users to only open DOE files from trusted sources and verify file integrity before opening.
🧯 If You Can't Patch
- Implement application whitelisting to only allow execution of signed/verified Arena executables
- Use network segmentation to isolate Arena workstations from critical industrial control systems
🔍 How to Verify
Check if Vulnerable:
Check Arena version via Help > About in the application interface or examine installed programs in Windows Control Panel.Check Version:
Not applicable - check via GUI or Windows Programs and FeaturesVerify Fix Applied:
Confirm Arena version is 16.20.01 or later in Help > About menu.📡 Detection & Monitoring
Log Indicators:
- Unexpected Arena crashes or memory access violations in Windows Event Logs
- Execution of unexpected processes from Arena context
Network Indicators:
- Unusual outbound connections from Arena process to external IPs
SIEM Query:
Process creation where parent process contains 'arena.exe' AND (command line contains suspicious parameters OR destination IP is external)