CVE-2023-29462

7.8 HIGH

📋 TL;DR

This is a heap buffer overflow vulnerability in Rockwell Automation's Arena Simulation software that allows arbitrary code execution. An attacker could exploit this to run malicious code on affected systems, potentially compromising the entire system. Organizations using vulnerable versions of Arena Simulation software are affected.

💻 Affected Systems

Products:
  • Rockwell Automation Arena Simulation Software
Versions: All versions prior to 16.20.01
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: This affects Arena Simulation software installations on Windows systems. The vulnerability exists in the software itself regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attacker to execute arbitrary code, steal sensitive data, install persistent malware, or disrupt industrial operations.

🟠

Likely Case

Local privilege escalation leading to unauthorized access to simulation data and system resources.

🟢

If Mitigated

Limited impact if proper network segmentation and access controls prevent exploitation attempts.

🌐 Internet-Facing: LOW (Typically industrial simulation software is not internet-facing)
🏢 Internal Only: HIGH (Internal attackers or compromised internal systems could exploit this vulnerability)

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires local access or ability to execute code on the target system. No public exploit code has been reported.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 16.20.01 and later

Vendor Advisory: https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1139391

Restart Required: Yes

Instructions:

1. Download Arena Simulation version 16.20.01 or later from Rockwell Automation. 2. Backup existing Arena projects and configurations. 3. Run the installer to upgrade to the patched version. 4. Restart the system after installation completes.

🔧 Temporary Workarounds

Restrict User Privileges

windows

Limit user accounts to only necessary privileges to reduce impact if exploited

Network Segmentation

all

Isolate Arena Simulation systems from critical networks and other sensitive systems

🧯 If You Can't Patch

  • Implement strict access controls and limit Arena software usage to trusted personnel only
  • Monitor systems for unusual activity and implement application whitelisting

🔍 How to Verify

Check if Vulnerable:

Check Arena Simulation version via Help > About in the application or check installed programs in Windows Control Panel

Check Version:

Not applicable - check via application interface or Windows Programs and Features

Verify Fix Applied:

Verify installed version is 16.20.01 or later and check Rockwell Automation advisory for confirmation

📡 Detection & Monitoring

Log Indicators:

  • Unusual process creation from Arena executable
  • Memory access violations in Windows Event Logs
  • Unexpected network connections from Arena process

Network Indicators:

  • Unexpected outbound connections from Arena systems
  • Anomalous traffic patterns from simulation workstations

SIEM Query:

Process Creation where Image contains 'arena' AND (CommandLine contains unusual parameters OR ParentProcess not in expected_parents)

🔗 References

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