CVE-2023-2024
📋 TL;DR
This vulnerability allows unauthorized users to bypass authentication in OpenBlue Enterprise Manager Data Collector under certain circumstances. It affects organizations using versions prior to 3.2.5.75 of this industrial control system software.
💻 Affected Systems
- OpenBlue Enterprise Manager Data Collector
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to access sensitive industrial control data, manipulate system operations, or pivot to other critical infrastructure systems.
Likely Case
Unauthorized access to industrial control system data, potential data exfiltration, and disruption of monitoring capabilities.
If Mitigated
Limited impact if proper network segmentation and access controls prevent unauthorized network access to vulnerable systems.
🎯 Exploit Status
CWE-287 indicates improper authentication, suggesting relatively straightforward exploitation once the specific circumstances are identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.5.75
Vendor Advisory: https://www.johnsoncontrols.com/cyber-solutions/security-advisories
Restart Required: Yes
Instructions:
1. Download version 3.2.5.75 from Johnson Controls. 2. Backup current configuration. 3. Install the update following vendor documentation. 4. Restart the Data Collector service.
🔧 Temporary Workarounds
Network Segmentation
allIsolate OpenBlue Enterprise Manager Data Collector systems from untrusted networks and internet access.
Access Control Lists
allImplement strict firewall rules limiting access to Data Collector systems to authorized IP addresses only.
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable systems
- Deploy intrusion detection systems to monitor for authentication bypass attempts
🔍 How to Verify
Check if Vulnerable:
Check the OpenBlue Enterprise Manager Data Collector version in the system administration interface or configuration files.Check Version:
Check vendor documentation for specific version check commands as they vary by deployment.Verify Fix Applied:
Verify the version number shows 3.2.5.75 or higher after patching.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- Access from unexpected IP addresses
- Authentication bypass patterns in application logs
Network Indicators:
- Unauthorized access attempts to Data Collector ports
- Traffic patterns indicating authentication bypass
SIEM Query:
source="openblue" AND (event_type="auth_failure" OR event_type="auth_bypass")