CVE-2025-12114
📋 TL;DR
This vulnerability in BLU-IC2 and BLU-IC4 devices allows information leakage through an enabled serial console, potentially exposing system details that could aid attackers in discovering additional vulnerabilities. It affects all versions up to 1.19.5 of these products. The risk is primarily to organizations using these specific industrial control devices.
💻 Affected Systems
- BLU-IC2
- BLU-IC4
📦 What is this software?
Blu Ic2 Firmware by Azure Access
Blu Ic4 Firmware by Azure Access
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain detailed system information that enables them to discover and exploit additional vulnerabilities, potentially leading to full system compromise or disruption of industrial operations.
Likely Case
Information disclosure that reveals system architecture, software versions, or configuration details that could be used for targeted attacks.
If Mitigated
Limited information exposure with no direct system access or control.
🎯 Exploit Status
Requires physical or network access to serial console interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.19.5
Vendor Advisory: https://azure-access.com/security-advisories
Restart Required: No
Instructions:
1. Check current version using device management interface. 2. If version is 1.19.5 or earlier, upgrade to latest version. 3. Verify serial console is disabled or properly secured.
🔧 Temporary Workarounds
Disable Serial Console
allDisable the serial console interface to prevent information leakage.
Use device configuration interface to disable serial console access
Restrict Physical Access
allImplement physical security controls to prevent unauthorized access to serial ports.
Implement physical security measures and access controls
🧯 If You Can't Patch
- Implement strict physical security controls around devices
- Monitor serial console access attempts and log all access
🔍 How to Verify
Check if Vulnerable:
Check device version via management interface - if version is 1.19.5 or earlier, device is vulnerable.Check Version:
Use device-specific management commands to check firmware versionVerify Fix Applied:
Verify device version is greater than 1.19.5 and serial console is disabled or properly secured.📡 Detection & Monitoring
Log Indicators:
- Unauthorized serial console access attempts
- Unexpected serial port activity
Network Indicators:
- Serial-over-network connection attempts
- Unexpected traffic to serial port interfaces
SIEM Query:
Search for serial console access events or version information disclosure in logs