CVE-2025-12104

9.8 CRITICAL

📋 TL;DR

This vulnerability involves outdated UI dependencies in BLU-IC2 and BLU-IC4 devices that could allow attackers to execute arbitrary code or compromise system integrity. It affects all versions up to 1.19.5 of these products. The high CVSS score indicates critical severity requiring immediate attention.

💻 Affected Systems

Products:
  • BLU-IC2
  • BLU-IC4
Versions: through 1.19.5
Operating Systems: Embedded systems running BLU-IC firmware
Default Config Vulnerable: ⚠️ Yes
Notes: All installations running affected versions are vulnerable regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise leading to data theft, ransomware deployment, or use as a foothold for lateral movement within the network.

🟠

Likely Case

Unauthenticated remote code execution allowing attackers to gain control of affected devices and potentially pivot to other systems.

🟢

If Mitigated

Limited impact through network segmentation and strict access controls, though the vulnerability remains present.

🌐 Internet-Facing: HIGH - Devices exposed to the internet are immediately vulnerable to widespread exploitation attempts.
🏢 Internal Only: HIGH - Even internally, vulnerable devices can be exploited by attackers who gain initial access to the network.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

CWE-1104 (Use of Unmaintained Third Party Components) suggests exploitation is straightforward once the vulnerable dependency is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 1.19.5

Vendor Advisory: https://azure-access.com/security-advisories

Restart Required: Yes

Instructions:

1. Check current version using device management interface. 2. Download latest firmware from vendor portal. 3. Backup configuration. 4. Apply firmware update. 5. Reboot device. 6. Verify update successful.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate affected devices in separate VLANs with strict firewall rules limiting inbound/outbound traffic.

Access Control Restrictions

all

Implement strict network access controls to limit which systems can communicate with vulnerable devices.

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate vulnerable devices from critical systems
  • Deploy intrusion detection systems to monitor for exploitation attempts and anomalous behavior

🔍 How to Verify

Check if Vulnerable:

Check device firmware version via web interface or CLI. If version is 1.19.5 or earlier, device is vulnerable.

Check Version:

Check via device web interface at System > About or use vendor-specific CLI command if available.

Verify Fix Applied:

Verify firmware version is greater than 1.19.5 and check that all UI components load without errors.

📡 Detection & Monitoring

Log Indicators:

  • Unusual HTTP requests to UI endpoints
  • Unexpected process execution
  • Failed authentication attempts followed by successful access

Network Indicators:

  • Unusual outbound connections from affected devices
  • Traffic patterns suggesting data exfiltration
  • Anomalous HTTP requests to device management interfaces

SIEM Query:

source="blu-ic*" AND (http_status=200 AND http_method=POST AND uri CONTAINS "/ui/") OR (process_name="unusual_process")

🔗 References

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