CVE-2023-34672
📋 TL;DR
CVE-2023-34672 is an improper access control vulnerability in Elenos ETG150 FM transmitters running version 3.12 that allows attackers with admin profile access to add high-privilege users. This could lead to unauthorized administrative control over the transmitter. Organizations using affected Elenos ETG150 transmitters with version 3.12 are vulnerable.
💻 Affected Systems
- Elenos ETG150 FM transmitter
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the FM transmitter allowing attackers to modify broadcast content, disrupt operations, or use the device as a foothold into broadcast networks.
Likely Case
Unauthorized administrative access leading to configuration changes, service disruption, or data exfiltration from the transmitter system.
If Mitigated
Limited impact with proper network segmentation and access controls preventing external exploitation.
🎯 Exploit Status
Exploitation requires admin access but the vulnerability allows privilege escalation from that position. Public PoC documentation exists.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://elenos.com
Restart Required: No
Instructions:
Check Elenos website for security updates. If patch available, follow vendor instructions for updating ETG150 firmware.
🔧 Temporary Workarounds
Network Segmentation
allIsolate ETG150 transmitters from public Internet and restrict access to management interfaces.
Access Control Hardening
allImplement strict access controls, multi-factor authentication, and monitor admin account activities.
🧯 If You Can't Patch
- Implement network segmentation to isolate transmitters from untrusted networks
- Monitor for suspicious admin account creation or privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface or console. If version is 3.12, device is vulnerable.Check Version:
Check via device web interface at System > About or similar menuVerify Fix Applied:
Verify firmware version has been updated beyond 3.12 per vendor guidance.📡 Detection & Monitoring
Log Indicators:
- Unexpected user account creation
- Admin privilege changes
- Failed authentication attempts followed by successful admin actions
Network Indicators:
- Unauthorized access to admin interfaces
- Traffic to/from transmitter management ports from unexpected sources
SIEM Query:
source="elenos-transmitter" AND (event_type="user_created" OR event_type="privilege_change")