CVE-2022-34150
📋 TL;DR
The MiCODUS MV720 GPS tracker web server has an authenticated insecure direct object reference vulnerability that allows authenticated users to access or manipulate data from arbitrary device IDs without proper authorization checks. This affects organizations using MiCODUS MV720 GPS trackers for fleet management or asset tracking. Attackers with valid credentials can exploit this to view or control unauthorized devices.
💻 Affected Systems
- MiCODUS MV720 GPS Tracker
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker with authenticated access could take control of all GPS trackers in the fleet, enabling location tracking, device manipulation, or disabling of security features across the entire deployment.
Likely Case
Unauthorized access to location data and device information from other vehicles/assets in the fleet, potentially leading to privacy violations, operational disruption, or reconnaissance for physical attacks.
If Mitigated
Limited to authorized device access only, with proper access controls preventing cross-device data exposure.
🎯 Exploit Status
Requires authenticated access but exploitation is straightforward once credentials are obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check with MiCODUS for specific firmware version
Vendor Advisory: https://www.cisa.gov/uscert/ics/advisories/icsa-22-200-01
Restart Required: Yes
Instructions:
1. Contact MiCODUS for updated firmware. 2. Backup current configuration. 3. Apply firmware update via web interface. 4. Restart device. 5. Verify functionality.
🔧 Temporary Workarounds
Network Segmentation
allIsolate GPS tracker management interface from untrusted networks
Access Control Restrictions
allImplement strict network access controls to limit who can reach the web interface
🧯 If You Can't Patch
- Implement strict network segmentation to isolate GPS trackers from untrusted networks
- Enforce strong authentication policies and monitor for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Test authenticated access to endpoint with different device IDs to see if unauthorized access is possibleCheck Version:
Check firmware version via web interface or device management consoleVerify Fix Applied:
After patching, attempt to access unauthorized device IDs and verify access is denied📡 Detection & Monitoring
Log Indicators:
- Multiple device ID access attempts from single user
- Access to device IDs outside normal operational range
Network Indicators:
- Unusual patterns of requests to device ID endpoints
- Access from unauthorized IP addresses
SIEM Query:
source="gps-tracker" AND (device_id NOT IN authorized_list) AND action="access"