CVE-2025-52547
📋 TL;DR
E3 Site Supervisor Control firmware versions below 2.31F01 contain an API endpoint with insufficient input validation, allowing attackers to send crafted requests that crash application services. This affects industrial control systems using vulnerable E3 MGW gateways, potentially disrupting site operations.
💻 Affected Systems
- E3 Site Supervisor Control MGW
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Continuous denial-of-service attacks could render critical industrial control systems unavailable, disrupting facility operations and safety monitoring capabilities.
Likely Case
Attackers cause service interruptions through repeated crashes, requiring manual intervention to restore functionality.
If Mitigated
With proper network segmentation and access controls, only authorized systems can reach the vulnerable API, limiting attack surface.
🎯 Exploit Status
The vulnerability requires network access to the API endpoint but no authentication, making exploitation straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.31F01
Vendor Advisory: https://www.armis.com/research/frostbyte10/
Restart Required: Yes
Instructions:
1. Download firmware version 2.31F01 from vendor portal. 2. Backup current configuration. 3. Upload and apply firmware update via management interface. 4. Reboot device to complete installation.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to the MGW API endpoints using firewall rules
Rate Limiting
allImplement rate limiting on API calls to prevent continuous exploitation attempts
🧯 If You Can't Patch
- Isolate vulnerable devices in separate network segments with strict access controls
- Implement monitoring for unusual API call patterns and service restart events
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface or SSH: System > About > Firmware VersionCheck Version:
ssh admin@device_ip 'show version' or check web interface System > AboutVerify Fix Applied:
Confirm firmware version shows 2.31F01 or higher after update📡 Detection & Monitoring
Log Indicators:
- Repeated service crash/restart events
- Unusual API call patterns to vulnerable endpoints
- High frequency of malformed requests
Network Indicators:
- Unusual traffic patterns to MGW API endpoints
- Repeated connection attempts to service ports
SIEM Query:
source="e3-mgw" AND (event_type="service_crash" OR api_calls>threshold)