CVE-2020-19419
📋 TL;DR
This vulnerability allows remote attackers to access sensitive device information from the Emerson Smart Wireless Gateway 1420 administrator console without authentication. It affects organizations using this industrial wireless gateway for process automation and monitoring. Attackers can exploit missing authentication controls to gather configuration data and potentially prepare for further attacks.
💻 Affected Systems
- Emerson Smart Wireless Gateway 1420
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain complete device configuration, network topology, and operational data, enabling reconnaissance for industrial control system attacks, service disruption, or data exfiltration.
Likely Case
Unauthorized access to device information revealing network architecture, connected devices, and configuration details that could facilitate targeted attacks.
If Mitigated
No unauthorized access to sensitive information; authentication properly enforced on all administrative interfaces.
🎯 Exploit Status
The exploit requires only HTTP requests to the administrator console without authentication, making it trivial to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not provided in references
Restart Required: No
Instructions:
Check Emerson's official security advisories for patch availability. If available, follow vendor instructions for updating the gateway firmware.
🔧 Temporary Workarounds
Network Segmentation
allIsolate the Emerson Smart Wireless Gateway 1420 from untrusted networks and restrict access to authorized management systems only.
Access Control Lists
allImplement firewall rules to restrict access to the gateway's administrative interface to specific trusted IP addresses.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the gateway from untrusted networks
- Monitor network traffic to the gateway's administrative interface for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Attempt to access the administrator console without authentication. If device information is accessible, the system is vulnerable.Check Version:
Check the device web interface or console for firmware version information (typically shows 4.6.59 if vulnerable)Verify Fix Applied:
Verify that authentication is required to access the administrator console and that unauthenticated requests return appropriate access denied responses.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access attempts to administrative endpoints
- Successful access to /admin or similar paths without authentication logs
Network Indicators:
- HTTP requests to administrative endpoints without authentication headers
- Unusual traffic patterns to the gateway's management interface
SIEM Query:
source="emerson_gateway" AND (url_path="/admin" OR url_path CONTAINS "console") AND auth_status="none"🔗 References
- http://packetstormsecurity.com/files/161701/Emerson-Smart-Wireless-Gateway-1420-4.6.59-Missing-Authentication.html
- https://cwe.mitre.org/data/definitions/306.html
- http://packetstormsecurity.com/files/161701/Emerson-Smart-Wireless-Gateway-1420-4.6.59-Missing-Authentication.html
- https://cwe.mitre.org/data/definitions/306.html
