CVE-2021-37184
📋 TL;DR
An unauthenticated attacker can change any user's password in Siemens Industrial Edge Management systems, allowing impersonation of valid users. This affects all versions before V1.3 of the Industrial Edge Management platform.
💻 Affected Systems
- Siemens Industrial Edge Management
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through administrative account takeover, leading to industrial control system manipulation, data theft, or operational disruption.
Likely Case
Unauthorized access to sensitive industrial data, configuration changes, or lateral movement within the network.
If Mitigated
Limited impact if systems are isolated, monitored, and have strong authentication controls beyond the vulnerable component.
🎯 Exploit Status
The vulnerability requires no authentication and can be exploited under certain circumstances as described in the advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V1.3 or later
Vendor Advisory: https://cert-portal.siemens.com/productcert/pdf/ssa-692317.pdf
Restart Required: Yes
Instructions:
1. Download Industrial Edge Management V1.3 or later from Siemens support portal. 2. Backup current configuration. 3. Apply the update following Siemens installation guide. 4. Restart the system.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Industrial Edge Management systems from untrusted networks to prevent unauthenticated access.
Access Control Lists
allImplement strict firewall rules to limit access to the management interface to authorized IPs only.
🧯 If You Can't Patch
- Implement network segmentation to isolate affected systems from untrusted networks.
- Enable detailed logging and monitoring for unauthorized password change attempts.
🔍 How to Verify
Check if Vulnerable:
Check the Industrial Edge Management version in the system settings or via CLI command 'iem-version'.Check Version:
iem-versionVerify Fix Applied:
Confirm version is V1.3 or higher and test that unauthenticated password changes are no longer possible.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated password change requests in application logs
- Multiple failed login attempts followed by password reset
Network Indicators:
- Unusual traffic to password reset endpoints from untrusted sources
SIEM Query:
source="industrial_edge" AND (event="password_change" OR event="user_modify") AND user="unauthenticated"