CVE-2024-54092
📋 TL;DR
This vulnerability allows unauthenticated remote attackers to bypass authentication on specific API endpoints when identity federation is configured, enabling them to impersonate legitimate users. It affects multiple Siemens Industrial Edge Device Kit versions and related industrial devices. Successful exploitation requires that identity federation has been used and the attacker knows a legitimate user's identity.
💻 Affected Systems
- Industrial Edge Device Kit - arm64
- Industrial Edge Device Kit - x86-64
- Industrial Edge Own Device (IEOD)
- Industrial Edge Virtual Device
- SCALANCE LPE9413 (6GK5998-3GS01-2AC2)
- SIMATIC IPC BX-39A Industrial Edge Device
- SIMATIC IPC BX-59A Industrial Edge Device
- SIMATIC IPC127E Industrial Edge Device
- SIMATIC IPC227E Industrial Edge Device
- SIMATIC IPC427E Industrial Edge Device
- SIMATIC IPC847E Industrial Edge Device
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, access sensitive industrial data, manipulate industrial processes, and pivot to other network segments.
Likely Case
Unauthorized access to industrial control systems, data exfiltration, manipulation of industrial processes, and potential disruption of operations.
If Mitigated
Limited impact if proper network segmentation, monitoring, and access controls are in place to detect and contain unauthorized access attempts.
🎯 Exploit Status
Exploitation requires knowledge of legitimate user identities and that identity federation is configured. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V1.20.2-1, V1.21.1-1, V1.21.1-1-a, V2.1, V3.0 depending on product
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-634640.html
Restart Required: Yes
Instructions:
1. Identify affected devices and versions. 2. Download appropriate patches from Siemens Industrial Edge Hub. 3. Apply patches following Siemens documentation. 4. Restart devices as required. 5. Verify patch installation.
🔧 Temporary Workarounds
Disable Identity Federation
allTemporarily disable identity federation configuration to prevent exploitation
Consult Siemens documentation for disabling identity federation on affected devices
Network Segmentation
allIsolate affected devices from untrusted networks and implement strict firewall rules
🧯 If You Can't Patch
- Implement strict network access controls to limit API endpoint exposure
- Enable comprehensive logging and monitoring for authentication bypass attempts
- Disable identity federation if not required
- Implement additional authentication layers for critical functions
🔍 How to Verify
Check if Vulnerable:
Check device version against affected versions list and verify if identity federation is configuredCheck Version:
Consult Siemens documentation for version checking commands specific to each device typeVerify Fix Applied:
Verify installed version is patched version or higher and test authentication enforcement on API endpoints📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- Unusual API endpoint access patterns
- Authentication bypass attempts in application logs
Network Indicators:
- Unusual API traffic to authentication endpoints
- Requests bypassing normal authentication flow
SIEM Query:
Example: 'source="industrial-edge" AND (event_type="auth_bypass" OR (auth_result="success" AND auth_method="none"))'