CVE-2019-18327
📋 TL;DR
This vulnerability in SPPA-T3000 MS3000 Migration Server allows attackers with network access to send specially crafted packets to port 5010/tcp, potentially causing denial-of-service or remote code execution. It affects all versions of the MS3000 Migration Server. Industrial control system operators using this Siemens product are at risk.
💻 Affected Systems
- SPPA-T3000 MS3000 Migration Server
📦 What is this software?
⚠️ 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
Remote code execution leading to complete system compromise, disruption of industrial processes, and potential safety incidents.
Likely Case
Denial-of-service condition disrupting migration server functionality and industrial operations.
If Mitigated
Limited impact if proper network segmentation and access controls prevent attackers from reaching the vulnerable service.
🎯 Exploit Status
No authentication required; attacker needs network access to vulnerable service. No public exploitation known at advisory publication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references; consult Siemens advisory for specific patch versions.
Vendor Advisory: https://cert-portal.siemens.com/productcert/pdf/ssa-451445.pdf
Restart Required: Yes
Instructions:
1. Review Siemens advisory SSA-451445. 2. Apply vendor-provided patches/updates. 3. Restart affected services/systems. 4. Verify patch application.
🔧 Temporary Workarounds
Network Segmentation
linuxRestrict network access to MS3000 Server port 5010/tcp to only trusted systems.
firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="TRUSTED_IP" port protocol="tcp" port="5010" accept'
firewall-cmd --reload
Firewall Block
windowsBlock external access to port 5010/tcp at network perimeter.
netsh advfirewall firewall add rule name="Block MS3000 Port" dir=in action=block protocol=TCP localport=5010
🧯 If You Can't Patch
- Implement strict network segmentation to isolate MS3000 Server from untrusted networks.
- Deploy intrusion detection/prevention systems to monitor for exploitation attempts on port 5010.
🔍 How to Verify
Check if Vulnerable:
Check if SPPA-T3000 MS3000 Migration Server is running and accessible on port 5010/tcp.Check Version:
Consult Siemens documentation for version checking commands specific to SPPA-T3000 systems.Verify Fix Applied:
Verify patch installation through Siemens management tools and test that crafted packets no longer cause service disruption.📡 Detection & Monitoring
Log Indicators:
- Unusual connection attempts to port 5010
- MS3000 service crashes or restarts
- Abnormal packet patterns to migration server
Network Indicators:
- Crafted packets to port 5010/tcp
- Traffic patterns matching known exploit signatures
SIEM Query:
source_port=5010 AND (packet_size>threshold OR protocol_anomaly=true)