CVE-2018-25108
📋 TL;DR
CVE-2018-25108 allows unauthenticated remote attackers to cause a denial-of-service (DoS) in affected controllers by exhausting system resources. This vulnerability affects systems running vulnerable versions of the controller software, potentially disrupting critical operations.
💻 Affected Systems
- Specific controller software not explicitly named in reference
⚠️ 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 controller unavailability leading to service disruption and operational downtime
Likely Case
Temporary service degradation or controller restart required
If Mitigated
Minimal impact with proper network segmentation and resource monitoring
🎯 Exploit Status
The vulnerability requires no authentication and exploits resource consumption, making exploitation relatively straightforward
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patched version not specified in reference
Vendor Advisory: https://cert.vde.com/en/advisories/VDE-2018-013
Restart Required: No
Instructions:
1. Consult the VDE advisory for specific vendor patches. 2. Apply the latest security updates from your controller vendor. 3. Verify the patch resolves the resource consumption issue.
🔧 Temporary Workarounds
Network Segmentation
allIsolate controller systems from untrusted networks to prevent remote exploitation
Resource Monitoring
allImplement monitoring for abnormal resource consumption patterns
🧯 If You Can't Patch
- Implement strict network access controls to limit controller exposure
- Deploy rate limiting or connection throttling mechanisms
🔍 How to Verify
Check if Vulnerable:
Check controller version against vendor's vulnerability list and monitor for abnormal resource usage patternsCheck Version:
Vendor-specific command (consult controller documentation)Verify Fix Applied:
Test resource consumption under load after patching and verify no DoS occurs📡 Detection & Monitoring
Log Indicators:
- Unusual connection spikes
- Resource exhaustion warnings
- Controller restart events
Network Indicators:
- High volume of connections to controller ports
- Traffic patterns suggesting resource exhaustion attempts
SIEM Query:
source="controller" AND (event_type="resource_exhaustion" OR event_type="connection_flood")