← Port Encyclopedia
6443
Kubernetes
TCP
Container
Critical Risk
Kubernetes API server — cluster management, RBAC bypass, secret access
🔍 How to Scan Port 6443
nmap -sV -p 6443 target
nmap -sV -sC --script=banner -p 6443 target
nc -zv target 6443
🛡️ Security Considerations
- Scan port 6443 with
nmap -sVto identify the exact service and version - If Kubernetes is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit kubernetesto find known exploits - Monitor traffic on port 6443 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation