← Port Encyclopedia
443
HTTPS
TCP
Web
Critical Risk
HTTP over TLS/SSL — encrypted web traffic, SSL/TLS vulnerabilities, certificate issues
🔍 How to Scan Port 443
nmap -sV -p 443 target
nmap -sV -sC --script=banner -p 443 target
nc -zv target 443
🛡️ Security Considerations
- Scan port 443 with
nmap -sVto identify the exact service and version - If HTTPS is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit httpsto find known exploits - Monitor traffic on port 443 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation