CyberHunter
LinkedIn profile - Bastien Cordier Email: contact@bastiencordier.pro
// Other services

Port 4170: SMPTE Content Synchonization Protocol

Port 4170 is assigned by IANA to d-cinema-csp (SMPTE Content Synchonization Protocol).

4170

How d-cinema-csp works

Other services
client:4170d-cinema-cspresponse client:4170d-cinema-cspresponse

The client sends a request to port 4170 and the d-cinema-csp service answers.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 4170 dangerous?

We have no specific security note for port 4170. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 4170

ServicePortTransportDescriptionReferenceUpdated
d-cinema-csp 4170 TCP SMPTE Content Synchonization Protocol - 2008-09-04
-4170-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 4170, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4170'      # process listening on 4170
sudo lsof -nP -i :4170

macOS

sudo lsof -nP -i :4170

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4170 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4170
netstat -ano | findstr :4170

From another machine

nmap -p 4170 -sV <host>
nc -zv <host> 4170

Block it in the firewall

sudo ufw deny 4170/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4170" -Direction Inbound -LocalPort 4170 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4170 used for?

Port 4170 is assigned by IANA to d-cinema-csp (SMPTE Content Synchonization Protocol).

Is port 4170 TCP or UDP?

Port 4170 is registered for TCP.

Is it safe to open port 4170?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 4170 is open?

On Linux run "ss -ltnup 'sport = :4170'", on macOS "lsof -nP -i :4170", and on Windows "netstat -ano | findstr :4170" to see the local process. From another machine, "nmap -p 4170 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

Latest vulnerability news

All news