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// Other services

Port 2437: UniControl

Port 2437 is assigned by IANA to unicontrol (UniControl).

2437

How unicontrol works

Other services
client:2437unicontrolresponse client:2437unicontrolresponse

The client sends a request to port 2437 and the unicontrol service answers.

Transport
TCP · UDP
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 2437 dangerous?

We have no specific security note for port 2437. 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 2437

ServicePortTransportDescriptionReferenceUpdated
unicontrol 2437 TCP, UDP UniControl - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2437, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2437'      # process listening on 2437
sudo lsof -nP -i :2437

macOS

sudo lsof -nP -i :2437

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2437 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2437
netstat -ano | findstr :2437

From another machine

nmap -p 2437 -sV <host>
sudo nmap -sU -p 2437 <host>
nc -zv <host> 2437

Block it in the firewall

sudo ufw deny 2437/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2437" -Direction Inbound -LocalPort 2437 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2437 used for?

Port 2437 is assigned by IANA to unicontrol (UniControl).

Is port 2437 TCP or UDP?

Port 2437 is registered for TCP and UDP.

Is it safe to open port 2437?

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 2437 is open?

On Linux run "ss -ltnup 'sport = :2437'", on macOS "lsof -nP -i :2437", and on Windows "netstat -ano | findstr :2437" to see the local process. From another machine, "nmap -p 2437 <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

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