CyberHunter
Local dataset, no network
// Other services

Port 1437: Tabula

Port 1437 is assigned by IANA to tabula (Tabula).

1437

How tabula works

Other services
client:1437tabularesponse client:1437tabularesponse

The client sends a request to port 1437 and the tabula 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 1437 dangerous?

We have no specific security note for port 1437. 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 1437

ServicePortTransportDescriptionReferenceUpdated
tabula 1437 TCP, UDP Tabula - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1437, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1437'      # process listening on 1437
sudo lsof -nP -i :1437

macOS

sudo lsof -nP -i :1437

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1437 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1437
netstat -ano | findstr :1437

From another machine

nmap -p 1437 -sV <host>
sudo nmap -sU -p 1437 <host>
nc -zv <host> 1437

Block it in the firewall

sudo ufw deny 1437/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1437" -Direction Inbound -LocalPort 1437 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1437 used for?

Port 1437 is assigned by IANA to tabula (Tabula).

Is port 1437 TCP or UDP?

Port 1437 is registered for TCP and UDP.

Is it safe to open port 1437?

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 1437 is open?

On Linux run "ss -ltnup 'sport = :1437'", on macOS "lsof -nP -i :1437", and on Windows "netstat -ano | findstr :1437" to see the local process. From another machine, "nmap -p 1437 <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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