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

Port 44900: M3DA is used for efficient machine-to-machine communications

Port 44900 is assigned by IANA to m3da (M3DA is used for efficient machine-to-machine communications), m3da-disc (M3DA Discovery is used for efficient machine-to-machine communications).

44900

How m3da works

Other services
client:44900m3daresponse client:44900m3daresponse

The client sends a request to port 44900 and the m3da service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 44900 dangerous?

We have no specific security note for port 44900. 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 44900

ServicePortTransportDescriptionReferenceUpdated
m3da 44900 TCP M3DA is used for efficient machine-to-machine communications - 2013-02-22
m3da-disc 44900 UDP M3DA Discovery is used for efficient machine-to-machine communications - 2013-02-22

// source: IANA service name and port number registry

03 Check it

Which program uses port 44900, and is it reachable?

Linux

sudo ss -ltnup 'sport = :44900'      # process listening on 44900
sudo lsof -nP -i :44900

macOS

sudo lsof -nP -i :44900

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 44900 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 44900
netstat -ano | findstr :44900

From another machine

nmap -p 44900 -sV <host>
sudo nmap -sU -p 44900 <host>
nc -zv <host> 44900

Block it in the firewall

sudo ufw deny 44900/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 44900" -Direction Inbound -LocalPort 44900 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 44900 used for?

Port 44900 is assigned by IANA to m3da (M3DA is used for efficient machine-to-machine communications), m3da-disc (M3DA Discovery is used for efficient machine-to-machine communications).

Is port 44900 TCP or UDP?

Port 44900 is registered for TCP and UDP.

Is it safe to open port 44900?

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 44900 is open?

On Linux run "ss -ltnup 'sport = :44900'", on macOS "lsof -nP -i :44900", and on Windows "netstat -ano | findstr :44900" to see the local process. From another machine, "nmap -p 44900 <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