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

Port 408: Prospero Resource Manager Sys. Man.

Port 408 is assigned by IANA to prm-sm (Prospero Resource Manager Sys. Man.).

408

How prm-sm works

Other services
client:408prm-smresponse client:408prm-smresponse

The client sends a request to port 408 and the prm-sm 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 408 dangerous?

We have no specific security note for port 408. 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 408

ServicePortTransportDescriptionReferenceUpdated
prm-sm 408 TCP, UDP Prospero Resource Manager Sys. Man. - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 408, and is it reachable?

Linux

sudo ss -ltnup 'sport = :408'      # process listening on 408
sudo lsof -nP -i :408

macOS

sudo lsof -nP -i :408

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 408 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 408
netstat -ano | findstr :408

From another machine

nmap -p 408 -sV <host>
sudo nmap -sU -p 408 <host>
nc -zv <host> 408

Block it in the firewall

sudo ufw deny 408/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 408" -Direction Inbound -LocalPort 408 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 408 used for?

Port 408 is assigned by IANA to prm-sm (Prospero Resource Manager Sys. Man.).

Is port 408 TCP or UDP?

Port 408 is registered for TCP and UDP.

Is it safe to open port 408?

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 408 is open?

On Linux run "ss -ltnup 'sport = :408'", on macOS "lsof -nP -i :408", and on Windows "netstat -ano | findstr :408" to see the local process. From another machine, "nmap -p 408 <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