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

Port 5783: 3PAR Management Service with SSL

Port 5783 is assigned by IANA to 3par-mgmt-ssl (3PAR Management Service with SSL).

5783

How 3par-mgmt-ssl works

Other services
client:57833par-mgmt-sslresponse client:57833par-mgmt-sslresponse

The client sends a request to port 5783 and the 3par-mgmt-ssl 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 5783 dangerous?

We have no specific security note for port 5783. 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 5783

ServicePortTransportDescriptionReferenceUpdated
3par-mgmt-ssl 5783 TCP, UDP 3PAR Management Service with SSL - 2008-03-19

// source: IANA service name and port number registry

03 Check it

Which program uses port 5783, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5783'      # process listening on 5783
sudo lsof -nP -i :5783

macOS

sudo lsof -nP -i :5783

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5783 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5783
netstat -ano | findstr :5783

From another machine

nmap -p 5783 -sV <host>
sudo nmap -sU -p 5783 <host>
nc -zv <host> 5783

Block it in the firewall

sudo ufw deny 5783/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5783" -Direction Inbound -LocalPort 5783 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5783 used for?

Port 5783 is assigned by IANA to 3par-mgmt-ssl (3PAR Management Service with SSL).

Is port 5783 TCP or UDP?

Port 5783 is registered for TCP and UDP.

Is it safe to open port 5783?

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 5783 is open?

On Linux run "ss -ltnup 'sport = :5783'", on macOS "lsof -nP -i :5783", and on Windows "netstat -ano | findstr :5783" to see the local process. From another machine, "nmap -p 5783 <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