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

Port 16619: X509 Objects Management Service

Port 16619 is assigned by IANA to xoms (X509 Objects Management Service).

16619

How xoms works

Other services
client:16619xomsresponse client:16619xomsresponse

The client sends a request to port 16619 and the xoms service answers.

Transport
TCP
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 16619 dangerous?

We have no specific security note for port 16619. 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 16619

ServicePortTransportDescriptionReferenceUpdated
xoms 16619 TCP X509 Objects Management Service - 2008-09-08
-16619-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 16619, and is it reachable?

Linux

sudo ss -ltnup 'sport = :16619'      # process listening on 16619
sudo lsof -nP -i :16619

macOS

sudo lsof -nP -i :16619

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 16619 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 16619
netstat -ano | findstr :16619

From another machine

nmap -p 16619 -sV <host>
nc -zv <host> 16619

Block it in the firewall

sudo ufw deny 16619/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 16619" -Direction Inbound -LocalPort 16619 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 16619 used for?

Port 16619 is assigned by IANA to xoms (X509 Objects Management Service).

Is port 16619 TCP or UDP?

Port 16619 is registered for TCP.

Is it safe to open port 16619?

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 16619 is open?

On Linux run "ss -ltnup 'sport = :16619'", on macOS "lsof -nP -i :16619", and on Windows "netstat -ano | findstr :16619" to see the local process. From another machine, "nmap -p 16619 <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