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

Port 1588: triquest-lm

Port 1588 is assigned by IANA to triquest-lm (triquest-lm).

1588

How triquest-lm works

Other services
client:1588triquest-lmresponse client:1588triquest-lmresponse

The client sends a request to port 1588 and the triquest-lm 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 1588 dangerous?

We have no specific security note for port 1588. 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 1588

ServicePortTransportDescriptionReferenceUpdated
triquest-lm 1588 TCP, UDP triquest-lm - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1588, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1588'      # process listening on 1588
sudo lsof -nP -i :1588

macOS

sudo lsof -nP -i :1588

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1588 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1588
netstat -ano | findstr :1588

From another machine

nmap -p 1588 -sV <host>
sudo nmap -sU -p 1588 <host>
nc -zv <host> 1588

Block it in the firewall

sudo ufw deny 1588/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1588" -Direction Inbound -LocalPort 1588 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1588 used for?

Port 1588 is assigned by IANA to triquest-lm (triquest-lm).

Is port 1588 TCP or UDP?

Port 1588 is registered for TCP and UDP.

Is it safe to open port 1588?

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 1588 is open?

On Linux run "ss -ltnup 'sport = :1588'", on macOS "lsof -nP -i :1588", and on Windows "netstat -ano | findstr :1588" to see the local process. From another machine, "nmap -p 1588 <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