CyberHunter
Local dataset, no network
// Other services

Port 3360: KV Server

Port 3360 is assigned by IANA to kv-server (KV Server).

3360

How kv-server works

Other services
client:3360kv-serverresponse client:3360kv-serverresponse

The client sends a request to port 3360 and the kv-server 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 3360 dangerous?

We have no specific security note for port 3360. 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 3360

ServicePortTransportDescriptionReferenceUpdated
kv-server 3360 TCP, UDP KV Server - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3360, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3360'      # process listening on 3360
sudo lsof -nP -i :3360

macOS

sudo lsof -nP -i :3360

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3360 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3360
netstat -ano | findstr :3360

From another machine

nmap -p 3360 -sV <host>
sudo nmap -sU -p 3360 <host>
nc -zv <host> 3360

Block it in the firewall

sudo ufw deny 3360/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3360" -Direction Inbound -LocalPort 3360 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3360 used for?

Port 3360 is assigned by IANA to kv-server (KV Server).

Is port 3360 TCP or UDP?

Port 3360 is registered for TCP and UDP.

Is it safe to open port 3360?

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 3360 is open?

On Linux run "ss -ltnup 'sport = :3360'", on macOS "lsof -nP -i :3360", and on Windows "netstat -ano | findstr :3360" to see the local process. From another machine, "nmap -p 3360 <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

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