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

Port 2502: Kentrox Protocol

Port 2502 is assigned by IANA to kentrox-prot (Kentrox Protocol).

2502

How kentrox-prot works

Other services
client:2502kentrox-protresponse client:2502kentrox-protresponse

The client sends a request to port 2502 and the kentrox-prot 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 2502 dangerous?

We have no specific security note for port 2502. 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 2502

ServicePortTransportDescriptionReferenceUpdated
kentrox-prot 2502 TCP, UDP Kentrox Protocol - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2502, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2502'      # process listening on 2502
sudo lsof -nP -i :2502

macOS

sudo lsof -nP -i :2502

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2502 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2502
netstat -ano | findstr :2502

From another machine

nmap -p 2502 -sV <host>
sudo nmap -sU -p 2502 <host>
nc -zv <host> 2502

Block it in the firewall

sudo ufw deny 2502/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2502" -Direction Inbound -LocalPort 2502 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2502 used for?

Port 2502 is assigned by IANA to kentrox-prot (Kentrox Protocol).

Is port 2502 TCP or UDP?

Port 2502 is registered for TCP and UDP.

Is it safe to open port 2502?

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 2502 is open?

On Linux run "ss -ltnup 'sport = :2502'", on macOS "lsof -nP -i :2502", and on Windows "netstat -ano | findstr :2502" to see the local process. From another machine, "nmap -p 2502 <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