CyberHunter
Local dataset, no network
// Other services

Port 2313: IAPP (Inter Access Point Protocol)

Port 2313 is assigned by IANA to iapp (IAPP (Inter Access Point Protocol)).

2313

How iapp works

Other services
client:2313iappresponse client:2313iappresponse

The client sends a request to port 2313 and the iapp 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 2313 dangerous?

We have no specific security note for port 2313. 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 2313

ServicePortTransportDescriptionReferenceUpdated
iapp 2313 TCP, UDP IAPP (Inter Access Point Protocol) - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2313, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2313'      # process listening on 2313
sudo lsof -nP -i :2313

macOS

sudo lsof -nP -i :2313

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2313 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2313
netstat -ano | findstr :2313

From another machine

nmap -p 2313 -sV <host>
sudo nmap -sU -p 2313 <host>
nc -zv <host> 2313

Block it in the firewall

sudo ufw deny 2313/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2313" -Direction Inbound -LocalPort 2313 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2313 used for?

Port 2313 is assigned by IANA to iapp (IAPP (Inter Access Point Protocol)).

Is port 2313 TCP or UDP?

Port 2313 is registered for TCP and UDP.

Is it safe to open port 2313?

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 2313 is open?

On Linux run "ss -ltnup 'sport = :2313'", on macOS "lsof -nP -i :2313", and on Windows "netstat -ano | findstr :2313" to see the local process. From another machine, "nmap -p 2313 <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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