CyberHunter
Local dataset, no network
// Other services

Port 4185: Woven Control Plane Protocol

Port 4185 is assigned by IANA to wcpp (Woven Control Plane Protocol).

4185

How wcpp works

Other services
client:4185wcppresponse client:4185wcppresponse

The client sends a request to port 4185 and the wcpp 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 4185 dangerous?

We have no specific security note for port 4185. 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 4185

ServicePortTransportDescriptionReferenceUpdated
wcpp 4185 TCP, UDP Woven Control Plane Protocol - 2008-04-14

// source: IANA service name and port number registry

03 Check it

Which program uses port 4185, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4185'      # process listening on 4185
sudo lsof -nP -i :4185

macOS

sudo lsof -nP -i :4185

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4185 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4185
netstat -ano | findstr :4185

From another machine

nmap -p 4185 -sV <host>
sudo nmap -sU -p 4185 <host>
nc -zv <host> 4185

Block it in the firewall

sudo ufw deny 4185/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4185" -Direction Inbound -LocalPort 4185 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4185 used for?

Port 4185 is assigned by IANA to wcpp (Woven Control Plane Protocol).

Is port 4185 TCP or UDP?

Port 4185 is registered for TCP and UDP.

Is it safe to open port 4185?

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 4185 is open?

On Linux run "ss -ltnup 'sport = :4185'", on macOS "lsof -nP -i :4185", and on Windows "netstat -ano | findstr :4185" to see the local process. From another machine, "nmap -p 4185 <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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