CyberHunter
Local dataset, no network
// Other services

Port 4548: Synchromesh

Port 4548 is assigned by IANA to synchromesh (Synchromesh).

4548

How synchromesh works

Other services
client:4548synchromeshresponse client:4548synchromeshresponse

The client sends a request to port 4548 and the synchromesh 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 4548 dangerous?

We have no specific security note for port 4548. 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 4548

ServicePortTransportDescriptionReferenceUpdated
synchromesh 4548 TCP, UDP Synchromesh - 2006-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 4548, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4548'      # process listening on 4548
sudo lsof -nP -i :4548

macOS

sudo lsof -nP -i :4548

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4548 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4548
netstat -ano | findstr :4548

From another machine

nmap -p 4548 -sV <host>
sudo nmap -sU -p 4548 <host>
nc -zv <host> 4548

Block it in the firewall

sudo ufw deny 4548/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4548" -Direction Inbound -LocalPort 4548 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4548 used for?

Port 4548 is assigned by IANA to synchromesh (Synchromesh).

Is port 4548 TCP or UDP?

Port 4548 is registered for TCP and UDP.

Is it safe to open port 4548?

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 4548 is open?

On Linux run "ss -ltnup 'sport = :4548'", on macOS "lsof -nP -i :4548", and on Windows "netstat -ano | findstr :4548" to see the local process. From another machine, "nmap -p 4548 <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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