CyberHunter
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// Other services

Port 7548: Threat Information Distribution Protocol

Port 7548 is assigned by IANA to tidp (Threat Information Distribution Protocol).

7548

How tidp works

Other services
client:7548tidpresponse client:7548tidpresponse

The client sends a request to port 7548 and the tidp 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 7548 dangerous?

We have no specific security note for port 7548. 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 7548

ServicePortTransportDescriptionReferenceUpdated
tidp 7548 TCP, UDP Threat Information Distribution Protocol - 2006-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 7548, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7548'      # process listening on 7548
sudo lsof -nP -i :7548

macOS

sudo lsof -nP -i :7548

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7548 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7548
netstat -ano | findstr :7548

From another machine

nmap -p 7548 -sV <host>
sudo nmap -sU -p 7548 <host>
nc -zv <host> 7548

Block it in the firewall

sudo ufw deny 7548/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7548" -Direction Inbound -LocalPort 7548 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7548 used for?

Port 7548 is assigned by IANA to tidp (Threat Information Distribution Protocol).

Is port 7548 TCP or UDP?

Port 7548 is registered for TCP and UDP.

Is it safe to open port 7548?

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 7548 is open?

On Linux run "ss -ltnup 'sport = :7548'", on macOS "lsof -nP -i :7548", and on Windows "netstat -ano | findstr :7548" to see the local process. From another machine, "nmap -p 7548 <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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