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// Other services

Port 3510: XSS Port

Port 3510 is assigned by IANA to xss-port (XSS Port).

3510

How xss-port works

Other services
client:3510xss-portresponse client:3510xss-portresponse

The client sends a request to port 3510 and the xss-port 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 3510 dangerous?

We have no specific security note for port 3510. 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 3510

ServicePortTransportDescriptionReferenceUpdated
xss-port 3510 TCP, UDP XSS Port - 2002-05

// source: IANA service name and port number registry

03 Check it

Which program uses port 3510, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3510'      # process listening on 3510
sudo lsof -nP -i :3510

macOS

sudo lsof -nP -i :3510

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3510 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3510
netstat -ano | findstr :3510

From another machine

nmap -p 3510 -sV <host>
sudo nmap -sU -p 3510 <host>
nc -zv <host> 3510

Block it in the firewall

sudo ufw deny 3510/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3510" -Direction Inbound -LocalPort 3510 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3510 used for?

Port 3510 is assigned by IANA to xss-port (XSS Port).

Is port 3510 TCP or UDP?

Port 3510 is registered for TCP and UDP.

Is it safe to open port 3510?

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 3510 is open?

On Linux run "ss -ltnup 'sport = :3510'", on macOS "lsof -nP -i :3510", and on Windows "netstat -ano | findstr :3510" to see the local process. From another machine, "nmap -p 3510 <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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