- 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.
Port 5090: Candidate AR
Port 5090 is assigned by IANA to car (Candidate AR).
5090
How car works
Other servicesThe client sends a request to port 5090 and the car service answers.
- Transport
- SCTP
- 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
Is port 5090 dangerous?
We have no specific security note for port 5090. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 5090
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| car | 5090 | SCTP | Candidate AR | - | - |
// source: IANA service name and port number registry
Which program uses port 5090, and is it reachable?
Linux
sudo ss -ltnup 'sport = :5090' # process listening on 5090
sudo lsof -nP -i :5090macOS
sudo lsof -nP -i :5090
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5090 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 5090 netstat -ano | findstr :5090
From another machine
nmap -p 5090 -sV <host> nc -zv <host> 5090
Block it in the firewall
sudo ufw deny 5090/sctp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 5090" -Direction Inbound -LocalPort 5090 -Protocol SCTP -Action Block # Windows
What is port 5090 used for?
Port 5090 is assigned by IANA to car (Candidate AR).
Is port 5090 TCP or UDP?
Port 5090 is registered for SCTP.
Is it safe to open port 5090?
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 5090 is open?
On Linux run "ss -ltnup 'sport = :5090'", on macOS "lsof -nP -i :5090", and on Windows "netstat -ano | findstr :5090" to see the local process. From another machine, "nmap -p 5090 <host>" shows whether it is reachable.
Other other services ports
: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