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// DevOps, cloud & containers

Port 2477: SecurSight Certificate Valifation Service

Port 2477 is assigned by IANA to ssm-cvs (SecurSight Certificate Valifation Service).

2477

How ssm-cvs works

DevOps, cloud & containers
adminhostssm-cvs adminhostssm-cvs

Commands sent to port 2477 create and control containers or cluster resources on the host.

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
DevOps, cloud & containers
01 Security

Is port 2477 dangerous?

We have no specific security note for port 2477. Its risk depends on the program actually listening on it. General advice for devops, cloud & containers services:

  • Container and orchestration APIs give full control of hosts: require mutual TLS and RBAC.
  • Never expose them to the Internet.
  • Rotate tokens and certificates and audit who has access.
02 Registry

IANA registry entries for port 2477

ServicePortTransportDescriptionReferenceUpdated
ssm-cvs 2477 TCP, UDP SecurSight Certificate Valifation Service - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2477, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2477'      # process listening on 2477
sudo lsof -nP -i :2477

macOS

sudo lsof -nP -i :2477

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2477 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2477
netstat -ano | findstr :2477

From another machine

nmap -p 2477 -sV <host>
sudo nmap -sU -p 2477 <host>
nc -zv <host> 2477

Block it in the firewall

sudo ufw deny 2477/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2477" -Direction Inbound -LocalPort 2477 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2477 used for?

Port 2477 is assigned by IANA to ssm-cvs (SecurSight Certificate Valifation Service).

Is port 2477 TCP or UDP?

Port 2477 is registered for TCP and UDP.

Is it safe to open port 2477?

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. Container and orchestration APIs give full control of hosts: require mutual TLS and RBAC.

How do I check if port 2477 is open?

On Linux run "ss -ltnup 'sport = :2477'", on macOS "lsof -nP -i :2477", and on Windows "netstat -ano | findstr :2477" to see the local process. From another machine, "nmap -p 2477 <host>" shows whether it is reachable.

05 Related
:2375 Docker API (HTTP) tcp · critical risk :2376 Docker API (TLS) tcp · high risk :6443 Kubernetes API tcp · udp · high risk :10250 Kubelet API tcp · critical risk :2379 etcd tcp · critical risk :8500 Consul tcp · udp · high risk :4505 SaltStack tcp · critical risk :9000 PHP-FPM / SonarQube / Portainer tcp · udp · high risk

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