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Open Custom Ports

HIGH

Source

CloudSploit

open-custom-ports

management console

Open Custom Ports

Ensure that defined custom ports are not open to public.

To prevent attackers from identifying and exploiting the services running on your instances, make sure the VPC Network custom ports are not open to public.

Recommended Actions

Ensure that your VPC Network firewall rules do not allow inbound traffic for a range of ports.

Links

https://cloud.google.com/vpc/docs/firewalls

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