Network misconfigurations

VPC firewall allows public NetBIOS access

Compliance Frameworks


GCP Firewall Rules are specific to a VPC Network. Each rule either allows or denies traffic when its conditions are met. Its conditions allow users to specify the type of traffic, such as ports and protocols, and the source or destination of the traffic, including IP addresses, subnets, and instances. More details can be found in
  • Recommended Mitigation

    Change firewall rules to restrict access to TCP ports 137, 139 and UDP ports 137, 138 (NetBIOS) to a specific IP Range.