github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/cloud/policies/google/iam/no_default_network.go (about)

     1  package iam
     2  
     3  import (
     4  	"github.com/khulnasoft-lab/defsec/internal/rules"
     5  	"github.com/khulnasoft-lab/defsec/pkg/providers"
     6  	"github.com/khulnasoft-lab/defsec/pkg/scan"
     7  	"github.com/khulnasoft-lab/defsec/pkg/severity"
     8  	"github.com/khulnasoft-lab/defsec/pkg/state"
     9  )
    10  
    11  var CheckNoDefaultNetwork = rules.Register(
    12  	scan.Rule{
    13  		AVDID:       "AVD-GCP-0010",
    14  		Provider:    providers.GoogleProvider,
    15  		Service:     "iam",
    16  		ShortCode:   "no-default-network",
    17  		Summary:     "Default network should not be created at project level",
    18  		Impact:      "Exposure of internal infrastructure/services to public internet",
    19  		Resolution:  "Disable automatic default network creation",
    20  		Explanation: `The default network which is provided for a project contains multiple insecure firewall rules which allow ingress to the project's infrastructure. Creation of this network should therefore be disabled.`,
    21  		Links:       []string{},
    22  		Terraform: &scan.EngineMetadata{
    23  			GoodExamples:        terraformNoDefaultNetworkGoodExamples,
    24  			BadExamples:         terraformNoDefaultNetworkBadExamples,
    25  			Links:               terraformNoDefaultNetworkLinks,
    26  			RemediationMarkdown: terraformNoDefaultNetworkRemediationMarkdown,
    27  		},
    28  		Severity: severity.High,
    29  	},
    30  	func(s *state.State) (results scan.Results) {
    31  		// TODO: check constraints before auto_create_network
    32  		for _, project := range s.Google.IAM.AllProjects() {
    33  			if project.Metadata.IsUnmanaged() {
    34  				continue
    35  			}
    36  			if project.AutoCreateNetwork.IsTrue() {
    37  				results.Add(
    38  					"Project has automatic network creation enabled.",
    39  					project.AutoCreateNetwork,
    40  				)
    41  			} else {
    42  				results.AddPassed(project)
    43  			}
    44  		}
    45  		return
    46  	},
    47  )