github.com/khulnasoft-lab/defsec@v1.0.5-0.20230827010352-5e9f46893d95/rules/cloud/policies/aws/redshift/use_vpc.go (about)

     1  package redshift
     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 CheckUsesVPC = rules.Register(
    12  	scan.Rule{
    13  		AVDID:      "AVD-AWS-0127",
    14  		Provider:   providers.AWSProvider,
    15  		Service:    "redshift",
    16  		ShortCode:  "use-vpc",
    17  		Summary:    "Redshift cluster should be deployed into a specific VPC",
    18  		Impact:     "Redshift cluster does not benefit from VPC security if it is deployed in EC2 classic mode",
    19  		Resolution: "Deploy Redshift cluster into a non default VPC",
    20  		Explanation: `Redshift clusters that are created without subnet details will be created in EC2 classic mode, meaning that they will be outside of a known VPC and running in tennant.
    21  
    22  In order to benefit from the additional security features achieved with using an owned VPC, the subnet should be set.`,
    23  		Links: []string{
    24  			"https://docs.aws.amazon.com/redshift/latest/mgmt/managing-clusters-vpc.html",
    25  		},
    26  		Terraform: &scan.EngineMetadata{
    27  			GoodExamples:        terraformUseVpcGoodExamples,
    28  			BadExamples:         terraformUseVpcBadExamples,
    29  			Links:               terraformUseVpcLinks,
    30  			RemediationMarkdown: terraformUseVpcRemediationMarkdown,
    31  		},
    32  		CloudFormation: &scan.EngineMetadata{
    33  			GoodExamples:        cloudFormationUseVpcGoodExamples,
    34  			BadExamples:         cloudFormationUseVpcBadExamples,
    35  			Links:               cloudFormationUseVpcLinks,
    36  			RemediationMarkdown: cloudFormationUseVpcRemediationMarkdown,
    37  		},
    38  		Severity: severity.High,
    39  	},
    40  	func(s *state.State) (results scan.Results) {
    41  		for _, cluster := range s.AWS.Redshift.Clusters {
    42  			if cluster.SubnetGroupName.IsEmpty() {
    43  				results.Add(
    44  					"Cluster is deployed outside of a VPC.",
    45  					cluster.SubnetGroupName,
    46  				)
    47  			} else {
    48  				results.AddPassed(&cluster)
    49  			}
    50  		}
    51  		return
    52  	},
    53  )