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

     1  package rds
     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 CheckNoPublicDbAccess = rules.Register(
    12  	scan.Rule{
    13  		AVDID:       "AVD-AWS-0082",
    14  		Provider:    providers.AWSProvider,
    15  		Service:     "rds",
    16  		ShortCode:   "no-public-db-access",
    17  		Summary:     "A database resource is marked as publicly accessible.",
    18  		Impact:      "The database instance is publicly accessible",
    19  		Resolution:  "Set the database to not be publicly accessible",
    20  		Explanation: `Database resources should not publicly available. You should limit all access to the minimum that is required for your application to function.`,
    21  		Links: []string{
    22  			"https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_VPC.WorkingWithRDSInstanceinaVPC.html#USER_VPC.Hiding",
    23  		},
    24  		Terraform: &scan.EngineMetadata{
    25  			GoodExamples:        terraformNoPublicDbAccessGoodExamples,
    26  			BadExamples:         terraformNoPublicDbAccessBadExamples,
    27  			Links:               terraformNoPublicDbAccessLinks,
    28  			RemediationMarkdown: terraformNoPublicDbAccessRemediationMarkdown,
    29  		},
    30  		CloudFormation: &scan.EngineMetadata{
    31  			GoodExamples:        cloudFormationNoPublicDbAccessGoodExamples,
    32  			BadExamples:         cloudFormationNoPublicDbAccessBadExamples,
    33  			Links:               cloudFormationNoPublicDbAccessLinks,
    34  			RemediationMarkdown: cloudFormationNoPublicDbAccessRemediationMarkdown,
    35  		},
    36  		Severity: severity.Critical,
    37  	},
    38  	func(s *state.State) (results scan.Results) {
    39  		for _, cluster := range s.AWS.RDS.Clusters {
    40  			for _, instance := range cluster.Instances {
    41  				if instance.PublicAccess.IsTrue() {
    42  					results.Add(
    43  						"Cluster instance is exposed publicly.",
    44  						instance.PublicAccess,
    45  					)
    46  				} else {
    47  					results.AddPassed(&instance)
    48  				}
    49  			}
    50  		}
    51  		for _, instance := range s.AWS.RDS.Instances {
    52  			if instance.PublicAccess.IsTrue() {
    53  				results.Add(
    54  					"Instance is exposed publicly.",
    55  					instance.PublicAccess,
    56  				)
    57  			} else {
    58  				results.AddPassed(&instance)
    59  			}
    60  		}
    61  		return
    62  	},
    63  )