documentdb

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• Variables

Variables

var CheckEnableLogExport = rules.Register(
	rules.Rule{
		AVDID:       "AVD-AWS-0020",
		Provider:    providers.AWSProvider,
		Service:     "documentdb",
		ShortCode:   "enable-log-export",
		Summary:     "DocumentDB logs export should be enabled",
		Impact:      "Limited visibility of audit trail for changes to the DocumentDB",
		Resolution:  "Enable export logs",
		Explanation: `Document DB does not have auditing by default. To ensure that you are able to accurately audit the usage of your DocumentDB cluster you should enable export logs.`,
		Links: []string{
			"https://docs.aws.amazon.com/documentdb/latest/developerguide/event-auditing.html",
		},
		Terraform: &rules.EngineMetadata{
			GoodExamples:        terraformEnableLogExportGoodExamples,
			BadExamples:         terraformEnableLogExportBadExamples,
			Links:               terraformEnableLogExportLinks,
			RemediationMarkdown: terraformEnableLogExportRemediationMarkdown,
		},
		CloudFormation: &rules.EngineMetadata{
			GoodExamples:        cloudFormationEnableLogExportGoodExamples,
			BadExamples:         cloudFormationEnableLogExportBadExamples,
			Links:               cloudFormationEnableLogExportLinks,
			RemediationMarkdown: cloudFormationEnableLogExportRemediationMarkdown,
		},
		Severity: severity.Medium,
	},
	func(s *state.State) (results rules.Results) {
		for _, cluster := range s.AWS.DocumentDB.Clusters {
			var hasAudit bool
			var hasProfiler bool

			for _, log := range cluster.EnabledLogExports {
				if log.EqualTo(documentdb.LogExportAudit) {
					hasAudit = true
				}
				if log.EqualTo(documentdb.LogExportProfiler) {
					hasProfiler = true
				}
			}
			if !hasAudit && !hasProfiler {
				results.Add(
					"Neither CloudWatch audit nor profiler log exports are enabled.",
					&cluster,
				)
			} else {
				results.AddPassed(&cluster)
			}
		}
		return
	},
)

var CheckEnableStorageEncryption = rules.Register(
	rules.Rule{
		AVDID:       "AVD-AWS-0021",
		Provider:    providers.AWSProvider,
		Service:     "documentdb",
		ShortCode:   "enable-storage-encryption",
		Summary:     "DocumentDB storage must be encrypted",
		Impact:      "Unencrypted sensitive data is vulnerable to compromise.",
		Resolution:  "Enable storage encryption",
		Explanation: `Encryption of the underlying storage used by DocumentDB ensures that if their is compromise of the disks, the data is still protected.`,
		Links:       []string{"https://docs.aws.amazon.com/documentdb/latest/developerguide/encryption-at-rest.html"},
		Terraform: &rules.EngineMetadata{
			GoodExamples:        terraformEnableStorageEncryptionGoodExamples,
			BadExamples:         terraformEnableStorageEncryptionBadExamples,
			Links:               terraformEnableStorageEncryptionLinks,
			RemediationMarkdown: terraformEnableStorageEncryptionRemediationMarkdown,
		},
		CloudFormation: &rules.EngineMetadata{
			GoodExamples:        cloudFormationEnableStorageEncryptionGoodExamples,
			BadExamples:         cloudFormationEnableStorageEncryptionBadExamples,
			Links:               cloudFormationEnableStorageEncryptionLinks,
			RemediationMarkdown: cloudFormationEnableStorageEncryptionRemediationMarkdown,
		},
		Severity: severity.High,
	},
	func(s *state.State) (results rules.Results) {
		for _, cluster := range s.AWS.DocumentDB.Clusters {
			if cluster.StorageEncrypted.IsFalse() {
				results.Add(
					"Cluster storage does not have encryption enabled.",
					cluster.StorageEncrypted,
				)
			} else {
				results.AddPassed(&cluster)
			}
		}
		return
	},
)

var CheckEncryptionCustomerKey = rules.Register(
	rules.Rule{
		AVDID:       "AVD-AWS-0022",
		Provider:    providers.AWSProvider,
		Service:     "documentdb",
		ShortCode:   "encryption-customer-key",
		Summary:     "DocumentDB encryption should use Customer Managed Keys",
		Impact:      "Using AWS managed keys does not allow for fine grained control",
		Resolution:  "Enable encryption using customer managed keys",
		Explanation: `Encryption using AWS keys provides protection for your DocumentDB underlying storage. To increase control of the encryption and manage factors like rotation use customer managed keys.`,
		Links:       []string{"https://docs.aws.amazon.com/documentdb/latest/developerguide/security.encryption.ssl.public-key.html"},
		Terraform: &rules.EngineMetadata{
			GoodExamples:        terraformEncryptionCustomerKeyGoodExamples,
			BadExamples:         terraformEncryptionCustomerKeyBadExamples,
			Links:               terraformEncryptionCustomerKeyLinks,
			RemediationMarkdown: terraformEncryptionCustomerKeyRemediationMarkdown,
		},
		CloudFormation: &rules.EngineMetadata{
			GoodExamples:        cloudFormationEncryptionCustomerKeyGoodExamples,
			BadExamples:         cloudFormationEncryptionCustomerKeyBadExamples,
			Links:               cloudFormationEncryptionCustomerKeyLinks,
			RemediationMarkdown: cloudFormationEncryptionCustomerKeyRemediationMarkdown,
		},
		Severity: severity.Low,
	},
	func(s *state.State) (results rules.Results) {
		for _, cluster := range s.AWS.DocumentDB.Clusters {
			if cluster.IsManaged() && cluster.KMSKeyID.IsEmpty() {
				results.Add(
					"Cluster encryption does not use a customer-managed KMS key.",
					cluster.KMSKeyID,
				)
			} else {
				results.AddPassed(&cluster)
			}
			for _, instance := range cluster.Instances {
				if instance.IsUnmanaged() {
					continue
				}
				if instance.KMSKeyID.IsEmpty() {
					results.Add(
						"Instance encryption does not use a customer-managed KMS key.",
						instance.KMSKeyID,
					)
				} else {
					results.AddPassed(&cluster)
				}

			}
		}
		return
	},
)