dynamodb

Documentation

Index

• Variables

Variables

var CheckEnableAtRestEncryption = rules.Register(
	rules.Rule{
		AVDID:       "AVD-AWS-0023",
		Provider:    provider.AWSProvider,
		Service:     "dynamodb",
		ShortCode:   "enable-at-rest-encryption",
		Summary:     "DAX Cluster should always encrypt data at rest",
		Impact:      "Data can be freely read if compromised",
		Resolution:  "Enable encryption at rest for DAX Cluster",
		Explanation: `Amazon DynamoDB Accelerator (DAX) encryption at rest provides an additional layer of data protection by helping secure your data from unauthorized access to the underlying storage.`,
		Links: []string{
			"https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAXEncryptionAtRest.html",
			"https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-dax-cluster.html",
		},
		Severity: severity.High,
	},
	func(s *state.State) (results rules.Results) {
		for _, cluster := range s.AWS.DynamoDB.DAXClusters {
			if !cluster.IsManaged() {
				continue
			}
			if cluster.ServerSideEncryption.Enabled.IsFalse() {
				results.Add(
					"Cluster encryption is not enabled.",
					cluster.ServerSideEncryption.Enabled,
				)
			} else {
				results.AddPassed(&cluster)
			}
		}
		return
	},
)

var CheckEnableRecovery = rules.Register(
	rules.Rule{
		AVDID:      "AVD-AWS-0024",
		Provider:   provider.AWSProvider,
		Service:    "dynamodb",
		ShortCode:  "enable-recovery",
		Summary:    "Point in time recovery should be enabled to protect DynamoDB table",
		Impact:     "Accidental or malicious writes and deletes can't be rolled back",
		Resolution: "Enable point in time recovery",
		Explanation: `DynamoDB tables should be protected against accidentally or malicious write/delete actions by ensuring that there is adequate protection.

By enabling point-in-time-recovery you can restore to a known point in the event of loss of data.`,
		Links: []string{
			"https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/PointInTimeRecovery.html",
		},
		Severity: severity.Medium,
	},
	func(s *state.State) (results rules.Results) {
		for _, cluster := range s.AWS.DynamoDB.DAXClusters {
			if !cluster.IsManaged() {
				continue
			}
			if cluster.PointInTimeRecovery.IsFalse() {
				results.Add(
					"Point-in-time recovery is not enabled.",
					cluster.PointInTimeRecovery,
				)
			} else {
				results.AddPassed(&cluster)
			}
		}
		return
	},
)

var CheckTableCustomerKey = rules.Register(
	rules.Rule{
		AVDID:       "AVD-AWS-0025",
		Provider:    provider.AWSProvider,
		Service:     "dynamodb",
		ShortCode:   "table-customer-key",
		Summary:     "DynamoDB tables should use at rest encryption with a Customer Managed Key",
		Impact:      "Using AWS managed keys does not allow for fine grained control",
		Resolution:  "Enable server side encryption with a customer managed key",
		Explanation: `DynamoDB tables are encrypted by default using AWS managed encryption keys. To increase control of the encryption and control the management of factors like key rotation, use a Customer Managed Key.`,
		Links: []string{
			"https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/EncryptionAtRest.html",
		},
		Severity: severity.Low,
	},
	func(s *state.State) (results rules.Results) {
		for _, cluster := range s.AWS.DynamoDB.DAXClusters {
			if !cluster.IsManaged() {
				continue
			}
			if cluster.ServerSideEncryption.KMSKeyID.IsEmpty() {
				results.Add(
					"Cluster encryption does not use a customer-managed KMS key.",
					cluster.ServerSideEncryption.KMSKeyID,
				)
			} else {
				results.AddPassed(&cluster)
			}
		}
		return
	},
)