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Module: security-hub

Terraform module to deploy AWS Security Hub.

Introduction

This module enables AWS Security Hub in one region of one account and optionally sets up an SNS topic to receive notifications of its findings.

Usage

For a complete example, see examples/complete.

For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.

Here's how to invoke this module in your projects:

module "securityhub" {
source = "cloudposse/security-hub/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"

create_sns_topic = true
subscribers = {
opsgenie = {
protocol = "https"
endpoint = "https://api.example.com/v1/"
endpoint_auto_confirms = true
raw_message_delivery = false
}
}
}

Examples

Here is an example of using this module:

Requirements

NameVersion
terraform>= 1.0
aws>= 2

Providers

NameVersion
aws>= 2

Modules

NameSourceVersion
imported_findings_labelcloudposse/label/null0.25.0
sns_kms_keycloudposse/kms-key/aws0.12.2
sns_kms_key_labelcloudposse/label/null0.25.0
sns_topiccloudposse/sns-topic/aws0.21.0
thiscloudposse/label/null0.25.0

Resources

NameType
aws_cloudwatch_event_rule.imported_findingsresource
aws_cloudwatch_event_target.imported_findingsresource
aws_securityhub_account.thisresource
aws_securityhub_finding_aggregator.thisresource
aws_securityhub_standards_subscription.thisresource
aws_caller_identity.thisdata source
aws_iam_policy_document.sns_kms_key_policydata source
aws_partition.thisdata source
aws_region.thisdata source

Inputs

NameDescriptionTypeDefaultRequired
additional_tag_mapAdditional key-value pairs to add to each map in tags_as_list_of_maps. Not added to tags or id.
This is for some rare cases where resources want additional configuration of tags
and therefore take a list of maps with tag key, value, and additional configuration.
map(string){}no
attributesID element. Additional attributes (e.g. workers or cluster) to add to id,
in the order they appear in the list. New attributes are appended to the
end of the list. The elements of the list are joined by the delimiter
and treated as a single ID element.
list(string)[]no
cloudwatch_event_rule_pattern_detail_typeThe detail-type pattern used to match events that will be sent to SNS.

For more information, see:
https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/CloudWatchEventsandEventPatterns.html
string"Security Hub Findings - Imported"no
contextSingle object for setting entire context at once.
See description of individual variables for details.
Leave string and numeric variables as null to use default value.
Individual variable settings (non-null) override settings in context object,
except for attributes, tags, and additional_tag_map, which are merged.
any
{
"additional_tag_map": {},
"attributes": [],
"delimiter": null,
"descriptor_formats": {},
"enabled": true,
"environment": null,
"id_length_limit": null,
"label_key_case": null,
"label_order": [],
"label_value_case": null,
"labels_as_tags": [
"unset"
],
"name": null,
"namespace": null,
"regex_replace_chars": null,
"stage": null,
"tags": {},
"tenant": null
}
no
create_sns_topicFlag to indicate whether an SNS topic should be created for notifications

If you want to send findings to a new SNS topic, set this to true and provide a valid configuration for subscribers
boolfalseno
delimiterDelimiter to be used between ID elements.
Defaults to - (hyphen). Set to "" to use no delimiter at all.
stringnullno
descriptor_formatsDescribe additional descriptors to be output in the descriptors output map.
Map of maps. Keys are names of descriptors. Values are maps of the form
{<br/> format = string<br/> labels = list(string)<br/>}
(Type is any so the map values can later be enhanced to provide additional options.)
format is a Terraform format string to be passed to the format() function.
labels is a list of labels, in order, to pass to format() function.
Label values will be normalized before being passed to format() so they will be
identical to how they appear in id.
Default is {} (descriptors output will be empty).
any{}no
enable_default_standardsFlag to indicate whether default standards should be enabledbooltrueno
enabledSet to false to prevent the module from creating any resourcesboolnullno
enabled_standardsA list of standards/rulesets to enable

See https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/securityhub_standards_subscription#argument-reference

The possible values are:

- standards/aws-foundational-security-best-practices/v/1.0.0
- ruleset/cis-aws-foundations-benchmark/v/1.2.0
- standards/pci-dss/v/3.2.1
list(any)[]no
environmentID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'stringnullno
finding_aggregator_enabledFlag to indicate whether a finding aggregator should be created

If you want to aggregate findings from one region, set this to true.

For more information, see:
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/securityhub_finding_aggregator
boolfalseno
finding_aggregator_linking_modeLinking mode to use for the finding aggregator.

The possible values are:
- ALL_REGIONS - Aggregate from all regions
- ALL_REGIONS_EXCEPT_SPECIFIED - Aggregate from all regions except those specified in var.finding_aggregator_regions
- SPECIFIED_REGIONS - Aggregate from regions specified in finding_aggregator_enabled
string"ALL_REGIONS"no
finding_aggregator_regionsA list of regions to aggregate findings from.

This is only used if finding_aggregator_enabled is true.
list(string)[]no
id_length_limitLimit id to this many characters (minimum 6).
Set to 0 for unlimited length.
Set to null for keep the existing setting, which defaults to 0.
Does not affect id_full.
numbernullno
imported_findings_notification_arnThe ARN for an SNS topic to send findings notifications to. This is only used if create_sns_topic is false.

If you want to send findings to an existing SNS topic, set the value of this to the ARN of the existing topic and set
create_sns_topic to false.
stringnullno
label_key_caseControls the letter case of the tags keys (label names) for tags generated by this module.
Does not affect keys of tags passed in via the tags input.
Possible values: lower, title, upper.
Default value: title.
stringnullno
label_orderThe order in which the labels (ID elements) appear in the id.
Defaults to ["namespace", "environment", "stage", "name", "attributes"].
You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.
list(string)nullno
label_value_caseControls the letter case of ID elements (labels) as included in id,
set as tag values, and output by this module individually.
Does not affect values of tags passed in via the tags input.
Possible values: lower, title, upper and none (no transformation).
Set this to title and set delimiter to "" to yield Pascal Case IDs.
Default value: lower.
stringnullno
labels_as_tagsSet of labels (ID elements) to include as tags in the tags output.
Default is to include all labels.
Tags with empty values will not be included in the tags output.
Set to [] to suppress all generated tags.
Notes:
The value of the name tag, if included, will be the id, not the name.
Unlike other null-label inputs, the initial setting of labels_as_tags cannot be
changed in later chained modules. Attempts to change it will be silently ignored.
set(string)
[
"default"
]
no
nameID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.
This is the only ID element not also included as a tag.
The "name" tag is set to the full id string. There is no tag with the value of the name input.
stringnullno
namespaceID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally uniquestringnullno
regex_replace_charsTerraform regular expression (regex) string.
Characters matching the regex will be removed from the ID elements.
If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits.
stringnullno
stageID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'stringnullno
subscribersRequired configuration for subscibres to SNS topic.
map(object({
protocol = string
# The protocol to use. The possible values for this are: sqs, sms, lambda, application. (http or https are partially supported, see below) (email is an option but is unsupported, see below).
endpoint = string
# The endpoint to send data to, the contents will vary with the protocol. (see below for more information)
endpoint_auto_confirms = bool
# Boolean indicating whether the end point is capable of auto confirming subscription e.g., PagerDuty (default is false)
raw_message_delivery = bool
# Boolean indicating whether or not to enable raw message delivery (the original message is directly passed, not wrapped in JSON with the original message in the message property) (default is false)
}))
{}no
tagsAdditional tags (e.g. {'BusinessUnit': 'XYZ'}).
Neither the tag keys nor the tag values will be modified by this module.
map(string){}no
tenantID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is forstringnullno

Outputs

NameDescription
enabled_subscriptionsA list of subscriptions that have been enabled
sns_topicThe SNS topic that was created
sns_topic_subscriptionsThe SNS topic that was created