AWS Security Hub - Detect SSM documents public sharing enabled

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Id	0aa20f8c-b8e4-4a34-a5b8-8b2d9dd7d1c2
Rulename	AWS Security Hub - Detect SSM documents public sharing enabled
Description	This query detects AWS accounts where public sharing is enabled, using AWS Security Hub control SSM.7 findings. Allowing public sharing of SSM documents can expose automation content and enable unauthorized execution or tampering.
Severity	High
Tactics	Execution
Techniques	T1059
Required data connectors	AWSSecurityHub
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AWS Security Hub/Analytic Rules/SSMDocumentsPublicSharingEnabled.yaml
Version	1.0.0
Arm template	0aa20f8c-b8e4-4a34-a5b8-8b2d9dd7d1c2.json

KQL

AWSSecurityHubFindings
| where RecordState == "ACTIVE" and ComplianceStatus == "FAILED"
| where tostring(AwsSecurityFindingGeneratorId) == "security-control/SSM.7"
      or tostring(ComplianceSecurityControlId) == "SSM.7"
| summarize TimeGenerated = max(TimeGenerated)
    by AwsAccountId, AwsRegion, AwsSecurityFindingTitle, AwsSecurityFindingDescription,
       AwsSecurityFindingId, ComplianceSecurityControlId

YAML

tags:
- AWS Foundational Security Best Practices v1.0.0
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: AwsAccountId
  - identifier: CloudAppAccountId
    columnName: AwsAccountId
tactics:
- Execution
requiredDataConnectors:
- dataTypes:
  - AWSSecurityHubFindings
  connectorId: AWSSecurityHub
alertDetailsOverride:
  alertDisplayNameFormat: AWS Account {{AwsAccountId}} SSM documents public sharing enabled
  alertDescriptionFormat: AWS Account {{AwsAccountId}} has SSM documents with public sharing enabled. Disable public sharing setting to prevent unintended exposure of automation documents.
id: 0aa20f8c-b8e4-4a34-a5b8-8b2d9dd7d1c2
severity: High
status: Available
customDetails:
  ComplianceControlId: ComplianceSecurityControlId
  FindingId: AwsSecurityFindingId
  Region: AwsRegion
query: |
  AWSSecurityHubFindings
  | where RecordState == "ACTIVE" and ComplianceStatus == "FAILED"
  | where tostring(AwsSecurityFindingGeneratorId) == "security-control/SSM.7"
        or tostring(ComplianceSecurityControlId) == "SSM.7"
  | summarize TimeGenerated = max(TimeGenerated)
      by AwsAccountId, AwsRegion, AwsSecurityFindingTitle, AwsSecurityFindingDescription,
         AwsSecurityFindingId, ComplianceSecurityControlId  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AWS Security Hub/Analytic Rules/SSMDocumentsPublicSharingEnabled.yaml
kind: Scheduled
queryPeriod: 1h
version: 1.0.0
name: AWS Security Hub - Detect SSM documents public sharing enabled
queryFrequency: 1h
triggerThreshold: 0
relevantTechniques:
- T1059
description: |
  This query detects AWS accounts where public sharing is enabled, using AWS Security Hub control SSM.7 findings.
  Allowing public sharing of SSM documents can expose automation content and enable unauthorized execution or tampering.  
triggerOperator: gt

ARM