AWS Security Hub - Detect root user lacking MFA

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Id	6b3b9b1d-0d5d-4d4a-9f0f-8d1e2c7a5f44
Rulename	AWS Security Hub - Detect root user lacking MFA
Description	This query detects AWS accounts where the root user does not have multi-factor authentication (MFA) enabled, using AWS Security Hub control IAM.9 findings. Lack of MFA on the root user increases the risk of unauthorized access and privilege abuse.
Severity	High
Tactics	PrivilegeEscalation Persistence CredentialAccess DefenseEvasion
Techniques	T1098 T1110 T1556.006
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/IAMRootUserMFADisabled.yaml
Version	1.0.0
Arm template	6b3b9b1d-0d5d-4d4a-9f0f-8d1e2c7a5f44.json

KQL

AWSSecurityHubFindings
| where RecordState == "ACTIVE" and ComplianceStatus == "FAILED"
| where tostring(AwsSecurityFindingGeneratorId) == "security-control/IAM.9"
  or tostring(ComplianceSecurityControlId) == "IAM.9"
| extend RootUserARN = tostring(Resources[0].Id)
| summarize TimeGenerated = max(TimeGenerated)
    by AwsAccountId, AwsRegion, AwsSecurityFindingTitle, AwsSecurityFindingDescription,
       AwsSecurityFindingId, ComplianceSecurityControlId, RootUserARN

YAML

triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AWS Security Hub/Analytic Rules/IAMRootUserMFADisabled.yaml
customDetails:
  FindingId: AwsSecurityFindingId
  ComplianceControlId: ComplianceSecurityControlId
  Region: AwsRegion
  RootUserARN: RootUserARN
relevantTechniques:
- T1098
- T1110
- T1556.006
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: AwsAccountId
  - identifier: CloudAppAccountId
    columnName: RootUserARN
alertDetailsOverride:
  alertDisplayNameFormat: AWS Account {{AwsAccountId}} root user lacks MFA
  alertDescriptionFormat: 'AWS Account {{AwsAccountId}} has root user without MFA (Resource: {{RootUserARN}}).'
status: Available
tags:
- PCI DSS v3.2.1
- NIST 800-53 r5
- CIS AWS Foundations Benchmark v1.4.0
id: 6b3b9b1d-0d5d-4d4a-9f0f-8d1e2c7a5f44
query: |
  AWSSecurityHubFindings
  | where RecordState == "ACTIVE" and ComplianceStatus == "FAILED"
  | where tostring(AwsSecurityFindingGeneratorId) == "security-control/IAM.9"
    or tostring(ComplianceSecurityControlId) == "IAM.9"
  | extend RootUserARN = tostring(Resources[0].Id)
  | summarize TimeGenerated = max(TimeGenerated)
      by AwsAccountId, AwsRegion, AwsSecurityFindingTitle, AwsSecurityFindingDescription,
         AwsSecurityFindingId, ComplianceSecurityControlId, RootUserARN  
queryPeriod: 1h
name: AWS Security Hub - Detect root user lacking MFA
version: 1.0.0
severity: High
kind: Scheduled
triggerOperator: gt
description: |
  This query detects AWS accounts where the root user does not have multi-factor authentication (MFA) enabled, using AWS Security Hub control IAM.9 findings.
  Lack of MFA on the root user increases the risk of unauthorized access and privilege abuse.  
queryFrequency: 1h
requiredDataConnectors:
- dataTypes:
  - AWSSecurityHubFindings
  connectorId: AWSSecurityHub
tactics:
- PrivilegeEscalation
- Persistence
- CredentialAccess
- DefenseEvasion

ARM