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

tags:
- PCI DSS v3.2.1
- NIST 800-53 r5
- CIS AWS Foundations Benchmark v1.4.0
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: AwsAccountId
  - identifier: CloudAppAccountId
    columnName: RootUserARN
tactics:
- PrivilegeEscalation
- Persistence
- CredentialAccess
- DefenseEvasion
requiredDataConnectors:
- dataTypes:
  - AWSSecurityHubFindings
  connectorId: AWSSecurityHub
alertDetailsOverride:
  alertDisplayNameFormat: AWS Account {{AwsAccountId}} root user lacks MFA
  alertDescriptionFormat: 'AWS Account {{AwsAccountId}} has root user without MFA (Resource: {{RootUserARN}}).'
id: 6b3b9b1d-0d5d-4d4a-9f0f-8d1e2c7a5f44
severity: High
status: Available
customDetails:
  ComplianceControlId: ComplianceSecurityControlId
  FindingId: AwsSecurityFindingId
  RootUserARN: RootUserARN
  Region: AwsRegion
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  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/AWS Security Hub/Analytic Rules/IAMRootUserMFADisabled.yaml
kind: Scheduled
queryPeriod: 1h
version: 1.0.0
name: AWS Security Hub - Detect root user lacking MFA
queryFrequency: 1h
triggerThreshold: 0
relevantTechniques:
- T1098
- T1110
- T1556.006
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.  
triggerOperator: gt

ARM