Uso de conjuntos de pilas de AWS CloudFormation - Guía del usuario de Respuesta frente a incidencias de seguridad de AWS

Uso de conjuntos de pilas de AWS CloudFormation

importante

Respuesta frente a incidencias de seguridad de AWS no habilita las capacidades de contención de forma predeterminada; para ejecutar estas acciones de contención, primero debe conceder los permisos necesarios al servicio mediante roles. Puede crear estos roles de forma individual por cuenta o en toda la organización mediante la implementación de conjuntos de pilas de AWS CloudFormation, que crean los roles necesarios.

Puede consultar instrucciones específicas sobre cómo crear un conjunto de pilas con permisos administrados por servicios.

A continuación se muestran plantillas de conjuntos de pilas para crear los roles AWSSecurityIncidentResponseContainment y AWSSecurityIncidentResponseContainmentExecution.


AWSTemplateFormatVersion: '2010-09-09'
Description: 'Template for Respuesta frente a incidencias de seguridad de AWS containment roles'

Resources:
  AWSSecurityIncidentResponseContainment:
    Type: 'AWS::IAM::Role'
    Properties:
      RoleName: AWSSecurityIncidentResponseContainment
      AssumeRolePolicyDocument:
        {
          'Version': '2012-10-17',
          'Statement':
            [
              {
                'Effect': 'Allow',
                'Principal': { 'Service': 'containment.security-ir.amazonaws.com' },
                'Action': 'sts:AssumeRole',
                'Condition': { 'StringEquals': { 'sts:ExternalId': !Sub '${AWS::AccountId}' } },
              },
              {
                'Effect': 'Allow',
                'Principal': { 'Service': 'containment.security-ir.amazonaws.com' },
                'Action': 'sts:TagSession',
              },
            ],
        }
      Policies:
        - PolicyName: AWSSecurityIncidentResponseContainmentPolicy
          PolicyDocument:
            {
              'Version': '2012-10-17',
              'Statement':
                [
                  {
                    'Effect': 'Allow',
                    'Action': ['ssm:StartAutomationExecution'],
                    'Resource':
                      [
                        !Sub 'arn:${AWS::Partition}:ssm:*:*:automation-definition/AWSSupport-ContainEC2Instance:$DEFAULT',
                        !Sub 'arn:${AWS::Partition}:ssm:*:*:automation-definition/AWSSupport-ContainS3Resource:$DEFAULT',
                        !Sub 'arn:${AWS::Partition}:ssm:*:*:automation-definition/AWSSupport-ContainIAMPrincipal:$DEFAULT',
                      ],
                  },
                  {
                    'Effect': 'Allow',
                    'Action':
                      ['ssm:DescribeInstanceInformation', 'ssm:GetAutomationExecution', 'ssm:ListCommandInvocations'],
                    'Resource': '*',
                  },
                  {
                    'Effect': 'Allow',
                    'Action': ['iam:PassRole'],
                    'Resource': !GetAtt AWSSecurityIncidentResponseContainmentExecution.Arn,
                    'Condition': { 'StringEquals': { 'iam:PassedToService': 'ssm.amazonaws.com' } },
                  },
                ],
            }
  AWSSecurityIncidentResponseContainmentExecution:
    Type: 'AWS::IAM::Role'
    Properties:
      RoleName: AWSSecurityIncidentResponseContainmentExecution
      AssumeRolePolicyDocument:
        {
          'Version': '2012-10-17',
          'Statement':
            [{ 'Effect': 'Allow', 'Principal': { 'Service': 'ssm.amazonaws.com' }, 'Action': 'sts:AssumeRole' }],
        }
      ManagedPolicyArns:
        - !Sub arn:${AWS::Partition}:iam::aws:policy/SecurityAudit
      Policies:
        - PolicyName: AWSSecurityIncidentResponseContainmentExecutionPolicy
          PolicyDocument:
            {
              'Version': '2012-10-17',
              'Statement':
                [
                  {
                    'Sid': 'AllowIAMContainment',
                    'Effect': 'Allow',
                    'Action':
                      [
                        'iam:AttachRolePolicy',
                        'iam:AttachUserPolicy',
                        'iam:DeactivateMFADevice',
                        'iam:DeleteLoginProfile',
                        'iam:DeleteRolePolicy',
                        'iam:DeleteUserPolicy',
                        'iam:GetLoginProfile',
                        'iam:GetPolicy',
                        'iam:GetRole',
                        'iam:GetRolePolicy',
                        'iam:GetUser',
                        'iam:GetUserPolicy',
                        'iam:ListAccessKeys',
                        'iam:ListAttachedRolePolicies',
                        'iam:ListAttachedUserPolicies',
                        'iam:ListMfaDevices',
                        'iam:ListPolicies',
                        'iam:ListRolePolicies',
                        'iam:ListUserPolicies',
                        'iam:ListVirtualMFADevices',
                        'iam:PutRolePolicy',
                        'iam:PutUserPolicy',
                        'iam:TagMFADevice',
                        'iam:TagPolicy',
                        'iam:TagRole',
                        'iam:TagUser',
                        'iam:UntagMFADevice',
                        'iam:UntagPolicy',
                        'iam:UntagRole',
                        'iam:UntagUser',
                        'iam:UpdateAccessKey',
                        'identitystore:CreateGroupMembership',
                        'identitystore:DeleteGroupMembership',
                        'identitystore:IsMemberInGroups',
                        'identitystore:ListUsers',
                        'identitystore:ListGroups',
                        'identitystore:ListGroupMemberships',
                      ],
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowOrgListAccounts',
                    'Effect': 'Allow',
                    'Action': 'organizations:ListAccounts',
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowSSOContainment',
                    'Effect': 'Allow',
                    'Action':
                      [
                        'sso:CreateAccountAssignment',
                        'sso:DeleteAccountAssignment',
                        'sso:DeleteInlinePolicyFromPermissionSet',
                        'sso:GetInlinePolicyForPermissionSet',
                        'sso:ListAccountAssignments',
                        'sso:ListInstances',
                        'sso:ListPermissionSets',
                        'sso:ListPermissionSetsProvisionedToAccount',
                        'sso:PutInlinePolicyToPermissionSet',
                        'sso:TagResource',
                        'sso:UntagResource',
                      ],
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowSSORead',
                    'Effect': 'Allow',
                    'Action': ['sso-directory:SearchUsers', 'sso-directory:DescribeUser'],
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowS3Read',
                    'Effect': 'Allow',
                    'Action':
                      [
                        's3:GetAccountPublicAccessBlock',
                        's3:GetBucketAcl',
                        's3:GetBucketLocation',
                        's3:GetBucketOwnershipControls',
                        's3:GetBucketPolicy',
                        's3:GetBucketPolicyStatus',
                        's3:GetBucketPublicAccessBlock',
                        's3:GetBucketTagging',
                        's3:GetEncryptionConfiguration',
                        's3:GetObject',
                        's3:GetObjectAcl',
                        's3:GetObjectTagging',
                        's3:GetReplicationConfiguration',
                        's3:ListBucket',
                        's3express:GetBucketPolicy',
                      ],
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowS3Write',
                    'Effect': 'Allow',
                    'Action':
                      [
                        's3:CreateBucket',
                        's3:DeleteBucketPolicy',
                        's3:DeleteObjectTagging',
                        's3:PutAccountPublicAccessBlock',
                        's3:PutBucketACL',
                        's3:PutBucketOwnershipControls',
                        's3:PutBucketPolicy',
                        's3:PutBucketPublicAccessBlock',
                        's3:PutBucketTagging',
                        's3:PutBucketVersioning',
                        's3:PutObject',
                        's3:PutObjectAcl',
                        's3express:CreateSession',
                        's3express:DeleteBucketPolicy',
                        's3express:PutBucketPolicy',
                      ],
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowAutoScalingWrite',
                    'Effect': 'Allow',
                    'Action':
                      [
                        'autoscaling:CreateOrUpdateTags',
                        'autoscaling:DeleteTags',
                        'autoscaling:DescribeAutoScalingGroups',
                        'autoscaling:DescribeAutoScalingInstances',
                        'autoscaling:DescribeTags',
                        'autoscaling:EnterStandby',
                        'autoscaling:ExitStandby',
                        'autoscaling:UpdateAutoScalingGroup',
                      ],
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowEC2Containment',
                    'Effect': 'Allow',
                    'Action':
                      [
                        'ec2:AuthorizeSecurityGroupEgress',
                        'ec2:AuthorizeSecurityGroupIngress',
                        'ec2:CopyImage',
                        'ec2:CreateImage',
                        'ec2:CreateSecurityGroup',
                        'ec2:CreateSnapshot',
                        'ec2:CreateTags',
                        'ec2:DeleteSecurityGroup',
                        'ec2:DeleteTags',
                        'ec2:DescribeImages',
                        'ec2:DescribeInstances',
                        'ec2:DescribeSecurityGroups',
                        'ec2:DescribeSnapshots',
                        'ec2:DescribeTags',
                        'ec2:ModifyNetworkInterfaceAttribute',
                        'ec2:RevokeSecurityGroupEgress',
                      ],
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowKMSActions',
                    'Effect': 'Allow',
                    'Action':
                      [
                        'kms:CreateGrant',
                        'kms:DescribeKey',
                        'kms:GenerateDataKeyWithoutPlaintext',
                        'kms:ReEncryptFrom',
                        'kms:ReEncryptTo',
                      ],
                    'Resource': '*',
                  },
                  {
                    'Sid': 'AllowSSMActions',
                    'Effect': 'Allow',
                    'Action': ['ssm:DescribeAutomationExecutions'],
                    'Resource': '*',
                  },
                ],
            }