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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | 3x 3x 3x 3x 3x 3x 3x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 7x 14x | /* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ import * as core from "@aws-cdk/core"; import * as config from "@aws-cdk/aws-config"; import * as sns from '@aws-cdk/aws-sns'; import * as subs from '@aws-cdk/aws-sns-subscriptions'; import {ConfigRecorder} from "./aws-config-recorder"; import * as iam from '@aws-cdk/aws-iam'; export class SecureRootUser extends core.Construct { constructor(scope: core.Construct, id: string, notificationEmail: string) { super(scope, id); // Build notification topic const secureRootUserConfigTopic = new sns.Topic(this, 'SecureRootUserConfigTopic'); secureRootUserConfigTopic.addSubscription(new subs.EmailSubscription(notificationEmail)); // Enforce MFA const configRecorder = new ConfigRecorder(this, "ConfigRecorder"); const enforceMFARule = new config.ManagedRule(this, "EnableRootMfa", { identifier: "ROOT_ACCOUNT_MFA_ENABLED", maximumExecutionFrequency: config.MaximumExecutionFrequency.TWENTY_FOUR_HOURS, }); // Enforce No root access key const enforceNoAccessKeyRule = new config.ManagedRule( this, "NoRootAccessKey", { identifier: "IAM_ROOT_ACCESS_KEY_CHECK", maximumExecutionFrequency: config.MaximumExecutionFrequency.TWENTY_FOUR_HOURS, } ); // Create role used for auto remediation const autoRemediationRole = new iam.Role(this, 'AutoRemediationRole', { assumedBy: new iam.CompositePrincipal( new iam.ServicePrincipal("events.amazonaws.com"), new iam.ServicePrincipal("ssm.amazonaws.com"), ) }); enforceMFARule.node.addDependency(configRecorder); enforceNoAccessKeyRule.node.addDependency(configRecorder); secureRootUserConfigTopic.grantPublish(autoRemediationRole); // Create remediations by notifying owner const mfaRemediationInstructionMessage = `Your main account (${core.Stack.of(this).account}) root user still not have MFA activated.\n\t1. Go to https://signin.aws.amazon.com/console and sign in using your root account\n\t2. Go to https://console.aws.amazon.com/iam/home#/security_credentials\n\t3. Activate MFA`; this.addNotCompliancyNotificationMechanism(enforceMFARule, autoRemediationRole, secureRootUserConfigTopic, mfaRemediationInstructionMessage); const accessKeyRemediationInstructionMessage = `Your main account (${core.Stack.of(this).account}) root user have static access keys.\n\t1. Go to https://signin.aws.amazon.com/console and sign in using your root account\n\t2. Go to https://console.aws.amazon.com/iam/home#/security_credentials\n\t3. Delete your Access keys`; this.addNotCompliancyNotificationMechanism(enforceNoAccessKeyRule, autoRemediationRole, secureRootUserConfigTopic, accessKeyRemediationInstructionMessage); } private addNotCompliancyNotificationMechanism(enforceMFARule: config.ManagedRule, autoRemediationRole: iam.Role, secureRootUserConfigTopic: sns.Topic, message: string) { new config.CfnRemediationConfiguration(this, `Notification-${enforceMFARule.node.id}`, { configRuleName: enforceMFARule.configRuleName, targetId: "AWS-PublishSNSNotification", targetType: "SSM_DOCUMENT", targetVersion: "1", automatic: true, maximumAutomaticAttempts: 1, retryAttemptSeconds: 60, parameters: { AutomationAssumeRole: { StaticValue: { Values: [ autoRemediationRole.roleArn ] } }, TopicArn: { StaticValue: { Values: [ secureRootUserConfigTopic.topicArn ] } }, Message: { StaticValue: { Values: [ // WARNING: Limited to 256 char message ] } } } }); } } |