Identity-based policy examples for Amazon Macie

By default, users and roles don't have permission to create or modify Macie resources. They also can't perform tasks by using the AWS Management Console, AWS Command Line Interface (AWS CLI), or AWS API. To grant users permission to perform actions on the resources that they need, an IAM administrator can create IAM policies. The administrator can then add the IAM policies to roles, and users can assume the roles.

To learn how to create an IAM identity-based policy by using these example JSON policy documents, see Creating IAM policies in the IAM User Guide.

For details about actions and resource types defined by Macie, including the format of the ARNs for each of the resource types, see Actions, resources, and condition keys for Amazon Macie in the Service Authorization Reference.

When you create a policy, be sure to resolve security warnings, errors, general warnings, and suggestions from AWS Identity and Access Management Access Analyzer (IAM Access Analyzer) before you save the policy. IAM Access Analyzer runs policy checks to validate a policy against IAM policy grammar and best practices. These checks generate findings and provide actionable recommendations to help you author policies that are functional and conform to security best practices. To learn about validating policies by using IAM Access Analyzer, see IAM Access Analyzer policy validation in the IAM User Guide. To review a list of the warnings, errors, and suggestions that IAM Access Analyzer can return, see IAM Access Analyzer policy check reference in the IAM User Guide.

Policy best practices

Identity-based policies determine whether someone can create, access, or delete Macie resources in your account. These actions can incur costs for your AWS account. When you create or edit identity-based policies, follow these guidelines and recommendations:

• Get started with AWS managed policies and move toward least-privilege permissions – To get started granting permissions to your users and workloads, use the AWS managed policies that grant permissions for many common use cases. They are available in your AWS account. We recommend that you reduce permissions further by defining AWS customer managed policies that are specific to your use cases. For more information, see AWS managed policies or AWS managed policies for job functions in the IAM User Guide.

• Apply least-privilege permissions – When you set permissions with IAM policies, grant only the permissions required to perform a task. You do this by defining the actions that can be taken on specific resources under specific conditions, also known as least-privilege permissions. For more information about using IAM to apply permissions, see Policies and permissions in IAM in the IAM User Guide.

• Use conditions in IAM policies to further restrict access – You can add a condition to your policies to limit access to actions and resources. For example, you can write a policy condition to specify that all requests must be sent using SSL. You can also use conditions to grant access to service actions if they are used through a specific AWS service, such as AWS CloudFormation. For more information, see IAM JSON policy elements: Condition in the IAM User Guide.

• Use IAM Access Analyzer to validate your IAM policies to ensure secure and functional permissions – IAM Access Analyzer validates new and existing policies so that the policies adhere to the IAM policy language (JSON) and IAM best practices. IAM Access Analyzer provides more than 100 policy checks and actionable recommendations to help you author secure and functional policies. For more information, see IAM Access Analyzer policy validation in the IAM User Guide.

• Require multi-factor authentication (MFA) – If you have a scenario that requires IAM users or a root user in your AWS account, turn on MFA for additional security. To require MFA when API operations are called, add MFA conditions to your policies. For more information, see Configuring MFA-protected API access in the IAM User Guide.

For more information about best practices in IAM, see Security best practices in IAM in the IAM User Guide.

Using the Amazon Macie console

To access the Amazon Macie console, you must have a minimum set of permissions. These permissions must allow you to list and view details about the Macie resources in your AWS account. If you create an identity-based policy that is more restrictive than the minimum required permissions, the console won't function as intended for entities (users or roles) with that policy.

You don't need to allow minimum console permissions for users that are making calls only to the AWS CLI or the AWS API. Instead, allow access to only the actions that match the API operation that they're trying to perform.

To ensure that users and roles can use the Amazon Macie console, create IAM policies that provide them with console access. For more information, see Policies and permissions in IAM in the IAM User Guide.

If you create a policy that allows users or roles to use the Amazon Macie console, ensure that the policy allows the macie2:GetMacieSession action. Otherwise, those users or roles won't be able to access any Macie resources or data on the console.

Also ensure that the policy allows the appropriate macie2:List actions for resources that those users or roles need to access on the console. Otherwise, they won't be able to navigate to or display details about those resources on the console. For example, to review the details of a sensitive data discovery job by using the console, a user must be allowed to perform the macie2:DescribeClassificationJob action for the job and the macie2:ListClassificationJobs action. If a user isn't allowed to perform the macie2:ListClassificationJobs action, the user won't be able to display a list of jobs on the Jobs page of the console, and therefore won't be able to choose the job to display its details. For the details to include information about a custom data identifier that the job uses, the user must also be allowed to perform the macie2:BatchGetCustomDataIdentifiers action for the custom data identifier.

Example: Allow users to review their own permissions

This example shows how you might create a policy that allows IAM users to view the inline and managed policies that are attached to their user identity. This policy includes permissions to complete this action on the console or programmatically using the AWS CLI or AWS API.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "ViewOwnUserInfo",
            "Effect": "Allow",
            "Action": [
                "iam:GetUserPolicy",
                "iam:ListGroupsForUser",
                "iam:ListAttachedUserPolicies",
                "iam:ListUserPolicies",
                "iam:GetUser"
            ],
            "Resource": ["arn:aws:iam::*:user/${aws:username}"]
        },
        {
            "Sid": "NavigateInConsole",
            "Effect": "Allow",
            "Action": [
                "iam:GetGroupPolicy",
                "iam:GetPolicyVersion",
                "iam:GetPolicy",
                "iam:ListAttachedGroupPolicies",
                "iam:ListGroupPolicies",
                "iam:ListPolicyVersions",
                "iam:ListPolicies",
                "iam:ListUsers"
            ],
            "Resource": "*"
        }
    ]
}

Example: Allow users to create sensitive data discovery jobs

This example shows how you might create a policy that allows a user to create sensitive data discovery jobs.

In the example, the first statement grants macie2:CreateClassificationJob permissions to the user. These permissions allow the user to create jobs. The statement also grants macie2:DescribeClassificationJob permissions. These permissions allow the user to access the details of existing jobs. Although these permissions aren't required to create jobs, access to these details can help the user create jobs that have unique configuration settings.

The second statement in the example allows the user to create, configure, and review jobs by using the Amazon Macie console. The macie2:ListClassificationJobs permissions allow the user to display existing jobs on the Jobs page of the console. All other permissions in the statement allow the user to configure and create a job by using the Create job pages on the console.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "CreateAndReviewJobs",
            "Effect": "Allow",
            "Action": [
                "macie2:CreateClassificationJob",
                "macie2:DescribeClassificationJob"
            ],
            "Resource": "arn:aws:macie2:*:*:classification-job/*"
        },
        {
            "Sid": "CreateAndReviewJobsOnConsole",
            "Effect": "Allow",
            "Action": [
                "macie2:ListClassificationJobs",
                "macie2:ListAllowLists",
                "macie2:ListCustomDataIdentifiers",
                "macie2:ListManagedDataIdentifiers",
                "macie2:SearchResources",
                "macie2:DescribeBuckets"
            ],
            "Resource": "*"
        }
    ]
}

Example: Allow users to manage a sensitive data discovery job

This example shows how you might create a policy that allows a user to access the details of a particular sensitive data discovery job, the job whose ID is 3ce05dbb7ec5505def334104bexample. The example also allows the user to change the status of the job as necessary.

The first statement in the example grants macie2:DescribeClassificationJob and macie2:UpdateClassificationJob permissions to the user. These permissions allow the user to retrieve the job's details and change the job's status, respectively. The second statement grants macie2:ListClassificationJobs permissions to the user, which allows the user to access the job by using the Jobs page on the Amazon Macie console.

{
   "Version": "2012-10-17",
   "Statement": [
	{
         "Sid": "ManageOneJob",
         "Effect": "Allow",
         "Action": [
            "macie2:DescribeClassificationJob",
            "macie2:UpdateClassificationJob"
         ],
         "Resource": "arn:aws:macie2:*:*:classification-job/3ce05dbb7ec5505def334104bexample"
	},
	{
         "Sid": "ListJobsOnConsole",
         "Effect": "Allow",
         "Action": "macie2:ListClassificationJobs",
         "Resource": "*"
	}
   ]
}

You might also allow the user to access logging data (log events) that Macie publishes to Amazon CloudWatch Logs for the job. To do this, you can add statements that grant permissions to perform CloudWatch Logs (logs) actions on the log group and stream for the job. For example:

"Statement": [
    {
        "Sid": "AccessLogGroupForMacieJobs",
        "Effect": "Allow",
        "Action": [
            "logs:DescribeLogGroups",
            "logs:DescribeLogStreams"
        ],
        "Resource": "arn:aws:logs:*:*:log-group:aws/macie/classificationjobs"
    },
    {
        "Sid": "AccessLogEventsForOneMacieJob",
        "Effect": "Allow",
        "Action": "logs:GetLogEvents",
        "Resource": [
            "arn:aws:logs:*:*:log-group:aws/macie/classificationjobs/*",
            "arn:aws:logs:*:*:log-group:aws/macie/classificationjobs:log-stream:3ce05dbb7ec5505def334104bexample"
        ]
    }
]

For information about managing access to CloudWatch Logs, see Overview of managing access permissions to your CloudWatch Logs resources in the Amazon CloudWatch Logs User Guide.

Example: Allow users to review findings

This example shows how you might create a policy that allows a user to access findings data.

In this example, the macie2:GetFindings and macie2:GetFindingStatistics permissions allow the user to retrieve the data by using the Amazon Macie API or the Amazon Macie console. The macie2:ListFindings permissions allow the user to retrieve and review the data by using the Summary dashboard and the Findings pages on the Amazon Macie console.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "ReviewFindings",
            "Effect": "Allow",
            "Action": [
                "macie2:GetFindings",
                "macie2:GetFindingStatistics",
                "macie2:ListFindings"
            ],
            "Resource": "*"
        }
    ]
}

You might also allow the user to create and manage filter rules and suppression rules for findings. To do this, you might include a statement that grants the following permissions: macie2:CreateFindingsFilter, macie2:GetFindingsFilter, macie2:UpdateFindingsFilter, and macie2:DeleteFindingsFilter. To allow the user to manage the rules by using the Amazon Macie console, also include macie2:ListFindingsFilters permissions in the policy. For example:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "ReviewFindings",
            "Effect": "Allow",
            "Action": [
                "macie2:GetFindings",
                "macie2:GetFindingStatistics",
                "macie2:ListFindings"
            ],
            "Resource": "*"
        },
        {
            "Sid": "ManageRules",
            "Effect": "Allow",
            "Action": [
                "macie2:GetFindingsFilter",
                "macie2:UpdateFindingsFilter",
                "macie2:CreateFindingsFilter",
                "macie2:DeleteFindingsFilter"
            ],
            "Resource": "arn:aws:macie2:*:*:findings-filter/*"
        },
        {
            "Sid": "ListRulesOnConsole",
            "Effect": "Allow",
            "Action": "macie2:ListFindingsFilters",
            "Resource": "*"
        }
    ]
}

Example: Allow users to review custom data identifiers based on tags

In identity-based policies, you can use conditions to control access to Amazon Macie resources based on tags. This example shows how you might create a policy that allows a user to review custom data identifiers by using the Amazon Macie console or the Amazon Macie API. However, permission is granted only if the value for the Owner tag is the user's username.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "ReviewCustomDataIdentifiersIfOwner",
            "Effect": "Allow",
            "Action": "macie2:GetCustomDataIdentifier",
            "Resource": "arn:aws:macie2:*:*:custom-data-identifier/*",
            "Condition": {
                "StringEquals": {"aws:ResourceTag/Owner": "${aws:username}"}
            }
        },
        {
            "Sid": "ListCustomDataIdentifiersOnConsoleIfOwner",
            "Effect": "Allow",
            "Action": "macie2:ListCustomDataIdentifiers",
            "Resource": "*",
            "Condition": {
                "StringEquals": {"aws:ResourceTag/Owner": "${aws:username}"}
            }
        }
    ]
}

In this example, if a user who has the username richard-roe attempts to review the details of a custom data identifier, the custom data identifier must be tagged Owner=richard-roe or owner=richard-roe. Otherwise, the user is denied access. The condition tag key Owner matches both Owner and owner because condition key names aren't case sensitive. For more information, see IAM JSON policy elements: Condition in the IAM User Guide.