AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Calls the AWS Identity and Access Management SimulatePrincipalPolicy API operation.

Syntax

Test-IAMPrincipalPolicy
-ActionName <String[]>
-CallerArn <String>
-ContextEntry <ContextEntry[]>
-PermissionsBoundaryPolicyInputList <String[]>
-PolicyInputList <String[]>
-PolicySourceArn <String>
-ResourceArn <String[]>
-ResourceHandlingOption <String>
-ResourceOwner <String>
-ResourcePolicy <String>
-Marker <String>
-MaxItem <Int32>
-Select <String>
-NoAutoIteration <SwitchParameter>
-ClientConfig <AmazonIdentityManagementServiceConfig>

Description

Simulate how a set of IAM policies attached to an IAM entity works with a list of API operations and Amazon Web Services resources to determine the policies' effective permissions. The entity can be an IAM user, group, or role. If you specify a user, then the simulation also includes all of the policies that are attached to groups that the user belongs to. You can simulate resources that don't exist in your account. You can optionally include a list of one or more additional policies specified as strings to include in the simulation. If you want to simulate only policies specified as strings, use SimulateCustomPolicy instead. You can also optionally include one resource-based policy to be evaluated with each of the resources included in the simulation for IAM users only. The simulation does not perform the API operations; it only checks the authorization to determine if the simulated policies allow or deny the operations. Note: This operation discloses information about the permissions granted to other users. If you do not want users to see other user's permissions, then consider allowing them to use SimulateCustomPolicy instead. Context keys are variables maintained by Amazon Web Services and its services that provide details about the context of an API query request. You can use the Condition element of an IAM policy to evaluate context keys. To get the list of context keys that the policies require for correct simulation, use GetContextKeysForPrincipalPolicy. If the output is long, you can use the MaxItems and Marker parameters to paginate the results. The IAM policy simulator evaluates statements in the identity-based policy and the inputs that you provide during simulation. The policy simulator results can differ from your live Amazon Web Services environment. We recommend that you check your policies against your live Amazon Web Services environment after testing using the policy simulator to confirm that you have the desired results. For more information about using the policy simulator, see Testing IAM policies with the IAM policy simulator in the IAM User Guide.

This cmdlet automatically pages all available results to the pipeline - parameters related to iteration are only needed if you want to manually control the paginated output. To disable autopagination, use -NoAutoIteration.

Parameters

-ActionName <String[]>
A list of names of API operations to evaluate in the simulation. Each operation is evaluated for each resource. Each operation must include the service identifier, such as iam:CreateUser.
Required?True
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesActionNames
-CallerArn <String>
The ARN of the IAM user that you want to specify as the simulated caller of the API operations. If you do not specify a CallerArn, it defaults to the ARN of the user that you specify in PolicySourceArn, if you specified a user. If you include both a PolicySourceArn (for example, arn:aws:iam::123456789012:user/David) and a CallerArn (for example, arn:aws:iam::123456789012:user/Bob), the result is that you simulate calling the API operations as Bob, as if Bob had David's policies.You can specify only the ARN of an IAM user. You cannot specify the ARN of an assumed role, federated user, or a service principal.CallerArn is required if you include a ResourcePolicy and the PolicySourceArn is not the ARN for an IAM user. This is required so that the resource-based policy's Principal element has a value to use in evaluating the policy.For more information about ARNs, see Amazon Resource Names (ARNs) in the Amazon Web Services General Reference.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ClientConfig <AmazonIdentityManagementServiceConfig>
Amazon.PowerShell.Cmdlets.IAM.AmazonIdentityManagementServiceClientCmdlet.ClientConfig
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ContextEntry <ContextEntry[]>
A list of context keys and corresponding values for the simulation to use. Whenever a context key is evaluated in one of the simulated IAM permissions policies, the corresponding value is supplied.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesContextEntries
-Marker <String>
Use this parameter only when paginating results and only after you receive a response indicating that the results are truncated. Set it to the value of the Marker element in the response that you received to indicate where the next call should start.
Note: This parameter is only used if you are manually controlling output pagination of the service API call.
In order to manually control output pagination, use '-Marker $null' for the first call and '-Marker $AWSHistory.LastServiceResponse.Marker' for subsequent calls.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesNextToken
-MaxItem <Int32>
Use this only when paginating results to indicate the maximum number of items you want in the response. If additional items exist beyond the maximum you specify, the IsTruncated response element is true.If you do not include this parameter, the number of items defaults to 100. Note that IAM might return fewer results, even when there are more results available. In that case, the IsTruncated response element returns true, and Marker contains a value to include in the subsequent call that tells the service where to continue from.
Note: In AWSPowerShell and AWSPowerShell.NetCore this parameter is used to limit the total number of items returned by the cmdlet.
In AWS.Tools this parameter is simply passed to the service to specify how many items should be returned by each service call.
Pipe the output of this cmdlet into Select-Object -First to terminate retrieving data pages early and control the number of items returned.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesMaxItems
-NoAutoIteration <SwitchParameter>
By default the cmdlet will auto-iterate and retrieve all results to the pipeline by performing multiple service calls. If set, the cmdlet will retrieve only the next 'page' of results using the value of Marker as the start point.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-PermissionsBoundaryPolicyInputList <String[]>
The IAM permissions boundary policy to simulate. The permissions boundary sets the maximum permissions that the entity can have. You can input only one permissions boundary when you pass a policy to this operation. An IAM entity can only have one permissions boundary in effect at a time. For example, if a permissions boundary is attached to an entity and you pass in a different permissions boundary policy using this parameter, then the new permissions boundary policy is used for the simulation. For more information about permissions boundaries, see Permissions boundaries for IAM entities in the IAM User Guide. The policy input is specified as a string containing the complete, valid JSON text of a permissions boundary policy.The maximum length of the policy document that you can pass in this operation, including whitespace, is listed below. To view the maximum character counts of a managed policy with no whitespaces, see IAM and STS character quotas.The regex pattern used to validate this parameter is a string of characters consisting of the following:
  • Any printable ASCII character ranging from the space character (\u0020) through the end of the ASCII character range
  • The printable characters in the Basic Latin and Latin-1 Supplement character set (through \u00FF)
  • The special characters tab (\u0009), line feed (\u000A), and carriage return (\u000D)
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-PolicyInputList <String[]>
An optional list of additional policy documents to include in the simulation. Each document is specified as a string containing the complete, valid JSON text of an IAM policy.The regex pattern used to validate this parameter is a string of characters consisting of the following:
  • Any printable ASCII character ranging from the space character (\u0020) through the end of the ASCII character range
  • The printable characters in the Basic Latin and Latin-1 Supplement character set (through \u00FF)
  • The special characters tab (\u0009), line feed (\u000A), and carriage return (\u000D)
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-PolicySourceArn <String>
The Amazon Resource Name (ARN) of a user, group, or role whose policies you want to include in the simulation. If you specify a user, group, or role, the simulation includes all policies that are associated with that entity. If you specify a user, the simulation also includes all policies that are attached to any groups the user belongs to.The maximum length of the policy document that you can pass in this operation, including whitespace, is listed below. To view the maximum character counts of a managed policy with no whitespaces, see IAM and STS character quotas.For more information about ARNs, see Amazon Resource Names (ARNs) in the Amazon Web Services General Reference.
Required?True
Position?Named
Accept pipeline input?True (ByPropertyName)
-ResourceArn <String[]>
A list of ARNs of Amazon Web Services resources to include in the simulation. If this parameter is not provided, then the value defaults to * (all resources). Each API in the ActionNames parameter is evaluated for each resource in this list. The simulation determines the access result (allowed or denied) of each combination and reports it in the response. You can simulate resources that don't exist in your account.The simulation does not automatically retrieve policies for the specified resources. If you want to include a resource policy in the simulation, then you must include the policy as a string in the ResourcePolicy parameter.For more information about ARNs, see Amazon Resource Names (ARNs) in the Amazon Web Services General Reference.Simulation of resource-based policies isn't supported for IAM roles.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesResourceArns
-ResourceHandlingOption <String>
Specifies the type of simulation to run. Different API operations that support resource-based policies require different combinations of resources. By specifying the type of simulation to run, you enable the policy simulator to enforce the presence of the required resources to ensure reliable simulation results. If your simulation does not match one of the following scenarios, then you can omit this parameter. The following list shows each of the supported scenario values and the resources that you must define to run the simulation.Each of the Amazon EC2 scenarios requires that you specify instance, image, and security group resources. If your scenario includes an EBS volume, then you must specify that volume as a resource. If the Amazon EC2 scenario includes VPC, then you must supply the network interface resource. If it includes an IP subnet, then you must specify the subnet resource. For more information on the Amazon EC2 scenario options, see Supported platforms in the Amazon EC2 User Guide.
  • EC2-VPC-InstanceStoreinstance, image, security group, network interface
  • EC2-VPC-InstanceStore-Subnetinstance, image, security group, network interface, subnet
  • EC2-VPC-EBSinstance, image, security group, network interface, volume
  • EC2-VPC-EBS-Subnetinstance, image, security group, network interface, subnet, volume
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ResourceOwner <String>
An Amazon Web Services account ID that specifies the owner of any simulated resource that does not identify its owner in the resource ARN. Examples of resource ARNs include an S3 bucket or object. If ResourceOwner is specified, it is also used as the account owner of any ResourcePolicy included in the simulation. If the ResourceOwner parameter is not specified, then the owner of the resources and the resource policy defaults to the account of the identity provided in CallerArn. This parameter is required only if you specify a resource-based policy and account that owns the resource is different from the account that owns the simulated calling user CallerArn.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ResourcePolicy <String>
A resource-based policy to include in the simulation provided as a string. Each resource in the simulation is treated as if it had this policy attached. You can include only one resource-based policy in a simulation.The maximum length of the policy document that you can pass in this operation, including whitespace, is listed below. To view the maximum character counts of a managed policy with no whitespaces, see IAM and STS character quotas.The regex pattern used to validate this parameter is a string of characters consisting of the following:
  • Any printable ASCII character ranging from the space character (\u0020) through the end of the ASCII character range
  • The printable characters in the Basic Latin and Latin-1 Supplement character set (through \u00FF)
  • The special characters tab (\u0009), line feed (\u000A), and carriage return (\u000D)
Simulation of resource-based policies isn't supported for IAM roles.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Select <String>
Use the -Select parameter to control the cmdlet output. The default value is 'EvaluationResults'. Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.IdentityManagement.Model.SimulatePrincipalPolicyResponse). Specifying the name of a property of type Amazon.IdentityManagement.Model.SimulatePrincipalPolicyResponse will result in that property being returned. Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAK
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-EndpointUrl <String>
The endpoint to make the call against.Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-ProfileLocation <String>
Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials.If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAWSProfilesLocation, ProfilesLocation
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesStoredCredentials, AWSProfileName
-Region <Object>
The system name of an AWS region or an AWSRegion instance. This governs the endpoint that will be used when calling service operations. Note that the AWS resources referenced in a call are usually region-specific.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesRegionToCall
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSK, SecretAccessKey
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesST

Outputs

Amazon.IdentityManagement.Model.EvaluationResult or Amazon.IdentityManagement.Model.SimulatePrincipalPolicyResponse
This cmdlet returns a collection of Amazon.IdentityManagement.Model.EvaluationResult objects. The service call response (type Amazon.IdentityManagement.Model.SimulatePrincipalPolicyResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack.
User Guide
Service API Reference
AWS Tools for PowerShell User Guide

Supported Version

AWS Tools for PowerShell: 2.x.y.z