Logging IAM and AWS STS API calls with AWS CloudTrail. IAM and AWS STS are integrated with AWS CloudTrail, a service that provides a record of actions taken by an IAM user or role. CloudTrail captures all API calls for IAM and AWS STS as events, including calls from the console and from API calls. If you create a trail, you can enable ... For example, if the they obtained temporary security credentials by assuming a role, this element provides information about the assumed role. If they obtained credentials with root or IAM user credentials to call AWS STS GetFederationToken, the element provides information about the root account or IAM user. This element has the following ... Wildcards are supported at the end of the ARN, e.g., "arn:aws:iam::123456789012:*" will match any IAM principal in the AWS account 123456789012. When resolve_aws_unique_ids is false and you are binding to IAM roles (as opposed to users) and you are not using a wildcard at the end, then you must specify the ARN by omitting any path component ...Aug 6, 2020 · Can you write an s3 bucket policy that will deny access to all principals except a particular IAM role and AWS service role (e.g. billingreports.amazonaws.com).. I have tried using 'Deny' with 'NotPrincipal', but none of the below examples work as I don't think the ability to have multiple types of principals is supported by AWS? Go to IAM. Go to Roles. Choose Create role. When asked to select which service the role is for, select EC2 and choose Next:Permissions . You will change this to AWS Control Tower later. When asked to attach policies, choose AdministratorAccess. Choose Next:Tags. You may see an optional screen titled Add tags.Aug 23, 2022 · Using AWS CLI. Run the list-virtual-MFA-devices command (OSX/Linux/UNIX) using custom query filters to return the ARN of the active virtual MFA device assigned to your AWS root:; aws iam list ... Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsLogging IAM and AWS STS API calls with AWS CloudTrail. IAM and AWS STS are integrated with AWS CloudTrail, a service that provides a record of actions taken by an IAM user or role. CloudTrail captures all API calls for IAM and AWS STS as events, including calls from the console and from API calls. If you create a trail, you can enable ...AWS CLI: aws iam list-virtual-mfa-devices. AWS API: ListVirtualMFADevices. In the response, locate the ARN of the virtual MFA device for the user you are trying to fix. Delete the virtual MFA device. AWS CLI: aws iam delete-virtual-mfa-device. AWS API: DeleteVirtualMFADevice. To allow users to assume the current role again within a role session, specify the role ARN or AWS account ARN as a principal in the role trust policy. AWS services that provide compute resources such as Amazon EC2, Amazon ECS, Amazon EKS, and Lambda provide temporary credentials and automatically rotate these credentials. The following example bucket policy shows how to mix IPv4 and IPv6 address ranges to cover all of your organization's valid IP addresses. The example policy allows access to the example IP addresses 192.0.2.1 and 2001:DB8:1234:5678::1 and denies access to the addresses 203.0.113.1 and 2001:DB8:1234:5678:ABCD::1.The way you sign in to AWS depends on what type of AWS user you are. There are different types of AWS users. You can be an account root user, an IAM user, a user in IAM Identity Center, a federated identity, or use AWS Builder ID. For more information, see User types. You can access AWS by signing in with any of following methods:However, if I add this to another account created, the permissions for that account and any other IAM users in that account are not having permissions anymore. I am confused. here are the docs for Disallow Creation of Access Keys for the Root User. Update. The way I am implementing the policy is through Organizations SCP.aws sts assume-role gives AccessDenied. There is a trust set up between the role and Account1 (requiring MFA) I can assume the role in account 2 in the web console without any problems. I can also do aws s3 ls --profile named-profile successfully. However, if I try to run aws sts assume-role with the role arn, I get an error: Another common action typo is the inclusion of unnecessary text in ARNs, such as arn:aws:s3: : :*, or missing colons in actions, such as iam.CreateUser. You can evaluate a policy that might include typos by choosing Next to review the policy summary and confirm whether the policy provides the permissions you intended.Since I can't use wildcards in the NotPrincipal element, I need the full assumed-role ARN of the Lambda once it assumes the role. UPDATE: I tried using two conditions to deny all requests where the ARN does not match the ARN of the Lambda role or assumed role. The Lambda role is still denied from writing to S3 using the IAM policy simulator.Open the role and edit the trust relationship. Instead of trusting the account, the role must trust the service. For example, update the following Principal element: "Principal": { "AWS": "arn:aws:iam:: 123456789012 :root" } Change the principal to the value for your service, such as IAM. Elastic Load Balancing provides access logs that capture detailed information about requests sent to your load balancer. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses. You can use these access logs to analyze traffic patterns and troubleshoot issues. To allow users to assume the current role again within a role session, specify the role ARN or AWS account ARN as a principal in the role trust policy. AWS services that provide compute resources such as Amazon EC2, Amazon ECS, Amazon EKS, and Lambda provide temporary credentials and automatically rotate these credentials.First, check the credentials or role specified in your application code. Run the following command on the EMR cluster's master node. Replace s3://doc-example-bucket/abc/ with your Amazon S3 path. aws s3 ls s3://doc-example-bucket/abc/. If this command is successful, then the credentials or role specified in your application code are causing the ... All principals More information Specifying a principal You specify a principal in the Principal element of a resource-based policy or in condition keys that support principals. You can specify any of the following principals in a policy: AWS account and root user IAM roles Role sessions IAM users Federated user sessions AWS services All principals In the menu bar in the AWS Cloud9 IDE, do one of the following. Choose Window, Share. Choose Share (located next to the Preferences gear icon). In the Share this environment dialog box, for Invite Members, type one of the following. To invite an IAM user, enter the name of the user. The principal in this key policy statement is the account principal, which is represented by an ARN in this format: arn:aws:iam::account-id:root. The account principal represents the AWS account and its administrators.Another common action typo is the inclusion of unnecessary text in ARNs, such as arn:aws:s3: : :*, or missing colons in actions, such as iam.CreateUser. You can evaluate a policy that might include typos by choosing Next to review the policy summary and confirm whether the policy provides the permissions you intended.You can allow users or roles in a different AWS account to use a KMS key in your account. Cross-account access requires permission in the key policy of the KMS key and in an IAM policy in the external user's account. Cross-account permission is effective only for the following operations: Cryptographic operations.Another common action typo is the inclusion of unnecessary text in ARNs, such as arn:aws:s3: : :*, or missing colons in actions, such as iam.CreateUser. You can evaluate a policy that might include typos by choosing Next to review the policy summary and confirm whether the policy provides the permissions you intended.There are many such parameters. This one happens to give us the account ID, which is crucial for constructing the ARN. Now, the rest is just the creation of an ARN using this account ID. Fn::Join is simply a CloudFormation built-in that allows concatenation of strings.At this year's AWS re:Inforce, session IAM433, AWS Sr. Solutions Architect Matt Luttrell and AWS Sr. Software Engineer for IAM Access Analyzer Dan Peebles delved into some of AWS IAM’s most arcane edge cases – and why they behave as they do. The session took a deep dive into AWS IAM internal evaluation mechanisms never shared before and ...To find the ARN of an IAM role, run the [aws iam get-role][2] command or just go and check it from the IAM service in your account web console UI. An AWS account ID; The string "*" to represent all users; Additionally, review the Principal elements in the policy and check that they're formatted correctly. If the Principal is one user, the ... Jul 6, 2021 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand The AWS secrets engine generates AWS access credentials dynamically based on IAM policies. This generally makes working with AWS IAM easier, since it does not involve clicking in the web UI. Additionally, the process is codified and mapped to internal auth methods (such as LDAP). The AWS IAM credentials are time-based and are automatically ...You can allow users or roles in a different AWS account to use a KMS key in your account. Cross-account access requires permission in the key policy of the KMS key and in an IAM policy in the external user's account. Cross-account permission is effective only for the following operations: Cryptographic operations.Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsOct 9, 2020 · the account principal arn:aws:iam::<your-account-number>:root the user, assumed role or federated user principal In the case of an explicit Allow if you only used the root account principal in a Principal rule in a policy statement, then any user in that account will match the allow and will be given access, since the account principal is ... The aws_iam_role.assume_role resource references the aws_iam_policy_document.assume_role for its assume_role_policy argument, allowing the entities specified in that policy to assume this role. Mar 11, 2022 · Steps to Enable MFA Delete Feature. Create S3 bucket. Make sure you have Root User Account Keys for CLI access. Configure AWS CLI with root account credentials. List and Verify Versioning enabled for the Bucket. List the Virtual MFA Devices for Root Account. Enable MFA Delete on Bucket. Test MFA Delete. The account ID on the AWS console. This is a 12-digit number such as 123456789012 It is used to construct Amazon Resource Names (ARNs). When referring to resources such as an IAM user or a Glacier vault, the account ID distinguishes these resources from those in other AWS accounts. Acceptable value: Account ID. Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsWith IAM identity-based policies, you can specify allowed or denied actions and resources as well as the conditions under which actions are allowed or denied. Security Hub supports specific actions, resources, and condition keys. To learn about all of the elements that you use in a JSON policy, see IAM JSON Policy Elements Reference in the IAM ... Sep 6, 2019 · In my current terraform configuration I am using a static JSON file and importing into terraform using the file function to create an AWS IAM policy. Terraform code: resource "aws_iam_policy" "example" { policy = "${file("policy.json")}" } AWS IAM Policy definition in JSON file (policy.json): It also refers to a full AWS account, not a single IAM user. All users in the account will see the same Canonical ID on the Console. You want to use a Bucket Policy, that's what the JSON you posted here is for. Aug 23, 2021 · In section “AWS account principals” the AWS informs us that when specifying an AWS account, we can use ARN (arn:aws:iam::AWS-account-ID:root), or a shortened form that consists of the AWS: prefix followed by the account ID: KMS and Key Policy. KMS is a managed service for the creation, storage, and management of cryptographic keys. The aws_iam_role.assume_role resource references the aws_iam_policy_document.assume_role for its assume_role_policy argument, allowing the entities specified in that policy to assume this role.Open the role and edit the trust relationship. Instead of trusting the account, the role must trust the service. For example, update the following Principal element: "Principal": { "AWS": "arn:aws:iam:: 123456789012 :root" } Change the principal to the value for your service, such as IAM.In my current terraform configuration I am using a static JSON file and importing into terraform using the file function to create an AWS IAM policy. Terraform code: resource "aws_iam_policy" "example" { policy = "${file("policy.json")}" } AWS IAM Policy definition in JSON file (policy.json):Troubleshooting key access. When authorizing access to a KMS key, AWS KMS evaluates the following: The key policy that is attached to the KMS key. The key policy is always defined in the AWS account and Region that owns the KMS key. All IAM policies that are attached to the user or role making the request.The principal in this key policy statement is the account principal, which is represented by an ARN in this format: arn:aws:iam::account-id:root. The account principal represents the AWS account and its administrators. data "aws_iam_group" "developer-members" { group_name = "developer" } data "aws_iam_group" "admin-members" { group_name = "admin" } locals { k8s_admins = [ for user ...You can allow users from one AWS account to access resources in another AWS account. To do this, create a role that defines who can access it and what permissions it grants to users that switch to it. In this step of the tutorial, you create the role in the Production account and specify the Development account as a trusted entity.Topics Friendly names and paths IAM ARNs Unique identifiers Friendly names and paths When you create a user, a role, a user group, or a policy, or when you upload a server certificate, you give it a friendly name. Examples include Bob, TestApp1, Developers, ManageCredentialsPermissions, or ProdServerCert. AWS CLI: aws iam list-virtual-mfa-devices. AWS API: ListVirtualMFADevices. In the response, locate the ARN of the virtual MFA device for the user you are trying to fix. Delete the virtual MFA device. AWS CLI: aws iam delete-virtual-mfa-device. AWS API: DeleteVirtualMFADevice.Dec 27, 2016 · On the role that you want to assume, for example using the STS Java V2 API (not Node), you need to set a trust relationship. In the trust relationship, specify the user to trust. However, if I add this to another account created, the permissions for that account and any other IAM users in that account are not having permissions anymore. I am confused. here are the docs for Disallow Creation of Access Keys for the Root User. Update. The way I am implementing the policy is through Organizations SCP.It also refers to a full AWS account, not a single IAM user. All users in the account will see the same Canonical ID on the Console. You want to use a Bucket Policy, that's what the JSON you posted here is for. The way you sign in to AWS depends on what type of AWS user you are. There are different types of AWS users. You can be an account root user, an IAM user, a user in IAM Identity Center, a federated identity, or use AWS Builder ID. For more information, see User types. You can access AWS by signing in with any of following methods:Sep 6, 2020 · Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams 1 Answer. Sorted by: 2. Role ARNs always have the form arn:aws:iam:: {account number}:role/ {role name}. If you're creating two roles that reference each other, you should template out the ARNS rather than referencing the resources directly. This avoids a circular reference. You can get your account number like this: data "aws_caller_identity ...VDOM DHTML tml>. What is “root” in AWS IAM? - Quora. Something went wrong. The account ID on the AWS console. This is a 12-digit number such as 123456789012 It is used to construct Amazon Resource Names (ARNs). When referring to resources such as an IAM user or a Glacier vault, the account ID distinguishes these resources from those in other AWS accounts. Acceptable value: Account ID. AWS Identity and Access Management. AWS Identity and Access Management (IAM) is a web service for securely controlling access to AWS services. With IAM, you can centrally manage users, security credentials such as access keys, and permissions that control which AWS resources users and applications can access.At this year's AWS re:Inforce, session IAM433, AWS Sr. Solutions Architect Matt Luttrell and AWS Sr. Software Engineer for IAM Access Analyzer Dan Peebles delved into some of AWS IAM’s most arcane edge cases – and why they behave as they do. The session took a deep dive into AWS IAM internal evaluation mechanisms never shared before and ...Use Amazon EC2, S3, and more— free for a full year. Launch Your First App in Minutes. Learn AWS fundamentals and start building with short step-by-step tutorials. Enable Remote Work & Learning. Support remote employees, students and contact center agents. Amazon Lightsail. Background. This resource represents a snapshot for an AWS root user account. This is largely similar to the AWS.IAM.User resource, but with a few added fields. Being a separate resource type also simplifies and optimizes writing policies which apply only to the root account, a common pattern. When you specify an AWS account, you can use the account ARN (arn:aws:iam::account-ID:root), or a shortened form that consists of the "AWS": prefix followed by the account ID. For example, given an account ID of 123456789012 , you can use either of the following methods to specify that account in the Principal element:Access denied due to a VPC endpoint policy – implicit denial. Check for a missing Allow statement for the action in your Virtual Private Cloud (VPC) endpoint policies. For the following example, the action is codecommit:ListRepositories. Update your VPC endpoint policy by adding the Allow statement. Elastic Load Balancing provides access logs that capture detailed information about requests sent to your load balancer. Each log contains information such as the time the request was received, the client's IP address, latencies, request paths, and server responses. You can use these access logs to analyze traffic patterns and troubleshoot issues. Find your AWS account ID. You can find the AWS account ID using either the AWS Management Console or the AWS Command Line Interface (AWS CLI). In the console, the location of the account ID depends on whether you're signed in as the root user or an IAM user. The account ID is the same whether you're signed in as the root user or an IAM user.For Actions, start typing AssumeRole in the Filter box and then select the check box next to it when it appears. Choose Resources, ensure that Specific is selected and then choose Add ARN. Enter the AWS member account ID number and then enter the name of the role that you previously created in steps 1–8. Choose Add. It represents the account, so yes it us both the account root user (non-IAM) and since IAM users, roles exist under the account this as a Principal will also mean all calls authenticated by the account. This predates the existence of IAM. Many people mistakenly use Principal: “*” which means any AWS authenticated credential in any account ...Open the role and edit the trust relationship. Instead of trusting the account, the role must trust the service. For example, update the following Principal element: "Principal": { "AWS": "arn:aws:iam:: 123456789012 :root" } Change the principal to the value for your service, such as IAM.For example, if the they obtained temporary security credentials by assuming a role, this element provides information about the assumed role. If they obtained credentials with root or IAM user credentials to call AWS STS GetFederationToken, the element provides information about the root account or IAM user. This element has the following ...There are many such parameters. This one happens to give us the account ID, which is crucial for constructing the ARN. Now, the rest is just the creation of an ARN using this account ID. Fn::Join is simply a CloudFormation built-in that allows concatenation of strings.You can allow users or roles in a different AWS account to use a KMS key in your account. Cross-account access requires permission in the key policy of the KMS key and in an IAM policy in the external user's account. Cross-account permission is effective only for the following operations: Cryptographic operations.Jul 6, 2021 · Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand We require an ARN when you need to specify a resource unambiguously across all of AWS, such as in IAM policies, Amazon S3 bucket names, and API calls. In AWS GovCloud (US) Regions, ARNs have an identifier that is different from the one in other standard AWS Regions. For all other standard regions, ARNs begin with: For the AWS GovCloud (US-West ...If you attach the required permissions to the IAM entity, then any principal in the AWS account 111122223333 has root access to the KMS key. Resolution. You can prevent IAM entities from accessing the KMS key and allow the root user account to manage the key. This also prevents the root user account from losing access to the KMS key. You can allow users from one AWS account to access resources in another AWS account. To do this, create a role that defines who can access it and what permissions it grants to users that switch to it. In this step of the tutorial, you create the role in the Production account and specify the Development account as a trusted entity. For example, a principal similar to arn:aws:iam::123456789012:root allows all IAM identities of the account to assume that role. For more information, see Creating a role to delegate permissions to an IAM user .As per the documentation, you will be required to add "sts:GetServiceBearerToken" access in your access policy as well.. The codeartifact:GetAuthorizationToken and sts:GetServiceBearerToken permissions are required to call the GetAuthorizationToken API.Wildcards ahead. All AWS IAM identities (users, groups, roles) and many other AWS resources (e.g. S3 buckets, SNS Topics, etc) rely on IAM policies to define their permissions. It is often necessary (or desirable) to create policies that match to multiple resources, especially when the resource names include a hash or random component that is ...If you create a new alias for your AWS account, the new alias overwrites the previous alias, and the URL containing the previous alias stops working. The account alias must contain only digits, lowercase letters, and hyphens. For more information on limitations on AWS account entities, see IAM and AWS STS quotas.Find your AWS account ID. You can find the AWS account ID using either the AWS Management Console or the AWS Command Line Interface (AWS CLI). In the console, the location of the account ID depends on whether you're signed in as the root user or an IAM user. The account ID is the same whether you're signed in as the root user or an IAM user.Managing organizational units. PDF RSS. You can use organizational units (OUs) to group accounts together to administer as a single unit. This greatly simplifies the management of your accounts. For example, you can attach a policy-based control to an OU, and all accounts within the OU automatically inherit the policy. A policy is an object in AWS that, when associated with an identity or resource, defines their permissions. AWS evaluates these policies when an IAM principal (user or role) makes a request. Permissions in the policies determine whether the request is allowed or denied. Most policies are stored in AWS as JSON documents.It represents the account, so yes it us both the account root user (non-IAM) and since IAM users, roles exist under the account this as a Principal will also mean all calls authenticated by the account. This predates the existence of IAM. Many people mistakenly use Principal: “*” which means any AWS authenticated credential in any account ...In the root account, I have a verified domain identity that I used to create an email identity for transactional emails. Now, I created a new IAM account. I would like to attach a policy to this IAM account that allows it to create a verified email identity using that verified domain identity in the root account.Open the role and edit the trust relationship. Instead of trusting the account, the role must trust the service. For example, update the following Principal element: "Principal": { "AWS": "arn:aws:iam:: 123456789012 :root" } Change the principal to the value for your service, such as IAM.In the root account, I have a verified domain identity that I used to create an email identity for transactional emails. Now, I created a new IAM account. I would like to attach a policy to this IAM account that allows it to create a verified email identity using that verified domain identity in the root account.
We require an ARN when you need to specify a resource unambiguously across all of AWS, such as in IAM policies, Amazon S3 bucket names, and API calls. In AWS GovCloud (US) Regions, ARNs have an identifier that is different from the one in other standard AWS Regions. For all other standard regions, ARNs begin with: For the AWS GovCloud (US-West .... C. and j. clark
In section “AWS account principals” the AWS informs us that when specifying an AWS account, we can use ARN (arn:aws:iam::AWS-account-ID:root), or a shortened form that consists of the AWS: prefix followed by the account ID: KMS and Key Policy. KMS is a managed service for the creation, storage, and management of cryptographic keys.VDOM DHTML tml>. What is “root” in AWS IAM? - Quora. Something went wrong.To allow users to assume the current role again within a role session, specify the role ARN or AWS account ARN as a principal in the role trust policy. AWS services that provide compute resources such as Amazon EC2, Amazon ECS, Amazon EKS, and Lambda provide temporary credentials and automatically rotate these credentials.aws sts assume-role gives AccessDenied. There is a trust set up between the role and Account1 (requiring MFA) I can assume the role in account 2 in the web console without any problems. I can also do aws s3 ls --profile named-profile successfully. However, if I try to run aws sts assume-role with the role arn, I get an error:You can allow users or roles in a different AWS account to use a KMS key in your account. Cross-account access requires permission in the key policy of the KMS key and in an IAM policy in the external user's account. Cross-account permission is effective only for the following operations: Cryptographic operations.The AWS secrets engine generates AWS access credentials dynamically based on IAM policies. This generally makes working with AWS IAM easier, since it does not involve clicking in the web UI. Additionally, the process is codified and mapped to internal auth methods (such as LDAP). The AWS IAM credentials are time-based and are automatically ...Go to IAM. Go to Roles. Choose Create role. When asked to select which service the role is for, select EC2 and choose Next:Permissions . You will change this to AWS Control Tower later. When asked to attach policies, choose AdministratorAccess. Choose Next:Tags. You may see an optional screen titled Add tags. Feb 7, 2018 · Since I can't use wildcards in the NotPrincipal element, I need the full assumed-role ARN of the Lambda once it assumes the role. UPDATE: I tried using two conditions to deny all requests where the ARN does not match the ARN of the Lambda role or assumed role. The Lambda role is still denied from writing to S3 using the IAM policy simulator. Mar 11, 2022 · Steps to Enable MFA Delete Feature. Create S3 bucket. Make sure you have Root User Account Keys for CLI access. Configure AWS CLI with root account credentials. List and Verify Versioning enabled for the Bucket. List the Virtual MFA Devices for Root Account. Enable MFA Delete on Bucket. Test MFA Delete. To use the IAM API to list your uploaded server certificates, send a ListServerCertificates request. The following example shows how to do this with the AWS CLI. aws iam list- server -certificates. When the preceding command is successful, it returns a list that contains metadata about each certificate. It represents the account, so yes it us both the account root user (non-IAM) and since IAM users, roles exist under the account this as a Principal will also mean all calls authenticated by the account. This predates the existence of IAM. Many people mistakenly use Principal: “*” which means any AWS authenticated credential in any account ... If you attach the required permissions to the IAM entity, then any principal in the AWS account 111122223333 has root access to the KMS key. Resolution. You can prevent IAM entities from accessing the KMS key and allow the root user account to manage the key. This also prevents the root user account from losing access to the KMS key. Troubleshooting key access. The key policy that is attached to the KMS key. The key policy is always defined in the AWS account and Region that owns the KMS key. All IAM policies that are attached to the user or role making the request. IAM policies that govern a principal's use of a KMS key are always defined in the principal's AWS account. Logging IAM and AWS STS API calls with AWS CloudTrail. IAM and AWS STS are integrated with AWS CloudTrail, a service that provides a record of actions taken by an IAM user or role. CloudTrail captures all API calls for IAM and AWS STS as events, including calls from the console and from API calls. If you create a trail, you can enable ... The AWS secrets engine generates AWS access credentials dynamically based on IAM policies. This generally makes working with AWS IAM easier, since it does not involve clicking in the web UI. Additionally, the process is codified and mapped to internal auth methods (such as LDAP). The AWS IAM credentials are time-based and are automatically ... Mainly there are four different way to setup the access via cli when cluster was created via IAM role. 1. Setting up the role directly in kubeconfig file.Access denied due to a VPC endpoint policy – implicit denial. Check for a missing Allow statement for the action in your Virtual Private Cloud (VPC) endpoint policies. For the following example, the action is codecommit:ListRepositories. Update your VPC endpoint policy by adding the Allow statement.It is not possible to use wildcard in the trust policy except "Principal" : { "AWS" : "*" }.The reason being when you specify an identity as Principal, you must use the full ARN since IAM translates to the unique ID e.g. AIDAxxx (for IAM user) or AROAxxx (for IAM role). .