Why I Got an Access Denied Error When Trying to Pass a Role to Another User in AWS

I recently encountered an error message that said “Because no identity-based policy allows the iam:PassRole action”. This error can be a bit confusing, so I’m going to explain what it means and how to fix it.

First, let’s talk about what an identity-based policy is. An identity-based policy is a type of policy that allows you to control who can access AWS resources. You can use identity-based policies to grant users, groups, or roles permission to perform specific actions on AWS resources.

The iam:PassRole action is an action that allows you to assume a role on behalf of another user. This is useful for tasks that require you to have permissions that you don’t normally have. For example, if you need to access a resource that’s only accessible to users in the Administrator group, you can use the iam:PassRole action to assume the Administrator role on behalf of your current user.

So, what does it mean when you get an error message that says “Because no identity-based policy allows the iam:PassRole action”? It means that you don’t have a policy that allows you to assume the role that you’re trying to assume.

To fix this error, you need to create a policy that allows you to assume the role. You can do this by using the AWS IAM console or the AWS CLI. Once you’ve created the policy, you need to attach it to the user, group, or role that you want to be able to assume the role.

Once you’ve attached the policy, you should be able to assume the role without any problems.

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Why Is a Role-Based Policy Required When No Identity-Based Policy Allows the `iam:PassRole` Action?

I am an IAM administrator who is responsible for managing the permissions of users and roles in my organization. I recently received a request from a developer who wanted to be able to assume a role in another AWS account. I reviewed the developer’s request and determined that the only way to grant them the necessary permissions was to create a role-based policy.

A role-based policy is a type of policy that defines the permissions that are granted to a role. When a user assumes a role, they are granted the permissions that are defined in the role’s policy. In this case, the developer needed to be able to assume a role in another AWS account, so I created a role-based policy that granted them the `iam:PassRole` action.

The `iam:PassRole` action allows a user to assume a role in another AWS account. This is a powerful action, so it is important to use it only when necessary. In this case, the developer needed to be able to assume a role in another AWS account in order to complete a specific task.

I created a role-based policy that granted the developer the `iam:PassRole` action only for the specific role that they needed to assume. This ensures that the developer only has the permissions that they need to complete the task, and it minimizes the risk of them accidentally granting themselves too much access.

Conclusion

a role-based policy is necessary when no identity-based policy allows the `iam:PassRole` action. This is because a role-based policy can be used to grant a user the specific permissions that they need to complete a specific task, while minimizing the risk of them accidentally granting themselves too much access.

My Buying Guides on ‘Because No Identity-Based Policy Allows The Iam:Passrole Action’

Introduction

In this buying guide, I will discuss the issue of “Because No Identity-Based Policy Allows The Iam:Passrole Action”. I will explain what this error means, why it occurs, and how to fix it.

What is the “Because No Identity-Based Policy Allows The Iam:Passrole Action” Error?

The “Because No Identity-Based Policy Allows The Iam:Passrole Action” error occurs when you try to pass a role to a user or group, but there is no identity-based policy that allows the IAM:PassRole action. This error can occur for a variety of reasons, such as:

• The user or group does not have the required permissions to pass a role.
• The role does not have the required permissions to be passed to the user or group.
• The policy that allows the IAM:PassRole action is not attached to the user or group.

Why Does the “Because No Identity-Based Policy Allows The Iam:Passrole Action” Error Occur?

The “Because No Identity-Based Policy Allows The Iam:Passrole Action” error occurs because AWS IAM requires that all users and groups that are allowed to pass a role must have an identity-based policy that explicitly allows the IAM:PassRole action. This is done to prevent users from accidentally passing roles to users or groups that should not have them.

How to Fix the “Because No Identity-Based Policy Allows The Iam:Passrole Action” Error

To fix the “Because No Identity-Based Policy Allows The Iam:Passrole Action” error, you need to create or attach a policy to the user or group that allows the IAM:PassRole action. You can do this using the AWS IAM console or the AWS CLI.

To create a policy using the AWS IAM console, follow these steps:

1. Go to the AWS IAM console.
2. Click on “Policies” in the left-hand navigation bar.
3. Click on “Create Policy”.
4. In the “Policy Name” field, enter a name for the policy.
5. In the “Policy Document” field, paste the following policy:

“`
{
“Version”: “2012-10-17”,
“Statement”: [
{
“Effect”: “Allow”,
“Action”: “iam:PassRole”,
“Resource”: “*”
}
]
}
“`

6. Click on “Create Policy”.

To attach a policy to a user or group using the AWS IAM console, follow these steps:

1. Go to the AWS IAM console.
2. Click on “Users” or “Groups” in the left-hand navigation bar.
3. Select the user or group that you want to attach the policy to.
4. Click on the “Policies” tab.
5. Click on “Attach Policy”.
6. Select the policy that you want to attach.
7. Click on “Attach Policy”.

You can also use the AWS CLI to create and attach policies. To learn more, see the [AWS IAM documentation](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_manage_policies.html).

Conclusion

The “Because No Identity-Based Policy Allows The Iam:Passrole Action” error can be a frustrating one to deal with, but it is usually easy to fix. By following the steps in this guide, you can quickly and easily resolve this error.