Description:

This policy ensures that trust boundaries in VPC endpoint services have connections. This is important to do because it ensures that only authorized users and applications can access your VPC endpoint services.

Rationale:

Having trust boundaries in VPC endpoint services helps to protect your data and resources from unauthorized access. By ensuring that only authorized users and applications can access your VPC endpoint services, you can help to prevent data breaches and other security incidents.

Impact:

If trust boundaries are not in place in VPC endpoint services, then any user or application that can reach the VPC endpoint service will be able to access it. This could allow attackers to access your data or resources, which could have a significant impact on your business.

Default Value:

AWS will recommend that you create trust boundaries in your VPC endpoint services.

Pre-Requisite:

  • You must have access to the AWS Management Console or the AWS CLI.
  • You must have the IAM permissions necessary to manage VPC endpoint services.

Remediation Steps:

To ensure that trust boundaries are in place in your VPC endpoint services, you can follow these steps:

  1. Check the trust settings for your VPC endpoint services.
  2. Make sure that the trust settings only allow authorized users and applications to access the services.
  3. If necessary, you can create new trust relationships for your VPC endpoint services.

Test Plan:

To test whether trust boundaries are in place in your VPC endpoint services, you can follow these steps:

  1. Use the AWS Management Console or the AWS CLI to check the trust settings for your services.
  2. Try to access the services from a user or application that is not authorized to do so.
  3. If you are able to access the services, then you will need to take steps to tighten the trust settings.

Implementation Plan:

To implement this policy, you can follow these steps:

  1. Create new trust relationships for your VPC endpoint services.
  2. Update the trust settings for your existing VPC endpoint services.

AWS CLI Process:

To use the AWS CLI to ensure that trust boundaries are in place in your VPC endpoint services, you can use the following commands:

aws ec2 create-vpc-endpoint --service-name service-name --vpc-id vpc-id --policy file://trust-policy.json

Using AWS GUI:

To use the AWS Management Console to ensure that trust boundaries are in place in your VPC endpoint services, you can follow these steps:

  1. Go to the AWS Management Console and sign in to your account.
  2. Click on the "VPC" service.
  3. Click on the "Endpoints" tab.
  4. Select the VPC endpoint services that you want to update the trust settings for.
  5. Click on the "Trust Relationships" tab.
  6. Update the trust relationships for the services.

Backout Plan:

To back out of this policy, you can follow these steps:

  1. Delete the new trust relationships that you created.
  2. Update the trust settings for your existing VPC endpoint services to allow all users and applications to access them.

Note:

  • This policy does not apply to VPC endpoint services that are not using a custom trust policy.

Reference:

  • AWS VPC documentation: https://docs.aws.amazon.com/vpc/
  • AWS VPC endpoint services documentation: https://docs.aws.amazon.com/vpc/latest/userguide/vpc-endpoints.html

Section 2:

  • Tags: security, trust, boundaries, vpc, endpoint
  • Keywords: vpc, endpoint, trust, boundaries, security