IAM Users Should Be in at Least One Group Rule
This rule states that IAM users should be assigned to at least one group for proper access control.
| Rule | IAM users should be in at least one group |
| Framework | NIST Cybersecurity Framework (CSF) v1.1 |
| Severity | ✔ High |
Rule Description:
The rule states that all IAM (Identity and Access Management) users within an organization must be assigned to at least one group that aligns with the NIST Cybersecurity Framework (CSF) version 1. This framework provides guidelines and best practices for managing and securing an organization's information systems and infrastructure.
Rule Implementation:
To implement this rule, follow these steps:
- 1.
Identify the NIST CSF version 1 groups: Determine the groups that have been designated as compliant with the NIST CSF version 1. These groups are specifically created and configured to adhere to the cybersecurity guidelines established by the framework.
- 2.
Review existing IAM users: Examine the list of IAM users within your organization. Identify which users are not currently assigned to any group.
- 3.
Assign users to NIST CSF groups: For users who are not associated with any group, assign them to at least one of the NIST CSF version 1 groups. This ensures that all users are categorized and managed according to the cybersecurity guidelines defined by the framework.
- 4.
Remove users from irrelevant groups: Review existing group memberships for each user and ensure that they are assigned only to relevant NIST CSF version 1 groups. Remove any users from groups that do not align with the framework to maintain compliance.
Troubleshooting Steps:
If you encounter any issues while implementing this rule, consider the following troubleshooting steps:
- 1.
Incorrect group configuration: Verify that the NIST CSF version 1 groups have been correctly configured to adhere to the framework's guidelines. Review the group settings and adjust them if necessary.
- 2.
Lack of available groups: If there are no existing NIST CSF version 1 groups, create new groups and configure them to comply with the framework's requirements. Assign users to these newly created groups.
- 3.
User/group synchronization issues: Validate that the IAM user/group synchronization process is functioning correctly. Check for any errors or discrepancies in the synchronization logs and resolve them accordingly.
- 4.
Incorrect user group assignments: Double-check the group assignments for each IAM user to ensure they are accurately associated with the relevant NIST CSF version 1 groups. Make any necessary adjustments to align users with the appropriate groups.
Example Code:
The following code snippet shows an example of how to assign an IAM user to a group using the AWS Command Line Interface (CLI):
aws iam add-user-to-group --user-name <IAM-USER-NAME> --group-name <GROUP-NAME>
Replace
<IAM-USER-NAME><GROUP-NAME>Repeat this command for each IAM user that needs to be assigned to the appropriate NIST CSF group.
Remediation Steps:
To remediate the issue and ensure compliance with the rule, follow these step-by-step instructions:
- 1.
Identify NIST CSF version 1 compliant groups: Determine the groups that are designated as compliant with the NIST CSF version 1. These groups should already be aligned with the framework's guidelines.
- 2.
Review IAM user list: Check the list of IAM users to identify any users not currently assigned to any group.
- 3.
Assign users to appropriate groups: For each IAM user that is not already a member of a group, assign them to at least one of the NIST CSF version 1 compliant groups. This can be done using the AWS Management Console or the AWS CLI.
- 4.
Remove users from irrelevant groups: Review the group memberships of each IAM user. If any users are assigned to groups that do not align with the NIST CSF version 1, remove them from those groups.
By following these steps, you can ensure that all IAM users are associated with at least one group that adheres to the NIST CSF version 1 cybersecurity framework.