IAM User Should Not Have Any Inline or Attached Policies Rule
This rule ensures that IAM users do not have any inline or attached policies, reducing security risks.
| Rule | IAM user should not have any inline or attached policies |
| Framework | NIST Cybersecurity Framework (CSF) v1.1 |
| Severity | ✔ Low |
Rule Description:
The rule ensures that IAM users do not have any inline or attached policies related to the NIST Cybersecurity Framework (CSF) v1. The NIST CSF provides a set of guidelines and best practices for organizations to manage and improve their cybersecurity posture. By prohibiting IAM users from having CSF policies, the organization enforces a consistent security framework and reduces the risk of policy misconfiguration or unauthorized access.
Troubleshooting Steps:
There are no specific troubleshooting steps associated with this rule as it is a preventive measure. However, if any IAM user is found to have CSF policies attached or inline policies, the following steps can be taken:
- 1.
Identify the affected IAM user: Check the IAM user list or logs to identify the user(s) with CSF policies attached or inline policies.
- 2.
Review the policy details: Evaluate the CSF policies attached or inline policies to determine if they are explicitly related to NIST CSF v1.
- 3.
Assess the impact: Determine the potential risk associated with having NIST CSF v1 policies for the IAM user. Evaluate any potential conflicts or violations of organizational policies.
- 4.
Remove the CSF policies: Remove the attached or inline policies related to NIST CSF v1 from the IAM user's permissions.
- 5.
Verify compliance: Validate that the IAM user no longer has any CSF policies attached or inline policies by reviewing the user's permissions.
Necessary Codes:
No specific codes are required for this rule. However, you can leverage AWS CLI or SDKs to automate the remediation process if multiple IAM users are affected. Below are the steps to remediate using AWS CLI:
- 1.
List all IAM users with associated policies:
aws iam list-users - 2.
Identify the IAM user(s) with CSF policies: Review the policies associated with each IAM user from the command output.
- 3.
Detach the CSF policies:
aws iam detach-user-policy --user-name <IAM_USERNAME> --policy-arn <CSF_POLICY_ARN> - 4.
Repeat step 3 for each affected IAM user.
Step-by-Step Guide for Remediation:
Follow the steps below to ensure that IAM users do not have any inline or attached policies for NIST Cybersecurity Framework (CSF) v1:
- 1.
Sign in to the AWS Management Console with the appropriate IAM user credentials.
- 2.
Open the IAM service from the console.
- 3.
Click on "Users" in the left navigation pane to list all IAM users.
- 4.
Identify the IAM user(s) with CSF policies attached or inline policies.
- 5.
Review the policies associated with each IAM user. Look for any policies explicitly related to NIST CSF v1.
- 6.
Make a note of the affected IAM user(s) and their associated policies.
- 7.
Click on the IAM user's name to access the user's details.
- 8.
Navigate to the "Permissions" tab.
- 9.
Under the "Managed policies" section, identify any CSF-related policies and note their names.
- 10.
Click on each policy name and review the policy details to ensure it is NIST CSF v1 related.
- 11.
Back in the IAM user details page, scroll down to the "Inline policies" section.
- 12.
If there are any inline policies listed, click on each policy name to review its details.
- 13.
Verify that none of the managed policies or inline policies are related to NIST CSF v1.
- 14.
To remove a managed policy from the IAM user, click on the checkbox next to the policy name and click the "Detach policy" button.
- 15.
Confirm the detaching action when prompted.
- 16.
Repeat steps 14 and 15 until all CSF-related managed policies are detached.
- 17.
If any inline policies are found, click on the policy name to access its details.
- 18.
Remove the inline policies by clicking the "Delete policy" button.
- 19.
Confirm the deletion action when prompted.
- 20.
Repeat steps 18 and 19 until all CSF-related inline policies are deleted.
- 21.
Verify compliance by reviewing the IAM user's permissions and ensuring no CSF policies are present.
By following these steps, you can enforce the rule and ensure that IAM users do not have any inline or attached policies for NIST Cybersecurity Framework (CSF) v1. This helps maintain a secure and consistent security framework within your organization.