Ensure IAM Policy Should Not Grant Full Access to Service Rule
This rule ensures IAM policies do not grant full access to a service, minimizing security risks.
| Rule | Ensure IAM policy should not grant full access to service |
| Framework | GxP 21 CFR Part 11 |
| Severity | ✔ Critical |
Rule Description:
IAM (Identity and Access Management) defines the policy for granting access to different services and resources within an organization's cloud infrastructure. In the context of GxP (Good Practice) compliance for 21 CFR Part 11, it is crucial to enforce a strict IAM policy to prevent granting full access permissions to sensitive services and resources.
Granting full access to services and resources can introduce security risks, potential data breaches, and non-compliance with GxP regulations. This rule ensures that IAM policies restrict the level of access based on the principle of least privilege, thereby mitigating potential risks and maintaining compliance.
Troubleshooting Steps:
If an IAM policy grants full access to a service for GxP 21 CFR Part 11, the following troubleshooting steps can be taken:
- 1.
Review the IAM policy: Verify the existing IAM policy associated with the service in question. Identify any permissions that grant full access to the service.
- 2.
Identify affected IAM users/roles/groups: Determine which IAM users, roles, or groups have the policy in question applied to them.
- 3.
Assess the potential impact: Evaluate the potential risks associated with granting full access to the service. Consider the sensitivity of the data and resources accessible through the service.
Remediation:
To remediate the IAM policy and ensure it does not grant full access to the service for GxP 21 CFR Part 11, follow these steps:
- 1.
Determine required access levels: Identify the specific permissions necessary for GxP compliance and the tasks users need to perform. Closely collaborate with compliance and security teams to define the minimal required access.
- 2.
Create a customized IAM policy: Based on the required access levels, create a customized IAM policy with the necessary permissions and restrictions. This policy should adhere to the principle of least privilege and align with GxP compliance standards.
- 3.
Apply the new IAM policy: Attach the newly created IAM policy to the appropriate IAM users, roles, or groups. Ensure that only authorized individuals are granted access according to their specific roles and responsibilities.
- 4.
Test access and permissions: Verify that the IAM policy effectively restricts access to only the necessary resources required for GxP compliance. Test the policy by attempting to perform actions beyond the defined permissions to ensure proper enforcement.
- 5.
Monitor and review: Continuously monitor and review the IAM policies to identify any deviations or unauthorized changes. Regularly validate the permissions granted to individuals and refine the policies as necessary to maintain compliance.
CLI Commands:
The following AWS CLI command can be used to create an IAM policy:
aws iam create-policy --policy-name <policy-name> --policy-document file://<policy-document.json>
Replace
<policy-name><policy-document.json>To attach an IAM policy to an IAM user, use the following command:
aws iam attach-user-policy --user-name <user-name> --policy-arn <policy-arn>
Replace
<user-name><policy-arn>Note: Ensure you have the necessary AWS CLI configuration and permissions to execute these commands.
Conclusion:
Enforcing a strict IAM policy that does not grant full access to services for GxP 21 CFR Part 11 is crucial for maintaining security, preventing unauthorized access, and complying with regulatory requirements. Regularly review and update IAM policies to align with organizational needs and changing compliance standards.