Apply overlays to the baseline controls
You can include overlays to the baseline control objectives in the Authorization Package using either addition, subtraction, or a custom action.
Before you begin
Role required: admin
Procedure
- Navigate to All > CAM Workspace.
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To navigate to the Lists page, select the
icon.
- From the Authorization packages in the RMF list, select an authorization package record.
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Select Overlays to Add, Edit, or Remove the overlays to the Authorization Package.
The Authorization Package must be in the Select step to add policies to overlays.
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Select Add to add a policy to the overlay.
The Add overlay pop-up window appears.
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Enter at least two characters in the Policy field to view and select from the list of available policies.
Note:Only policies with the source CAM: Control Overlay, that are in the Published state, and that contain control objectives will appear in the Policy drop-down field.
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Choose one of the following actions to apply the overlay to the Authorization Package.
- Addition: Select addition to add the control objectives from the policy to the baseline controls.Note:All control objectives are added based on their reference ID.
- If a control objective with the same reference ID already exists in the baseline controls, the Behavior will be set to Matching and the Action will be Skip. The skip action will not add any control objectives to the baseline controls from the overlay policy that you selected.
- If the overlay policy contains a control objective with a reference ID that differs from the baseline control, the Behavior will be set to Distinct and the Action will be Create new. The new control objective(s) from the overlay policy is added to the baseline control with the source as Control Overlay.
- Subtraction: Select Subtraction to move control objectives with matching reference IDs between the selected overlay policy and the baseline controls to the Not Applicable Controls state.Note:
- If a control objective with the same reference ID already exists in the baseline controls:
- Behavior is set to Matching
- Action is Move to N/A
These matching control objectives between the selected overlay and the baseline controls will appear in the Not Applicable Controls tab.
In this scenario, the source of the baseline control remains the same. The justification field of baseline control is updated to indicate this change.
You can also manually select control objectives in the Not Applicable Controls tab and use Return to Baseline Control to move them back to the baseline controls in the authorization package.
- If the overlay policy contains a control objective with a reference ID that differs from the baseline control:
- Behavior is set to Distinct
- Action is Skip
The skip action will not move any control objectives to the not applicable state from the baseline controls.
- If a control objective with the same reference ID already exists in the baseline controls:
- Custom Action: Select Custom Action following are the available actions:
- For matching records (the reference ID is same as in the baseline controls and the selected overlay policy):
- Override: Replaces the baseline control objective with the one from the selected overlay policy.
- Move to N/A: Moves the control objective with the matching reference ID to the Not Applicable state.
- Skip: Ignores the matching record; no changes will be made to the Authorization Package from the selected policy.
- For distinct records (reference ID does not exist in baseline controls):
- Create new: Adds the new control objective from the selected overlay policy to the Authorization Package.
- Skip: Ignores the distinct record; it will not be added to the Authorization Package.
- For matching records (the reference ID is same as in the baseline controls and the selected overlay policy):
Note:For existing baseline controls, if the overlay policy contains a Hybrid, Inherited, or Common control objective, the action will be skipped by default. The behavior will also be Hybrid, Inherited, or Common accordingly. - Addition: Select addition to add the control objectives from the policy to the baseline controls.
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Select Edit from the Overlay Controls list view page to modify an overlay available in the list.
Note:Only listed overlays can be edited. The previously selected policy action is applied by default, and you must select a different operation to proceed with the update.
- Click Submit to apply the Addition, Subtraction, or Custom Action operation on the policy.
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Select Add to add a policy to the overlay.