Least Privilege | Review of User Privileges

“Review of user privileges” under least privilege is a control that fails quietly until an assessor asks one question: “Show me the last time you proved these elevated permissions were still required.” AC-6(7) is explicit: your organization sets the roles/classes and the review frequency, but you must actually perform the reviews and change access when the review shows it is no longer needed ¹.

For a Compliance Officer, CCO, or GRC lead supporting a FedRAMP environment, this is a requirement you operationalize by turning identity and access into an auditable cycle: define what “privilege” means in your environment, who is allowed to grant it, who must re-approve it, and what happens when it’s no longer justified. The practical goal is to prevent inappropriate access from persisting (especially admin, break-glass, service accounts, and powerful application roles) and to make your authorization package and continuous monitoring defensible.

This page gives requirement-level implementation guidance you can hand to IAM, Security Operations, and system owners, with concrete artifacts to collect and common assessor hangups to avoid.

Regulatory text

Requirement (AC-6(7)): “Review the privileges assigned to organization-defined roles or classes of users at an organization-defined frequency to validate the need for such privileges; and reassign or remove privileges if necessary.” ¹

What the operator must do

You must (1) define which roles/classes matter, (2) set a review frequency, (3) perform the review on schedule, and (4) take action when the review finds excess access. The “review” is not a conversation or a dashboard screenshot. It is a decision record tied to specific privileges, with evidence that access was removed or updated when needed.

Plain-English interpretation

• Least privilege is the rule; privilege reviews are the proof. Your access model will drift over time due to projects, incident response, temporary admin grants, tool sprawl, and workforce changes.
• The unit of review is “privileges assigned to roles or classes.” This control is commonly met through role-based access control (RBAC) reviews, group membership reviews, and privileged role entitlement reviews.
• “Organization-defined frequency” is not a free pass. You can pick the cadence, but assessors will expect the cadence to be risk-based and consistently executed, with remediation when issues are found.

Who it applies to (entity and operational context)

This applies to:

• Cloud Service Providers operating a FedRAMP-authorized system and the teams managing identity, access, and authorization within the FedRAMP boundary ¹.
• Federal agencies with responsibilities for implementing and maintaining the authorized baseline in the boundary ¹.

Operationally, it applies anywhere privileged access exists, including:

• Identity providers and directories (roles, groups, conditional access admin roles)
• Cloud platforms (IAM roles/policies, subscriptions/projects, Kubernetes RBAC)
• Operating systems and databases (sudo/admin, DB roles)
• Security tooling (SIEM admin, EDR admin, vulnerability scanner admin)
• CI/CD and secrets systems (pipeline admin, key management admin)
• Applications with powerful internal roles (billing admin, tenant admin, data export roles)
• Third-party administered components where a third party has admin or support access inside your boundary

What you actually need to do (step-by-step)

Step 1: Define scope in a way you can test

Create a written scope statement that answers:

• Which “roles or classes” are reviewed? Examples: “Privileged admins,” “Production DBAs,” “Cloud IAM admins,” “Support engineers with production access,” “Service accounts with write permissions.”
• Which systems are in scope? Tie to the FedRAMP authorization boundary.
• What is a “privilege” in each system? Examples: admin role assignment, group membership, IAM policy attachment, database role grant, “can export data” app permission.

Deliverable: “Privilege Review Scope & Definitions” (1–2 pages) aligned to AC-6(7) ¹.

Step 2: Build a role-to-privilege inventory (the minimum viable list)

For each in-scope system, produce:

• Role/group name
• Privileges conferred (human-readable summary + system-native identifiers)
• Eligible population (who can have it)
• Approval authority (role owner + security/IAM approver where needed)
• Provisioning path (ticket, JIT workflow, PAM, etc.)
• Revocation triggers (termination, transfer, end of project, inactivity, contract end, emergency access expiration)

Tip: If you cannot describe privileges for a role, that role is not controlled. Treat it as a design gap.

Step 3: Set the review frequency and rules (risk-based, documented)

Document:

• Review cadence per role/class (you choose the cadence; document the rationale)
• Reviewers and escalation path
• Sampling rules (if any) and when full-population review is required
• What “validate the need” means (acceptable justifications, required ticket linkage, time-bounded exceptions)

Make the rules enforceable. If “need” can be justified with “just in case,” the review becomes ceremonial.

Step 4: Assign accountable owners (and separate duties where it matters)

Minimum RACI:

• Role owner (business/system owner): attests who should have the role and why
• IAM/Security: validates the privilege is appropriate, checks for toxic combinations, enforces least privilege patterns
• IT/SecOps: executes changes (or automation does), confirms completion
• GRC/Compliance: monitors completion, retains evidence, reports exceptions

Segregation of duties is a frequent assessor focus for privileged roles. If the same person grants, reviews, and approves their own admin access, document compensating controls.

Step 5: Execute the review (produce decisions, not screenshots)

Run the review meeting or workflow and generate an output that includes, per role/class:

• Current members/assignees (or entitlements)
• Decision for each: keep / remove / modify / convert to time-bound access / exception
• Justification for “keep” (ticket, project, on-call rotation, contractual duty)
• Required remediation actions with owners and due dates

Best practice: treat every “remove/modify” as a trackable work item in your ticketing system so you can prove closure.

Step 6: Remove or reassign privileges (and prove it happened)

AC-6(7) explicitly requires action when privileges are unnecessary ¹. Your evidence must show:

• The change request
• The approval (if required)
• The technical change (system log, IAM change record, or access review tool export)
• Closure confirmation

If a privilege cannot be removed due to operational dependency, you need an exception with compensating controls and an expiration.

Step 7: Close the loop with metrics that are audit-friendly (qualitative is fine)

Avoid vanity KPIs that require unsourced statistics. Track items you can prove:

• Which reviews completed on schedule
• Which had findings (excess access)
• Whether remediation closed
• Whether exceptions were documented and time-bounded

Step 8: Align documentation to FedRAMP artifacts

FedRAMP assessors will expect your System Security Plan (SSP) and procedures to reflect how you perform the privilege reviews and where evidence is stored. Use FedRAMP templates to keep descriptions consistent across the package ².

Required evidence and artifacts to retain

Keep evidence that stands on its own without oral explanation:

Governance artifacts

• Privilege review procedure (scope, cadence, roles, decision rules) mapped to AC-6(7) ¹
• Role/privilege inventory ¹
• RACI and role ownership list
• Exception process with expiry and approval requirements

Operational artifacts ¹

• Access review export or report per role/class (date-stamped)
• Reviewer attestations/approvals (workflow approvals or signed records)
• Remediation tickets with closure evidence
• Change logs showing privilege removal/reassignment
• Exception records with compensating controls and expiration
• Meeting notes only if they capture decisions; otherwise keep them out of the evidence package

System evidence sources (examples)

• IAM audit logs (role assignment changes)
• PAM/JIT access grant logs and expiration logs
• Directory group membership change logs
• Cloud provider IAM change history exports

Common exam/audit questions and hangups

Expect assessors to ask:

1. “What roles/classes did you define, and why those?” Have a risk-based scope statement.
2. “Show the last completed review for your most privileged roles.” Provide the package: report + attestation + remediation closure.
3. “How do you know access was removed?” Show technical logs or system-of-record exports, not just a ticket marked done.
4. “What happens when someone changes jobs or a contract ends?” Tie revocation triggers to HR/IT workflows.
5. “How do you handle service accounts and API tokens?” Include non-human identities in the class definitions.
6. “Where is this described in the SSP?” Ensure the narrative and the evidence repository match ².

Frequent implementation mistakes and how to avoid them

Mistake	Why it fails	Fix
Reviewing users but not the privileges tied to roles	AC-6(7) is about privileges assigned to roles/classes, not a generic user list	Start from roles/groups/IAM policies and list the entitlements they grant 1
“Quarterly access review” with no defined scope	“Organization-defined” must be explicit	Write down roles/classes and systems in scope; tie to boundary
Evidence is a screenshot of a dashboard	Screenshots rarely show who approved what and what changed	Export review results + keep workflow approvals + change logs
Findings are documented but privileges stay	The requirement includes removal/reassignment	Track remediation in tickets and retain closure proof 1
Exempting admins because “they’re trusted”	Trust is not a control	Treat privileged roles as highest scrutiny; require explicit justifications
Ignoring third-party access	A third party’s admin access is still privileged access	Include third-party identities/remote support roles in the same review cycle

Enforcement context and risk implications

No public enforcement cases were provided for this requirement in the source catalog, so this page does not cite specific enforcement outcomes.

Operational risk is straightforward: privileges accumulate, and excessive access increases the blast radius of account takeover, insider misuse, and misconfiguration. Authorization risk is also practical: if you cannot evidence completed reviews and resulting privilege changes, you create avoidable findings during FedRAMP assessment and continuous monitoring because AC-6(7) requires both validation and action ¹.

A practical 30/60/90-day execution plan

First 30 days (stand up the minimum viable process)

• Confirm boundary systems in scope for privileged access review.
• Define roles/classes to review (start with privileged and high-impact application roles).
• Draft and approve a privilege review procedure with cadence, reviewers, and decision rules.
• Build the first role/privilege inventory for priority systems.
• Run one pilot review for the top privileged class; open remediation tickets for findings.

By 60 days (make it repeatable and auditable)

• Expand inventory coverage to all in-scope systems.
• Formalize role ownership and reviewer assignments.
• Standardize evidence: exported reports, attestation records, and change logs.
• Add exception workflow with expirations and compensating controls.
• Update SSP/control narratives to reflect the operating process ².

By 90 days (make it resilient under assessment pressure)

• Demonstrate at least one full review cycle end-to-end for each highest-risk role/class.
• Validate remediation closure and exception expirations.
• Add quality checks: completeness of role lists, reviewer independence, and ticket closure proof.
• Automate collection where possible (exports, scheduled reports, and centralized evidence storage).

Tooling note (where Daydream fits)

If you are managing evidence across many systems, Daydream can help you standardize the privilege review procedure, track review completion and remediation, and retain review outputs and approvals as a clean evidence set for assessors. The goal is fewer one-off spreadsheets and fewer “we did it but can’t prove it” moments.

Frequently Asked Questions

What counts as a “role or class of users” for AC-6(7)?

Use groupings that map to real entitlements: admin roles, directory groups, IAM roles, application permission sets, and service account classes. Avoid relying on HR job titles unless they directly map to technical roles.

Do we have to review every individual user?

The requirement targets privileges assigned to roles or classes, so your review should start from roles/groups and confirm membership and entitlements are still justified ¹. In practice, you often review the population holding each privileged role.

How do we pick the review frequency?

AC-6(7) lets you define the cadence, but you must document it and execute it consistently ¹. Set a faster cadence for powerful roles (admins, production data access) and a slower cadence for lower-risk roles, and document the rationale.

What evidence is strongest for assessors?

A dated export of role membership/entitlements, an attestation or approval record by the accountable owner, and change logs showing removal or modification when needed. Tickets alone are weak unless they show closure and the underlying technical change.

How should we handle emergency or break-glass access in the review?

Treat it as its own privileged class with explicit rules: who can hold it, how it’s approved, and how it expires. Include it in the privilege review output and confirm emergency grants are time-bound and cleaned up after use.

Are service accounts and API tokens in scope?

Yes if they carry privileges through roles, policies, or permissions inside the boundary. Define a service account class, identify owners, and review the privileges attached to those identities on the same cadence as other privileged access.

Footnotes

1. NIST Special Publication 800-53 Revision 5

2. FedRAMP documents and templates