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How do you detect delegated permissions granted for all users in Microsoft Entra ID?

You detect broad delegated permission grants by monitoring consent events and application permissions that apply tenant-wide rather than to a single user or group. Review whether the scope matches the business need, because these grants can let an app access data for many users at once. Remove unnecessary consent and revalidate affected applications.

Broad delegated permission grants are usually tenant-wide consent events, not a normal single-user grant. The practical distinction is whether the app was approved for everyone in the directory, or only for a specific user, group, or narrow business workflow. That scope question is the first filter because “all users” changes the blast radius immediately.

In microsoft entra id, the signals that matter are consent activity, the permissions requested, and whether the resulting grant is broad enough to affect the whole tenant. The most useful place to start is the application consent posture, especially where delegated permissions can be reused across users once a consent grant exists.

For teams that need a structured view of consent, app exposure, and OAuth risk, the Entra ID Applications and Consent Guide is the closest navigation path because it covers consent policies, admin consent workflow, and delegated permissions in the same operational context.

How to confirm the grant is tenant-wide

The key check is whether the consent was granted at the tenant level rather than through a user-specific approval path. Review Entra audit and consent-related events, then confirm whether the application now has permissions that apply across the directory instead of being limited to one identity. If the scope is wider than the stated business need, treat it as over-broad until proven otherwise.

Do not stop at the presence of a consent event. You also need to inspect the permissions attached to the application and whether those permissions are delegated in a way that allows the app to act across many mailboxes, profiles, files, or other user-linked resources. That is what turns a routine integration into a directory-wide access concern.

When the question is whether the grant fits the business purpose, the most relevant control perspective is whether the app’s effective access is right-sized. The Cloud PAM and CIEM Guide is useful here because it frames granted versus used permissions and helps you compare actual access to intended access.

For Entra-specific hardening and privilege context, the Active Directory and Entra ID Hardening Guide helps place consent review alongside broader directory protection, privileged groups, and access control hygiene.

What to do after you find an overly broad delegated permission

Once you identify a grant that applies to all users, remove unnecessary consent and revalidate the application against the actual workflow it is supposed to support. If the app really needs broad access, document the business justification, confirm who owns it, and verify that the permissions are the minimum set required. If it does not need that reach, reduce the scope or remove it entirely.

Broad app consent should also trigger a quick check for persistence and abuse paths. A tenant-wide delegated grant can survive user turnover, so the risk is not just the original approval event, but how long the access remains available after the original need has passed. That is why periodic consent review belongs in the same operational loop as access review.

For environments already managing high-risk app permissions, the Privileged Access Management Guide is a useful companion because it treats excess privilege, just-in-time access, and standing access as the core design problem rather than an afterthought.

When delegated consent appears in the context of suspicious or unexpected app behavior, the operational lesson from Storm-1283 OAuth apps abuse 2023 is that attackers value app consent because it can turn ordinary user trust into durable access without obvious password theft.

Standards & Framework Alignment

This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.

OWASP API Security Top 10 addresses the attack and risk surface, while NIST SP 800-53 Rev 5 and NIST SP 800-63 set the governance and control requirements practitioners need to meet.

Framework Control / Reference Relevance
OWASP API Security Top 10 API2 — Broken Authentication Consent abuse can turn weak app authentication and approval into tenant-wide access.
Recommendation — Validate app authentication paths and revoke any consent that exposes more access than intended.
NIST SP 800-53 Rev 5 AC-6 — Least Privilege Tenant-wide delegated consent is an access scope problem that least privilege directly addresses.
AU-2 — Event Logging Consent events and permission changes must be logged to detect broad delegated grants.
IA-5 — Authenticator Management App consent often rests on credentials or tokens that should be rotated when exposure is suspected.
Recommendation — Apply least privilege to app consent and remove permissions that exceed the business need. Log consent and permission-change events so tenant-wide grants are detectable and reviewable. Rotate app secrets and tokens when broad consent may have exposed durable access.
NIST SP 800-63 IAL — Identity Proofing Admin consent and approval decisions depend on trustworthy identity assurance for approvers.
Recommendation — Require strong identity assurance for anyone approving directory-wide app access.

Practitioner Guidance

What to verify: Confirm whether the grant was issued through user consent, admin consent, or a workflow that intentionally allows directory-wide access. If the approval path does not match the application owner’s explanation, treat the permission set as suspicious until you can reconcile it with a documented business need.

Decision rule: If the app can access data for many users but only a subset is required, narrow or revoke the consent before you spend time tuning alerts. If the app truly needs broad access, keep the grant but require an owner, a review cadence, and an explicit approval trail.

Common mistake: Teams often focus on the app registration and miss the effective permissions already granted to it. The practical check is not “is the app installed,” but “what can this app do across the tenant right now?”

Practitioner takeaway: The right control is scope validation, not just event detection, because broad delegated consent becomes dangerous when the granted access is larger than the use case and remains in place after the need has passed.