Certificate-based Authentication - Trusted CAs
The question it answers: Which certificate authorities trusted for certificate-based authentication expire soon or have no revocation list?
Certificate-based authentication (smart cards, derived credentials) trusts the certificate authorities uploaded to Entra. When one expires, every user whose certificate chains to it is locked out; without a CRL, revoked certificates keep working.
At a glance
Section titled “At a glance”| Where in the app | Entra ID › Identity Configuration › CBA Certificate Authorities |
| Workload | Entra ID |
| Kind | Findings list · dashboard tile |
| Data | Read from Microsoft 365 when someone first opens it, then kept for the report cache lifetime (Settings > Data & cache, 1 hour unless changed). |
| Licence | No extra licence needed. |
| Report id (API and MCP) | entra.configuration.cba-certificate-authorities |
Columns
Section titled “Columns”| Column | Key | Type |
|---|---|---|
| Severity | Severity | Status |
| Store | Category | Text |
| Certificate authority | Subject | Link |
| Check | Setting | Text |
| Value | Value | Text |
| Finding | Finding | Text |
| CRL | Detail | Text |
| Expires | When | Date |
| Count | Number | Number |
A findings list hides columns that no row fills. Severity is Critical, Serious, Warning, OK or Info; rows rated Critical, Serious or Warning need attention (Working with findings).
What it needs
Section titled “What it needs”Licence: No extra licence needed.
Application permissions on the IntensiveReports app registration (all permissions):
| Permission | API | What it allows | Note |
|---|---|---|---|
Organization.Read.All | Microsoft Graph | Read organization information | |
PublicKeyInfrastructure.Read.All | Microsoft Graph | Read all certificate based authentication configurations |
Data sources it reads
GET /v1.0/organization/{id}/certificateBasedAuthConfigurationGET /beta/directory/publicKeyInfrastructure/certificateBasedAuthConfigurations
Through the API and MCP
Section titled “Through the API and MCP”GET /ir-api/v1/reports/entra.configuration.cba-certificate-authorities?size=100An AI assistant reads it with the MCP tool get_report and the id entra.configuration.cba-certificate-authorities. The client needs the Read grant for Entra ID. See Using the API.