EIDSCA.AF05: Authentication Method - FIDO2 security key - Restricted.
| ID | EIDSCA.AF05 |
| Severity | Medium |
| Suite | EIDSCA |
| Product | Entra ID |
| Feature | Authentication methods |
| Security area | Authentication |
| Resource type | Tenant |
| User impact of fixing | Low |
| Effort to fix | Low |
| Framework controls | nist-800-53-r5:IA-5 Authenticator Management |
| MITRE ATT&CK | T1098.005 |
| Reads from | Microsoft Graph |
What this checks and how to fix it
Section titled “What this checks and how to fix it”You can work with your Security key provider to determine the AAGuids of their devices for allowing or blocking usage.
Test script
Section titled “Test script”https://graph.microsoft.com/beta/policies/authenticationMethodsPolicy/authenticationMethodConfigurations('Fido2').keyRestrictions.aaGuids -notcontains $null -eq 'true'Remediation action
Section titled “Remediation action”Microsoft Learn - Enable passkeys (FIDO2) for your organization: Restricted AAGUIDS
Related links
Section titled “Related links”- Open in Graph Explorer
- fido2AuthenticationMethodConfiguration resource type - Microsoft Graph v1.0 | Microsoft Learn
Mito check, based on EIDSCA. Author: Cloud-Architekt. Open-source licences.
Open-source licences. CIS Benchmark material © Center for Internet Security, Inc.; CISA SCuBA baselines are public domain (CC0).
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