Microsoft Entra ID · Developer & Technical
Authentication Extensibility Password Administrator
Triggers password submit events for custom authentication extensions. Works alongside Authentication Extensibility Administrator to enable password-based custom authentication flows.
Scope: Manage password submit events within custom authentication extension flows
Permissions
- Trigger password submit events for custom authentication extensions
- Invoke custom authentication extension password flows
- Read basic directory information
- Read basic properties on policies
Common use cases
- Custom password validation during sign-in
- External password store integration
- Legacy system password migration flows
- Custom password policy enforcement during authentication
Best practices
- Use only with tested and validated custom extensions
- Ensure password data is never logged or exposed
- Monitor extension invocations for anomalies
- Keep extension endpoints highly available
- Implement rate limiting on password submit endpoints
Security considerations
- Handles password data in authentication flows — treat as highly sensitive
- Compromised extension could intercept passwords
- Extension endpoints must use TLS and be secured
- Should be limited to service accounts or automation identities
- Monitor all password submit event invocations
Common questions
When should I assign the Authentication Extensibility Password Administrator role?
Assign Authentication Extensibility Password Administrator when you need to: Custom password validation during sign-in; External password store integration; Legacy system password migration flows; and Custom password policy enforcement during authentication. It is part of Microsoft Entra ID and should be granted as a least-privilege alternative to broader roles like Global Administrator.
What can someone with the Authentication Extensibility Password Administrator role do?
The Authentication Extensibility Password Administrator role grants permissions including: Trigger password submit events for custom authentication extensions; Invoke custom authentication extension password flows; Read basic directory information; and Read basic properties on policies. See the Permissions section above for the full list.
What are the security risks of the Authentication Extensibility Password Administrator role?
Key considerations when assigning Authentication Extensibility Password Administrator: Handles password data in authentication flows — treat as highly sensitive; Compromised extension could intercept passwords; Extension endpoints must use TLS and be secured; and Should be limited to service accounts or automation identities. Review the Security considerations section before assignment, and pair with Privileged Identity Management (PIM) for just-in-time access where possible.