EIDAUTH-014: Custom Banned Password List Status
- Platform
- Entra ID / M365
- Category
- Entra ID Authentication Methods & MFA
- Severity
- Medium
- Zero Trust pillar
- Identity (weight 1)
- Golden fixtures
- 3
- Branch coverage
- Observed: fixtures prove the verdicts they exercise
- Provenance
- baseline
What it checks
In addition to the global banned password list, organizations should maintain a custom banned password list containing company-specific terms, product names, locations, and other easily guessable variations. Without a custom list, users may choose passwords based on organizational context that attackers can easily guess through targeted attacks. The custom list supports up to 1000 entries and should be regularly updated.
Recommended value
Custom banned password list enabled with organization-specific terms including company name, products, locations, and common variations
Remediation
Navigate to Entra ID > Protection > Authentication methods > Password protection. Enable the custom banned password list and add entries for your organization name, product names, office locations, and commonly used internal terms. Review and update the list quarterly to include new terms and patterns identified in password audits.
Fixture-proven verdicts
Every verdict below is proven by a golden fixture in the module's gating test suite. This table derives from the last green run; it cannot be edited by hand.
| Scenario | Expected verdict |
|---|---|
| clean | PASS |
| known-bad | FAIL |
| throttled | Not Assessed |
Framework mappings
- NIST SP 800-53
- IA-5(1)
- CIS M365 Benchmark
- 5.2.5