M365SPO-003: Default sharing link type
- Plataforma
- Entra ID / M365
- Categoría
- SharePoint & OneDrive Security
- Severidad
- Medium
- Pilar de Zero Trust
- Data (peso 1)
- Fixtures de referencia
- 3
- Cobertura de ramas
- Observada: los fixtures prueban los veredictos que ejercitan
- Procedencia
- baseline
Qué comprueba
The default sharing link type determines the initial permission level when users create sharing links, and a permissive default increases the likelihood of accidental oversharing. If the default is set to 'Anyone' or 'Organization-wide,' users may inadvertently share sensitive documents with a broader audience than intended. Setting the default to 'Specific people' ensures users make a conscious choice about who receives access to shared content.
Valor recomendado
Default sharing link type set to 'Specific people' with 'View' permission level
Remediación
Set the default sharing link type to 'Specific people' in the SharePoint admin center to require users to explicitly specify recipients when sharing. Configure the default link permission to 'View' rather than 'Edit' to enforce a least-privilege approach to shared content. Educate users on the differences between sharing link types and the importance of selecting the most restrictive link type appropriate for their sharing scenario.
Veredictos probados con fixtures
Cada veredicto de esta tabla está probado por un fixture de referencia en la suite de pruebas que valida el módulo. La tabla se deriva de la última ejecución en verde; no puede editarse a mano.
| Escenario | Veredicto esperado |
|---|---|
| clean | PASS |
| known-bad | FAIL |
| no-data | Not Assessed |
Mapeos a marcos de referencia
- CISA SCuBA
- MS.SHAREPOINT.2.1v1, MS.SHAREPOINT.2.2v1, MS.SHAREPOINT.3.2v1
- NIST SP 800-53
- AC-3
- CIS M365 Benchmark
- 7.2.2