↳ Source GitHubRègle analytiqueMedium
full_access_as_app Granted To Application
Description
'This detection looks for the full_access_as_app permission being granted to an OAuth application with Admin Consent.
This permission provide access to all Exchange mailboxes via the EWS API can could be exploited to access sensitive data by being added to a compromised application. The application granted this permission should be reviewed to ensure that it is absolutely necessary for the applications function.
Ref: https://learn.microsoft.com/graph/auth-limit-mailbox-access'
- Type de règle
- Scheduled
- Version
- 1.0.2
- Statut déclaré
- Available
- Fréquence
- 1h
- Période analysée
- 1h
- Déclenchement
- gt 0
Couverture MITRE déclarée
Sources déclarées
Métadonnées du fichier source. Aucune dépendance déduite du KQL.
Connecteurs
Types de données
Requête KQL
Requête originale, sans modification.
AuditLogs
| where LoggedByService =~ "Core Directory"
| where Category =~ "ApplicationManagement"
| where OperationName =~ "Consent to application"
| where TargetResources has "full_access_as_app"
| mv-expand TargetResources
| extend OAuthAppName = TargetResources.displayName
| extend ModifiedProperties = TargetResources.modifiedProperties
| mv-apply Property = ModifiedProperties on
(
where Property.displayName =~ "ConsentContext.isAdminConsent"
| extend AdminConsent = tostring(Property.newValue)
)
| mv-apply Property = ModifiedProperties on
(
where Property.displayName =~ "ConsentAction.Permissions"
| extend Permissions = tostring(Property.newValue)
)
| mv-apply Property = ModifiedProperties on
(
where Property.displayName =~ "TargetId.ServicePrincipalNames"
| extend AppId = tostring(Property.newValue)
)
| mv-apply Property = AdditionalDetails on
(
where Property.key =~ "User-Agent"
| extend InitiatingUserAgent = replace('"', '', tostring(Property.value))
)
| project-away Property
| parse Permissions with * "ConsentType: " GrantConsentType ", Scope: " GrantScope1 "," *
| where GrantScope1 =~ "full_access_as_app"
| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
| extend InitiatingIpAddress = tostring(iff(isnotempty(InitiatedBy.user.ipAddress), InitiatedBy.user.ipAddress, InitiatedBy.app.ipAddress))
| project-reorder TimeGenerated, OAuthAppName, AppId, AdminConsent, Permissions, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingAppName, InitiatingAppServicePrincipalId, InitiatingIpAddress, InitiatingUserAgent, GrantScope1, GrantConsentType
| extend GrantInitiatedBy = tostring(iff(isnotempty(InitiatingUserPrincipalName), InitiatingUserPrincipalName, InitiatingAppName))
| extend Name = split(InitiatingUserPrincipalName, "@")[0], UPNSuffix = split(InitiatingUserPrincipalName, "@")[1]
Entités déclarées
Contenus associés
Liens établis à partir des identifiants déclarés et des manifests des solutions.
Traçabilité de la source
GitHubLes valeurs affichées proviennent des fichiers du dépôt Azure/Azure-Sentinel. Elles décrivent le modèle publié, pas la configuration de votre workspace.
- Commit
9800e51↗- Identifiant source
54e22fed-0ec6-4fb2-8312-2a3809a93f63
GSTEP / SUIVI DU CATALOGUE
Ajouté au catalogue : 16 sept. 2026 · 05:49 UTC
Dernier changement observé : 16 sept. 2026 · 05:49 UTC