services / Azure / Role definition

An RBAC role definition specifies a named set of allowed/denied actions (permissions) and assignable scopes that can be bound to principals via role assignments.

Role definitions describe the permission sets behind every role; the asset is tenant/subscription-wide access-control policy.

Microsoft.​Authorization/​roleDefinitions/​write

Creating or updating a custom role definition lets an attacker inject arbitrary permissions and assignable scopes, escalating the privileges of every principal bound to that role.

Risks

1. Privilege escalation (CRITICAL)

Scope: CRITICAL

This privilege may grant access to sensitive data from a significant fraction of organizational functions, allow interruption of critical organizational services, or its exploit could lead to significant privilege escalation.

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