services / Azure / Storage account

An Azure Storage account is a primary production data store holding blobs, files, queues, and tables, with control-plane configuration for networking, encryption, access keys, and custom domains.

Storage accounts back a single organizational function's data; their access keys and SAS tokens are full-control data-plane credentials, making key/SAS-returning operations effectively account-takeover primitives.

Microsoft.​Storage/​storageAccounts/​listServiceSas/​action

Returns a service-level SAS token, a signed credential granting scoped data-plane access to a specific service/container/object that an attacker can reuse directly to reach data.

Risks

1. Cryptographic exfiltration (CRITICAL)
2. Data exfiltration (CRITICAL)
3. Lateral movement (BOOST)

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.

Links