services / Azure / Garnet cluster cached data

Microsoft Garnet is a high-performance, Redis-compatible cache/in-memory data store offered under Microsoft.DocumentDB. These data-plane operations execute Redis-style commands directly against the keyspace, reading, writing, or deleting the values stored in the cluster.

A production cache cluster typically holds operational data for a single organizational function (sessions, counters, cached query results), which can include sensitive content; it is a single-function production data store (HIGH).

Microsoft.​DocumentDB/​garnetClusters/​acl/​get/​read

GET returns the actual stored value for a key, allowing an attacker to read and exfiltrate cached organizational data.

Risks

1. Data exfiltration (CRITICAL)

Scope: HIGH

This privilege may grant access to sensitive data from a single organizational function, or allow interruption of a service supporting a single organizational function.

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