CHAIN-089 — Data Lake Gen2 with container-level public access

Summary

Severity: Critical · Likelihood: Medium · Logic: ALL

Why this chain matters

A Data Lake Storage Gen2 account has one container set to Blob public access. Gen2's hierarchical namespace means the entire directory tree under that container is readable anonymously. Enterprises often discover this AFTER the data has been indexed by search engines.

Component rules

This chain fires when its trigger conditions are met by the following rules. Click any rule to see its detection logic and compliance mappings.

Rule ID	Role
zt_data_031	Trigger
zt_data_001	Trigger

Attack walkthrough

Step 1 — Discover the container name via enumeration or search indexing.

Actor: Attacker
MITRE ATT&CK: T1580
Enabled by: zt_data_001

Attacker gain: Reachable ADLS path.

Step 2 — Walk the hierarchical namespace; download entire folder trees.

Actor: Attacker
MITRE ATT&CK: T1530
Enabled by: zt_data_031

Attacker gain: Bulk lake dataset exfil.

Blast radius

Initial access	Anon internet.
Max privilege	Read on the exposed container.
Data at risk	All lake data in container
Services at risk	ADLS Gen2, Downstream analytics consumers

How the logic works

The chain fires only when every rule above has at least one finding in the current scan. Missing any one rule breaks the chain — so remediating any single step disrupts the attack path.