CHAIN-119 — App Service without auth + connection string in app settings

Summary

Severity: High · Likelihood: High · Logic: ALL

Why this chain matters

An App Service has Easy Auth disabled and its app settings store database + storage connection strings. An attacker hitting the unauthenticated /api routes can often trigger endpoints that inadvertently expose environment variables (error pages, debug endpoints).

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_wl_002	Trigger
zt_wl_017	Trigger

Attack walkthrough

Step 1 — Probe the unauth API for a stack trace or /env endpoint.

Actor: Attacker
MITRE ATT&CK: T1190
Enabled by: zt_wl_002

Attacker gain: Environment dump.

Step 2 — Extract connection strings; connect directly to backends.

Actor: Attacker
MITRE ATT&CK: T1552.001
Enabled by: zt_wl_017

Attacker gain: Full backend DB / storage access.

Blast radius

Initial access	Unauth endpoint.
Max privilege	Whatever the connection string grants.
Data at risk	Backend datastore
Services at risk	DB / storage backing the app

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.