Oliver Kieselbach 6e78291100 fix(backend): reject non-GUID tid before OIDC metadata fetch in auth middleware
Codex review #7 (MEDIUM): AuthenticationMiddleware read the unvalidated
`tid` claim and built a tenant-specific OIDC authority before signature
validation. A garbage tid would drive an outbound metadata fetch to a bogus
authority - a DoS/cost surface on malformed-token floods (not an auth bypass;
signature/audience/issuer are still validated afterward).

- Guard `tid` with Guid.TryParse before constructing the authority; missing/
  non-GUID throws SecurityTokenValidationException -> 401, no fetch. Loss-free:
  every legitimate Entra token (incl. consumer MSA 9188040d-...) has a GUID tid.
- Drop the now-unreachable null -> common/v2.0 fallback.
- Pass context.CancellationToken into GetConfigurationAsync (was None).

Negative cache for invalid/unreachable authorities deferred (LRU already
bounds memory; revisit only if floods observed).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-25 10:33:16 +02:00
2026-06-13 16:10:14 +02:00
2026-06-25 09:30:38 +02:00
2026-03-17 18:24:01 +01:00
2026-03-26 07:02:33 +01:00
2026-05-07 08:51:22 +02:00

Autopilot Monitor

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Advanced monitoring and troubleshooting solution for Windows Autopilot deployments. Gain full visibility into every enrollment session with a detailed event timeline, fleet health dashboards, and session reporting. Define custom analysis rules to automatically detect issues and gather rules to collect targeted evidence. Retrieve diagnostics packages on demand, configure agent settings like auto-reboot behavior and automatic timezone adjustment — all managed centrally from the web dashboard.

Private Preview

Autopilot Monitor is currently running as a Private Preview. Visit autopilotmonitor.com to request access and learn more.

Overview

Autopilot Monitor provides real-time tracking, intelligent diagnostics, and automated troubleshooting for Windows Autopilot enrollment processes. It consists of:

  • Bootstrap Script — PowerShell script deployed via Intune that starts monitoring early in the enrollment process
  • Monitoring Agent — Lightweight .NET application that collects telemetry and evidence during enrollment
  • Backend API — Azure Functions-based ingestion and processing pipeline
  • Web Dashboard — Next.js application for real-time monitoring and fleet analytics

Architecture

For detailed information about the system architecture, components, and data flow, see Architecture Documentation.

Documentation

Full documentation is available at autopilotmonitor.com/docs

License

This project uses a split licensing model:

  • MIT License — Agent (src/Agent/) and Shared library (src/Shared/) — unrestricted use on end-user devices
  • AGPL-3.0 — Backend (src/Backend/), Web Dashboard (src/Web/), and MCP Server (src/McpServer/) — server-side components remain open source

See LICENSE for full details.

S
Description
Windows Autopilot & Intune enrollment monitoring: live session timelines, fleet health, diagnostics, and an MCP server for AI-assisted troubleshooting.
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