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Microsoft Defender: work without advanced hunting (PLUG-4744) - #163
Customers without advanced hunting on device data (Defender for Endpoint Plan 1, Defender for Business, Defender for Office 365 only), or who grant only some permissions, can't add the Microsoft Defender data source today. Setup fails on the advanced hunting check and the device import (Failed to resolve table or column expression named 'DeviceInfo').
This PR lets each part of the plugin work on its own:
Setup checks and device import are optional. A missing permission or licence shows a warning saying what it affects, instead of blocking setup.
Readable errors. Graph errors are turned into plain guidance: no device data on this licence, missing permission (with the role Graph names), or wrong credentials.
Dashboards grouped by what they need. A new Overview (Secure Score, incidents, alerts) replaces Cockpit and works on any licence. Everything that needs advanced hunting moves to an Advanced Hunting folder.
Alerts data stream. Adds a Service Source column (for example, Office 365 vs Endpoint) and fixes the "New" status filter, which Graph rejected.
Docs and descriptions. Each data stream and the README say which permission and licence it needs.
Version1.0.4 → 1.1.0. Authentication is unchanged.
Held back: vulnerability data without advanced hunting. It needs a second API token, which isn't possible until the platform supports it. The work is in the branch history; reverting b00b609 restores it.
Plugin name: Microsoft Defender (plugins/MicrosoftDefender/v1)
Type of change:
Bug fix
New datastream
Enhancement to existing datastream
Performance improvement
Documentation / metadata / logo
Other (please describe): out-of-the-box dashboards regrouped by capability
🧪 Testing
Tested on the Les Bleus DEV tenant (Defender with 82 devices).
CI validate and deploy pass
Upgrade from 1.0.4 in place: existing data source and custom dashboards keep working without being edited; re-index returns 82 devices
Overview alert tiles and Advanced Hunting dashboards render
Readable error shows on a missing device table; valid hunting queries still return data
Re-check on the latest commit (b00b609) with a fresh data source
App without ThreatHunting.Read.All: hunting check is a warning, setup completes with no devices, Overview and Incidents work
App with only ThreatHunting.Read.All: setup completes, Advanced Hunting dashboards work
Wrong client secret: every check warns and mentions the credentials
⚠️ Breaking changes
Does this PR introduce any breaking changes?
No
Out-of-the-box dashboards change (Cockpit becomes Overview, hunting dashboards move to a folder). Customer-created dashboards are not touched, and no data stream is removed or renamed. One behaviour change: a wrong client secret no longer blocks saving; it shows a warning on every check instead.
📚 Documentation
Documentation updated
No documentation changes needed
✅ Checklist
This PR changes a single plugin only
No secrets or credentials included
Plugin, datastream and UI naming follow SquaredUp guidelines
Tenants without advanced hunting on device data (Defender for Endpoint
Plan 1, Defender for Business, Defender for Office 365 only) and tenants
that grant only some permissions could not add the data source, because
the alerts and advanced hunting validation steps were required and the
device import failed.
- Make every config validation step optional, with messages that name
the missing permission or licence and what stops working
- Mark the device import steps optional so the import still completes
- Replace Cockpit with an Overview dashboard that works on any licence:
Secure Score, active incidents and active alerts
- Move every dashboard that needs advanced hunting into an Advanced
Hunting folder, including a new Threat Detections dashboard built from
the Cockpit hunting tiles
- Add the Service Source column to the Alerts data stream
- Document which permission and licence each capability needs
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB
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Walkthrough
The Microsoft Defender plugin adds vulnerability data access and a Vulnerability Exposure dashboard. It adds Defender for Endpoint authentication, updates permission and device-import configuration, and revises the default Overview and Advanced Hunting dashboards.
Changes: Microsoft Defender plugin
Layer / File(s)
Summary
Authentication and capability configuration plugins/MicrosoftDefender/v1/preRequest.js, plugins/MicrosoftDefender/v1/metadata.json, plugins/MicrosoftDefender/v1/configValidation.json, plugins/MicrosoftDefender/v1/indexDefinitions/default.json, plugins/MicrosoftDefender/v1/dataStreams/alerts.json, plugins/MicrosoftDefender/v1/docs/README.md
The plugin routes Defender for Endpoint requests and obtains cached client-credentials tokens. Permission checks and device-import steps are optional. Validation messages and the README describe permission and licence requirements and their effects. Alert metadata adds the serviceSource label. Plugin metadata changes to version 1.1.0.
Vulnerability exposure stream and dashboard plugins/MicrosoftDefender/v1/dataStreams/validationVulnerabilities.json, plugins/MicrosoftDefender/v1/dataStreams/vulnerabilityExposures.json, plugins/MicrosoftDefender/v1/defaultContent/vulnerabilityExposure.dash.json
The plugin adds a validation stream and a paged vulnerability exposure stream with an optional severity filter. The new dashboard displays CVE and exposure counts, charts, and a table.
Overview dashboard and default manifest plugins/MicrosoftDefender/v1/defaultContent/manifest.json, plugins/MicrosoftDefender/v1/defaultContent/overview.dash.json
The default manifest replaces Cockpit with Overview and adds Vulnerability Exposure. The Overview dashboard displays Secure Score, active incidents, and active alerts.
Dashboards use the Advanced Hunting folder. Threat Detections contains tiles for malware and antivirus, persistence and privilege escalation, application control, and exploits. Devices Health adds a device exposure-state tile, and the Advanced Hunting manifest lists dashboard items.
Sequence Diagram(s)
sequenceDiagram
participant ExposureDashboard
participant VulnerabilityExposures
participant DefenderEndpoint
ExposureDashboard->>VulnerabilityExposures: Request vulnerability records with severity selection
VulnerabilityExposures->>DefenderEndpoint: GET machine vulnerabilities with paging and optional severity filter
DefenderEndpoint->>VulnerabilityExposures: Return vulnerability records
VulnerabilityExposures->>ExposureDashboard: Provide data for dashboard tiles and table
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Merge Risk: Minimal · up to b6587
The change lets Defender data sources authenticate separately for Graph and Defender for Endpoint and work with partial permissions. No concrete defect was established in the reviewed files. The one remaining uncertainty is that the new token host has not been shown to work in the deployed environment. The author's remaining live-tenant checks should cover this before release.
Security architecture risk: Low · up to 1d36d
The update supports partial-capability setups without increasing the application's declared permissions or changing its authentication model. Existing registration guidance can still lead administrators to grant broader access than Defender needs; no PR-specific increase in that exposure was established.
Retained concerns
No architecture-level concerns identified.
Security review details
Security Blast Radius
inferred — If an administrator follows the linked guide's broader permission list and consents directory or SharePoint read access, misuse of that application's credentials can expose tenant data beyond Defender. The relevant scope follows the application's consented grants, not the dashboards selected in the plugin. This grant route already exists in the base documentation.
Security Findings and Attack Paths
observed — Both retained findings concern README line 19 directing administrators to the generic Microsoft 365 registration guide. Supplied verification identifies permissions including Directory.Read.All and Sites.Read.All in that guide. The README's instruction to grant only selected permissions is meaningful counterevidence, but does not explicitly replace the guide's permission list. The findings remain relevant without establishing a PR-introduced authority expansion.
Trust Boundaries and Controls
inferred — Capability validation probes Graph reads or a DeviceInfo hunting query. Making those probes optional relaxes onboarding acceptance, not token issuance or Graph permission enforcement. A missing capability can produce warnings, but the inspected change supplies no mechanism to obtain data without the application's corresponding authority.
Hardening Proposals
proposed — Use Defender-specific registration guidance that explicitly substitutes selected capability permissions for the generic guide's permission list. Include guidance for reviewing and removing unnecessary existing grants while accounting for applications shared with other integrations.
Pre-merge checks: 5
Check name
Status
Explanation
Title check
The title clearly identifies the Microsoft Defender plugin and the main change: support when advanced hunting is unavailable. It is concise and relevant to the broader changeset.
Docstring Coverage
No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…
Linked Issues check
Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check
Check skipped because no linked issues were found for this pull request.
Description check
The pull request description is complete and relevant. It includes the change summary, related issue, plugin details, testing status, breaking-change assessment, documentation status, and checklist. I…
Full details: Docstring Coverage
Explanation
No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 0 functions across 1 files.
Full details: Description check
Explanation
The pull request description is complete and relevant. It includes the change summary, related issue, plugin details, testing status, breaking-change assessment, documentation status, and checklist. It also clearly identifies the remaining untested scenarios and the authentication change.
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plugins/MicrosoftDefender/v1/preRequest.js
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Actionable comments posted: 2
🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @plugins/MicrosoftDefender/v1/docs/README.md:
- Line 19: Clarify the client-credentials guidance that links to “Configuring
App Registration for the Microsoft 365 Plugin”: state that the guide covers the
full Microsoft 365 plugin and readers should grant only the application
permissions listed in the Defender table above.
- Line 64: Update the documentation heading and grouping around
advancedHuntingQuery to distinguish its licence requirement from the device-only
hunting streams, while keeping the device-stream licence guidance scoped to
those streams.
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…ting
Vulnerability data was only reachable through advanced hunting, so
Defender for Business and least-privilege customers could not see it.
The Defender for Endpoint API serves it with Vulnerability.Read.All, but
needs a token for its own audience, separate from the Graph token.
- Add a pre-request script that reroutes "mde/" endpoint paths to the
Defender for Endpoint API and authenticates them with a second client
credentials token, cached in state. Graph requests are untouched.
- Add the unscoped Vulnerability Exposures data stream, with a server
side severity filter
- Add an optional vulnerability management validation step
- Add a Vulnerability Exposure dashboard
- Document the WindowsDefenderATP permission and licence
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB
…ript
Live testing showed every Graph request failing once the pre-request
script was added, with the same credentials that work on 1.0.4. The
script returned early for Graph requests, which likely left the platform
without the request's url and headers.
The script now always runs to the end and issues both tokens itself
(authMode none, the pattern the other script-authenticated plugins use),
which also removes any dependency on whether the built-in OAuth2 header
is added before or after the script.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB
Live testing showed the platform blocks the pre-request script from
fetching login.microsoftonline.com ("not allowed by this data source").
login.microsoft.com is an official Entra ID alias of that authority for
the public cloud, and shares the microsoft.com domain with the Graph
base URL, which is the pattern the Redstor plugin relies on to reach its
token host.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB
…lity errors
Live testing on an upgraded data source found:
- The Alerts stream's "New" status option sent 'newAlert', which Graph
rejects ("not a valid enumeration type constant"), so any tile
filtering on it failed, including the new Overview tiles. The option
now sends 'new', and saved tiles that still send 'newAlert' are mapped
to 'new'.
- Data sources keep the settings they were saved with, so one added on
1.0.4 has no pre-request script and its "mde/" requests reach Graph.
Vulnerability streams now explain how to fix that (save the data
source), and name the missing permission on a 401 or 403.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB
… critical
On a 49-device test tenant, critical and high exposures came to 27,550
rows: four Defender for Endpoint API pages per tile, with seven tiles
loading at once. Tiles took minutes and several failed. Critical alone
is about 3,000 rows, a single page, so every tile now asks for critical
exposures only. The data stream still accepts any severity.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB
…h errors
- Data stream descriptions now name the permission or licence each
stream needs, so users see it in the stream picker before a tile fails.
- Graph streams share an error script that turns common failures into
plain guidance. A missing device table (as reported by a Plan 1
customer: "Failed to resolve table or column expression named
'DeviceInfo'") explains that the licence has no advanced hunting on
device data; a 403 says to grant the missing permission and keeps
Graph's message, which names the role; a 401 points at the
credentials.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB
…ced hunting
The second API token for the Defender for Endpoint API relied on a
pre-request script, which won't be approved until the platform supports
that case. This release goes out without it:
- Remove preRequest.js and restore the built-in OAuth2 configuration
from 1.0.4, so existing data sources need no re-save.
- Remove the Vulnerability Exposures data stream, its validation step
and error script, and the Vulnerability Exposure dashboard.
- Remove the WindowsDefenderATP permission guidance from the README.
Everything else in 1.1.0 stays. Reverting this commit restores the
feature once the platform is ready.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB
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📋 Summary
Customers without advanced hunting on device data (Defender for Endpoint Plan 1, Defender for Business, Defender for Office 365 only), or who grant only some permissions, can't add the Microsoft Defender data source today. Setup fails on the advanced hunting check and the device import (
Failed to resolve table or column expression named 'DeviceInfo').This PR lets each part of the plugin work on its own:
1.0.4→1.1.0. Authentication is unchanged.Held back: vulnerability data without advanced hunting. It needs a second API token, which isn't possible until the platform supports it. The work is in the branch history; reverting
b00b609restores it.🔗 Related issue(s)
🧩 Plugin details
plugins/MicrosoftDefender/v1)🧪 Testing
Tested on the Les Bleus DEV tenant (Defender with 82 devices).
b00b609) with a fresh data sourceThreatHunting.Read.All: hunting check is a warning, setup completes with no devices, Overview and Incidents workThreatHunting.Read.All: setup completes, Advanced Hunting dashboards workDoes this PR introduce any breaking changes?
Out-of-the-box dashboards change (Cockpit becomes Overview, hunting dashboards move to a folder). Customer-created dashboards are not touched, and no data stream is removed or renamed. One behaviour change: a wrong client secret no longer blocks saving; it shows a warning on every check instead.
📚 Documentation
✅ Checklist
🤖 Generated with Claude Code
https://claude.ai/code/session_01M7jt3x4WCc6X5fWJrBDAVB