Anchore Enterprise Windows Container Scanning

As of Enterprise 2.3.0, Anchore can analyze and provide vulnerability matches for Windows images. Anchore downloads, unpacks, and analyzes the windows image contents in a similar way, it does Linux-based images, providing OS information as well as discovered application packages like npms, gems, python, NuGet, and java archives.

Vulnerabilities for Windows images are matched against the detected OS version and KBs detected installed in the image. These are matched using data from the Microsoft Security Research Center (MSRC) data API.

Requirements

Analyzing windows images is supported out-of-the-box with no configuration changes, but to get vulnerability results, your deployment must:

1. Deploy an on-premises feed service
2. Have the microsoft driver enabled in the feed service
3. The driver must have an API key configured for accessing Microsoft’s MSRC vulnerability data API
4. The policy engine must have the microsoft feed enabled to be synced from the feed service

Note: Windows image analysis is not yet available for the tech preview Grype vulnerability scanner. It will be added in a future release.

Configuring Microsoft Feeds

In the feed service configuration, enable the msrc driver and provide an api_key.

services:
  feeds:
    ...
    drivers:
      ...
      msrc:
        enabled: true
        api_key: <api key string obtained from signing-up at https://portal.msrc.microsoft.com/en-us/developer>

Getting an API Key

1. Visit: https://portal.msrc.microsoft.com/en-us/developer
2. Create an account or sign-in with GitHub
3. Once logged-in, click ‘Create New Key’
4. You should now see a screen with the title “Microsoft Security Update API”. Directly below that is “API Key”, click “Show” and copy that value into your configuration file. Example:

Enabling the Feed in the Policy Engine

Once the feed service is configured to run the driver and fetch data from Microsoft, the policy engine must also be configured to pull that data from the feed service.

Ensure that your policy engine is using the on-premises feed service by checking the url field in the feeds configuration at the top level of the config.yaml on the policy engine(s). This is typically configured for you in a Helm chart deployment, but for quickstarts with Docker Compose, you’ll have to uncomment some lines to enable the feed service and configure the policy engine to use it. See the Quickstart for details.

feeds:
  ...
  url: <ensure this is set to the URL to reach your deployed feed service>
  selective_sync:
    enabled: true
    feeds:
      ...
      microsoft: true
      ...
  ...

Supported Windows Base Image Versions

The following are the MSRC Product IDs that Anchore can detect and provide vulnerability information for. These provide the basis for the main variants of the base Windows containers: Windows, ServerCore, NanoSerer, and IoTCore

Product ID	Name
10951	Windows 10 Version 1703 for 32-bit Systems
10952	Windows 10 Version 1703 for x64-based Systems
10729	Windows 10 for 32-bit Systems
10735	Windows 10 for x64-based Systems
10789	Windows 10 Version 1511 for 32-bit Systems
10788	Windows 10 Version 1511 for x64-based Systems
10852	Windows 10 Version 1607 for 32-bit Systems
10853	Windows 10 Version 1607 for x64-based Systems
11497	Windows 10 Version 1803 for 32-bit Systems
11498	Windows 10 Version 1803 for x64-based Systems
11563	Windows 10 Version 1803 for ARM64-based Systems
11568	Windows 10 Version 1809 for 32-bit Systems
11569	Windows 10 Version 1809 for x64-based Systems
11570	Windows 10 Version 1809 for ARM64-based Systems
11453	Windows 10 Version 1709 for 32-bit Systems
11454	Windows 10 Version 1709 for x64-based Systems
11583	Windows 10 Version 1709 for ARM64-based Systems
11644	Windows 10 Version 1903 for 32-bit Systems
11645	Windows 10 Version 1903 for x64-based Systems
11646	Windows 10 Version 1903 for ARM64-based Systems
11712	Windows 10 Version 1909 for 32-bit Systems
11713	Windows 10 Version 1909 for x64-based Systems
11714	Windows 10 Version 1909 for ARM64-based Systems
10379	Windows Server 2012 (Server Core installation)
10543	Windows Server 2012 R2 (Server Core installation)
10816	Windows Server 2016
11571	Windows Server 2019
10855	Windows Server 2016 (Server Core installation)
11572	Windows Server 2019 (Server Core installation)
11499	Windows Server, version 1803 (Server Core Installation)
11466	Windows Server, version 1709 (Server Core Installation)
11647	Windows Server, version 1903 (Server Core installation)
11715	Windows Server, version 1909 (Server Core installation)

Windows OS Packages

Just as Linux images are scanned for packages such as RPMs, DPKG, and APK, Windows images are scanned for the installed components and Knowlege Base patches (KBs). When listing OS content on a Windows image, the results returned are KB identifiers that are numeric. Both the name and version will be identical and are the KB IDs.

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