Control: 9.8 Ensure that 'Python version' is currently supported (if in use)

Description

Periodically, older versions of Python may be deprecated and no longer supported. Using a supported version of Python for app services is recommended to avoid potential unpatched vulnerabilities.

Deprecated and unsupported versions of programming and scripting languages can present vulnerabilities which may not be addressed or may not be addressable.

Remediation

From Azure Portal

From Azure Home open the Portal Menu in the top left.
Go to App Services.
Click on each App.
Under Settings section, click on Configuration.
Click on the General settings pane and ensure that the Major Version and the Minor Version is set to a currently supported release.

NOTE: No action is required if Python version is set to Off, as Python is not used by your app.

From Azure CLI

To see the list of supported runtimes:

az webapp list-runtimes

To set latest Python version for an existing app, run the following command:

az webapp config set --resource-group <RESOURCE_GROUP_NAME> --name <APP_NAME> [--windows-fx-version "PYTHON|<VERSION>"] [--linux-fx-version "PYTHON|<VERSION>"]

From PowerShell

As of this writing, there is no way to update an existing application's SiteConfig or set a new application's SiteConfig settings during creation via PowerShell.

Default Value

The version of Python is whatever was selected upon App creation.

Usage

Run the control in your terminal:

powerpipe control run azure_compliance.control.cis_v300_9_8

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe control run azure_compliance.control.cis_v300_9_8 --share

SQL

This control uses a named query:

appservice_web_app_latest_python_version