Apple iOS/iPadOS 18 must disable the use of voice assistant (Show user-generated content in Siri) unless required to meet Section 508 compliance requirements.

STIG ID: AIOS-18-016200  |  SRG: PP-MDF-993300 |  Severity: low (CAT III)  |  CCI: CCI-000366 |  Vulnerability Id: V-276201

Vulnerability Discussion

The use of voice assistants could expose sensitive DOD data to cloud-based servers during the processing of assistant requests.

SFR ID: FMT_MOF_EXT.1.2 #47

Check

Review configuration settings to confirm Siri is disabled. Exception: Siri is allowed if used to meet Section 508 compliance requirements.

Note: This control may not be configurable by some MDM products when "Allow Siri" is disabled.

This is a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding.

If the iPhone or iPad being reviewed is supervised by the MDM, follow these procedures:

This check procedure is performed on both the device management tool and the iPhone and iPad device.

Note: If an organization has multiple configuration profiles, the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS/iPadOS management tool, verify "Show user-generated content in Siri" or "Allow Siri" is unchecked.

On the iPhone/iPad device:
1. Open the Settings app.
2. Tap "General".
3. Tap "VPN & Device Management".
4. Tap the Configuration Profile from the iOS management tool containing the restrictions policy.
5. Tap "Restrictions".
6. Verify "Show user-generated content in Siri not allowed" or "Siri not allowed" is listed.

If "Show user-generated content in Siri" is not disabled or Siri is not disabled in the management tool and on the Apple device, this is a finding.

Fix

Install a configuration profile to disable "Show user-generated content in Siri" unless required to meet Section 508 compliance requirements. This is a supervised-only control.

Note: This control may not be configurable by some MDM products when "Allow Siri" is disabled.