UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

Apple iOS must not display calendar information while the device is locked.


Overview

Finding ID Version Rule ID IA Controls Severity
V-43221 AIOS-02-000010 SV-55969r1_rule Medium
Description
If the mobile operating system were to display notifications or calendar information on the lock screen, an adversary may be able to gather sensitive data without needing to unlock the device. This adversary may use this gathered intelligence to plan future attacks and possibly a physical attack. By disabling notifications on the lock screen this prevents sensitive data from being displayed openly on the device’s lock screen.
STIG Date
Apple iOS 7 STIG 2014-01-30

Details

Check Text ( C-49248r1_chk )
This check procedure is performed on the iOS Over-the-Air management tool and the iOS device.
Note: If an organization has multiple configuration profiles, then the check procedure must be performed on the relevant configuration profiles applicable to the scope of the review.

In the iOS Over-the-Air management tool, verify "Show Today view in lock screen" is unchecked.
For example, in Apple Configurator:
1. Ask the MDM administrator to open the relevant configuration profile.
2. Display the "Restrictions" payload.
3. Verify "Show Today view in lock screen" is unchecked.

Alternatively, verify the text "allowLockScreenTodayView" appears in the configuration profile (.mobileconfig file).

On the iOS device:
1. Open the Settings app.
2. Tap "Notification Center".
3. Verify that "Today View" is off.

If "Show Today view in lock screen" is checked in the iOS Over-the-Air management tool, "allowLockScreenTodayView" appears in the configuration profile, or "Today View" is toggled to the right and appears green on the iOS device, this is a finding.
Fix Text (F-48808r1_fix)
Configure Apple iOS to disable Notification Center from the device lock screen.

In the iOS Over-the-Air management tool, uncheck "Show Today view in lock screen".

For example, in Apple Configurator, uncheck "Show Today view in lock screen" in the "Restrictions" payload.