Apple iOS must not display notifications (calendar information) when the device is locked.

From Apple iOS 10 Security Technical Implementation Guide

Part of PP-MDF-201008

Associated with: CCI-000062 CCI-000366

SV-86423r1_rule Apple iOS must not display notifications (calendar information) when the device is locked.

Vulnerability discussion

Many mobile devices display notifications (including calendar information) on the lock screen so users can obtain relevant information in a timely manner without having to frequently unlock the phone to determine if there are new notifications. However, in many cases, these notifications can contain sensitive information. When they are available on the lock screen, an adversary can see them merely by being in close physical proximity to the device. Configuring the MOS to not send notifications to the lock screen mitigates this risk.SFR ID: FMT_SMF_EXT.1.1 #21

Check content

Review configuration settings to confirm "Show Today view in Lock screen" is disabled. This check procedure is performed on both the Apple iOS management tool and the Apple iOS 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 Apple iOS management tool, verify "Show Today view in Lock screen" is unchecked. Alternatively, verify the text "allowLockScreenTodayView" appears in the configuration profile (.mobileconfig file). On the Apple iOS device: 1. Open the Settings app. 2. Tap "General". 3. Tap "Profiles" or "Profiles & Device Management" or "Device Management". 4. Tap the Configuration Profile from the iOS management tool containing the management policy. 5. Verify "Today view on lock screen not allowed" is present. If the "Show Today view in Lock screen" is checked in the Apple iOS management tool, "allowLockScreenTodayView" appears in the configuration profile, or the restrictions policy on the Apple iOS device from the Apple iOS management tool does not list "Today view on lock screen not allowed", this is a finding.

Fix text

Install a configuration profile to disable Notification Center from the device Lock screen.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

Powered by sagemincer