Apple iOS must implement the management setting: Disable Allow MailDrop.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-61933	AIOS-02-090100	SV-76423r1_rule		Medium

Description
MailDrop allows users to send large attachments in up to 5GB in size via iCloud. Storing data with a non-DoD cloud provider may leave the data vulnerable to breach. Disabling non-DoD cloud services mitigates this risk. SFR ID: FMT_SMF_EXT.1.1 #45

STIG	Date
Apple iOS 9 Interim Security Configuration Guide	2015-12-07

Details

Check Text ( C-62815r1_chk )
Review configuration settings to confirm "Allow MailDrop” is disabled. This validation procedure is performed on both the Apple iOS management tool and the Apple 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 Apple iOS management tool, verify "Allow MailDrop" is not checked. 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 Apple iOS management tool containing the restrictions policy. 5. Tap "Accounts". 6. Tap the mail account. 7. Verify "Mail Drop Enabled" is "No". If "Allow MailDrop" is not disabled in the Apple iOS management tool or the restrictions policy on the Apple iOS device from the Apple iOS management tool lists "Mail Drop Enabled" as "Yes", this is a finding.

Check Text ( C-62815r1_chk )

Review configuration settings to confirm "Allow MailDrop” is disabled.

This validation procedure is performed on both the Apple iOS management tool and the Apple 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 Apple iOS management tool, verify "Allow MailDrop" is not checked.

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 Apple iOS management tool containing the restrictions policy.
5. Tap "Accounts".
6. Tap the mail account.
7. Verify "Mail Drop Enabled" is "No".

If "Allow MailDrop" is not disabled in the Apple iOS management tool or the restrictions policy on the Apple iOS device from the Apple iOS management tool lists "Mail Drop Enabled" as "Yes", this is a finding.

Fix Text (F-67851r1_fix)
Configure the Apple iOS configuration profile to disable Allow MailDrop.