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Apple iOS/iPadOS 18 must not allow managed apps to write contacts to unmanaged contacts accounts.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-268045AIOS-18-012300SV-268045r1031225_ruleCCI-000366low
Description
Managed apps have been approved for the handling of DOD sensitive information. Unmanaged apps are provided for productivity and morale purposes but are not approved to handle DOD sensitive information. Examples of unmanaged apps include those for news services, travel guides, maps, and social networking. If a document were to be viewed in a managed app and the user had the ability to open this same document in an unmanaged app, this could lead to the compromise of sensitive DOD data. In some cases, the unmanaged apps are connected to cloud backup or social networks that would permit dissemination of DOD sensitive information to unauthorized individuals. Not allowing data to be opened within unmanaged apps mitigates the risk of compromising sensitive data. SFRID: FMT_SMF.1.1 #42, FDP_ACF_EXT.1.2
STIGDate
Apple iOS/iPadOS 18 Security Technical Implementation Guide2026-05-13

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (8) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-01Configuration Management Program
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
MON-01Continuous Monitoring
1.00
MON-01.7File Integrity Monitoring (FIM)
1.00
CFG-02Secure Baseline Configurations
0.50
CFG-02.7Approved Configuration Deviations
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (100) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-12Session Termination
1.00
AC-16(1)Dynamic Attribute Association
1.00
AC-17(1)Monitoring and Control
1.00
AC-2Account Management
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-24(1)Transmit Access Authorization Information
1.00
AC-25Reference Monitor
1.00

+90 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.4.1
1.00
3.4.2
1.00
CCI1 mapping
CCI-000366
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-09
1.00
PR.PS-01
1.00
PR.DS-10
0.50
PR.PSPlatform Security
0.50
PR.PS-05
0.50

Who does this work

10 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-268045r1031225_chk)

Review configuration settings to confirm "Allow managed apps to write contacts to unmanaged contacts accounts" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the Apple iOS/iPadOS 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 "Allow managed apps to write contacts to unmanaged contacts accounts" is unchecked. On the iPhone and iPad: 1. Open the Settings app. 2. Tap "General". 3. Tap "VPN & Device Management". 4. Tap the Configuration Profile from the iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Allow managed apps to write contacts to unmanaged contacts accounts" is not listed. If "Allow managed apps to write contacts to unmanaged contacts accounts" is checked in the iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad lists "Allow managed apps to write contacts to unmanaged contacts accounts", this is a finding.

Fix Text (F-71872r1030887_fix)

Install a configuration profile to prevent managed apps from writing contacts to unmanaged contacts accounts.