Apple iOS/iPadOS 18 Security Technical Implementation Guide

  • Version/Release: V1R1
  • Published: 2024-09-27
  • Released: 2024-10-04
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This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DOD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.
a
Apple iOS/iPadOS 18 must allow the administrator (MDM) to perform the following management function: enable/disable VPN protection across the device and [selection: on a per-app basis, on a per-group of applications processes basis].
AC-17 - Low - CCI-000068 - V-267937 - SV-267937r1031117_rule
RMF Control
AC-17
Severity
Low
CCI
CCI-000068
Version
AIOS-18-001000
Vuln IDs
  • V-267937
Rule IDs
  • SV-267937r1031117_rule
The system administrator must have the capability to configure VPN access to meet organization-specific policies based on mission needs. Otherwise, a user could inadvertently or maliciously set up a VPN and connect to a network that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_SMF.1.1 #3
Checks: C-71861r1030562_chk

Review the list of unmanaged apps installed on the iPhone and iPad and determine if any unmanaged third-party VPN clients are installed. If so, verify the VPN app is not configured with a DOD network (work) VPN profile. This validation procedure is performed on the iOS device only. On the iPhone and iPad: 1. Open the Settings app. 2. Tap "General". 3. Tap the "VPN and Device Management" line and determine if any "Personal VPN" exists. 4. If not, the requirement has been met. 5. If there are personal VPNs, open each VPN app. Review the list of VPN profiles configured on the VPN client. 6. Verify no DOD network VPN profiles are configured on the VPN client. If any third-party unmanaged VPN apps are installed (personal VPN) and they have a DOD network VPN profile configured on the client, this is a finding. Note: This setting cannot be managed by the MDM administrator and is a User-Based Enforcement (UBE) requirement.

Fix: F-71764r1030563_fix

If a third-party unmanaged VPN app is installed on the iOS 18 device, do not configure the VPN app with a DOD network VPN profile.

b
Apple iOS/iPadOS 18 must not allow backup to remote systems (iCloud).
SC-4 - Medium - CCI-001090 - V-267958 - SV-267958r1031138_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-003000
Vuln IDs
  • V-267958
Rule IDs
  • SV-267958r1031138_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_MOF_EXT.1.2 #40
Checks: C-71882r1030625_chk

Note: This requirement is not applicable if the authorizing official (AO) has approved users' full access to the Apple App Store for downloading unmanaged (personal) apps and syncing personal data on the device with personal cloud data storage accounts. The site must have an AO-signed document showing the AO has assumed the risk for users' full access to the Apple App Store. Review configuration settings to confirm iCloud Backup is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow iCloud backup" is unchecked. Alternatively, verify the text "<key>allowCloudBackup</key> <false/>" appears in the configuration profile (.mobileconfig file). 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 management tool containing the policy. 5. Tap "Restrictions". 6. Verify "iCloud backup not allowed". If "Allow iCloud backup" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudBackup</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "iCloud backup not allowed", this is a finding.

Fix: F-71785r1030626_fix

Install a configuration profile to disable iCloud backup.

b
Apple iOS/iPadOS 18 must not allow backup to remote systems (iCloud document and data synchronization).
SC-4 - Medium - CCI-001090 - V-267959 - SV-267959r1031139_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-003200
Vuln IDs
  • V-267959
Rule IDs
  • SV-267959r1031139_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_MOF_EXT.1.2 #40
Checks: C-71883r1030628_chk

Note: This requirement is not applicable if the authorizing official (AO) has approved users' full access to the Apple App Store for downloading unmanaged (personal) apps and syncing personal data on the device with personal cloud data storage accounts. The site must have an AO-signed document showing the AO has assumed the risk for users' full access to the Apple App Store. 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, review configuration settings to confirm "Allow iCloud documents & data" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow iCloud documents & data" is unchecked. Alternatively, verify the text "<key>allowCloudDocumentSync</key> <false/>" appears in the configuration profile (.mobileconfig file). 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 management tool containing the policy. 5. Tap "Restrictions". 6. Verify "Documents in the Cloud not allowed" is listed. Note: This also verifies that iCloud Drive and iCloud Photo Library are disabled. If "Allow iCloud documents & data" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudDocumentSync</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Documents in the Cloud not allowed", this is a finding.

Fix: F-71786r1030629_fix

Install a configuration profile to disable iCloud documents and data. This a supervised-only control.

b
Apple iOS/iPadOS 18 must not allow backup to remote systems (iCloud Keychain).
SC-4 - Medium - CCI-001090 - V-267960 - SV-267960r1031140_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-003300
Vuln IDs
  • V-267960
Rule IDs
  • SV-267960r1031140_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_MOF_EXT.1.2 #40
Checks: C-71884r1030631_chk

Note: This requirement is not applicable if the authorizing official (AO) has approved users' full access to the Apple App Store for downloading unmanaged (personal) apps and syncing personal data on the device with personal cloud data storage accounts. The site must have an AO-signed document showing the AO has assumed the risk for users' full access to the Apple App Store. 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, review configuration settings to confirm iCloud keychain is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow iCloud keychain" is unchecked. Alternatively, verify the text "<key>allowCloudKeychainSync</key><false/>" appears in the configuration profile (.mobileconfig file). 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 management tool containing the management policy. 5. Verify "iCloud Keychain not allowed" is listed. If "Allow iCloud keychain" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudKeychainSync</key><true/>" appears in the configuration profile, or "iCloud Keychain not allowed" is not listed on the iPhone and iPad, this is a finding.

Fix: F-71787r1030632_fix

Install a configuration profile to disable iCloud keychain. This a supervised-only control.

b
Apple iOS/iPadOS 18 must not allow backup to remote systems (Cloud Photo Library).
SC-4 - Medium - CCI-001090 - V-267961 - SV-267961r1031141_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-003450
Vuln IDs
  • V-267961
Rule IDs
  • SV-267961r1031141_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_MOF_EXT.1.2 #40
Checks: C-71885r1030634_chk

Note: This requirement is not applicable if the authorizing official (AO) has approved users' full access to the Apple App Store for downloading unmanaged (personal) apps and syncing personal data on the device with personal cloud data storage accounts. The site must have an AO-signed document showing the AO has assumed the risk for users' full access to the Apple App Store. 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, review configuration settings to confirm "Allow Cloud Photo Library" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow Cloud Photo Library" is unchecked. Alternatively, verify the text "<key>allowCloudPhotoLibrary</key><false/>" appears in the configuration profile (.mobileconfig file). 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "iCloud Photos not allowed" is listed. If "Allow Cloud Photo Library" is checked in the Apple iOS/iPadOS management tool, "<key>allowCloudPhotoLibrary</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "iCloud Photos not allowed", this is a finding.

Fix: F-71788r1030635_fix

Install a configuration profile to disable Cloud Photo Library. This a supervised-only control.

b
Apple iOS/iPadOS 18 must not allow backup to remote systems (iCloud Photo Sharing, also known as Shared Stream or Shared Photo Stream).
SC-4 - Medium - CCI-001090 - V-267962 - SV-267962r1031142_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-003500
Vuln IDs
  • V-267962
Rule IDs
  • SV-267962r1031142_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_MOF_EXT.1.2 #40
Checks: C-71886r1030637_chk

Note: This requirement is not applicable if the authorizing official (AO) has approved users' full access to the Apple App Store for downloading unmanaged (personal) apps and syncing personal data on the device with personal cloud data storage accounts. The site must have an AO-signed document showing the AO has assumed the risk for users' full access to the Apple App Store. 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, review configuration settings to confirm "Allow Shared Stream" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow Shared Stream" is unchecked. Alternatively, verify the text "<key>allowSharedStream</key><false/>" appears in the configuration profile (.mobileconfig file). 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Shared Streams not allowed" is listed. If "AllowShared Photo Stream" is checked in the Apple iOS/iPadOS management tool, "<key>allowSharedStream</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Shared Streams not allowed", this is a finding. This requirement will become "Supervised only" in a future iOS/iPadOS release.

Fix: F-71789r1030638_fix

Install a configuration profile to disable "Allow Shared PhotoStream". This a supervised-only control.

b
Apple iOS/iPadOS 18 must not allow backup to remote systems (managed applications data stored in iCloud).
SC-4 - Medium - CCI-001090 - V-267963 - SV-267963r1031143_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-003600
Vuln IDs
  • V-267963
Rule IDs
  • SV-267963r1031143_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_MOF_EXT.1.2 #40
Checks: C-71887r1030640_chk

Review configuration settings to confirm "Allow managed apps to store data in iCloud" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow managed apps to store data in iCloud" is unchecked. Alternatively, verify the text "<key>allowManagedAppsCloudSync</key> <false/>" appears in the configuration profile (.mobileconfig file). 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Managed apps cloud sync not allowed" is listed. If "Allow managed apps to store data in iCloud" is checked in the Apple iOS/iPadOS management tool, "<key>allowManagedAppsCloudSync</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Managed apps cloud sync not allowed", this is a finding.

Fix: F-71790r1030641_fix

Install a configuration profile to prevent DOD applications from storing data in iCloud.

b
Apple iOS/iPadOS 18 must not allow backup to remote systems (enterprise books).
SC-4 - Medium - CCI-001090 - V-267964 - SV-267964r1031144_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-003700
Vuln IDs
  • V-267964
Rule IDs
  • SV-267964r1031144_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_MOF_EXT.1.2 #40
Checks: C-71888r1030643_chk

Review configuration settings to confirm "Allow backup of enterprise books" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow backup of enterprise books" is unchecked. Alternatively, verify the text "<key>allowEnterpriseBookBackup</key> <false/>" appears in the configuration profile (.mobileconfig file). 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Backing up enterprise books not allowed" is listed. If "Allow backup of enterprise books" is checked in the Apple iOS/iPadOS management tool, "<key>allowEnterpriseBookBackup</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Backing up enterprise books not allowed", this is a finding.

Fix: F-71791r1030644_fix

Install a configuration profile to prevent backup of enterprise books that could contain DOD sensitive information.

b
Apple iOS/iPadOS 18 must be configured to enforce a minimum password length of six characters.
- Medium - CCI-004066 - V-267987 - SV-267987r1031167_rule
RMF Control
Severity
Medium
CCI
CCI-004066
Version
AIOS-18-006500
Vuln IDs
  • V-267987
Rule IDs
  • SV-267987r1031167_rule
Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. The ability to crack a password is a function of how many attempts an adversary is permitted, how quickly an adversary can do each attempt, and the size of the password space. The longer the minimum length of the password is, the larger the password space. Having a too-short minimum password length significantly reduces password strength, increasing the chance of password compromise and resulting device and data compromise. SFRID: FMT_SMF.1.1 #1
Checks: C-71911r1030712_chk

Review configuration settings to confirm the minimum passcode length is six or more characters. This procedure is performed in the Apple iOS/iPadOS management tool and on the iPhone and iPad. 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 Management tool, verify the "Minimum passcode length" value is set to six or greater. Alternatively, verify the text "<key>minLength</key> <integer>6</integer>" appears in the configuration profile (.mobileconfig file). It also is acceptable for the integer value to be greater than six. 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 Apple iOS/iPadOS management tool containing the password policy. 5. Tap "Restrictions". 6. Tap "Passcode". 7. Verify "Minimum length" is listed as "six or greater". If the "Minimum passcode length" is less than six characters in the iOS management tool, "<key>minLength</key> " has an integer value of less than six, or the password policy on the iPhone and iPad from the Apple iOS/iPadOS management tool does not list "Minimum length" of six or more, this is a finding.

Fix: F-71814r1030713_fix

Install a configuration profile to enforce a minimum passcode length value of six or greater.

b
Apple iOS/iPadOS 18 must be configured to not allow passwords that include more than four repeating or sequential characters.
- Medium - CCI-004066 - V-267988 - SV-267988r1031168_rule
RMF Control
Severity
Medium
CCI
CCI-004066
Version
AIOS-18-006600
Vuln IDs
  • V-267988
Rule IDs
  • SV-267988r1031168_rule
Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. Passwords that contain repeating or sequential characters are significantly easier to guess than those that do not contain repeating or sequential characters. Therefore, disallowing repeating or sequential characters increases password strength and decreases risk. SFRID: FMT_SMF.1.1 #1
Checks: C-71912r1030715_chk

Review configuration settings to confirm simple passcodes are not allowed. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow simple value" is unchecked. Alternatively, verify the text "<key>allowSimple</key> <false/>" appears in the configuration profile (.mobileconfig file). 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 management tool containing the password policy. 5. Tap "Restrictions". 6. Tap "Passcode". 7. Verify "Simple passcodes allowed" is set to "No". If "Allow simple value" is checked in the Apple iOS/iPadOS management tool, "<key>allowSimple</key> <true/>" appears in the Configuration Profile, or the password policy on the iPhone and iPad does not have "Simple passcodes allowed" set to "No", this is a finding.

Fix: F-71815r1030716_fix

Install a configuration profile to disallow more than four sequential or repeating numbers or letters in the device unlock password.

b
Apple iOS/iPadOS 18 must be configured to lock the display after 15 minutes (or less) of inactivity.
AC-11 - Medium - CCI-000057 - V-267990 - SV-267990r1031170_rule
RMF Control
AC-11
Severity
Medium
CCI
CCI-000057
Version
AIOS-18-006800
Vuln IDs
  • V-267990
Rule IDs
  • SV-267990r1031170_rule
The screen lock timeout must be set to a value that helps protect the device from unauthorized access. Having a too-long timeout would increase the window of opportunity for adversaries who gain physical access to the mobile device through loss, theft, etc. Such devices are much more likely to be in an unlocked state when acquired by an adversary, thus granting immediate access to the data on the mobile device. The maximum timeout period of 15 minutes has been selected to balance functionality and security; shorter timeout periods may be appropriate depending on the risks posed to the mobile device. SFRID: FMT_SMF.1.1 #2
Checks: C-71914r1030721_chk

Review configuration settings to confirm the screen lock timeout is set to 15 minutes or less. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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 management tool, verify the sum of the values assigned to "Maximum Auto-Lock time" and "Grace period for device lock" is between 1 and 15 minutes. Alternatively, locate the text "<key>maxGracePeriod</key>" and "<key>maxInactivity</key>" and ensure the sum of their integer value is between 1 and 15 in the configuration profile (.mobileconfig file). For example: "<key>maxGracePeriod</key> <integer>5</integer> <key>maxInactivity</key> <integer>5</integer>" Here, 5 + 5 = 10; this meets the requirement. 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 management tool containing the password policy. 5. Tap "Restrictions". 6. Tap "Passcode". 7. Verify the sum of the "Max grace period" and "Max inactivity" values is less than 15 minutes. Note: On some iOS/iPadOS devices, it is not possible to have a sum of exactly 15. In these cases, the sum must be less than 15. A sum of 16 does not meet the requirement. On the management server, if the sum of the "Max grace period" and "Max inactivity" values is not between 1 and 15 minutes in the iOS/iPadOS management tool or the sum of the values assigned to "<key>maxGracePeriod</key>" and "<key>maxInactivity</key>" is not between 1 and 15 minutes in the configuration profile, or if on the iPhone/iPad, the sum of the values assigned to "Max grace period" and "Max inactivity" is not between 1 and 15 minutes, this is a finding.

Fix: F-71817r1030722_fix

Install a configuration profile to lock the device display after 15 minutes (or less) of inactivity. This is done by setting "Maximum Auto-Lock time" and "Grace Period for device lock" so the sum of their values is between 1 and 15 minutes.

b
Apple iOS/iPadOS 18 must be configured to not allow more than 10 consecutive failed authentication attempts.
AC-7 - Medium - CCI-000044 - V-267991 - SV-267991r1031171_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
AIOS-18-006900
Vuln IDs
  • V-267991
Rule IDs
  • SV-267991r1031171_rule
The more attempts an adversary has to guess a password, the more likely the adversary will enter the correct password and gain access to resources on the device. Setting a limit on the number of attempts mitigates this risk. Setting the limit at 10 or less gives authorized users the ability to make a few mistakes when entering the password but still provides adequate protection against dictionary or brute force attacks on the password. SFRID: FMT_SMF.1.1 #2, FIA_AFL_EXT.1.5
Checks: C-71915r1030724_chk

Review configuration settings to confirm that consecutive failed authentication attempts is set to 10 or fewer. This procedure is performed in the Apple iOS/iPadOS management tool and on the iPhone and iPad. 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 Management tool, verify the "Maximum number of failed attempts" value is set to 10 or fewer. Alternatively, verify the text "<key>maxFailedAttempts</key> <integer>10</integer>" appears in the configuration profile (.mobileconfig file). It also is acceptable for the integer value to be less than 10. 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 management tool containing the password policy. 5. Tap "Restrictions". 6. Tap "Passcode". 7. Verify "Max failed attempts" is listed as "10" or fewer. If the "Maximum number of failed attempts" is more than 10 in the iOS management tool, "<key>maxFailedAttempts</key> " has an integer value of more than 10, or the password policy on the iPhone and iPad does not list "Max failed attempts" of 10 or fewer, this is a finding.

Fix: F-71818r1030725_fix

Install a configuration profile to allow only 10 or fewer consecutive failed authentication attempts.

c
Apple iOS/iPadOS 18 must be configured to enforce a passcode reuse prohibition of at least two generations.
- High - CCI-004061 - V-267992 - SV-267992r1031172_rule
RMF Control
Severity
High
CCI
CCI-004061
Version
AIOS-18-006950
Vuln IDs
  • V-267992
Rule IDs
  • SV-267992r1031172_rule
iOS-iPadOS 17 and later versions include a feature that allows the previous passcode to be valid for 72 hours after a passcode change. If the previous passcode has been compromised and the attacker has access to it and the Apple device, enterprise data and the enterprise network can be compromised. Currently there is no MDM control to force the old passcode to expire immediately after passcode change. The previous passcode will expire immediately after a passcode change if the MDM password history control is implemented. SFRID: FMT_SMF.1.1 #47
Checks: C-71916r1030727_chk

Review configuration settings to confirm the Apple iOS or iPadOS device has a passcode reuse prohibition of at least two generations. This procedure is performed in the Apple iOS/iPadOS management tool and on the iPhone and iPad. 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 Management tool, verify the "Passcode History" value is set to two or greater. 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 Apple iOS/iPadOS management tool containing the password policy. 5. Tap "Restrictions". 6. Tap "Passcode". 7. Verify "Number of unique recent passcodes required" is listed as "two" or greater. If the Apple iOS or iPadOS device does not enforce a passcode reuse prohibition of at least two generations, this is a finding.

Fix: F-71819r1030728_fix

Install a configuration profile to enforce a passcode reuse prohibition of at least two generations (passcode history).

b
Apple iOS/iPadOS 18 must be configured to enforce an application installation policy by specifying one or more authorized application repositories, including [selection: DOD-approved commercial app repository, MDM server, mobile application store].
CM-6 - Medium - CCI-000366 - V-267993 - SV-267993r1031173_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-007000
Vuln IDs
  • V-267993
Rule IDs
  • SV-267993r1031173_rule
Forcing all applications to be installed from authorized application repositories can prevent unauthorized and malicious applications from being installed and executed on mobile devices. Allowing such installations and executions could cause a compromise of DOD data accessible by these unauthorized/malicious applications. SFRID: FMT_SMF.1.1 #8
Checks: C-71917r1030730_chk

Review configuration settings to confirm "Allow Trusting New Enterprise App Authors" is disabled. This procedure is performed in the Apple iOS/iPadOS management tool and on the iPhone and iPad. 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 Management tool, verify "Allow Trusting New Enterprise App Authors" is disabled. 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Trusting enterprise apps not allowed" is listed. If "Allow Trusting New Enterprise App Authors" is not disabled in the iOS/iPadOS management tool or on the iPhone and iPad, this is a finding.

Fix: F-71820r1030731_fix

Install a configuration profile to disable "Allow Trusting New Enterprise App Authors".

b
Apple iOS/iPadOS 18 must not include applications with the following characteristics: access to Siri when the device is locked.
IA-7 - Medium - CCI-000803 - V-267995 - SV-267995r1031175_rule
RMF Control
IA-7
Severity
Medium
CCI
CCI-000803
Version
AIOS-18-007200
Vuln IDs
  • V-267995
Rule IDs
  • SV-267995r1031175_rule
Requiring all authorized applications to be in an application allow list prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the allow list. Failure to configure an application allow list properly could allow unauthorized and malicious applications to be downloaded, installed, and executed on the mobile device, causing a compromise of DOD data accessible by these applications. Applications with the listed characteristics have features that can cause the compromise of sensitive DOD data or have features with no known application in the DOD environment. Application note: The application allow list, in addition to controlling the installation of applications on the MD, must control user access/execution of all core and preinstalled applications, or the MD must provide an alternate method of restricting user access/execution to core and preinstalled applications. Core application: Any application integrated into the OS by the OS or MD vendors. Preinstalled application: Additional noncore applications included in the OS build by the OS vendor, MD vendor, or wireless carrier. SFRID: FMT_SMF.1.1 #8
Checks: C-71919r1030736_chk

Review configuration settings to confirm that Siri is disabled on the Lock screen. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow Siri while device is locked" is unchecked. Alternatively, verify the text "<key>allowAssistantWhileLocked</key><false/>" appears in the configuration profile (.mobileconfig file). 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Siri while locked not allowed" is listed. If "Allow Siri while device is locked" is checked in the Apple iOS/iPadOS management tool, or "<key>allowAssistantWhileLocked</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad from the Apple iOS/iPadOS management tool does not list "Siri while locked not allowed", this is a finding.

Fix: F-71822r1030737_fix

Install a configuration profile to disable Siri while the device is locked.

b
Apple iOS/iPadOS 18 allow list must be configured to not include applications with the following characteristics: - Backs up MD data to non-DOD cloud servers (including user and application access to cloud backup services);- Transmits MD diagnostic data to non-DOD servers;- Allows synchronization of data or applications between devices associated with user; and- Allows unencrypted (or encrypted but not FIPS 140-3 validated) data sharing with other MDs or printers.- Apps which backup their own data to a remote system.
IA-7 - Medium - CCI-000803 - V-267997 - SV-267997r1031268_rule
RMF Control
IA-7
Severity
Medium
CCI
CCI-000803
Version
AIOS-18-007400
Vuln IDs
  • V-267997
Rule IDs
  • SV-267997r1031268_rule
Requiring all authorized applications to be in an application allow list prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the allow list. Failure to configure an application allow list properly could allow unauthorized and malicious applications to be downloaded, installed, and executed on the mobile device, causing a compromise of DOD data accessible by these applications. Applications with the listed characteristics have features that can cause the compromise of sensitive DOD data or have features with no known application in the DOD environment. Application note: The application allow list, in addition to controlling the installation of applications on the MD, must control user access/execution of all core and preinstalled applications, or the MD must provide an alternate method of restricting user access/execution to core and preinstalled applications. Core application: Any application integrated into the OS by the OS or MD vendors. Preinstalled application: Additional noncore applications included in the OS build by the OS vendor, MD vendor, or wireless carrier. SFRID: FMT_SMF.1.1 #8
Checks: C-71921r1031267_chk

Verify no apps with the following prohibited characteristics are included in the configuration profile: - Backs up MD data to non-DOD cloud servers (including user and application access to cloud backup services); - Transmits MD diagnostic data to non-DOD servers; - Allows synchronization of data or applications between devices associated with user; - Allows unencrypted (or encrypted but not FIPS 140-3 validated) data sharing with other MDs or printers; and - Backs up their own data to a remote system. This check procedure is performed on the Apple iOS/iPadOS management tool. 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/iPadOS management tool, verify "Allow Listed App" (allowlistedAppBundleIDs) is configured and there are no apps with prohibited characteristics. If "Allow listed apps" is not configured and contains apps with prohibited characteristics, this is a finding.

Fix: F-71824r1031268_fix

Install a configuration profile with an allow list of approved apps (allowlistedAppBundleIDs). Ensure the allow list does not include apps with the following characteristics: - Backs up MD data to non-DOD cloud servers (including user and application access to cloud backup services); - Transmits MD diagnostic data to non-DOD servers; - Allows synchronization of data or applications between devices associated with user; - Allows unencrypted (or encrypted but not FIPS 140-3 validated) data sharing with other MDs or printers; and - Backs up their own data to a remote system.

b
Apple iOS/iPadOS 18 must be configured to not display notifications when the device is locked.
AC-11 - Medium - CCI-000060 - V-267998 - SV-267998r1031178_rule
RMF Control
AC-11
Severity
Medium
CCI
CCI-000060
Version
AIOS-18-007500
Vuln IDs
  • V-267998
Rule IDs
  • SV-267998r1031178_rule
Many mobile devices display notifications 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 mobile operating system to not send notifications to the lock screen mitigates this risk. SFRID: FMT_SMF.1.1 #18
Checks: C-71922r1031033_chk

Review configuration settings to confirm the display of notifications when the device is locked has been disabled. This check procedure is performed on the Apple iOS/iPadOS management tool and mobile device. In the Apple iOS/iPadOS management tool, for each managed app, verify the app is configured to disable Notifications preview. 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 management tool containing the management policy. 5. Tap "Apps". 6. Tap an app and verify "Disallow notification view in locked screen" is listed. Repeat steps 5 and 6 for each managed app in the list. If one or more managed apps are not set to disable showing notification view on locked screen, this is a finding.

Fix: F-71825r1031034_fix

Install a configuration profile to disable the display of notifications when the device is locked. Install a configuration profile to disable Notification Center from the device Lock screen.

b
Apple iOS/iPadOS 18 must not display notifications (calendar information) when the device is locked.
AC-11 - Medium - CCI-000060 - V-267999 - SV-267999r1031179_rule
RMF Control
AC-11
Severity
Medium
CCI
CCI-000060
Version
AIOS-18-007600
Vuln IDs
  • V-267999
Rule IDs
  • SV-267999r1031179_rule
Many mobile devices display notifications 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 mobile operating system to not send notifications to the lock screen mitigates this risk. SFRID: FMT_SMF.1.1 #18
Checks: C-71923r1030748_chk

Review configuration settings to confirm "Show Today view in Lock screen" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Show Today view in Lock screen" is unchecked. Alternatively, verify the text "<key>allowLockScreenTodayView</key><false/>" appears in the configuration profile (.mobileconfig file). On the iPhone and iPad: 1. Open the Settings app. 2. Tap "General". 3. Tap "Profiles & Device Management" or Profiles". 4. Tap the Configuration Profile from the iOS management tool containing the management policy. 5. Tap "Restrictions". 6. Verify "Today view on lock screen not allowed" is present. If "Show Today view in Lock screen" is checked in the Apple iOS/iPadOS management tool, "<key>allowLockScreenTodayView</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Today view on lock screen not allowed", this is a finding.

Fix: F-71826r1030749_fix

Install a configuration profile to disable "Show Today view in Lock screen" from the device Lock screen.

a
Apple iOS/iPadOS 18 must be configured to display the DOD advisory warning message at startup or each time the user unlocks the device.
AC-8 - Low - CCI-000048 - V-268007 - SV-268007r1031187_rule
RMF Control
AC-8
Severity
Low
CCI
CCI-000048
Version
AIOS-18-008400
Vuln IDs
  • V-268007
Rule IDs
  • SV-268007r1031187_rule
Before granting access to the system, the mobile operating system is required to display the DOD-approved system use notification message or banner that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. Required banners help ensure that DOD can audit and monitor the activities of mobile device users without legal restriction. System use notification messages can be displayed when individuals first access or unlock the mobile device. The banner must be implemented as a "click-through" banner at device unlock (to the extent permitted by the operating system). A "click-through" banner prevents further activity on the information system unless and until the user executes a positive action to manifest agreement by clicking on a box indicating "OK". The approved DOD text must be used exactly as required in the Knowledge Service referenced in DODI 8500.01. For devices accommodating banners of 1300 characters, the banner text is: You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details. For devices with severe character limitations, the banner text is: I've read & consent to terms in IS user agreem't. The administrator must configure the banner text exactly as written without any changes. SFRID: FMT_SMF.1.1 #36
Checks: C-71931r1030772_chk

The DOD warning banner can be displayed by either of the following methods (required text is found in the Vulnerability Discussion): 1. By placing the DOD warning banner text in the user agreement signed by each iPhone and iPad user. 2. By installing a Lock Screen Message payload with the required text (preferred method). Determine which method is used at the iOS device site and follow the appropriate validation procedure below. Validation Procedure for Method #1: Review the signed user agreements for several iOS device users and verify the agreement includes the required DOD warning banner text. Validation Procedure for Method #2: In the Apple iOS/iPadOS management tool, verify a Lock Screen Message payload has been installed on each managed device. The LockScreenFootnote string should include required text. If, for Method #1, the required warning banner text is not on all signed user agreements reviewed, or for Method #2, the DOD warning banner text is not set as the lock screen footnote, this is a finding.

Fix: F-71834r1030773_fix

Configure the DOD warning banner by either of the following methods (required text is found in the Vulnerability Discussion): 1. By placing the DOD warning banner text in the user agreement signed by each iOS device user. 2. By installing a Lock Screen Message payload with the required text (preferred method).

b
Apple iOS/iPadOS 18 must be configured to not allow backup of [all applications, configuration data] to locally connected systems.
SC-4 - Medium - CCI-001090 - V-268013 - SV-268013r1031193_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-009200
Vuln IDs
  • V-268013
Rule IDs
  • SV-268013r1031193_rule
Data on mobile devices is protected by numerous mechanisms, including user authentication, access control, and cryptography. When the data is backed up to an external system (either locally connected or cloud based), many if not all of these mechanisms are no longer present. This leaves the backed-up data vulnerable to attack. Disabling backup to external systems mitigates this risk. SFRID: FMT_SMF.1.1 #40
Checks: C-71937r1030790_chk

Review configuration settings to confirm backup in management apps is disabled and "Encrypt local backup" is enabled in iTunes (for Windows computer) and in Finder on Mac. Note: iTunes Backup/Finder backup is implemented by the configuration policy rule "Force encrypted backups", which is included in AIOS-18-010700 and therefore not included in the procedure below. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify backing up app data is disabled. 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Apps". 6. Tap a managed app. 7. Verify "App data will not be backed up" is listed. Note: Steps 6 and 7 must be performed for each managed app. If backing up app data is not disabled in the Apple iOS/iPadOS management tool or "app data will not be backed up" is not listed for each managed app on the iPhone and iPad, this is a finding.

Fix: F-71840r1030791_fix

Install a configuration profile to disable backup of managed apps.

b
Apple iOS/iPadOS 18 must not allow non-DOD applications to access DOD data.
SC-39 - Medium - CCI-002530 - V-268017 - SV-268017r1031197_rule
RMF Control
SC-39
Severity
Medium
CCI
CCI-002530
Version
AIOS-18-009700
Vuln IDs
  • V-268017
Rule IDs
  • SV-268017r1031197_rule
App data sharing gives apps the ability to access the data of other apps for enhanced user functionality. However, sharing also poses a significant risk that unauthorized users or apps will obtain access to sensitive DOD information. To mitigate this risk, there are data sharing restrictions. If a user is allowed to make exceptions to the data sharing restriction policy, the user could enable unauthorized sharing of data, leaving it vulnerable to breach. Limiting the granting of exceptions to either the administrator or common application developer mitigates this risk. Copy/paste of data between applications in different application processes or groups of application processes is considered an exception to the access control policy; therefore, the administrator must be able to enable/disable the feature. Other exceptions include allowing any data or application sharing between process groups. SFRID: FMT_SMF.1.1 #42, FDP_ACF_EXT.1.2
Checks: C-71941r1030802_chk

Review configuration settings to confirm "Allow documents from managed apps in unmanaged apps" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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 management tool, verify "Allow documents from managed apps in unmanaged apps" is unchecked. Alternatively, verify the text "<key>allowOpenFromManagedToUnmanaged</key><false/>" appears in the configuration profile (.mobileconfig file). On the iOS 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 "Opening documents from managed to unmanaged apps not allowed" is listed. If "Allow documents from managed apps in unmanaged apps" is checked in the iOS management tool, "<key>allowOpenFromManagedToUnmanaged</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Opening documents from managed to unmanaged apps not allowed", this is a finding.

Fix: F-71844r1030803_fix

Install a configuration profile to prevent non-DOD applications from accessing DOD data.

b
Apple iPadOS 18 must be configured to disable multiuser modes.
AC-2 - Medium - CCI-002110 - V-268018 - SV-268018r1031198_rule
RMF Control
AC-2
Severity
Medium
CCI
CCI-002110
Version
AIOS-18-009800
Vuln IDs
  • V-268018
Rule IDs
  • SV-268018r1031198_rule
Multiuser mode allows multiple users to share a mobile device by providing a degree of separation between user data. To date, no mobile device with multiuser mode features meets DOD requirements for access control, data separation, and nonrepudiation for user accounts. In addition, the MDFPP does not include design requirements for multiuser account services. Disabling multiuser mode mitigates the risk of not meeting DOD multiuser account security policies. SFRID: FMT_SMF.1.1 #47a
Checks: C-71942r1030805_chk

Verify multiuser mode (shared iPad) is disabled in the MDM console for iPadOS devices. This requirement is not applicable for iOS devices. If multiuser mode is not disabled in the MDM console for iPadOS devices, this is a finding.

Fix: F-71845r1030806_fix

Disable multiuser mode (shared iPad) in the MDM console for iPadOS devices.

b
Apple iOS/iPadOS 18 must be configured to [selection: wipe protected data, wipe sensitive data] upon unenrollment from MDM.
MP-6 - Medium - CCI-001033 - V-268019 - SV-268019r1031199_rule
RMF Control
MP-6
Severity
Medium
CCI
CCI-001033
Version
AIOS-18-009900
Vuln IDs
  • V-268019
Rule IDs
  • SV-268019r1031199_rule
When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized because it will no longer be protected by the MDM software, putting it at much greater risk of unauthorized access and disclosure. At least one of the two options must be selected. SFRID: FMT_SMF_EXT.2.1
Checks: C-71943r1030808_chk

Note: Not all Apple iOS/iPadOS deployments involve MDM. If the site uses an authorized alternative to MDM for distribution of configuration profiles (Apple Configurator), this check procedure is not applicable. This check procedure is performed on the Apple iOS/iPadOS management tool or on the iOS device. In the Apple iOS/iPadOS management tool, for each managed app, verify the app is configured to be removed when the MDM profile is removed. 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 management tool containing the management policy. 5. Tap "Apps". 6. Tap an app and verify "App and data will be removed when device is no longer managed" is listed. Repeat steps 5 and 6 for each managed app in the list. If one or more managed apps are not set to be removed upon device MDM unenrollment, this is a finding.

Fix: F-71846r1030809_fix

Install a configuration profile to delete all managed apps upon device unenrollment.

b
Apple iOS/iPadOS 18 must be configured to [selection: remove Enterprise applications, remove all noncore applications (any nonfactory-installed application)] upon unenrollment from MDM.
MP-6 - Medium - CCI-001033 - V-268020 - SV-268020r1031200_rule
RMF Control
MP-6
Severity
Medium
CCI
CCI-001033
Version
AIOS-18-010000
Vuln IDs
  • V-268020
Rule IDs
  • SV-268020r1031200_rule
When a mobile device is no longer going to be managed by MDM technologies, its protected/sensitive data must be sanitized because it will no longer be protected by the MDM software, putting it at much greater risk of unauthorized access and disclosure. At least one of the two options must be selected. SFRID: FMT_SMF_EXT.2.1
Checks: C-71944r1030811_chk

Note: Not all Apple iOS/iPadOS deployments involve MDM. If the site uses an authorized alternative to MDM for distribution of configuration profiles (Apple Configurator), this check procedure is not applicable. This check procedure is performed on the Apple iOS/iPadOS management tool or on the iOS device. In the Apple iOS/iPadOS management tool, for each managed app, verify the app is configured to be removed when the MDM profile is removed. 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 management tool containing the management policy. 5. Tap "Apps". 6. Tap an app and verify "App and data will be removed when device is no longer managed" is listed. Repeat steps 5 and 6 for each managed app in the list. If one or more managed apps are not set to be removed upon device MDM unenrollment, this is a finding.

Fix: F-71847r1030812_fix

Install a configuration profile to delete all managed apps upon device unenrollment.

b
Apple iOS/iPadOS 18 must be configured to disable ad hoc wireless client-to-client connection capability.
SC-40 - Medium - CCI-002536 - V-268022 - SV-268022r1031202_rule
RMF Control
SC-40
Severity
Medium
CCI
CCI-002536
Version
AIOS-18-010200
Vuln IDs
  • V-268022
Rule IDs
  • SV-268022r1031202_rule
Ad hoc wireless client-to-client connections allow mobile devices to communicate with each other directly, circumventing network security policies and making the traffic invisible. This could allow the exposure of sensitive DOD data and increase the risk of downloading and installing malware on the DOD mobile device. SFRID: FMT_SMF_EXT.1.1/WLAN
Checks: C-71946r1030817_chk

Determine if the site authorizing official (AO) has approved the use of AirDrop for unmanaged data transfer. Look for a document showing approval. If AirDrop is not approved, review configuration settings to confirm it is disabled. If AirDrop is approved, this requirement is not applicable. This 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 AO has not approved the use of AirDrop for unmanaged data transfer). 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 "Allow AirDrop" 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 "AirDrop not allowed" is listed. If the AO has not approved AirDrop, and "AirDrop not allowed" is not listed in the management tool and on the Apple device, this is a finding.

Fix: F-71849r1030818_fix

If the AO has not approved the use of AirDrop for unmanaged data transfer, install a configuration profile to disable the AllowAirDrop control in the management tool. This a supervised-only control.

c
Apple iOS/iPadOS 18 must require a valid password be successfully entered before the mobile device data is unencrypted.
SC-28 - High - CCI-001199 - V-268024 - SV-268024r1031204_rule
RMF Control
SC-28
Severity
High
CCI
CCI-001199
Version
AIOS-18-010400
Vuln IDs
  • V-268024
Rule IDs
  • SV-268024r1031204_rule
Passwords provide a form of access control that prevents unauthorized individuals from accessing computing resources and sensitive data. Passwords may also be a source of entropy for generation of key encryption or data encryption keys. If a password is not required to access data, this data is accessible to any adversary who obtains physical possession of the device. Requiring that a password be successfully entered before the mobile device data is unencrypted mitigates this risk. Note: MDF PP requires a Password Authentication Factor and requires management of its length and complexity. It leaves open whether the  existence of a password is subject to management. This requirement addresses the configuration to require a password, which is critical to the cybersecurity posture of the device. SFRID: FIA_UAU_EXT.1.1
Checks: C-71948r1030823_chk

Review configuration settings to confirm the device is set to require a passcode before use. This procedure is performed on the iOS and iPadOS device. 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 management tool containing the password policy. 5. Tap "Restrictions". 6. Tap "Passcode". 7. Verify "Passcode required" is set to "Yes". If "Passcode required" is not set to "Yes", this is a finding.

Fix: F-71851r1030824_fix

Install a configuration profile to require a password to unlock the device.

a
Apple iOS/iPadOS 18 must implement the management setting: limit Ad Tracking.
SC-28 - Low - CCI-001199 - V-268026 - SV-268026r1031206_rule
RMF Control
SC-28
Severity
Low
CCI
CCI-001199
Version
AIOS-18-010500
Vuln IDs
  • V-268026
Rule IDs
  • SV-268026r1031206_rule
Ad Tracking refers to the advertisers' ability to categorize the device and spam the user with ads that are most relevant to the user's preferences. By not "Force limiting ad tracking", advertising companies are able to gather information about the user and device's browsing habits. If "Limit Ad Tracking" is not limited, a database of browsing habits of DOD devices can be gathered and stored under no supervision of the DOD. Limiting ad tracking does not completely mitigate the risk but does limit the amount of information gathering. SFRID: FMT_SMF.1.1 #47
Checks: C-71950r1030829_chk

Review configuration settings to confirm "Force limited ad tracking" is checked. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Force limited ad tracking" is checked. Alternatively, verify the text "<key>forceLimitAdTracking</key><true/>" appears in the configuration profile (.mobileconfig file). 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 management tool containing the management policy. 5. Tap "Restrictions". 6. Verify "Limit ad tracking enforced" or "Requests to track from apps not allowed" is present. If "limited ad tracking enforced" is missing in the Apple iOS/iPadOS management tool, "<key>forceLimitAdTracking</key><false/>" does not appear in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Limit ad tracking enforced", this is a finding.

Fix: F-71853r1030830_fix

Install a configuration profile to limit advertisers' ability to track the user's web browsing preferences.

a
Apple iOS/iPadOS 18 must implement the management setting: not allow automatic completion of Safari browser passcodes.
CM-7 - Low - CCI-000381 - V-268027 - SV-268027r1031207_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
AIOS-18-010600
Vuln IDs
  • V-268027
Rule IDs
  • SV-268027r1031207_rule
The AutoFill functionality in the Safari web browser allows the user to complete a form that contains sensitive information, such as PII, without previous knowledge of the information. By allowing the use of the AutoFill functionality, an adversary who learns a user's iPhone or iPad passcode, or who otherwise is able to unlock the device, may be able to further breach other systems by relying on the AutoFill feature to provide information unknown to the adversary. By disabling the AutoFill functionality, the risk of an adversary gaining additional information about the device's user or compromising other systems is significantly mitigated. SFRID: FMT_SMF.1.1 #47
Checks: C-71951r1030832_chk

Review configuration settings to confirm "Enable autofill" is unchecked. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Enable autofill" is unchecked. Alternatively, verify the text "<key>safariAllowAutoFill</key><false>" appears in the configuration profile (.mobileconfig file). 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 management tool containing the management policy. 5. Tap "Restrictions". 6. Verify "Auto-fill in Safari not allowed" is present. If "Enable autofill" is checked in the Apple iOS/iPadOS management tool, "<key>safariAllowAutoFill</key><true>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Auto-fill in Safari not allowed", this is a finding.

Fix: F-71854r1030833_fix

Install a configuration profile to disable the AutoFill capability in the Safari app.

b
Apple iOS/iPadOS 18 must implement the management setting: encrypt backups/Encrypt local backup.
CM-7 - Medium - CCI-000381 - V-268028 - SV-268028r1031208_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
AIOS-18-010700
Vuln IDs
  • V-268028
Rule IDs
  • SV-268028r1031208_rule
If iCloud backups are not encrypted, this could lead to the unauthorized disclosure of DOD sensitive information if non-DOD personnel are able to access that machine. Forcing the backup to be encrypted greatly mitigates the risk of compromising sensitive data. Work data iCloud backup and USB connections to computers are not authorized, but this control provides defense-in-depth for cases in which a user violates policy either intentionally or inadvertently. SFRID: FMT_SMF.1.1 #47
Checks: C-71952r1030835_chk

Review configuration settings to confirm "Force encrypted backups" is enabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Encrypt local backup" is checked. Alternatively, verify the text "<key>forceEncryptedBackup</key><true/>" appears in the configuration profile (.mobileconfig file). 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Encrypt backups enforced" is listed. If "Encrypt local backup" is unchecked in the Apple iOS/iPadOS management tool, "<key>forceEncryptedBackup</key><false/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Encrypt backups enforced", this is a finding.

Fix: F-71855r1030836_fix

Install a configuration profile to force encrypted backups to iCloud.

a
Apple iOS/iPadOS 18 must implement the management setting: not allow use of Handoff.
CM-7 - Low - CCI-000381 - V-268029 - SV-268029r1031209_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
AIOS-18-010800
Vuln IDs
  • V-268029
Rule IDs
  • SV-268029r1031209_rule
Handoff permits a user of an iPhone and iPad to transition user activities from one device to another. Handoff passes sufficient information between the devices to describe the activity, but app data synchronization associated with the activity is handled though iCloud, which should be disabled on a compliant iPhone and iPad. If a user associates both DOD and personal devices to the same Apple ID, the user may improperly reveal information about the nature of the user's activities on an unprotected device. Disabling Handoff mitigates this risk. SFRID: FMT_SMF.1.1 #47
Checks: C-71953r1030838_chk

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, review configuration settings to confirm "Allow Handoff" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow Handoff" is unchecked. Alternatively, verify the text "<key>allowActivityContinuation</key> <false/>" appears in the configuration profile (.mobileconfig file). 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Handoff not allowed" is listed. If "Allow Handoff" is checked in the Apple iOS/iPadOS management tool, "<key>allowActivityContinuation</key> <true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "Handoff not allowed", this is a finding.

Fix: F-71856r1030839_fix

Install a configuration profile to disable continuation of activities among devices and workstations. This a supervised-only control.

a
Apple iOS/iPadOS 18 must implement the management setting: not allow use of iPhone widgets on Mac.
CM-7 - Low - CCI-000381 - V-268030 - SV-268030r1031210_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
AIOS-18-010850
Vuln IDs
  • V-268030
Rule IDs
  • SV-268030r1031210_rule
iPhone widgets on Mac use Handoff. Handoff permits a user of an iPhone and iPad to transition user activities from one device to another. Handoff passes sufficient information between the devices to describe the activity, but app data synchronization associated with the activity is handled though iCloud, which should be disabled on a compliant iPhone and iPad. If a user associates both DOD and personal devices to the same Apple ID, the user may improperly reveal information about the nature of the user's activities on an unprotected device. Disabling Handoff mitigates this risk. SFRID: FMT_SMF.1.1 #47
Checks: C-71954r1030841_chk

Review configuration settings to confirm "Allow iPhone Widget on Mac" is disabled. This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding. This check procedure is performed only on the Apple iOS/iPadOS management tool. 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/iPadOS management tool, verify "iPhone Widget on Mac" is unchecked. If "Allow iPhone Widget on Mac" is checked in the Apple iOS/iPadOS management tool, this is a finding.

Fix: F-71857r1030842_fix

Install a configuration profile to disable the installation of iPhone widgets on Mac. This a supervised-only control.

a
Apple iOS/iPadOS 18 must implement the management setting: require the user to enter a password when connecting to an AirPlay-enabled device.
AC-17 - Low - CCI-000067 - V-268031 - SV-268031r1031211_rule
RMF Control
AC-17
Severity
Low
CCI
CCI-000067
Version
AIOS-18-010900
Vuln IDs
  • V-268031
Rule IDs
  • SV-268031r1031211_rule
When a user is allowed to use AirPlay without a password, it may mistakenly associate the iPhone and iPad with an AirPlay-enabled device other than the one intended (i.e., by choosing the wrong one from the AirPlay list displayed). This creates the potential for someone in control of a mistakenly associated device to obtain DOD sensitive information without authorization. Requiring a password before such an association mitigates this risk. Passwords do not require any administration and are not required to comply with any complexity requirements. SFRID: FMT_SMF.1.1 #40
Checks: C-71955r1030844_chk

Review configuration settings to confirm "Require passcode on outgoing AirPlay request" is enabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Require passcode on outgoing AirPlay request" is checked. Alternatively, verify the text "<key>forceAirPlayOutgoingRequestsPairingPassword</key><false/>" appears in the configuration profile (.mobileconfig file). 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "AirPlay outgoing requests pairing password enforced" is listed. If "Require passcode on outgoing AirPlay request" is unchecked in the Apple iOS/iPadOS management tool, "<key>forceAirPlayOutgoingRequestsPairingPassword</key><true/>" appears in the configuration profile, or the restrictions policy on the iPhone and iPad does not list "AirPlay outgoing requests pairing password enforced", this is a finding.

Fix: F-71858r1030845_fix

Install a configuration profile to require the user to enter a password when connecting to an AirPlay-enabled device.

a
Apple iOS/iPadOS 18 must implement the management setting: require passcode for incoming Airplay connection requests.
AC-17 - Low - CCI-000067 - V-268032 - SV-268032r1031212_rule
RMF Control
AC-17
Severity
Low
CCI
CCI-000067
Version
AIOS-18-010950
Vuln IDs
  • V-268032
Rule IDs
  • SV-268032r1031212_rule
When an incoming AirPlay request is allowed without a password, it may mistakenly associate the iPhone and iPad with an AirPlay-enabled device other than the one intended (i.e., by choosing the wrong one from the AirPlay list displayed). This creates the potential for someone in control of a mistakenly associated device to obtain DOD sensitive information without authorization. Requiring a password before such an association mitigates this risk. Passwords do not require any administration and are not required to comply with any complexity requirements. SFRID: FMT_SMF.1.1 #40
Checks: C-71956r1030847_chk

Review configuration settings to confirm "Require passcode for incoming AirPlay connection requests" is enabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Require passcode for incoming AirPlay connection requests" is checked. 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "AirPlay incoming requests pairing password enforced" is listed. If "Require passcode for incoming AirPlay connection requests" is unchecked in the Apple iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad does not list "AirPlay incoming requests pairing password enforced", this is a finding.

Fix: F-71859r1030848_fix

Install a configuration profile to require that incoming AirPlay connection requests enter a password when connecting to a DOD iOS/iPadOS device.

b
Apple iOS/iPadOS 18 must implement the management setting: disable Allow MailDrop.
AC-17 - Medium - CCI-002314 - V-268033 - SV-268033r1031213_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-002314
Version
AIOS-18-011000
Vuln IDs
  • V-268033
Rule IDs
  • SV-268033r1031213_rule
MailDrop allows users to send large attachments (up to 5 GB) 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. SFRID: FMT_SMF.1.1 #47
Checks: C-71957r1030850_chk

Review configuration settings to confirm "Allow MailDrop" is disabled. This validation procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow MailDrop" is not checked. 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Mail". 6. Tap the mail account. 7. Verify "Mail Drop Enabled" is set to "No". If "Allow MailDrop" is not disabled in the Apple iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad lists "Mail Drop Enabled" as "Yes", this is a finding.

Fix: F-71860r1030851_fix

Configure the Apple iOS/iPadOS configuration profile to disable "Allow MailDrop".

c
iPhone and iPad must have the latest available iOS/iPadOS operating system installed.
CM-7 - High - CCI-000381 - V-268034 - SV-268034r1031214_rule
RMF Control
CM-7
Severity
High
CCI
CCI-000381
Version
AIOS-18-011200
Vuln IDs
  • V-268034
Rule IDs
  • SV-268034r1031214_rule
Required security features are not available in earlier OS versions. In addition, earlier versions may have known vulnerabilities. SFRID: FMT_SMF.1.1 #47
Checks: C-71958r1030853_chk

Review configuration settings to confirm the most recently released version of iOS is installed. This validation procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. Go to https://www.apple.com and determine the most current version of iOS released by Apple. In the MDM management console, review the version of iOS installed on a sample of managed devices. This procedure will vary depending on the MDM product. On the iPhone and iPad: 1. Open the Settings app. 2. Tap "General". 3. Tap "About" and view the installed version of iOS. 4. Go back to the "General" screen. Tap "Software Update" and verify the following message is shown on the screen: "Your software is up to date." If the installed version of iOS on any reviewed iOS/iPadOS devices is not the latest released by Apple, this is a finding.

Fix: F-71861r1030854_fix

Install the latest release version of Apple iOS/iPadOS on all managed iOS devices.

b
Apple iOS/iPadOS 18 must implement the management setting: use SSL for Exchange ActiveSync.
IA-2 - Medium - CCI-000764 - V-268035 - SV-268035r1031215_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
AIOS-18-011300
Vuln IDs
  • V-268035
Rule IDs
  • SV-268035r1031215_rule
Exchange email messages are a form of data in transit and thus are vulnerable to eavesdropping and man-in-the-middle attacks. Secure Sockets Layer (SSL), also referred to as Transport Layer Security (TLS), provides encryption and authentication services that mitigate the risk of breach. SFRID: FMT_SMF.1.1 #47
Checks: C-71959r1030856_chk

Review configuration settings to confirm "Use SSL" for the Exchange account is enabled for incoming mail. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Use SSL for incoming mail" is checked under the Exchange payload. 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 Apple iOS/iPadOS management tool containing the Exchange policy. 5. Tap "Mail". 6. Tap the name of the Exchange account. 7. Verify "SSL for incoming mail" is set to "Yes". If "Use SSL for incoming mail" is unchecked in the Apple iOS/iPadOS management tool or the Exchange policy on the iPhone and iPad has "SSL for incoming mail" set to "No", this is a finding.

Fix: F-71862r1030857_fix

Install a configuration profile to use SSL for Exchange ActiveSync incoming mail.

b
Apple iOS/iPadOS 18 must implement the management setting: not allow messages in an ActiveSync Exchange account to be forwarded or moved to other accounts in the Apple iOS/iPadOS 18 Mail app.
IA-2 - Medium - CCI-000764 - V-268036 - SV-268036r1031216_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
AIOS-18-011400
Vuln IDs
  • V-268036
Rule IDs
  • SV-268036r1031216_rule
The Apple iOS/iPadOS Mail app can be configured to support multiple email accounts concurrently. These email accounts are likely to involve content of varying degrees of sensitivity (e.g., both personal and enterprise messages). To prevent the unauthorized and undetected forwarding or moving of messages from one account to another, Mail ActiveSync Exchange accounts can be configured to block such behavior. While users may still send a message from the Exchange account to another account, these transactions must involve an Exchange server, enabling audit records of the transaction, filtering of mail content, and subsequent forensic analysis. SFRID: FMT_SMF.1.1 #47
Checks: C-71960r1030859_chk

Review configuration settings to confirm "Allow messages to be moved" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Allow messages to be moved" is unchecked under the Exchange payload. 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 Apple iOS/iPadOS management tool containing the Exchange policy. 5. Tap "Mail". 6. Tap the name of the Exchange account. 7. Verify "Prevent Move" is set to "Yes". If "Allow messages to be moved" is checked in the Apple iOS/iPadOS management tool or the Exchange policy on the iPhone and iPad has "Prevent Move" set to "No", this is a finding.

Fix: F-71863r1030860_fix

Install a configuration profile to prevent Exchange messages from being moved or forwarded between email accounts.

b
Apple iOS/iPadOS 18 must implement the management setting: treat AirDrop as an unmanaged destination.
IA-5 - Medium - CCI-002007 - V-268037 - SV-268037r1031217_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-002007
Version
AIOS-18-011500
Vuln IDs
  • V-268037
Rule IDs
  • SV-268037r1031217_rule
AirDrop is a way to send contact information or photos to other users with AirDrop enabled. This feature enables a possible attack vector for adversaries to exploit. Once the attacker has gained access to the information broadcast by this feature, the attacker may distribute this sensitive information very quickly and without DOD's control or awareness. By disabling this feature, the risk of mass data exfiltration will be mitigated. Note: If the site uses Apple's optional Automatic Device Enrollment, this control is available as a supervised MDM control. SFRID: FMT_SMF.1.1 #47
Checks: C-71961r1030862_chk

Review configuration settings to confirm "Treat AirDrop as an unmanaged destination" is enabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Treat AirDrop as unmanaged destination" is checked. On the iPhone and iPad: 1. Open the Settings app. 2. Tap "General". 3. Tap "VPN & Device Management". 4. Tap the Configuration management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Sharing managed documents using AirDrop not allowed" is listed. If "Treat AirDrop as unmanaged destination" is disabled in the Apple iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad does not list "Sharing managed documents using AirDrop not allowed", this is a finding.

Fix: F-71864r1030863_fix

Install a configuration profile to treat AirDrop as an unmanaged destination.

a
Apple iOS/iPadOS 18 must implement the management setting: not have any Family Members in Family Sharing.
IA-5 - Low - CCI-002007 - V-268038 - SV-268038r1031218_rule
RMF Control
IA-5
Severity
Low
CCI
CCI-002007
Version
AIOS-18-011600
Vuln IDs
  • V-268038
Rule IDs
  • SV-268038r1031218_rule
Apple's Family Sharing service allows Apple iOS/iPadOS users to create a Family Group whose members have several shared capabilities, including the ability to lock, wipe, play a sound on, or locate the iPhone and iPads of other members. Each member of the group must be invited to the group and accept that invitation. A DOD user's iPhone and iPad may be inadvertently or maliciously wiped by another member of the Family Group. This poses a risk that the user could be without a mobile device for a period of time or lose sensitive information that has not been backed up to other storage media. Configuring iPhone and iPads so their associated Apple IDs are not members of Family Groups mitigates this risk. Note: If the site uses Apple's optional Automatic Device Enrollment, this control is available as a supervised MDM control. SFRID: FMT_SMF.1.1 #47
Checks: C-71962r1030865_chk

Review configuration settings to confirm Family Sharing is disabled. Note that this is a User-Based Enforcement (UBE) control, which cannot be managed by an MDM server. This check procedure is performed on the iPhone and iPad. On the iPhone and iPad: 1. Open the Settings app. 2. At the top of the screen, if "Sign in to your iPhone" is listed, this requirement has been met. 3. If the user profile is signed into iCloud, tap the username. 4. Tap "Family Sharing". 5. Verify no accounts are listed other than the "Organizer". Note: The iPhone and iPad must be connected to the internet to conduct this validation procedure. Otherwise, the device will display the notice "Family information is not available", in which case configuration compliance cannot be determined. If accounts (names or email addresses) are listed under "FAMILY MEMBERS" on the iPhone and iPad, this is a finding.

Fix: F-71865r1030866_fix

The user must either remove all members from the Family Group on the iPhone and iPad or associate the device with an Apple ID that is not a member of a Family Group.

b
Apple iOS/iPadOS 18 must implement the management setting: not share location data through iCloud.
AC-8 - Medium - CCI-000048 - V-268039 - SV-268039r1031219_rule
RMF Control
AC-8
Severity
Medium
CCI
CCI-000048
Version
AIOS-18-011700
Vuln IDs
  • V-268039
Rule IDs
  • SV-268039r1031219_rule
Sharing of location data is an operational security (OPSEC) risk because it potentially allows an adversary to determine a DOD user's location, movements, and patterns in those movements over time. An adversary could use this information to target the user or gather intelligence on the user's likely activities. Using commercial cloud services to store and handle location data could leave the data vulnerable to breach, particularly by sophisticated adversaries. Disabling the use of such services mitigates this risk. SFRID: FMT_SMF.1.1 #47
Checks: C-71963r1030868_chk

Review configuration settings to confirm "Share My Location" is disabled. Note that this is a User-Based Enforcement (UBE) control, which cannot be managed by an MDM server. This check procedure is performed on the iPhone and iPad only. On the iPhone and iPad: 1. Open the Settings app. 2. Tap "Privacy & Security". 3. Tap "Location Services". 4. If the authorizing official (AO) has not approved use of personal iCloud accounts on the device, verify "Share My Location" is grayed out (cannot be selected). 5. If the AO has approved the use of personal iCloud accounts on the device, tap "Share My Location". 6. Verify "Share My Location" is off. If "Share My Location" is not grayed out (cannot be selected) when the AO has not approved use of personal iCloud accounts on the device, this is a finding. If "Share My Location" is toggled to the right and appears green on the iPhone and iPad when the AO has approved the use of personal iCloud accounts, this is a finding.

Fix: F-71866r1030869_fix

The user must configure Apple iOS/iPadOS to disable location sharing through iCloud.

a
Apple iOS/iPadOS 18 must implement the management setting: force Apple Watch wrist detection.
CM-7 - Low - CCI-000381 - V-268040 - SV-268040r1031220_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
AIOS-18-011800
Vuln IDs
  • V-268040
Rule IDs
  • SV-268040r1031220_rule
Because Apple Watch is a personal device, it is key that any sensitive DOD data displayed on the Apple Watch cannot be viewed when the watch is not in the immediate possession of the user. This control ensures the Apple Watch screen locks when the user takes the watch off, thereby protecting sensitive DOD data from possible exposure. SFRID: FMT_SMF.1.1 #47
Checks: C-71964r1030871_chk

Review configuration settings to confirm "Force Apple Watch wrist detection" is enabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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/iPadOS management tool, verify "Wrist detection enforced on Apple Watch" is enforced. 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 Apple iOS/iPadOS management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Wrist detection enforced on Apple Watch" is listed. If "Wrist detection enforced on Apple Watch" is not enforced in the Apple iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad does not list "Wrist detection enforced on Apple Watch", this is a finding.

Fix: F-71867r1030872_fix

Install a configuration profile to force Apple Watch wrist detection.

b
Apple iOS/iPadOS 18 users must complete required training.
CM-7 - Medium - CCI-000381 - V-268041 - SV-268041r1031221_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
AIOS-18-011900
Vuln IDs
  • V-268041
Rule IDs
  • SV-268041r1031221_rule
The security posture on iOS devices requires the device user to configure several required policy rules on their device. User-Based Enforcement (UBE) is required for these controls. In addition, if the authorizing official (AO) has approved users' full access to the Apple App Store, users must receive training on risks. If a user is not aware of their responsibilities and does not comply with UBE requirements, the security posture of the iOS mobile device and DOD sensitive data may become compromised. SFRID: NA
Checks: C-71965r1030874_chk

Review a sample of site User Agreements for iOS device users or similar training records and training course content. Verify iPhone and iPad users have completed required training. If any iPhone/iPad user has not completed required training, this is a finding.

Fix: F-71868r1030875_fix

Have all iPhone and iPad users complete training on the following topics. Users must acknowledge receipt of training via a signed User Agreement or similar written record. Training topics: - Operational security concerns introduced by unmanaged applications, including applications using global positioning system (GPS) tracking. - Must ensure no DOD data is saved in an unmanaged app or transmitted from a personal app (for example, from personal email). - If the Purebred key management app is used, users are responsible for maintaining positive control of their credentialed device at all times. The DOD PKI certificate policy requires subscribers to maintain positive control of the devices that contain private keys and report any loss of control so the credentials can be revoked. Upon device retirement, turn in, or reassignment, ensure a factory data reset is performed prior to device handoff. Follow mobility service provider decommissioning procedures as applicable. - How to configure the following UBE controls (users must configure the control) and other controls on the iPhone and iPad: **Remove Family Sharing. **Disable Shared Location. **Disable Wi-Fi Assist. **Use AirPrint only with AO-approved printers and print servers (see the Multifunction Device and Network Printers STIG for requirements). **Turn off "Apps" under "Automatic Downloads" in the "iTunes & App Store" section of the Settings app on the iPhone and iPad. **Secure use of Calendar Alarm. **Do not configure a DOD network (work) VPN profile on any third-party unmanaged VPN app. **Disable iPhone and iPad radios using controls under "Settings" instead of "Control Center". - AO guidance on acceptable use and restrictions, if any, on downloading and installing personal apps and data (music, photos, etc.).

b
A managed photo app must be used to take and store work-related photos.
CM-6 - Medium - CCI-000366 - V-268042 - SV-268042r1031222_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-012000
Vuln IDs
  • V-268042
Rule IDs
  • SV-268042r1031222_rule
The iOS Photos app is unmanaged and may sync photos with a device or user's personal iCloud account. Therefore, work-related photos must not be taken via the iOS camera app or stored in the Photos app. A managed photo app must be used to take and manage work-related photos. SFRID: NA
Checks: C-71966r1030877_chk

Review configuration settings to confirm a managed photos app is installed on the iOS device. This check procedure is performed on the iPhone and iPad. On the iPhone and iPad: 1. Open the Settings app. 2. Tap "General". 3. Tap "VPN & Device Management". 4. Tap the DOD Configuration Profile from the Apple iOS/iPadOS management tool. 5. Tap "Apps". 6. Verify a photo capture and management app is listed. If a managed photo capture and management app is not installed on the iPhone and iPad, this is a finding.

Fix: F-71869r1030878_fix

Install a managed photos app to take and manage work-related photos.

b
Apple iOS/iPadOS 18 must implement the management setting: enable USB Restricted Mode.
CM-6 - Medium - CCI-000366 - V-268044 - SV-268044r1031224_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-012200
Vuln IDs
  • V-268044
Rule IDs
  • SV-268044r1031224_rule
The USB port on an iOS device can be used to access data on the device. The required settings ensure the Apple device password is entered before a previously trusted USB accessory can connect to the device. SFRID: FMT_SMF.1.1 #47
Checks: C-71968r1030883_chk

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, review configuration settings to confirm "Allow USB Restricted Mode" is enabled. 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 management tool, verify "Allow USB Restricted Mode" is checked (set to "True"). 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 there is no listing for "USB Accessories while locked allowed". If "Allow USB Restricted Mode" is not enabled in the management tool and there is a restriction listed in the profile on the Apple device, this is a finding. Note: The default configuration setting for "allow USB Restricted Mode" is "True" in most MDM products. This is the required setting. When set correctly, nothing will be listed in the Restrictions profile, and the user will be able to toggle USB accessories on/off. Note: "Allow USB Restricted Mode" may be called "Allow USB accessories while device is locked" in some MDM consoles. The required logic is to disable USB accessory connections when the device is locked.

Fix: F-71871r1030884_fix

Install a configuration profile to configure "Allow USB Restricted Mode" to "True" in the management tool. This a supervised-only control. Note: The default configuration setting for "allow USB Restricted Mode" is "True" in most MDM products. This is the required setting. When set correctly, nothing will be listed in the Restrictions profile, and the user will be able to toggle USB accessories on/off. Note: This control is called "Allow USB accessories while device is locked" in Apple Configurator, and the control logic is opposite to what is listed here. Ensure the MDM policy rule is set correctly (to disable USB accessory connections when the device is locked).

a
Apple iOS/iPadOS 18 must not allow managed apps to write contacts to unmanaged contacts accounts.
CM-6 - Low - CCI-000366 - V-268045 - SV-268045r1031225_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
AIOS-18-012300
Vuln IDs
  • V-268045
Rule IDs
  • SV-268045r1031225_rule
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
Checks: C-71969r1030886_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: F-71872r1030887_fix

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

a
Apple iOS/iPadOS 18 must not allow unmanaged apps to read contacts from managed contacts accounts.
CM-6 - Low - CCI-000366 - V-268046 - SV-268046r1031226_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
AIOS-18-012400
Vuln IDs
  • V-268046
Rule IDs
  • SV-268046r1031226_rule
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
Checks: C-71970r1030889_chk

Review configuration settings to confirm "Allow unmanaged apps to read contacts from managed contacts accounts" is disabled. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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 management tool, verify "Allow unmanaged apps to read contacts from managed 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 unmanaged apps to read contacts from managed contacts accounts" is not listed. If "Allow unmanaged apps to read contacts from managed contacts accounts" is checked in the iOS/iPadOS management tool or the restrictions policy on the iPhone and iPad lists "Allow unmanaged apps to read contacts from managed contacts accounts", this is a finding.

Fix: F-71873r1030890_fix

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

b
Apple iOS/iPadOS 18 must implement the management setting: disable AirDrop.
CM-6 - Medium - CCI-000366 - V-268047 - SV-268047r1031227_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-012500
Vuln IDs
  • V-268047
Rule IDs
  • SV-268047r1031227_rule
AirDrop is a way to send contact information or photos to other users with this same feature enabled. This feature enables a possible attack vector for adversaries to exploit. Once the attacker has gained access to the information broadcast by this feature, the attacker may distribute this sensitive information very quickly and without DOD's control or awareness. By disabling this feature, the risk of mass data exfiltration will be mitigated. Note: If the site uses Apple's optional Automatic Device Enrollment, this control is available as a supervised MDM control. SFRID: FMT_SMF.1.1 #47
Checks: C-71971r1030892_chk

Determine if the site authorizing official (AO) has approved the use of AirDrop for unmanaged data transfer. Look for a document showing approval. If AirDrop is not approved, review configuration settings to confirm it is disabled. If approved, this requirement is not applicable. This 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 authorizing official [AO] has not approved the use of AirDrop for unmanaged data transfer). 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 "Allow AirDrop" 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 "AirDrop not allowed" or "Sharing managed documents using Airdrop not allowed" is listed. If the AO has not approved AirDrop and "AirDrop not allowed" is not listed in the management tool and on the Apple device, this is a finding.

Fix: F-71874r1030893_fix

If the AO has not approved the use of AirDrop for unmanaged data transfer, install a configuration profile to disable the "Allow AirDrop" control in the management tool. This a supervised-only control.

b
Apple iOS/iPadOS 18 must implement the management setting: disable paired Apple Watch.
CM-6 - Medium - CCI-000366 - V-268048 - SV-268048r1031228_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-012600
Vuln IDs
  • V-268048
Rule IDs
  • SV-268048r1031228_rule
Authorizing official (AO) approval is required before an Apple Watch (DOD-owned or personally owned) can be paired with a DOD-owned iPhone to ensure the AO has evaluated the risk in having sensitive DOD data transferred to and stored on an Apple Watch in their operational environment. SFRID: FMT_SMF.1.1 #47
Checks: C-71972r1030895_chk

Determine if the site AO has approved the use of Apple Watch with DOD-owned iPhones. Look for a document showing approval. If not approved, review configuration settings to confirm "Allow Paired Watch" is disabled. If approved, this requirement is not applicable. This 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 AO has not approved the use of Apple Watch for unmanaged data transfer). 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. 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 management tool, verify "Allow Paired Watch" is unchecked. On the iPhone: 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 "Paired Apple Watch not allowed" is listed. If the AO has not approved pairing an Apple Watch with a DOD-owned iPhone and "Paired Apple Watch not allowed" is not listed both in the management tool and on the Apple device, this is a finding.

Fix: F-71875r1030896_fix

If the AO has not approved the use of Apple Watch with DOD-owned iPhones, install a configuration profile to disable the Apple Watch control in the management tool. This a supervised-only control.

b
Apple iOS/iPadOS 18 must implement the management setting: approved Apple Watches must be managed by an MDM.
CM-6 - Medium - CCI-000366 - V-268049 - SV-268049r1031229_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-012650
Vuln IDs
  • V-268049
Rule IDs
  • SV-268049r1031229_rule
Authorizing official (AO) approval is required before an Apple Watch (DOD-owned or personally owned) can be paired with a DOD-owned iPhone to ensure the AO has evaluated the risk in having sensitive DOD data transferred to and stored on an Apple Watch in their operational environment. SFRID: FMT_SMF.1.1 #47
Checks: C-71973r1030898_chk

Determine if the site AO has approved the use of Apple Watch with DOD-owned iPhones. Look for a document showing approval. If not approved, this requirement is not applicable. If approved, verify on the MDM server that the Apple Watch is being managed by the MDM. Have the MDM system administrator show that the Apple Watch is being managed by the MDM. If the AO has approved pairing an Apple Watch with a DOD-owned iPhone and the Apple Watch is not being managed by the site MDM server, this is a finding. Note: The iPhone paired to the Apple Watch must be supervised for the MDM to manage the Apple Watch.

Fix: F-71876r1030899_fix

If the AO has not approved the use of Apple Watch with DOD-owned iPhones, this requirement is not applicable. If the AO has approved the use of Apple Watch with DOD-owned iPhones, enroll the Apple Watch in MDM management. Note: The iPhone paired to the Apple Watch must be supervised for the MDM to manage the Apple Watch.

b
Apple iOS/iPadOS 18 must disable "Password AutoFill" in browsers and applications.
CM-6 - Medium - CCI-000366 - V-268050 - SV-268050r1031230_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-012700
Vuln IDs
  • V-268050
Rule IDs
  • SV-268050r1031230_rule
The AutoFill functionality in browsers and applications allows the user to complete a form that contains sensitive information, such as PII, without previous knowledge of the information. By allowing the use of the AutoFill functionality, an adversary who learns a user's iPhone and iPad passcode, or who otherwise is able to unlock the device, may be able to further breach other systems by relying on the AutoFill feature to provide information unknown to the adversary. By disabling the AutoFill functionality, the risk of an adversary gaining further information about the device's user or compromising other systems is significantly mitigated. SFRID: FMT_SMF.1.1 #47
Checks: C-71974r1030901_chk

This 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, review configuration settings to confirm "Password AutoFill is not allowed" is disabled. This check procedure is performed on both the iOS/iPadOS device management tool and the iPhone and iPad. 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 "Password AutoFill is not allowed" is unchecked. On the iPhone/iPad: 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 "Password AutoFill is not allowed" is listed. If "Password AutoFill is not allowed" is not enabled in the iOS/iPadOS management tool and on the Apple device, this is a finding.

Fix: F-71877r1030902_fix

Install a configuration profile to disable allow Password AutoFill in the management tool. This a supervised-only control.

b
Apple iOS/iPadOS 18 must disable "Allow setting up new nearby devices".
CM-6 - Medium - CCI-000366 - V-268051 - SV-268051r1031231_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-012800
Vuln IDs
  • V-268051
Rule IDs
  • SV-268051r1031231_rule
This control allows Apple device users to request passwords from nearby devices. This could lead to a compromise of the device password with an unauthorized person or device. DOD Apple device passwords must not be shared. SFRID: FMT_SMF.1.1 #47
Checks: C-71975r1030904_chk

This 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, review configuration settings to confirm "Allow setting up new nearby devices" is disabled. This check procedure is performed on both the iOS/iPadOS device management tool and the iPhone and iPad. 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 "Proximity setup to a new device is not allowed" 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 management tool containing the restrictions policy. 5. Tap "Restrictions". 6. Verify "Proximity setup to a new device is not allowed" is not listed. If "Proximity setup to a new device is not allowed" is disabled in the iOS/iPadOS management tool and on the Apple device, this is a finding.

Fix: F-71878r1030905_fix

Install a configuration profile to disable allow setting up new nearby devices in the management tool. This a supervised-only control.

b
Apple iOS/iPadOS 18 must disable password proximity requests.
CM-6 - Medium - CCI-000366 - V-268052 - SV-268052r1031232_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-012900
Vuln IDs
  • V-268052
Rule IDs
  • SV-268052r1031232_rule
This control allows one Apple device to be notified to share its password with a nearby device. This could lead to a compromise of the device password with an unauthorized person or device. DOD Apple device passwords must not be shared. SFRID: FMT_SMF.1.1 #47
Checks: C-71976r1030907_chk

This 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, review configuration settings to confirm "Allow Password Proximity Requests" is disabled. This check procedure is performed on both the device management tool and the iPhone and iPad. 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 management tool, verify "Allow Password Proximity Requests" is unchecked. On the iPhone and 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 "Proximity password requests not allowed" is listed. If "Proximity password requests not allowed" is not listed in the management tool and on the Apple device, this is a finding.

Fix: F-71879r1030908_fix

Install a configuration profile to disable "allow password proximity requests" in the management tool. This a supervised-only control.

b
Apple iOS/iPadOS 18 must disable password sharing.
CM-6 - Medium - CCI-000366 - V-268053 - SV-268053r1031233_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-013000
Vuln IDs
  • V-268053
Rule IDs
  • SV-268053r1031233_rule
This control allows sharing passwords between Apple devices using AirDrop. This could lead to a compromise of the device password with an unauthorized person or device. DOD Apple device passwords must not be shared. SFRID: FMT_SMF.1.1 #47
Checks: C-71977r1030910_chk

This 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, review configuration settings to confirm "Password Sharing is not allowed" is enabled. This check procedure is performed on both the device management tool and the iPhone and iPad. 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 "Password Sharing is not allowed" is checked. On the iPhone/iPad: 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 "Password Sharing is not allowed" is listed. If "Password Sharing is not allowed" is not enabled in the management tool and on the Apple device, this is a finding.

Fix: F-71880r1030911_fix

Install a configuration profile to disable allow password proximity sharing in the management tool. This a supervised-only control.

a
Apple iOS/iPadOS 18 must disable "Find My Friends" in the "Find My" app.
CM-6 - Low - CCI-000366 - V-268054 - SV-268054r1031234_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
AIOS-18-013100
Vuln IDs
  • V-268054
Rule IDs
  • SV-268054r1031234_rule
This control does not share a DOD user's location but encourages location sharing between DOD mobile device users, which can lead to operational security (OPSEC) risks. Sharing the location of a DOD mobile device is a violation of AIOS-17-011700. SFRID: FMT_SMF.1.1 #47
Checks: C-71978r1030913_chk

This 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, review configuration settings to confirm "Find My Friends" is disabled. This check procedure is performed on both the device management tool and the iPhone and iPad. 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 Find My Friends" and "Allow modifying Find My Friends" are unchecked. On the iPhone/iPad: 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 "Allow Find My Friends" is not listed and "Changing Find My Friends settings not allowed" is listed. If "Allow Find My Friends" and "Allow modifying Find My Friends" are not disabled in the management tool and on the Apple device "Allow Find My Friends" is listed and "Changing Find My Friends settings not allowed" is not listed, this is a finding.

Fix: F-71881r1030914_fix

Install a configuration profile to disable "Find My Friends" in the Find My app and "Allow modifying Find My Friends" in the management tool. This a supervised-only control.

b
The Apple iOS/iPadOS 18 must be supervised by the MDM.
CM-6 - Medium - CCI-000366 - V-268055 - SV-268055r1031235_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-013200
Vuln IDs
  • V-268055
Rule IDs
  • SV-268055r1031235_rule
When an iOS/iPadOS is not supervised, the DOD mobile service provider cannot control when new iOS/iPadOS updates are installed on site-managed devices. Most updates should be installed immediately to mitigate new security vulnerabilities, while some sites need to test each update prior to installation to ensure critical missions are not adversely impacted by the update. Several password and data protection controls can be implemented only when an Apple device is supervised. SFRID: FMT_SMF.1.1 #47
Checks: C-71979r1030916_chk

Review configuration settings to confirm site-managed iOS/iPadOS devices are supervised. This check procedure is performed on both the Apple iOS/iPadOS management tool and the iPhone and iPad. 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 management tool, verify all managed Apple devices are supervised (verification procedure will vary by MDM product). Note: If the Apple device is not managed by an MDM and supervision is set up via Apple Configurator, this procedure is not applicable. On the iPhone and iPad: 1. Open the Settings app. 2. Verify a message similar to the following appears on the screen: "This iPad is supervised by (name of site DOD mobile service provider)." If site-managed iOS/iPadOS devices are not supervised, this is a finding.

Fix: F-71882r1030917_fix

Use one of the following methods to supervise iOS and iPadOS devices managed by the DOD mobile service provider. Method 1: - Register all current and new iOS and iPadOS devices in the DOD mobile service provider's Automated Device Management/Apple Business Manager (ABM) account. - Enable supervision of managed iOS/iPadOS devices in the MDM. Method 2: - Configure each iOS/iPadOS device using the Apple Configurator tool for Supervision. - This method is usually only appropriate when MDM management of the DOD Apple device is not appropriate or an older device cannot be registered in ABM.

b
Apple iOS/iPadOS 18 must disable "Allow USB drive access in Files app" if the authorizing official (AO) has not approved the use of DOD-approved USB storage drives with iOS/iPadOS devices.
SC-4 - Medium - CCI-001090 - V-268056 - SV-268056r1031236_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
AIOS-18-013300
Vuln IDs
  • V-268056
Rule IDs
  • SV-268056r1031236_rule
Unauthorized use of USB storage drives could lead to the introduction of malware or unauthorized software into the DOD IT infrastructure and compromise of sensitive DOD information and systems. SFRID: FMT_SMF.1.1 #47
Checks: C-71980r1030919_chk

This requirement is not applicable if the AO has approved the use of USB drives to load files to Apple devices. The approval must be in writing and include which USB storage devices are approved for use. If the AO has not approved the use of USB drives to load files to Apple devices, use the following procedures to verify compliance. This 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, review configuration settings to confirm "Allow USB drive access in Files app" is disabled. This check procedure is performed on both the device management tool and the iPhone and iPad. 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 management tool, verify "Allow USB drive access in Files app" is unchecked. On the iPhone and 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 "USB drives not accessible in Files app" is listed. If "Allow USB drive access in Files app" is not disabled in the management tool and "USB drives not accessible in Files app" is not listed in the Restrictions profile on the Apple device, this is a finding.

Fix: F-71883r1030920_fix

If the AO has not approved the use of USB drives to load files to Apple devices, install a configuration profile to disable "Allow USB drive access in Files app".

a
The Apple iOS must be configured to disable automatic transfer of diagnostic data to an external device other than an MDM service with which the device has enrolled.
SC-28 - Low - CCI-001199 - V-268057 - SV-268057r1031237_rule
RMF Control
SC-28
Severity
Low
CCI
CCI-001199
Version
AIOS-18-013400
Vuln IDs
  • V-268057
Rule IDs
  • SV-268057r1031237_rule
Many software systems automatically send diagnostic data to the manufacturer or a third-party. This data enables the developers to understand real-world field behavior and improve the product based on that information. Unfortunately, it can also reveal information about what DOD users are doing with the systems and what causes them to fail. An adversary embedded within the software development team or elsewhere could use the information acquired to breach mobile operating system security. Disabling automatic transfer of such information mitigates this risk. SFRID: FMT_SMF.1.1 #47a
Checks: C-71981r1030922_chk

Review configuration settings to confirm "Allow sending diagnostic and usage data to Apple" is disabled. This check procedure is performed on both the iOS management tool and the 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 iOS management tool, verify "Allow sending diagnostic and usage data to Apple" is unchecked. Alternatively, verify the text "<key>allowDiagnosticSubmission</key><false/>" appears in the configuration profile (.mobileconfig file). On the Apple iOS 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 management policy. 5. Tap "Restrictions". 6. Verify "Diagnostic submission not allowed". Note: This setting also disables "Share With App Developers". If "Allow sending diagnostic and usage data to Apple" is checked in the iOS management tool, "<key>allowDiagnosticSubmission</key><true/>" appears in the configuration profile, or the restrictions policy on the Apple iOS device from the Apple iOS management tool does not list "Diagnostic submission not allowed", this is a finding.

Fix: F-71884r1030923_fix

Install a configuration profile to disable sending diagnostic data to an organization other than DOD.

b
Apple iOS must implement the management setting: not allow a user to remove Apple iOS configuration profiles that enforce DOD security requirements.
CM-6 - Medium - CCI-000366 - V-268058 - SV-268058r1031238_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-013500
Vuln IDs
  • V-268058
Rule IDs
  • SV-268058r1031238_rule
Configuration profiles define security policies on Apple iOS devices. If a user is able to remove a configuration profile, the user can then change the configuration that had been enforced by that policy. Relaxing security policies may introduce vulnerabilities the profiles had mitigated. Configuring a profile to never be removed mitigates this risk. SFRID: FMT_SMF.1.1 #47
Checks: C-71982r1030925_chk

Review configuration settings to confirm configuration profiles are not removable. This check procedure is performed on both the Apple iOS management tool and the Apple iOS device. The procedures below assume the site is not enrolled in Apple's Automatic Device Enrollment and are not applicable to devices under MDM management. 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 "Security" is set to "Never" and "Automatically Remove Profile" is set to "Never". On the Apple iOS device: 1. Open the Settings app. 2. Tap "General". 3. Tap "VPN & Device Management". 4. Tap each Configuration Profile from the Apple iOS management tool that contains the restrictions for the device. 5. Verify the "Remove Profile" button is not present. If on the Apple iOS management tool or the iOS device the "Remove Profile" button is available on the configuration profile, this is a finding.

Fix: F-71885r1030926_fix

Configure the Apple iOS configuration profile so that it can never be removed. The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider. When using Apple Configurator, under "General Security", configure "Security" to "Never" and "Automatically Remove Profile" to "Never".

b
Apple iOS/iPadOS 18 must disable "Allow network drive access in Files access".
CM-6 - Medium - CCI-000366 - V-268059 - SV-268059r1031239_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-014300
Vuln IDs
  • V-268059
Rule IDs
  • SV-268059r1031239_rule
Allowing network drive access by the Files app could lead to the introduction of malware or unauthorized software into the DOD IT infrastructure and compromise of sensitive DOD information and systems. SFRID: FMT_SMF.1.1 #47
Checks: C-71983r1030928_chk

This a supervised-only control. If the iPhone or iPad being reviewed is not supervised by the MDM, this control is automatically a finding. This check procedure is performed on both the device management tool and the iPhone and iPad. 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 management tool, verify "Allow network drive access in Files access" is unchecked. On the iPhone and 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 "Network drives not accessible in Files app" is listed. If "Allow network drive access in Files access" is not disabled in the management tool and "Network drives not accessible in Files app" is not listed in Profile Restrictions on the Apple device, this is a finding.

Fix: F-71886r1030929_fix

Install a configuration profile to disable "Allow network drive access in Files access".

b
Apple iOS/iPadOS 18 must disable connections to Siri servers for the purpose of dictation.
CM-6 - Medium - CCI-000366 - V-268060 - SV-268060r1031240_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-014400
Vuln IDs
  • V-268060
Rule IDs
  • SV-268060r1031240_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. Dictation information could contain sensitive DOD information; therefore, should not leave the DOD control. SFRID: FMT_SMF.1.1 #47
Checks: C-71984r1030931_chk

If the iPhone or iPad being reviewed is supervised by the MDM, review configuration settings to confirm "Disable connections to Siri servers for the purpose of dictation" is disabled. This check procedure is performed on the device management tool. 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 management tool, verify "Disable connections to Siri servers for the purpose of dictation" is checked. If connections to Siri servers are not disabled for dictation, this is a finding.

Fix: F-71887r1030932_fix

Configure the Apple iOS configuration profile to disable connections to Siri servers for the purpose of dictation. This a supervised-only control. The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider. In the MDM console, select "disable connections to Siri servers for the purpose of dictation".

b
Apple iOS/iPadOS 18 must disable connections to Siri servers for the purpose of translation.
CM-6 - Medium - CCI-000366 - V-268061 - SV-268061r1031241_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-014500
Vuln IDs
  • V-268061
Rule IDs
  • SV-268061r1031241_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. Translation information could contain sensitive DOD information and therefore should not leave the DOD control. SFRID: FMT_SMF.1.1 #47
Checks: C-71985r1030934_chk

This check procedure is performed on the device management tool. 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 management tool, verify "Disable connections to Siri servers for the purpose of translation" is checked. If connections to Siri servers are not disabled for translation, this is a finding.

Fix: F-71888r1030935_fix

Configure the Apple iOS configuration profile to disable connections to Siri servers for the purpose of translation. The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider. In the MDM console, select "disable connections to Siri servers for the purpose of translation".

b
Apple iOS/iPadOS 18 must disable copy/paste of data from managed to unmanaged applications.
CM-6 - Medium - CCI-000366 - V-268062 - SV-268062r1031242_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-014600
Vuln IDs
  • V-268062
Rule IDs
  • SV-268062r1031242_rule
If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to compromise DOD sensitive information. SFRID: FMT_SMF.1.1 #47
Checks: C-71986r1030937_chk

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 management tool, verify "Require managed pasteboard" is set to "True". If "Require managed pasteboard" is not set to "True", this is a finding.

Fix: F-71889r1030938_fix

Configure the Apple iOS configuration profile to disable copy/paste of data from managed to unmanaged applications. The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider. In the MDM console, set "Require managed pasteboard" to "True".

b
Apple iOS/iPadOS 18 must have DOD root and intermediate PKI certificates installed.
CM-6 - Medium - CCI-000370 - V-268063 - SV-268063r1031243_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000370
Version
AIOS-18-014700
Vuln IDs
  • V-268063
Rule IDs
  • SV-268063r1031243_rule
DOD root and intermediate PKI certificates are used to verify the authenticity of PKI certificates of users and web services. If the user is allowed to remove root and intermediate certificates, the user could allow an adversary to falsely sign a certificate in such a way that it could not be detected. Restricting the ability to remove DOD root and intermediate PKI certificates to the administrator mitigates this risk. SFRID: FMT_MOF_EXT.1.2 #47
Checks: C-71987r1030940_chk

Verify DOD intermediate and root certificates have been installed on Apple devices. In the iOS management tool, verify the DOD intermediate and root certificates are installed on the Apple device. On the iPhone and 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. Tap "More Details". 7. Verify the DOD intermediate and root certificates are listed. If DOD intermediate and root certificates are not installed on the Apple device, this is a finding.

Fix: F-71890r1030941_fix

Install DOD intermediate and root certificates on managed mobile devices using the MDM.

b
Apple iOS/iPadOS 18 must be configured to disable "Auto Unlock" of the iPhone by an Apple Watch.
IA-2 - Medium - CCI-000765 - V-268064 - SV-268064r1031244_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000765
Version
AIOS-18-014800
Vuln IDs
  • V-268064
Rule IDs
  • SV-268064r1031244_rule
Auto Unlock allows an Apple Watch to automatically unlock an iPhone or Mac when in close proximity (not available for iPad). This feature allows the iPhone/Mac to be unlocked without the user entering the device passcode, which may lead to unauthorized users access to the iPhone/Mac and sensitive DOD data. This control is not applicable if the authorizing official (AO) has approved the use of Apple Watches. SFRID: FMT_MOF_EXT.1.2 #47
Checks: C-71988r1030943_chk

Determine if the site AO has approved the use of Apple Watch with DOD-owned iPhones. Look for a document showing approval. If not approved, review configuration settings to confirm "Allow Auto Unlock" is disabled. If approved, this requirement is not applicable. This check procedure is performed on the device management tool. 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 management tool, verify "Allow auto unlock" is not checked. If Allow auto unlock is enabled, this is a finding. This requirement will become "Supervised only" in a future iOS/iPadOS release.

Fix: F-71891r1030944_fix

If the AO has not approved the use of Apple Watch with DOD-owned iPhones, configure the Apple iOS configuration profile to disable "Allow auto unlock". The procedure for implementing this control will vary depending on the MDM/EMM used by the mobile service provider. In the MDM console, set "Allow auto unlock" to "False". This requirement will become "Supervised only" in a future iOS/iPadOS release.

b
Apple iOS/iPadOS 18 must disable the installation of alternative marketplace apps.
CM-6 - Medium - CCI-000366 - V-268065 - SV-268065r1031245_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-014900
Vuln IDs
  • V-268065
Rule IDs
  • SV-268065r1031245_rule
Forcing all applications to be installed from authorized application repositories can prevent unauthorized and malicious applications from being installed and executed on mobile devices. Allowing such installations and executions could cause a compromise of DOD data accessible by these unauthorized/malicious applications. SFRID: FMT_MOF_EXT.1.2 #47
Checks: C-71989r1030946_chk

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. This check procedure is performed on both the device management tool and the iPhone and iPad. 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 management tool, verify "Allow marketplace app installation" is unchecked. On the iPhone and 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 "Marketplace app installation not allowed" is listed. If "Marketplace app installation" is not disabled in the management tool, this is a finding.

Fix: F-71892r1030947_fix

Install a configuration profile to disable the installation of alternative marketplace apps. This a supervised-only control.

b
Apple iOS/iPadOS 18 must disable app installation from a website.
CM-6 - Medium - CCI-000366 - V-268066 - SV-268066r1031246_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-015000
Vuln IDs
  • V-268066
Rule IDs
  • SV-268066r1031246_rule
Forcing all applications to be installed from authorized application repositories can prevent unauthorized and malicious applications from being installed and executed on mobile devices. Allowing such installations and executions could cause a compromise of DOD data accessible by these unauthorized/malicious applications. SFRID: FMT_MOF_EXT.1.2 #47
Checks: C-71990r1030949_chk

This check procedure is performed on both the device management tool and the iPhone and iPad. 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 management tool, verify "Allow app installation from website" is unchecked. On the iPhone and 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 "Web app distribution not allowed" is not listed. If "Allow app installation from website" is not disabled in the management tool, this is a finding.

Fix: F-71893r1030950_fix

Install a configuration profile to disable app installation from a website.

b
Apple iOS/iPadOS 18 must delete eSIM content when the device is erased.
MP-6 - Medium - CCI-001033 - V-268067 - SV-268067r1031247_rule
RMF Control
MP-6
Severity
Medium
CCI
CCI-001033
Version
AIOS-18-015100
Vuln IDs
  • V-268067
Rule IDs
  • SV-268067r1031247_rule
An eSIM may contain sensitive DOD data and must be wiped of data when the mobile device is wiped to protect sensitive data from exposure. SFRID: FMT_MOF_EXT.1.2 #47
Checks: C-71991r1030952_chk

This check procedure is performed on both the device management tool and the iPhone and iPad. 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 management tool, verify "Preserve eSIM content when device is erased" is unchecked. On the iPhone and 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 "Preserve eSIM content when device is erased" is not listed. If "Preserve eSIM content when device is erased" is not disabled in the management tool, this is a finding.

Fix: F-71894r1030953_fix

Install a configuration profile to delete eSIM content when the device is erased.

b
Apple iOS/iPadOS 18 must disable ChatGPT connection for Apple Intelligence.
CM-6 - Medium - CCI-000366 - V-268068 - SV-268068r1031262_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-015400
Vuln IDs
  • V-268068
Rule IDs
  • SV-268068r1031262_rule
The ChatGPT feature of Apple Intelligence allows DOD information to be downloaded from the DOD iPhone/iPad and processed by the ChatGPT application in the cloud. The ChatGPT feature of Apple Intelligence increases the risk of compromise of sensitive DOD information. SFRID: FMT_MOF_EXT.1.2 #47
Checks: C-71992r1030955_chk

Apple Intelligence support for ChatGPT is not expected to be available until iOS/iPad 18.1 and will be available only on specific iPhone and iPad models. This check procedure is performed on the device management tool. 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 management tool, verify "Allow ChatGPT" is unchecked. If "Allow ChatGPT" is not disabled in the management tool, this is a finding. Note: As of the publication date of this STIG version (V1R1), the exact name and logic of the ChatGPT management key is not available. When ChatGPT support is released by Apple (expected in iOS/iPadOS 18.1), the required configuration could be either "enable" or "disable". The intent of this requirement is to disable Apple Intelligence ChatGPT access.

Fix: F-71895r1030956_fix

Apple Intelligence support for ChatGPT is not expected to be available until iOS/iPad 18.1 and will be available only on specific iPhone and iPad models. Install a configuration profile to disable ChatGPT connection for Apple Intelligence.

b
Apple iOS/iPadOS 18 must disable the download of iOS/iPadOS beta updates.
CM-6 - Medium - CCI-000366 - V-269568 - SV-269568r1031249_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
AIOS-18-015500
Vuln IDs
  • V-269568
Rule IDs
  • SV-269568r1031249_rule
Beta operating system updates may contain features that could lead to the compromise of sensitive DOD information or provide a vector for the attack on the DOD network. The current STIG will not normally provide controls to disable these unsecure features.
Checks: C-73601r1031106_chk

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. This check procedure is performed on both the device management tool and the iPhone and iPad. 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 management tool, verify "Allow installing configuration profiles (supervised only)" is unchecked. On the iPhone and 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 "Installing configuration profiles not allowed" is listed. If "Allow installing configuration profiles" is not disabled in the management tool, this is a finding.

Fix: F-73502r1031107_fix

Install a configuration profile to disable the installation of new configuration profiles. This will block the download and installation of beta iOS and iPadOS updates. This is a supervised-only control.