National Information Assurance Partnership Common Criteria Evaluation and Validation Scheme Validation Report Apple iPad and iPhone Mobile Devices with iOS 12 Report Number: CCEVS-VR-10937-2019 Dated: March 14, 2019 Version: 0.2 National Institute of Standards and Technology National Security Agency Information Technology Laboratory Information Assurance Directorate 100 Bureau Drive 9800 Savage Road STE 6940 Gaithersburg, MD 20899 Fort George G. Meade, MD 20755-6940 Validation Report, Version 0.2 March 14, 2019 ii Acknowledgements Validation Team Sheldon A. Durrant Michelle S. Carlson John Butterworth MITRE Corporation Kenneth Stutterheim The Aerospace Corporation Common Criteria Testing Laboratory Trang Huynh King Ables Quentin Gouchet Stephan Mueller atsec information security corporation Austin, TX Validation Report, Version 0.2 March 14, 2019 iii Table of Contents 1. Executive Summary.................................................................................................... 4 2. Identification............................................................................................................... 3 3. Architectural Information ........................................................................................... 5 TOE Evaluated Configuration ........................................................................................ 6 Physical Scope of the TOE ............................................................................................. 8 Un-evaluated Functionality............................................................................................. 9 4. Security Policy............................................................................................................ 9 Security Audit............................................................................................................... 10 Cryptographic Support.................................................................................................. 10 User Data Protection..................................................................................................... 11 Identification and Authentication ................................................................................. 11 Security Management ................................................................................................... 12 Protection of the TSF.................................................................................................... 12 TOE Access .................................................................................................................. 12 Trusted Path/Channels .................................................................................................. 12 5. Assumptions.............................................................................................................. 13 Clarification of Scope ................................................................................................... 13 6. Documentation.......................................................................................................... 14 Design Documentation.................................................................................................. 14 Guidance Documentation.............................................................................................. 14 7. IT Product Testing .................................................................................................... 15 Developer Testing......................................................................................................... 15 Evaluation Team Independent Testing ......................................................................... 16 8. Evaluated Configuration ........................................................................................... 17 9. Results of the Evaluation .......................................................................................... 17 Evaluation of the Security Target (ASE)...................................................................... 17 Evaluation of the Development Documentation (ADV) .............................................. 18 Evaluation of the Guidance Documents (AGD) ........................................................... 18 Evaluation of the Life Cycle Support Activities (ALC) ............................................... 18 Evaluation of the Test Documentation and the Test Activity (ATE) ........................... 19 Validation Report, Version 0.2 March 14, 2019 iv Vulnerability Assessment Activity (VAN)................................................................... 19 Summary of Evaluation Results.................................................................................... 20 10. Validator Comments/Recommendations .............................................................. 20 11. Annexes................................................................................................................. 20 12. Security Target...................................................................................................... 21 13. Glossary ................................................................................................................ 21 14. Bibliography ......................................................................................................... 22 1. Executive Summary This report documents the assessment of the National Information Assurance Partnership (NIAP) validation team of the evaluation of iPad and iPhone devices with Apple iOS 12 provided by Apple Inc. It presents the evaluation results, their justifications, and the conformance results. This Validation Report is not an endorsement of the Target of Evaluation (TOE) by any agency of the U.S. government, and no warranty is either expressed or implied. The evaluation was performed by the Common Criteria Testing Laboratory (CCTL) atsec information security corporation in Austin, TX, United States of America, and was completed in March, 2019. The information in this report is largely derived from the Evaluation Technical Report (ETR) and associated test reports, all written by the CCTL, atsec information security corporation. The evaluation determined that the product is both Common Criteria (CC) Part 2 Extended and Part 3 Extended, and meets the assurance requirements given in:  The Mobile Device Fundamentals Protection Profile Version 3.1, [PP_MD_V3.1]; o The Extended Package for Mobile Device Management Agents Version 3.0 [EP_MDM_AGENT_V3.0]; o The General Purpose Operating Systems Protection Profile/ Mobile Device Fundamentals Protection Profile Extended Package (EP) Wireless Local Area Network {WLAN} Clients, Version 1.0, [PP_WLAN_CLI_EP_V1.0]; and o The PP-Module for Virtual Private Network [VPN] Clients, Version 2.1, [MOD_VPN_CLI_V2.1]. The TOE is Apple iPad and iPhone Mobile Devices with iOS 12 executing on the following platforms:  iPhone 6 Plus / iPhone 6 (A8 processor)  iPhone 6s Plus / iPhone 6s (A9 processor) Validation Report, Version 0.2 March 14, 2019 2  iPhone 7 / iPhone 7 Plus (A10 Fusion processor)  iPhone 8 / iPhone 8 Plus (A11 Bionic processor)  iPhone X (A11 Bionic processor)  iPhone XS (A12 Bionic processor)  iPhone XS Max (A12 Bionic processor)  iPhone XR (A12 Bionic processor)  iPhone SE (A9 processor)  iPad mini 4 (A8 processor)  iPad Air 2 (A8X processor)  iPad 9.7-inch (A9 processor)  iPad 9.7-inch (A10 Fusion procession)  iPad Pro 9.7-inch (A9X processor)  iPad Pro 12.9-inch (A9X processor)  iPad Pro 12.9-inch (A10X Fusion processor)  iPad Pro 10.5-inch (A10X Fusion processor)  iPad Pro 11-inch (A12X Bionic processor)  iPad Pro 12.9-inch (A12X Bionic processor) The TOE identified in this Validation Report has been evaluated at a NIAP approved CCTL using the “Common Methodology for IT Security Evaluation (Version 3.1, Rev. 5)” (CEM) for conformance to the “Common Criteria for IT Security Evaluation (Version 3.1, Rev. 5)” (CC) and the Assurance Activities (AA) of the aforementioned Protection Profile, Extended Packages, and PP Module. This Validation Report applies only to the specific version of the TOE as evaluated. The evaluation has been conducted in accordance with the provisions of the NIAP Common Criteria Evaluation and Validation Scheme (CCEVS) and the conclusions of the testing laboratory in the evaluation technical report are consistent with the evidence provided. The validation team monitored the activities of the evaluation team, reviewed testing activities, provided guidance on technical issues and evaluation processes, and reviewed the individual work units and successive versions of the ETR. The validation team found that the evaluation showed that the product satisfies all the functional requirements and assurance requirements stated in the Security Target (ST). The validation team concludes that the testing laboratory’s findings are accurate, the conclusions justified, and the conformance results are correct. The conclusions of the testing laboratory in the evaluation technical report are consistent with the evidence produced. The CCTL atsec information security corporation evaluation team concluded that the CC requirements specified by: Validation Report, Version 0.2 March 14, 2019 3  The Mobile Device Fundamentals Protection Profile Version 3.1, [PP_MD_V3.1]; o The Extended Package for Mobile Device Management Agents Version 3.0 [EP_MDM_AGENT_V3.0]; o The General Purpose Operating Systems Protection Profile/ Mobile Device Fundamentals Protection Profile Extended Package (EP) Wireless Local Area Network {WLAN} Clients, Version 1.0, [PP_WLAN_CLI_EP_V1.0]; and o The PP-Module for Virtual Private Network [VPN] Clients, Version 2.1, [MOD_VPN_CLI_V2.1]. have been met. The technical information included in this report was obtained from the Validation Report for Apple iPad and iPhone Devices with iOS 12 Security Target (ST) Version 1.6 and analysis performed by the Validation Team. 2. Identification The CCEVS is a joint National Security Agency (NSA) and National Institute of Standards and Technology (NIST) effort to establish commercial facilities to perform trusted product evaluations. Under this program, security evaluations are conducted by commercial testing laboratories called Common Criteria Testing Laboratories (CCTLs) using the Common Evaluation Methodology (CEM) for Evaluation Assurance in accordance with National Voluntary Laboratory Assessment Program (NVLAP) accreditation. The NIAP Validation Body assigns Validators to monitor the CCTLs to ensure quality and consistency across evaluations. Developers of information technology products desiring a security evaluation contract with a CCTL and pay a fee for their product’s evaluation. Upon successful completion of the evaluation, the product is added to NIAP’s Product Compliant List. The following table provides information needed to completely identify the product, including the following.  The Target of Evaluation (TOE): the fully qualified identifier of the product as evaluated  The Security Target (ST): describing the security features, claims, and assurances of the product  The conformance results of the evaluation  The Protection Profile (PP) to which the product is conformant  The organizations and individuals participating in the evaluation Item Identifier Evaluation Scheme United States NIAP Common Criteria Evaluation and Validation Scheme Validation Report, Version 0.2 March 14, 2019 4 Item Identifier TOE Apple iPad and iPhone Mobile Devices with iOS 12 executing on the following platforms:  iPhone 6 Plus / iPhone 6 (A8 processor)  iPhone 6s Plus / iPhone 6s (A9 processor)  iPhone 7 / iPhone 7 Plus (A10 Fusion processor)  iPhone 8 / iPhone 8 Plus (A11 Bionic processor)  iPhone X (A11 Bionic processor)  iPhone XS (A12 Bionic processor)  iPhone XS Max (A12 Bionic processor)  iPhone XR (A12 Bionic processor)  iPhone SE (A9 processor)  iPad mini 4 (A8 processor)  iPad Air 2 (A8X processor)  iPad 9.7-inch (A9 processor)  iPad 9.7-inch (A10 Fusion processor)  iPad Pro 9.7-inch (A9X processor)  iPad Pro 12.9-inch (A9X processor)  iPad Pro 12.9-inch (A10X Fusion processor)  iPad Pro 10.5-inch (A10X Fusion processor)  iPad Pro 11-inch (A12X Bionic processor)  iPad Pro 12.9-inch (A12X Bionic processor) PP  Protection Profile for Mobile Device Fundamentals Version 3.1, 16 June 2017  Extended Package for Mobile Device Management Agents Version 3.0, 21 November 2016  General Purpose Operating Systems Protection Profile/ Mobile Device Fundamentals Protection Profile Extended Package (EP) Wireless Local Area Network (WLAN) Clients, Version 1.0, dated 8 February, 2016  PP-Module for Virtual Private Network {VPN} Clients, Version 2.1, dated 5 October, 2017. ST Apple iPad and iPhone Mobile Devices with iOS 12 Security Target (ST) Version 1.6, dated 2019-03-12 ETR Evaluation Technical Report for a Target of Evaluation Apple iPad and iPhone Mobile Devices with iOS 12 CC Version Common Criteria for Information Technology Security Evaluation, Version 3.1, Revision 5 Validation Report, Version 0.2 March 14, 2019 5 Item Identifier Conformance Result CC Part 2 extended, CC Part 3 extended Sponsor Apple Inc. Developer Apple Inc. CCTL atsec information security corporation, Austin, TX CCEVS Validators Sheldon A. Durrant, Michelle S. Carlson, John Butterworth, MITRE Corporation Kenneth Stutterheim, The Aerospace Corporation 3. Architectural Information Note that the following architectural description is based on the description presented in the ST. The implementation of TOE architecture can be viewed as a set of layers. Lower layers contain fundamental services and technologies. Higher-level layers build upon the lower layers and provide more sophisticated services and technologies. These individual layers provide the following services. The Cocoa Touch layer contains key frameworks for building iOS apps. These frameworks define the appearance of applications (apps). The Media layer contains the graphics, audio, and video technologies you use to implement multimedia experiences in apps. The Core Services layer contains fundamental system services for apps. Key among these services are the Core Foundation and Foundation frameworks, which define the basic types that all apps use. This layer also contains individual technologies to support features such as location, iCloud, social media, and networking. This layer also implements data protection functions that allow apps that work with sensitive user data to take advantage of the built-in encryption available on some devices. The Core OS layer contains the low-level features that most other technologies are built upon. Situations where an app needs to explicitly deal with security or communications with an external hardware accessory, it does so by using the frameworks in this layer. Security related frameworks provided by this layer are as follows.  The Generic Security Services Framework, which provides services as specified in RFC 2743 (Generic Security Service Application Program Interface Version 2, Update 1) and RFC 4401 (Pseudo Random Function);  The Local Authentication Framework;  The Network Extension Framework, which provides support for configuring and controlling virtual private network (VPN) tunnels;  The Security Framework, which provides services to manage and store certificates, public and private keys, and trust policies. This framework also provides the Common Validation Report, Version 0.2 March 14, 2019 6 Crypto library for symmetric encryption and hash-based message authentication codes and  The System Framework, which provides the kernel environment, drivers, and low-level UNIX interfaces. The kernel manages the virtual memory system, threads, file system, network, and inter-process communication and is therefore responsible for separating apps from each other and controlling the use of low-level resources. The TOE may be managed by an MDM solution that enables an enterprise to control and administer the TOE instances that are enrolled in the MDM solution. TOE Evaluated Configuration The evaluation covers following Apple iPad and iPhone mobile devices running iOS 12 operating system as detailed in Table 1, below. Table 1: Devices covered by the evaluation Processor Device Name Model Number A8 iPhone 6 A1549 A1586 A1589 iPhone 6 Plus A1522 A1524 A1593 iPad mini 4 A1538 A1550 A8X iPad Air 2 A1566 A1567 A9 iPhone 6s A1633 A1688 A1691 A1700 iPhone 6s Plus A1634 A1687 A1690 A1699 A1700 iPhone SE A1662 A1723 Validation Report, Version 0.2 March 14, 2019 7 Processor Device Name Model Number A1724 iPad 9.7-inch (5th generation) A1822 A1823 A9X iPad Pro 12.9-inch A1584 A1652 iPad Pro 9.7-inch A1673 A1674 A1675 A10 Fusion iPhone 7 A1660 A1779 A1780 A1778 iPhone 7 Plus A1661 A1785 A1786 A1784 iPad 9.7-inch (6th generation) A1893 A1954 A10X Fusion iPad Pro 12.9-inch (2nd generation) A1670 A1671 A1821 (China) iPad Pro 10.5-inch A1701 A1852 A1709 A11 Bionic iPhone 8 A1863 A1906 A1907 A1905 iPhone 8 Plus A1864 A1898 A1899 A1897 iPhone X A1865 Validation Report, Version 0.2 March 14, 2019 8 Processor Device Name Model Number A1902 A1901 A12 Bionic iPhone XS A1920 A2097 A2098 A2099 A2100 (China) iPhone XS Max A1921 A2101 A2102 A2103 A2104 (China) iPhone XR A1984 A2105 A2106 A2107 A2108 (China) iPad Pro 11-inch A1934 A1979 (China) A1980 A2013 iPad Pro 12.9-inch A2014 A1876 A1895 A1983 (China) Physical Scope of the TOE The TOE is a Mobile Device which consists of a hardware platform and its system software. It provides wireless connectivity and includes software for VPN connections to access the protected enterprise network and other Mobile Devices. The TOE provides secured communication channels between itself and other trusted IT products using IEEE 802.11-2012, IEEE 802.1X, EAP-TLS, TLS, IPsec, Bluetooth, and NFC (iPhone devices only). Via the established network connection, the TOE can communicate with an MDM server allowing administrative control of the TOE. Validation Report, Version 0.2 March 14, 2019 9 Un-evaluated Functionality The following functions were not evaluated and are therefore not included in the secure configuration of the mobile devices.  Two-Factor Authentication Two-factor authentication is an extra layer of security for an Apple ID used in the Apple store, iCloud and other Apple services.  Bonjour Bonjour is Apple’s standards-based, zero configuration network protocol that lets devices find services on a network.  VPN Split Tunnel VPN split tunnel is not included in the evaluation, and must be disabled in the mobile device configurations to meet the requirements of this CC evaluation.  Siri Interface The Siri interface is capable of supporting commands related to configuration settings.  Shared iPad for education This multi-user configuration was not included in the evaluation and must not be used to meet the requirements of this CC evaluation.  Third-party MDM Agents Third-party applications are available that provide functionality as a mobile device MDM Agent. No third-party MDM Agent applications were included in the evaluation and are outside the scope of the evaluated configuration.  VPN Protocols and Authentication Methods The following Virtual Private Network (VPN) protocols are not included in the evaluation and must be disabled in the mobile device configurations that meet the requirements of this CC evaluation. o Cisco IPsec o Layer Two Tunneling Protocol (L2TP) over IPsec o Secure Sockets Layer (SSL) VPN o Shared secret authentication 4. Security Policy This section summaries the security functionality of the TOE including the following. Validation Report, Version 0.2 March 14, 2019 10 1. Security audit 2. Cryptographic support 3. User data protection 4. Identification and authentication 5. Security Management 6. Protection of the TSF (TOE Security Functionality) 7. TOE access 8. Trusted Path/Channels 9. Objective Requirements Security Audit The TOE provides the ability for responses to be sent from the MDM Device Agent to the MDM Server. These responses are configurable by the organization using a scripting language given in the Over-the-Air Profile Delivery and Configuration document. Cryptographic Support The TOE provides cryptographic services for the encryption of data-at rest, secure communication channels, and for use by applications. In addition, the TOE implements several cryptographic protocols that can be used to establish a trusted channel to other IT entities. As noted in the Security Target, section 1.5.2.1 the TOE provides cryptographic services via the following cryptographic modules.  Apple CoreCrypto Cryptographic Module for ARM, v9.0 (User Space)  Apple CoreCrypto Kernel Module for ARM, v9.0 (Kernel Space)  Apple Secure Key Store Cryptographic Module, v9.0 The Apple CoreCrypto Cryptographic Module v9.0 for ARM is for library use within the iOS user space. A second instance of this module is used within the secure enclave to provide cryptographic services there. The cryptographic functions provided include symmetric key generation, encryption and decryption using the Advanced Encryption Standard (AES) algorithms, asymmetric key generation and key establishment, cryptographic hashing, and keyed-hash message authentication. The functions listed below are used to implement the security protocols supported and the encryption of data-at-rest.  Random Number Generation  Symmetric Key Generation  Symmetric Encryption and Decryption Validation Report, Version 0.2 March 14, 2019 11  Digital Signature and Asymmetric Key Generation  Message Digest  Keyed Hash  PBKDF  EC Diffie-Hellman The Apple CoreCrypto Kernel Cryptographic Module for ARM, V9.0 is an iOS kernel extension optimized for library use within the iOS kernel. The Apple Secure Key Store Cryptographic Module, v9.0 is a single-chip standalone hardware cryptographic module running on a multi-chip device and provides services intended to protect data in transit and at rest. The cryptographic services provided by the module are:  data encryption / decryption  generation of hash values  key wrapping  random number generation  key generation  key derivation User Data Protection User data in files is protected using cryptographic functions, password protection and encryption to ensure data remains protected even if the device is lost or stolen. Critical data like passwords used by applications or application defined cryptographic keys can be stored in the key chain, which provides additional protection. Data can be protected such that only the application that owns the data can access it. The Secure Enclave Processor (SEP), is a separate CPU that executes a stand-alone operating system and provides protection for critical security data such as keys. Identification and Authentication Except for making emergency calls, answering calls, using the cameras and the flashlight, users need to authenticate using a passcode or a biometric (fingerprint or face). Also, upon power up, or after an update of iOS, the user is required to use the passcode authentication mechanism. The passcode can be configured to meet dedicated passcode policies, a maximum life time and a minimum length. Passcodes are obscured upon entry, and both the frequency of entering passcodes, as well as the number of consecutive failed attempts, is limited. The TOE enters a locked state after a configurable time of user inactivity and the user is required to either enter their passcode or use biometric authentication to unlock the TOE. Validation Report, Version 0.2 March 14, 2019 12 External entities connecting to the TOE via a secure protocol (Extensible Authentication Protocol Transport Layer Security (EAP-TLS), Transport Layer Security (TLS), IPsec) can be authenticated using X.509 certificates. Security Management Security functions can be managed either by the user or by an authorized administrator through a Mobile Device Management system. Table 4 of the Security Target identifies the functions that can be managed and if the management function can be performed by the user, the authorized administrator or both. Protection of the TSF Some of the functions the TOE implements to protect the TSF and TSF data are as follows.  Protection of cryptographic keys  Use of memory protection and processor states to separate applications and protect the TSF from unauthorized access to TSF resources  Digital signature protection of the TSF image  Software/firmware integrity self-test upon start-up  Digital signature verification for applications  Access to defined TSF data and TSF services only when the TOE is unlocked TOE Access The TSF provides functions to lock the TOE upon request and after an administrator- configurable time of inactivity. Access to the TOE via a wireless network is controlled by user/administrator defined policy. Trusted Path/Channels The TOE supports the use of the following cryptographic protocols that define a trusted channel between itself and another trusted IT product.  IEEE 802.11-2012  IEEE 802.1X  EAP-TLS (1.0, 1.1, 1.2)  TLS (1.2)  IPsec  Bluetooth (4.0, 4.2, 5.0) Validation Report, Version 0.2 March 14, 2019 13 5. Assumptions The Security Problem Definition, including the assumptions, may be found in  The Mobile Device Fundamentals Protection Profile Version 3.1, [PP_MD_V3.1]; o The Extended Package for Mobile Device Management Agents Version 3.0 [EP_MDM_AGENT_V3.0]; o The General Purpose Operating Systems Protection Profile/ Mobile Device Fundamentals Protection Profile Extended Package (EP) Wireless Local Area Network {WLAN} Clients, Version 1.0, [PP_WLAN_CLI_EP_V1.0]; and o The PP-Module for Virtual Private Network [VPN] Clients, Version 2.1, [MOD_VPN_CLI_V2.1]. That information has not been reproduced here and the respective documents should be consulted if there is interest in that material. Additionally, the Security Problem Description has been presented in the Security Target. Clarification of Scope The scope of this evaluation was limited to the functionality and assurances covered in  The Mobile Device Fundamentals Protection Profile Version 3.1, [PP_MD_V3.1]; o The Extended Package for Mobile Device Management Agents Version 3.0 [EP_MDM_AGENT_V3.0]; o The General Purpose Operating Systems Protection Profile/ Mobile Device Fundamentals Protection Profile Extended Package (EP) Wireless Local Area Network {WLAN} Clients, Version 1.0, [PP_WLAN_CLI_EP_V1.0]; and o The PP-Module for Virtual Private Network [VPN] Clients, Version 2.1, [MOD_VPN_CLI_V2.1] as described for this TOE in the Security Target. Other functionality included in the product was not assessed as part of this evaluation. All other functionality provided by the device needs to be assessed separately, and no further conclusions can be drawn about their effectiveness. All evaluations (and all products) have limitations, as well as potential misconceptions that need clarification. This text covers some of the more important limitations and clarifications of this evaluation. Note: As with any evaluation, this evaluation only shows that the evaluated configuration meets the security claims made with a certain level of assurance (the assurance activities specified in the PP_MD_V3.1, EP_MDM_AGENT_V3.0 and PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1) performed by the evaluation team. Validation Report, Version 0.2 March 14, 2019 14 6. Documentation The following documentation was used as evidence for the evaluation of the TOE. Design Documentation None Guidance Documentation The following documentation was used as evidence for the evaluation. Reference Document Name Location Device Administrator Guidance [CC_GUIDE] Apple iPad and iPhone Mobile Devices with iOS 12 Common Criteria Configuration Guide https://www.niap-ccevs.org/st/st_vid10937- agd.pdf [IOS_CFG] (2018-09-17) Configuration Profile Reference https://developer.apple.com/enterprise/docu mentation/Configuration-Profile- Reference.pdf Device User Guidance [iPhone_UG] iPhone User Guide for iOS https://help.apple.com/iphone/12/ [iPad_UG] iPad User Guide for iOS https://help.apple.com/ipad/12/ [PASSCODE-Help] (June 8, 2018) Use a passcode with your iPhone, iPad or iPod touch https://support.apple.com/en-us/HT204060 Mobile Device Management [AConfig] Apple Configurator Help (online guidance) https://help.apple.com/configurator/mac/ [DEP_Guide] (12-2017) Apple Deployment Programs Device Enrollment Program Guide https://www.apple.com/business/docs/DEP _Guide.pdf [PM_Help] (2018) Profile Manager Help https://help.apple.com/profilemanager/mac/ [IOS_MDM] (2018-09-17) Mobile Device Management Protocol Reference https://developer.apple.com/enterprise/docu mentation/MDM-Protocol-Reference.pdf Supporting Documents Validation Report, Version 0.2 March 14, 2019 15 Reference Document Name Location [iOSDeployRef] iOS Deployment Reference https://help.apple.com/deployment/ios/ [IOS_LOGS] Profiles and Logs https://developer.apple.com/bug- reporting/profiles-and-logs/?platforms=ios [LOGGING] Logging https://developer.apple.com/documentation/ os/logging?language=objc [MDM_SETTINGS_IT] Mobile device management settings for IT https://help.apple.com/deployment/mdm/ [TRUST_STORE] List of available trusted root certificates in iOS 12, macOS 10.14, watchOS 5, and tvOS 12 https://support.apple.com/en-us/HT209144 [MANAGE_CARDS] Manage the cards that you use with Apple Pay https://support.apple.com/en-us/HT205583 [PAY_SETUP] Set up Apple Pay https://support.apple.com/en-us/HT204506 App Developer Guidance [CKTSREF] (2018) Certificate, Key, and Trust Services https://developer.apple.com/documentation/ security/certificate_key_and_trust_services [KEYCHAINPG] (2018) Keychain Services Programming Guide https://developer.apple.com/documentation/ security/keychain_services [IOS_SEC] (September 2018) iOS Security (iOS 12) https://www.apple.com/business/site/docs/i OS_Security_Guide.pdf Any additional customer documentation delivered with the product or that may be available through download was not included in the scope of the evaluation and hence should not be relied upon when configuring or using the products in the evaluated configuration. 7. IT Product Testing This section describes the testing efforts of the developer and the Evaluation Team. Developer Testing No evidence of developer testing is required in the assurance activities for this product. Validation Report, Version 0.2 March 14, 2019 16 Evaluation Team Independent Testing The ST lists more devices compared to the subset of devices used for testing. The tests were performed by choosing one device from within each device family containing the hardware that affects TSF operation: the CPU. The other hardware configuration items such as form factor, size of non-volatile storage, presence or absence of modem devices, etc. do not affect the TSF, because all TSF functions are solely implemented in software that uses the process isolation and memory separation capabilities offered by the CPU. The software of the TOE is compiled once to form one set of binaries which run unchanged on all devices, and therefore on all CPUs equally. Based on this equivalency consideration, the evaluators used the hardware information provided by the developer, which lists all devices found in the ST and references the CPUs used by those devices. All devices listed in the ST use one of the following CPUs:  A8  A8X  A9  A9X  A10 Fusion  A10X Fusion  A11 Bionic  A11X Bionic  A12 Bionic  A12X Bionic The test system was set up according to a setup strategy that followed the evaluated configuration requirements specified in the guidance, supplemented by configurations required to perform testing. The testing was performed by setting up a Linux server that operated as a:  WLAN access point,  VPN endpoint,  VPN Gateway with the Strongswan IKE daemon and the Linux kernel IPsec support  Web server with TLS support,  Key generator, and  Bluetooth endpoint. The Linux system was equipped with the appropriate tools to perform sniffing of the different traffic types and analyzing the traffic, e.g., wireshark, tcpdump, bluez-hcidump. Validation Report, Version 0.2 March 14, 2019 17 Apple Configurator was used to create the configuration profiles/policies and deploy the profiles/policies onto the different test systems. An Apple system hosting the Apple Profile Manager software component acted as the MDM server to which the test devices connected. 8. Evaluated Configuration The guidance documentation provides specific instructions for creating configuration profiles that configure Apple iOS to comply with the functions defined in the Security Target. The evaluated configuration included the devices listed below running Apple iOS 12:  Apple device with CPU A8: Apple iPhone 6 Plus, iPhone 6  Apple device with CPU A8X: Apple iPad Air 2  Apple device with CPU A9: Apple iPhone 6s, iPhone 6s Plus  Apple device with CPU A9X: Apple iPad Pro 9.7-inch, iPad Pro 12.9-inch  Apple device with CPU A10 Fusion: Apple iPhone 7, iPhone 7 Plus  Apple device with CPU A10X Fusion: Apple iPad Pro 12.9-inch  Apple device with CPU A11 Bionic: Apple iPhone 8, iPhone 8 Plus, iPhone X  Apple device with CPU A12 Bionic: Apple iPhone Xs Max, iPhone Xs  Apple device with CPU A12X Bionic: Apple iPad Pro 11-inch 9. Results of the Evaluation The results of the assurance requirements are generally described in this section and are presented in detail in the proprietary ETR. All work units defined by CC Version 3.1 Revision 5 and CEM Version 3.1 Revision 5 and the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1 received a pass verdict. A verdict for an assurance component is determined by the resulting verdicts assigned to the corresponding evaluator action elements as well as assurance activities. The evaluation was conducted based upon CEM Version 3.1 Revision 5. The evaluation determined the TOE to be CC Part 2 extended and Part 3 extended, and to meet the assurance requirements defined by the PP_MD_V3.1, EP_MDM_AGENT_V3.0 PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1. Evaluation of the Security Target (ASE) The evaluation team applied each ASE CEM work unit and the assurance activity specified in the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1. The ST evaluation ensured the ST contains a description of the Validation Report, Version 0.2 March 14, 2019 18 environment in terms of policies and assumptions, a statement of security requirements claimed to be met by the Apple iOS 12 product that are consistent with the Common Criteria, and product security function descriptions that support the requirements. The validators reviewed the work of the evaluation team, and found that sufficient evidence and justification was provided by the evaluation team to confirm that the evaluation was conducted in accordance with the requirements of the CEM and the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1 and that the conclusion reached by the evaluation team was justified. Evaluation of the Development Documentation (ADV) The evaluation team applied each ADV CEM work unit. The evaluation team assessed the documentation and found it adequate to aid in understanding how the TSF provides the security functions. The documentation consists of a functional specification contained in the Security Target and Guidance documents. The validation team reviewed the work of the evaluation team and found that sufficient evidence and justification was provided by the evaluation team to confirm that the evaluation was conducted in accordance with the requirements of the CEM, and that the conclusion reached by the evaluation team was justified. Evaluation of the Guidance Documents (AGD) The evaluation team applied each AGD CEM work unit and assurance activity specified in the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1. The evaluation team ensured the adequacy of the user guidance in describing how to use the operational TOE. Additionally, the evaluation team ensured the adequacy of the administrator guidance in describing how to securely administer the TOE. Both the administrator and user guides were assessed during the design and testing phases of the evaluation to ensure they were complete. The validation team reviewed the work of the evaluation team, and found that sufficient evidence and justification was provided by the evaluation team to confirm that the evaluation was conducted in accordance with the requirements of the CEM and the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0 and MOD_VPN_CLI_V2.1 and that the conclusion reached by the evaluation team was justified. Evaluation of the Life Cycle Support Activities (ALC) The evaluation team applied each ALC CEM work unit and assurance activity specified in the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1. The evaluation team ensured the adequacy of the developer procedures to protect the TOE and the TOE documentation during TOE development and maintenance to reduce the risk of the introduction of TOE exploitable vulnerabilities during TOE development and maintenance. The ALC evaluation also ensured the TOE is identified such that the consumer can identify the evaluated TOE. Validation Report, Version 0.2 March 14, 2019 19 The validators reviewed the work of the evaluation team, and found that sufficient evidence and justification was provided by the evaluation team to confirm that the evaluation was conducted in accordance with the requirements of the CEM and the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1 and that the conclusion reached by the evaluation team was justified. Evaluation of the Test Documentation and the Test Activity (ATE) The evaluation team applied each ATE CEM work unit and assurance activity specified in the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1. The evaluation team ensured that the TOE performed as described in the design documentation and demonstrated that the TOE enforces the TOE security functional requirements. The evaluation team performed devised an independent set of tests as mandated by the protection profile. The validators reviewed the work of the evaluation team, and found that sufficient evidence and justification was provided by the evaluation team to confirm that the evaluation was conducted in accordance with the requirements of the CEM and the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1 and that the conclusion reached by the evaluation team was justified. Vulnerability Assessment Activity (VAN) The evaluation team applied each AVA CEM work unit and assurance activity specified in the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1, and MOD_VPN_CLI_V2.1. The vendor provided security updates to the TOE during the evaluation, therefore, while the tested version of the TOE did contain vulnerabilities, subsequent security updates, in line with the guidance provided in Scheme Policy Letter 15, fixed all known issues. The evaluation team ensured that the currently available version of the TOE does not contain known exploitable flaws or weaknesses in the TOE based upon the evaluation team’s vulnerability analysis, and the evaluation team’s performance of penetration tests. The evaluators searched for publicly known vulnerabilities applicable to iOS using the following sources:  Apple security content disclosure statements for releases of iOS 12 related to this evaluation  MITRE Common Vulnerabilities and Exposures (CVE) List  NIST National Vulnerability Database (NVD) using the following search terms:  ios ipad  ios iphone  ios core tls  ios core crypto  ios common crypto Validation Report, Version 0.2 March 14, 2019 20  ios http  ios https  ios tcp  ios ip  ios bluetooth  ios ipsec  ios vpn  ios mdm  ios mobile  broadcom wi-fi The evaluator's CVE search found no vulnerabilities apart from the ones listed in the developer’s security content disclosure statements, all of which have been fixed in subsequent releases of iOS. The validators reviewed the work of the evaluation team, and found that sufficient evidence and justification was provided by the evaluation team to confirm that the evaluation was conducted in accordance with the requirements of the CEM and the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1 and that the conclusion reached by the evaluation team was justified. Summary of Evaluation Results The evaluation team’s assessment of the evaluation evidence demonstrates that the claims in the ST are met. Additionally, the evaluation team’s performance of the testing defined by the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0 and MOD_VPN_CLI_V2.1 and the penetration test also demonstrated the accuracy of the claims in the ST. The validator’s assessment of the evidence provided by the evaluation team is that it demonstrates that the evaluation team followed the procedures defined in the CEM and the PP_MD_V3.1, EP_MDM_AGENT_V3.0, PP_WLAN_CLI_EP_V1.0, and MOD_VPN_CLI_V2.1 and correctly verified that the product meets the claims in the ST. 10.Validator Comments/Recommendations 11.Annexes Not applicable. Validation Report, Version 0.2 March 14, 2019 21 12.Security Target Apple iPad and iPhone Mobile Devices with iOS 12 Security Target (ST) Version 1.6, dated 2019-03-12 13.Glossary The following definitions are used throughout this document. AA Assurance Activity AES Advanced Encryption Standard ARM Advanced RISC Machine CC Common Criteria CCEVS Common Criteria Evaluation and Validation Scheme CDMA Code Division Multiple Access CCTL Common Criteria Testing Laboratory—An IT security evaluation facility accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) and approved by the CCEVS Validation Body to conduct Common Criteria-based evaluations. CEM Common Criteria Evaluation Methodology CPU Central Processing Unit Conformance The ability to demonstrate in an unambiguous way that a given implementation is correct with respect to the formal model. EAP-TLS Extensible Authentication Protocol Transport Layer Security EC Elliptic Curve EP Extended Package (for a Protection Profile) ETR Evaluation Technical Report Evaluation The assessment of an IT product against the Common Criteria using the Common Criteria Evaluation Methodology to determine whether or not the claims made are justified; or the assessment of a protection profile against the Common Criteria using the Common Evaluation Methodology to determine if the Profile is complete, consistent, technically sound and hence suitable for use as a statement of requirements for one or more TOEs that may be evaluated. Evaluation Evidence Any tangible resource (information) required from the sponsor or developer by the evaluator to perform one or more evaluation activities. GSM Global System for Mobile Communication HKDF HMAC-based Extract-and-Expand Key Derivation Function HMAC Keyed-hash Message Authentication Code IETF Internet Engineering Task Force IKE Internet Key Exchange Validation Report, Version 0.2 March 14, 2019 22 LTE Long-Term Evaluation MDM Mobile Device Management NIAP National Information Assurance Partnership NSA National Security Agency NVLAP National Voluntary Laboratory Assessment Program PBKDF Password Based Key Derivation Function PP Protection Profile REK Root Encryption Key RFC Request For Comments SEP Secure Enclave Processor SFR Security Functional Requirement ST Security Target TOE Target of Evaluation—A group of IT products configured as an IT system, or an IT product, and associated documentation that is the subject of a security evaluation under the CC. TLS Transport Layer Security TSF TOE Security Functionality Validation The process carried out by the CCEVS Validation Body leading to the issue of a Common Criteria certificate. Validation Body A governmental organization responsible for carrying out validation and for overseeing the day-to-day operation of the NIAP Common Criteria Evaluation and Validation Scheme. VPN Virtual Private Network VR Validation Report WLAN Wireless Local Area Network 14.Bibliography The evaluation team used the following documents to produce this Validation Report:  Common Criteria for Information Technology Security Evaluation: Part 1: Introduction and General Model, Version 3.1, Revision 5, April 2017.  Common Criteria for Information Technology Security Evaluation Part 2: Security functional components, Version 3.1, Revision 5, April 2017.  Common Criteria for Information Technology Security Evaluation Part 3: Security assurance components, Version 3.1 Revision 5, April 2017.  Protection Profile for Mobile Device Fundamentals, Version 3.1, 16 June 2017. Validation Report, Version 0.2 March 14, 2019 23  Extended Package for Mobile Device Management Agents, Version 3.0, 21 November 2016.  General Purpose Operating Systems Protection Profile / Mobile Device Fundamentals Protection Profile Extended Package (EP) Wireless Local Area Network (WLAN) Client, Version 1.0, 08 February 2016  PP-Module for VPN Client Version 2.1, 05 October 2017  Apple iPad and iPhone Mobile Devices with iOS 12 Common Criteria Configuration Guide, Version 1.7, 2019-03-12  Apple iPad and iPhone Mobile Devices with iOS 12 Security Target Version 1.6, 2019- 03-12  Assurance Activity Report, Version 1.1, 2019-03-12