National Information Assurance Partnership Common Criteria Evaluation and Validation Scheme Validation Report Huawei Device (Dongguan) Co., Ltd. 3F, Block 7, Vision Software Park, High Tech S9 ST., Nanshan, Shenzhen 518057, China Huawei Device (Dongguan) Co., Ltd. Huawei P8 Report Number: CCEVS-VR-10685-2016 Dated: May 24, 2016 Version: 1.3 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 ® TM Version 1.4 May 24, 2016 ii ACKNOWLEDGEMENTS Validation Team Jerry Myers Ken Stutterheim Aerospace Corporation Columbia, MD Sheldon Durant Stelios Melachrinoudis MITRE Corporation Bedford, MA Common Criteria Testing Laboratory Khai Van Tammy Compton Gossamer Security Solutions, Inc. Catonsville, MD Version 1.4 May 24, 2016 iii Table of Contents 1 Executive Summary.................................................................................................... 1 2 Identification............................................................................................................... 1 3 Architectural Information ........................................................................................... 3 3.1 TOE Evaluated Configuration ............................................................................ 3 3.2 TOE Architecture................................................................................................ 3 3.3 Physical Boundaries............................................................................................ 4 4 Security Policy............................................................................................................ 4 4.1 Cryptographic support ........................................................................................ 4 4.2 User data protection ............................................................................................ 4 4.3 Identification and authentication......................................................................... 4 4.4 Security management.......................................................................................... 5 4.5 Protection of the TSF.......................................................................................... 5 4.6 TOE access.......................................................................................................... 5 4.7 Trusted path/channels ......................................................................................... 5 5 Assumptions and Clarification of Scope..................................................................... 6 6 Documentation............................................................................................................ 6 7 IT Product Testing ...................................................................................................... 6 7.1 Developer Testing............................................................................................... 7 7.2 Evaluation Team Independent Testing ............................................................... 7 8 Evaluated Configuration ............................................................................................. 7 9 Results of the Evaluation ............................................................................................ 8 9.1 Evaluation of the Security Target (ASE)............................................................ 8 9.2 Evaluation of the Development (ADV).............................................................. 8 9.3 Evaluation of the Guidance Documents (AGD) ................................................. 8 9.4 Evaluation of the Life Cycle Support Activities (ALC) ..................................... 9 9.5 Evaluation of the Test Documentation and the Test Activity (ATE) ................. 9 9.6 Vulnerability Assessment Activity (VAN)......................................................... 9 9.7 Summary of Evaluation Results.......................................................................... 9 10 Validator Comments/Recommendations .................................................................... 9 11 Annexes..................................................................................................................... 10 12 Security Target.......................................................................................................... 10 13 Glossary .................................................................................................................... 10 14 Bibliography ............................................................................................................. 11 Version 1.4 May 24, 2016 1 1 Executive Summary This report documents the assessment of the National Information Assurance Partnership (NIAP) validation team of the evaluation of Huawei P8 solution provided by Huawei Device (Dongguan) Co., Ltd. It presents the evaluation results, their justifications, and the conformance results. This Validation Report is not an endorsement of the Target of Evaluation by any agency of the U.S. government, and no warranty is either expressed or implied. The evaluation was performed by the Gossamer Security Solutions (Gossamer) Common Criteria Testing Laboratory (CCTL) in Catonsville, MD, United States of America, and was completed in May 2016. The information in this report is largely derived from the Evaluation Technical Report (ETR) and associated test reports, all written by Gossamer Security Solutions. The evaluation determined that the product is both Common Criteria Part 2 Extended and Part 3 Conformant, and meets the Protection Profile For Mobile Device Fundamentals, Version 2, 17 September 2014. The Target of Evaluation (TOE) is the Huawei Device (Dongguan) Co., Ltd. Huawei P8 device. The Target of Evaluation (TOE) identified in this Validation Report has been evaluated at a NIAP approved Common Criteria Testing Laboratory using the Common Methodology for IT Security Evaluation (Version 3.1, Rev 4) for conformance to the Common Criteria for IT Security Evaluation (Version 3.1, Rev 4). 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 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, 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 of the functional requirements and assurance requirements stated in the Security Target (ST). Therefore 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 technical information included in this report was obtained from the Huawei P8 (MDFPP20) Security Target 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 Version 1.4 May 24, 2016 2 Evaluation Methodology (CEM) 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 Validated Products List. Table 1 provides information needed to completely identify the product, including:  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 result of the evaluation.  The Protection Profile to which the product is conformant.  The organizations and individuals participating in the evaluation. Table 1: Evaluation Identifiers Item Identifier Evaluation Scheme United States NIAP Common Criteria Evaluation and Validation Scheme TOE: Huawei Device (Dongguan) Co., Ltd. Huawei P8 Protection Profile Protection Profile For Mobile Device Fundamentals, Version 2, 17 September 2014 ST: Huawei P8 (MDFPP20) Security Target, Version 0.93, May 24, 2016 Evaluation Technical Report Evaluation Technical Report for Huawei P8 (MDFPP20) , Version 1.4, May 24, 2016 CC Version Common Criteria for Information Technology Security Evaluation, Version 3.1, rev 4 Conformance Result CC Part 2 extended, CC Part 3 conformant Sponsor Huawei Device (Dongguan) Co., Ltd. Developer Huawei Device (Dongguan) Co., Ltd. Common Criteria Testing Lab (CCTL) Gossamer Security Solutions, Inc. CCEVS Validators Jerry Myers, The Aerospace Corporation Kenneth Stutterheim, The Aerospace Corporation Sheldon Durant, The MITRE Corporation Stelios Melachrinoudis, The MITRE Corporation Version 1.4 May 24, 2016 3 3 Architectural Information Note: The following architectural description is based on the description presented in the Security Target. The Huawei P8 is a smartphone based upon a HiSilicon K3V3+ processor. The Huawei P8 includes a 5.2 inch, Full HD 1090p resolution LCD display; a 13MP rear facing camera and 8MP front facing camera; the Huawei HiSilicon Kirin 930 chipset - quad-core 2GHz Cortex-A53 & quad-core 1.5GHz Cortex-A53, Mali-T628 MP4 GPU; 3GB of RAM; 16GB/64GB of built-in storage; and a microSD card slot, doubling as a secondary SIM slot on the Dual SIM model. The Huawei P8 ships with the Android 5.0 (Lollipop) with EmotionUI 3.1. The Huawei P8 is a mobile device that supports individual users as well as corporate enterprises. The Huawei P8 is based upon Android 5.0 as customized by Huawei. The TOE provides wireless connectivity and creates a runtime environment for applications designed for the mobile Android environment. The TOE also provides telephony features (make and receive phone calls, send and receive SMS messages), networking features (connect to Wi-Fi networks, send and receive MMS messages, connect to mobile data networks). The Huawei P8 contains between 16 and 64 GB of built-in storage and 3BG of memory. 3.1 TOE Evaluated Configuration The evaluated device is Huawei P8 Mobile Device (Model Number: GRA_L09). The software identification for the evaluated devices is as follows:  Android Version: 5.0  Kernel Version: 3.10  Build Number: GRA-L09C900B078. 3.2 TOE Architecture The TOE provides an Application Programming Interface to mobile applications and provides users installing an application to either approve or reject an application based upon the API access that the application requires The TOE also provides users with the ability to protect Data-At-Rest with AES encryption, including all user and mobile application data stored in the user’s data partition. The TOE affords special protection to all user and application cryptographic keys stored in the TOE. Moreover, the TOE provides users the ability to AES encrypt data and files stored on an SD Card inserted into the device. Version 1.4 May 24, 2016 4 Finally, the TOE interacts with a Mobile Device Management to allow enterprise control of the configuration and operation of the device so as to ensure adherence to enterprise-wide policies. 3.3 Physical Boundaries The TOE’s physical boundary is the physical perimeter of its enclosure. 4 Security Policy This section summarizes the security functionality of the TOE: 1. Cryptographic support 2. User data protection 3. Identification and authentication 4. Security Management 5. Protection of the TSF 6. TOE access 7. Trusted path/channels 4.1 Cryptographic support The TOE includes cryptographic modules with CAVP validated algorithms that are used for cryptographic functions including: asymmetric key generation and establishment, symmetric key generation, encryption/decryption, cryptographic hashing and keyed-hash message authentication. These functions are supported with suitable random bit generation, key derivation, salt generation, initialization vector generation, secure key storage, and key and protected data destruction. These primitive cryptographic functions are used to implement security protocols such as TLS, and HTTPS and also to encrypt the media (including the generation and protection of data, right, and key encryption keys) used by the TOE. Many of these cryptographic functions must also be accessible as services to applications running on the TOE. 4.2 User data protection The TOE controls access to system services by hosted applications, including protection of the Trust Anchor Database. Additionally, the TOE protects user and other sensitive data using encryption so that even if a device is physically lost, the data remains protected. 4.3 Identification and authentication The TOE supports a number of features related to identification and authentication. From a user perspective, except for limited functions such as making phone calls to an emergency number and receiving notifications, a password (i.e., Password Authentication Factor) must be correctly entered to unlock the TOE. Also, even when the TOE is unlocked the password must be re-entered to change the password. Passwords are obscured when entered Version 1.4 May 24, 2016 5 so they cannot be read from the TOE's display and the frequency of entering passwords is limited and when a configured number of failures occurs, the TOE is wiped of user data. Passwords can be constructed using upper and lower cases characters, numbers, and special characters and password lengths of 16 characters are supported. The TOE can serve as an 802.1X supplicant. The TOE can use X509v3 certificates and can perform certificate validation EAP-TLS, TLS, and HTTPS exchanges. 4.4 Security management The TOE provides all the interfaces necessary to manage the security functions identified by this Security Target as well as other functions commonly found in mobile devices. Many of the available functions are available to the users of the TOE while many are restricted to administrators operating through a Mobile Device Management solution once the TOE has been enrolled. 4.5 Protection of the TSF The TOE implements a number of features designed to protect itself to ensure the reliability and integrity of its security features. It protects particularly sensitive data such as cryptographic keys so that they are not accessible or exportable. It also provides its own timing mechanism to ensure that reliable time information is available. It enforces read, write, and execute memory page protections, uses address space layout randomization, and uses stack-based buffer overflow protections to minimize the potential to exploit application flaws. It is designed to protect itself from modification by applications as well as to isolate the address spaces of applications from one another to protect those applications. The TOE includes functions to perform self-tests and software/firmware integrity checking so that it can detect when it is failing or may be corrupt. If any self-test fails, the TOE does not go into an operational mode. It includes mechanisms (i.e., verification of the digital signature of each new image) so that the TOE itself can be updated while ensuring that the updates will not introduce malicious or other unexpected changes in the TOE. Digital signature checking also extends to verifying applications prior to their installation. 4.6 TOE access The TOE can be locked, obscuring its display, by a user or after a configured interval of inactivity. The TOE also has the capability to display an advisory message (banner) when users unlock the TOE for use. The TOE can attempt to connect to wireless networks as configured. 4.7 Trusted path/channels The TOE supports the use of 802.11-2012, 802.1X, and EAP-TLS, to secure communications channels between itself and other trusted network devices. Version 1.4 May 24, 2016 6 5 Assumptions and Clarification of Scope The Security Problem Definition, including the assumptions, may be found in the Protection Profile For Mobile Device Fundamentals, Version 2, 17 September 2014 (MDFPP). That information has not been reproduced here and the MDFPP should be consulted if there is interest in that material. 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 that: 1. 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 Mobile Device Fundamentals Protection Profile and performed by the evaluation team). 2. This evaluation covers only the specific device models and software as identified in this document, and not any earlier or later versions released or in process. 3. This evaluation did not specifically search for, nor attempt to exploit, vulnerabilities that were not “obvious” or vulnerabilities to objectives not claimed in the ST. The CEM defines an “obvious” vulnerability as one that is easily exploited with a minimum of understanding of the TOE, technical sophistication and resources. 6 Documentation The following documentation was used as evidence for the evaluation of the Huawei P8:  Guidance Instructions, version 0.5, February 14, 2016 Any additional customer documentation delivered with the product or available through download was not included in the scope of the evaluation and hence should not be relied upon when using the products as evaluated. 7 IT Product Testing This section describes the testing efforts of the developer and the Evaluation Team. It is derived from information contained in the Detailed Test Report for Huawei P8 (MDFPP20), Version 0.3, March 3, 2016. The following diagrams depict the test environments used by the evaluators. Version 1.4 May 24, 2016 7 7.1 Developer Testing No evidence of developer testing is required in the assurance activities for this product. 7.2 Evaluation Team Independent Testing The evaluation team verified the product according the Guidance Instructions, version 0.5, February 14, 2016 document and ran the tests specified in the MDFPP. 8 Evaluated Configuration The evaluated configuration consists of the Huawei P8 device. Version 1.4 May 24, 2016 8 To use the product in the evaluated configuration, the product must be configured as specified Guidance Instructions, version 0.5, February 14, 2016. 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. A verdict for an assurance component is determined by the resulting verdicts assigned to the corresponding evaluator action elements. The evaluation was conducted based upon CC version 3.1 rev 4 and CEM version 3.1 rev 4. 9.1 Evaluation of the Security Target (ASE) The evaluation team applied each ASE CEM work unit. The ST evaluation ensured the ST contains a description of the environment in terms of policies and assumptions, a statement of security requirements claimed to be met by the Huawei P8 product that are consistent with the Common Criteria, and product security function descriptions that support the requirements. The validator 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. 9.2 Evaluation of the Development (ADV) The evaluation team assessed the design documentation and found it adequate to aid in understanding how the TSF provides the security functions. The design documentation consists of a functional specification contained in the Security target and Guidance documents. Additionally the evaluator performed the assurance activities specified in the MDFPP related to the examination of the information contained in the TSS. The validator 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. 9.3 Evaluation of the Guidance Documents (AGD) 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. All of the guides were assessed during the design and testing phases of the evaluation to ensure they were complete. The validator 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 Version 1.4 May 24, 2016 9 conducted in accordance with the requirements of the CEM, and that the conclusion reached by the evaluation team was justified. 9.4 Evaluation of the Life Cycle Support Activities (ALC) The evaluation team found that the TOE was identified. The validator 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. 9.5 Evaluation of the Test Documentation and the Test Activity (ATE) The evaluation team ran the set of tests specified by the assurance activities in the MDFPP and recorded the results in a Test Report, summarized in the Assurance Activities Report. The validator 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. 9.6 Vulnerability Assessment Activity (VAN) The evaluation team performed a public search for vulnerabilities and did not discover any public issues with the TOE. The validator 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. 9.7 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 testing also demonstrated the accuracy of the claims in the ST. The validation team’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 correctly verified that the product meets the claims in the ST. 10 Validator Comments/Recommendations The evaluated configuration requires that software updates to the TOE be restricted to FOTA. The evaluators were unable to directly exercise this mechanism since it would have involved placing invalid updates on the live public servers that are currently in use by present customers. Hence, the evaluators had to take the products out of the evaluated configuration to test the update features. Version 1.4 May 24, 2016 10 The validators suggest that the consumer pay particular attention to the evaluated configuration of the device(s). The functionality evaluated is scoped exclusively to the security functional requirements specified in the Security Target, and only the functionality implemented by the SFR’s within the Security Target was evaluated. All other functionality provided by the devices, to include software that was not part of the evaluated configuration, needs to be assessed separately and no further conclusions can be drawn about their effectiveness. 11 Annexes Not applicable 12 Security Target The Security Target is identified as Huawei P8 (MDFPP20) Security Target, Version 0.93, May 24, 2016. 13 Glossary The following definitions are used throughout this document:  Common Criteria Testing Laboratory (CCTL). 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.  Conformance. The ability to demonstrate in an unambiguous way that a given implementation is correct with respect to the formal model.  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.  Feature. Part of a product that is either included with the product or can be ordered separately.  Target of Evaluation (TOE). 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.  Validation. The process carried out by the CCEVS Validation Body leading to the issue of a Common Criteria certificate. Version 1.4 May 24, 2016 11  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. 14 Bibliography The Validation Team used the following documents to produce this Validation Report: [1] Common Criteria for Information Technology Security Evaluation: Part 1: Introduction and General Model, Version 3.1, Revision 4, September 2012. [2] Common Criteria for Information Technology Security Evaluation Part 2: Security functional components, Version 3.1, Revision 4, September 2012. [3] Common Criteria for Information Technology Security Evaluation Part 3: Security assurance components, Version 3.1 Revision 4, September 2102. [4] Protection Profile For Mobile Device Fundamentals, Version 2, 17 September 2014.