National Information Assurance Partnership
Common Criteria Evaluation and Validation Scheme
Validation Report
Cisco Systems, Inc.
Cisco AnyConnect Secure Mobility Client v4.7 for Android
Report Number: CCEVS-VR-VID10976-2019
Dated: August 27, 2019
Version: 0.3
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
Cisco AnyConnect 4.7 on Android Validation Report Version 0.3, August 23, 2019
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ACKNOWLEDGEMENTS
Validation Team
Kenneth Stutterheim
The Aerospace Corporation
John Butterworth
Jenn Dotson
Patrick Mallett PhD
Linda Morrison
Clare Olin
The MITRE Corporation
Common Criteria Testing Laboratory
Khai Van
Gossamer Security Solutions, Inc.
Catonsville, MD
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Table of Contents
1 Executive Summary............................................................................................................1
2 Identification.......................................................................................................................1
3 Architectural Information...................................................................................................2
3.1 TOE Description.........................................................................................................3
3.2 TOE Evaluated Configuration....................................................................................3
3.3 Physical Scope of the TOE.........................................................................................3
4 Security Policy....................................................................................................................3
4.1 Cryptographic support................................................................................................4
4.2 Full residual information protection...........................................................................4
4.3 Identification and authentication ................................................................................4
4.4 Security management .................................................................................................4
4.5 Protection of the TSF..................................................................................................4
4.6 Trusted channels.........................................................................................................4
5 Assumptions .......................................................................................................................4
6 Clarification of Scope.........................................................................................................5
7 Documentation ...................................................................................................................5
8 IT Product Testing..............................................................................................................6
8.1 Developer Testing ......................................................................................................6
8.2 Evaluation Team Independent Testing.......................................................................6
8.3 Test Environment .......................................................................................................6
9 Evaluated Configuration.....................................................................................................7
10 Results of the Evaluation....................................................................................................7
10.1 Evaluation of the Security Target (ASE)....................................................................7
10.2 Evaluation of the Development (ADV)......................................................................7
10.3 Evaluation of the Guidance Documents (AGD).........................................................7
10.4 Evaluation of the Life Cycle Support Activities (ALC).............................................8
10.5 Evaluation of the Test Documentation and the Test Activity (ATE).........................8
10.6 Vulnerability Assessment Activity (VAN) ................................................................8
10.7 Summary of Evaluation Results .................................................................................9
11 Validator Comments/Recommendations............................................................................9
12 Annexes ............................................................................................................................10
13 Security Target .................................................................................................................10
14 Glossary............................................................................................................................10
15 Bibliography.....................................................................................................................11
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1 Executive Summary
This report documents the assessment of the National Information Assurance Partnership
(NIAP) validation team of the evaluation of Cisco AnyConnect Secure Mobility Client v4.7 for
Android solution provided by Cisco Systems, Inc. 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 August 2019. 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 assurance requirements of the Protection Profile for Application
Software, version 1.2, April 22, 2016 and PP-Module for Virtual Private Network (VPN)
Clients, version 2.1, October 5, 2017.
The Target of Evaluation (TOE) is the Cisco AnyConnect Secure Mobility Client v4.7 for
Android product.
The 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 5) for conformance to the Common Criteria for IT Security Evaluation
(Version 3.1, Rev 5). 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 Cisco AnyConnect
Secure Mobility Client v4.7 for Android 8 Security Target, Version 1.0, August 23, 2019 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
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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 Product Compliant
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 Cisco AnyConnect Secure Mobility Client v4.7 for Android
Protection Profile Protection Profile for Application Software, version 1.2, April 22, 2016 and PP-
Module for Virtual Private Network (VPN) Clients, version 2.1, October 5, 2017
ST Cisco AnyConnect Secure Mobility Client v4.7 for Android 8 Security Target,
Version 1.0, August 23, 2019
Evaluation Technical
Report
Evaluation Technical Report for Cisco AnyConnect Secure Mobility Client v4.7
for Android, version 0.3, August 23, 2019
CC Version Common Criteria for Information Technology Security Evaluation, Version 3.1,
rev 5
Conformance Result CC Part 2 extended, CC Part 3 conformant
Sponsor Cisco Systems, Inc.
Developer Cisco Systems, Inc.
Common Criteria
Testing Lab (CCTL)
Gossamer Security Solutions, Inc.
CCEVS Validators John Butterworth, Jenn Dotson, Patrick Mallett PhD, Linda Morrison, Clare Olin,
Kenneth Stutterheim
3 Architectural Information
Note: The following architectural description is based on the description presented in the
Security Target.
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The TOE is the Cisco AnyConnect Secure Mobility Client v4.7 for Android (herein after
referred to as the VPN client, or the TOE). The TOE enables remote users within an
organization to communicate securely as if their devices were directly connected to a private
network.
The TOE is a VPN Client software application. A virtual private network (VPN) extends the
organization’s private network across a shared or public network. A VPN client establishes a
IKEv2/IPsec connection to a VPN Gateway which allowing the remote user to securely connect
to the organization’s private network.
3.1 TOE Description
The Cisco AnyConnect TOE is a client application that provides remote users a secure VPN
tunnel to protect data in transit on both IPv4 and IPv6 networks. The TOE provides IPsec to
authenticate and encrypt network traffic travelling across an unprotected public network. By
protecting the communication from unauthorized disclosure or modification, remote users can
securely connect to an organization’s network resources and applications. The TOE only
works with a Cisco Adaptive Security Appliance (ASA) 5500 series VPN gateway. The
appropriate licenses must be installed on the ASA to permit use of AnyConnect remote access
IPsec VPN. Refer to the Cisco License Management portal at
http://www.cisco.com/go/license. FIPS mode must be enabled on both the ASA 5500 VPN
gateway as well as the TOE application.
3.2 TOE Evaluated Configuration
As a software application, the evaluated configuration is Cisco AnyConnect v4.7 installed on
a Samsung Galaxy device running Android 8. Refer to the Common Criteria Administrator’s
Guide for both the Samsung platform and the Cisco VPN client for instructions on installing
and configuring the TOE.
3.3 Physical Scope of the TOE
The TOE is a software-only VPN client application. The underlying Samsung Galaxy
Android 8 platform on which the TOE resides is considered part of the IT environment
4 Security Policy
This section summaries the security functionality of the TOE:
1. Cryptographic Support
2. Full Residual Information Protection
3. Identification and Authentication
4. Security Management
5. Protection of the TSF
6. Trusted Channels
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4.1 Cryptographic support
The TOE incorporates a cryptographic module, CiscoSSL FIPS Object Module, to provide the
cryptography in support of IPsec with ESP symmetric cryptography for bulk AES
encryption/decryption and SHA-2 algorithm for hashing. In addition the TOE provides the
cryptography to support Diffie-Hellman key exchange and derivation function used in the
IKEv2 and ESP protocols. The TOE platform provides asymmetric cryptography, which is
used by the TOE for IKE peer authentication using digital signature and hashing services. In
addition the TOE platform provides a DRBG. The key generation function on the TOE can be
invoked by the TOE platform Administrator using a MDM product.
4.2 Full residual information protection
The TOE platform ensures that residual information from previously sent network packets
processed through the platform are protected from being passed into subsequent network
packets.
4.3 Identification and authentication
The TOE and TOE platform perform device-level X.509 certificate-based authentication of the
VPN Gateway during IKE v2 key exchange. Device-level authentication allows the TOE to
establish a secure channel with a trusted VPN Gateway. The secure channel is established only
after each endpoint successfully authenticates each other.
4.4 Security management
The TOE, TOE platform, and VPN Gateway provide the management functions to configure
the security functionality provided by the TOE.
4.5 Protection of the TSF
The TOE performs a suite of self-tests during initial start-up to verify correct operation of its
CAVP tested algorithms. Upon execution, the integrity of the TOEs software executables is
also verified. The TOE Platform provides for verification of TOE software updates prior to
installation.
4.6 Trusted channels
The TOE’s implementation of IPsec provides a trusted channel ensuring sensitive data is
protected from unauthorized disclosure or modification when transmitted from the host to a
VPN gateway.
5 Assumptions
The Security Problem Definition, including the assumptions, may be found in the following
documents:
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 Protection Profile for Application Software, version 1.2, April 22, 2016
 PP-Module for Virtual Private Network (VPN) Clients, version 2.1, October 5, 2017
That information has not been reproduced here and the ASPP12/VPNC21 should be consulted
if there is interest in that material.
The scope of this evaluation was limited to the functionality and assurances covered in the
ASPP12/VPNC21 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 devices needs to be assessed separately, and no further conclusions can be
drawn about their effectiveness.
6 Clarification of Scope
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:
 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 ASPP12/VPNC21 and performed by the evaluation team).
 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.
 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.
 The functionality evaluated is scoped exclusively to the security functional
requirements specified in the ASPP12/VPNC21 and applicable Technical Decisions.
Any additional security related functional capabilities of the TOE were not covered by
this evaluation.
7 Documentation
The following document was made available with the TOE for evaluation:
 Cisco AnyConnect Secure Mobility Client, v4.7 for Android 8 CC Configuration Guide,
Version 0.3, August 2019
It is also required to set the Samsung Galaxy mobile device platform into its evaluated
configuration using the following guidance: “Samsung Android 8 on Galaxy Devices
Administrator Guide”, which is available for download at: https://www.niap-
ccevs.org/MMO/Product/st_vid10898-agd1.pdf
Any additional customer documentation provided with the product, or that may be available
online was not included in the scope of the evaluation and therefore should not to be relied upon
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when configuring or operating the device as evaluated. Consumers are encouraged to download
the configuration documentation from the NIAP website to ensure that both the client software
and TOE platform are configured as evaluated.
8 IT Product Testing
This section describes the testing efforts of the developer and the Evaluation Team. It is derived
from information contained in the Assurance Activities Report (ASPP12/VPNC21) for Cisco
AnyConnect Secure Mobility Client v4.7 for Android, Version 0.3, August 23, 2019 (AAR).
8.1 Developer Testing
No evidence of developer testing is required in the assurance activities for this product.
8.2 Evaluation Team Independent Testing
The evaluation team verified the product according a Common Criteria Certification document
and ran the tests specified in the ASPP12/VPNC21 including the tests associated with optional
requirements.
8.3 Test Environment
 Android 8.0 on Samsung Galaxy S9/S9+
Supporting Products:
 Cisco ASA Firewall (VPN Gateway)
Supporting Software:
 SSH Client – Putty version 6.2
 Big Packet Putty version 6.2
 Wireshark version 1.10.0
 Jadx (Dex to Java decompiler) version 1.0.0
 Adaptive Security Device Manager (ASDM) 7.8
The following is a visual depiction of the testing environment:
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9 Evaluated Configuration
The evaluated configuration is Cisco AnyConnect v4.7 client software installed on the Android
8 operating system on a Samsung Galaxy device.
10 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. The reader of this document can assume that all
assurance activities and work units received a passing verdict.
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 5 and CEM version 3.1 rev 4. The evaluation determined the Cisco AnyConnect
Secure Mobility Client v4.7 for Android TOE to be Part 2 extended, and to meet the SARs
contained in the ASPP12/VPNC21.
10.1 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 Cisco AnyConnect Secure Mobility Client v4.7
for Android products 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 that the conclusion reached by
the evaluation team was justified.
10.2 Evaluation of the Development (ADV)
The evaluation team applied each ADV CEM work unit. 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 ASPP12/VPNC21 related to the examination of the
information contained in the TSS.
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 that the conclusion reached by
the evaluation team was justified.
10.3 Evaluation of the Guidance Documents (AGD)
The evaluation team applied each AGD CEM work unit. The evaluation team ensured the
adequacy of the user guidance in describing how to use the operational TOE. Additionally, the
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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 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 that the conclusion reached by
the evaluation team was justified.
10.4 Evaluation of the Life Cycle Support Activities (ALC)
The evaluation team applied each ALC CEM work unit. The evaluation team found that the
TOE was identified.
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 that the conclusion reached by
the evaluation team was justified.
10.5 Evaluation of the Test Documentation and the Test Activity (ATE)
The evaluation team applied each ATE CEM work unit. The evaluation team ran the set of tests
specified by the assurance activities in the ASPP12/VPNC21 and recorded the results in a Test
Report, summarized in the AAR.
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 that the conclusion reached by
the evaluation team was justified.
10.6 Vulnerability Assessment Activity (VAN)
The evaluation team applied each AVA CEM work unit. The vulnerability analysis is in the
Detailed Test Report (DTR) prepared by the evaluator. The vulnerability analysis includes a
public search for vulnerabilities.
The evaluator searched the National Vulnerability Database (NVD) from the NIST website to
ensure no publicly known security flaws are identified for the TOE. The evaluator performed
this search on August 21, 2019. The following search terms were used:
 anyconnect 4.7
 ikev2
 encapsulating security payload
 cisco anyconnect
 anyconnect
 Ciscossl 1.0.2o
 Openssl 1.0.2o.6.2
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 Anyconnect android
 Boost
 Knox
 Gson
 Libxml
 Libcurl
The public search for vulnerabilities did not uncover any residual vulnerability.
The evaluator also used the latest version of Windows Defender with the latest virus definitions
to run a virus scan on the TOE’s APK. The virus scan revealed no threats in the APK.
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 that the conclusion reached by the
evaluation team was justified.
10.7 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.
11 Validator Comments/Recommendations
The validation team notes that the evaluated configuration is dependent upon the TOE being
configured per the evaluated configuration instructions in the AnyConnect and Samsung Guides
listed above. No versions of the TOE and software, either earlier or later were evaluated.
Please note that the functionality evaluated is scoped exclusively to the security functional
requirements specified in the Security Target. Other functionality included in the product was
not assessed as part of this evaluation. Other functionality provided by devices in the
operational environment, need to be assessed separately and no further conclusions can be
drawn about their effectiveness.
The Cisco ASA 5500-X with software version 9.2.2 or later functions as the head-end VPN
Gateway. The Cisco AnyConnect TOE communicates only with the Cisco ASA 5500-X Series
Gateway. The appropriate licenses must be installed on the ASA to permit use of AnyConnect
remote access IPsec VPN.
In the evaluated configuration, FIPS mode must be enabled; once the device is in FIPS mode,
only approved cryptographic functions are used. As a software application on a platform, the
TOE platform is required to have been evaluated. The Samsung Galaxy Devices were tested as
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part of VID 10898. Note that the platform is required to be set up in CC mode according to the
guidance documentation “Samsung Android 8 on Galaxy Devices Administrator Guide”, which
is available for download at: https://www.niap-ccevs.org/MMO/Product/st_vid10898-agd1.pdf
The key generation function on the TOE can be invoked by the TOE platform Administrator
using an MDM product. Refer to the Samsung Common Criteria Guide (section 3.6.7) for
information on importing new certificates to the mobile device.
Security updates for the Cisco AnyConnect TOE are available at https://software.cisco.com.
12 Annexes
Not applicable
13 Security Target
The Security Target is identified as: Cisco AnyConnect Secure Mobility Client v4.7 for Android
8 Security Target, Version 1.0, August 23, 2019.
14 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.
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 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.
15 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 5, April 2017.
[2] Common Criteria for Information Technology Security Evaluation Part 2: Security
functional components, Version 3.1, Revision 5, April 2017.
[3] Common Criteria for Information Technology Security Evaluation Part 3: Security
assurance components, Version 3.1 Revision 5, April 2017.
[4] Protection Profile for Application Software, version 1.2, April 22, 2016 and PP-Module
for Virtual Private Network (VPN) Clients, version 2.1, October 5, 2017.
[5] Cisco AnyConnect Secure Mobility Client v4.7 for Android 8 Security Target, Version
1.0, August 23, 2019 (ST).
[6] Assurance Activity Report (ASPP12/VPNC21) for Cisco AnyConnect Secure Mobility
Client v4.7 for Android , Version 0.3, August 23, 2019 (AAR).
[7] Detailed Test Report (ASPP12/VPNC21) for Cisco AnyConnect Secure Mobility Client
v4.7 for Android, Version 0.3, August 23, 2019 (DTR).
[8] Evaluation Technical Report for Cisco AnyConnect Secure Mobility Client v4.7 for
Android , Version 0.3, August 23, 2019 (ETR)