National Information Assurance Partnership
Common Criteria Evaluation and Validation Scheme
Validation Report
Cisco AnyConnect Secure Mobility Client v4.9 for iOS
13
Report Number: CCEVS-VR-11205-2021
Dated: September 16, 2021
Version: 1.0
National Institute of Standards and Technology Department of Defense
Information Technology Laboratory ATTN: NIAP, Suite 6982
100 Bureau Drive 9800 Savage Road
Gaithersburg, MD 20899 Fort Meade, MD 20755-6982
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ACKNOWLEDGEMENTS
Validation Team
Jerome Myers
Meredith Hennan
The Aerospace Corporation
Common Criteria Testing Laboratory
Khai Van
Gossamer Security Solutions, Inc.
Columbia, MD
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Table of Contents
1 Executive Summary.................................................................................................... 1
2 Identification............................................................................................................... 2
3 Architectural Information ........................................................................................... 3
3.1 TOE Description................................................................................................. 3
3.2 TOE Evaluated Configuration ............................................................................ 3
3.3 Physical Scope of the TOE ................................................................................. 3
4 Security Policy............................................................................................................ 4
4.1 Cryptographic Support........................................................................................ 4
4.2 User data protection ............................................................................................ 5
4.3 Identification and authentication......................................................................... 5
4.4 Security management.......................................................................................... 5
4.5 Privacy ................................................................................................................ 5
4.6 Protection of the TSF.......................................................................................... 5
4.7 Trusted path/channels ......................................................................................... 5
5 Assumptions & Clarification of Scope ....................................................................... 5
5.1 Assumptions........................................................................................................ 5
5.2 Clarification of Scope ......................................................................................... 6
6 Documentation............................................................................................................ 6
7 IT Product Testing ...................................................................................................... 7
7.1 Developer Testing............................................................................................... 7
7.2 Evaluation Team Independent Testing ............................................................... 7
8 Evaluated Configuration ............................................................................................. 7
9 Results of the Evaluation ............................................................................................ 7
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 .................................................................. 10
11 Annexes..................................................................................................................... 10
12 Security Target.......................................................................................................... 10
13 Glossary .................................................................................................................... 10
14 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
v4.9 for OS 13 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 Columbia, MD, United States of America, and was
completed in August 2021. 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 1.3, 1 March 2019 (ASPP13) and PP-
Module for Virtual Private Network (VPN) Clients, version 2.2, January 5, 2021
(VPNC22).
The Target of Evaluation (TOE) is the Cisco AnyConnect Secure Mobility Client v4.9 for
iOS 13.
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 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 v4.9 for iOS 13 Security Target, version 0.5, August 18, 2021 and
analysis performed by the Validation Team.
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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) 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 Cisco AnyConnect Secure Mobility Client v4.9 for iOS 13
(Specific models identified in Section 8)
Protection Profile PP-Configuration for Application Software and Virtual Private Network
(VPN) Clients, 05 January 2021 (CFG_APP-VPNC_V1.1)
• Base-PP: Protection Profile for Application Software, Version 1.3
(PP_APP_V1.3)
• PP-Module: PP-Module for Virtual Private Network (VPN) Clients,
Version 2.2 (MOD_VPNC_V2.2)
ST Cisco AnyConnect Secure Mobility Client v4.9 for iOS 13 Security
Target, version 0.5, August 18, 2021
Evaluation Technical Report Evaluation Technical Report for Cisco AnyConnect Secure Mobility
Client v4.9 for iOS 13, version 0.2, August 27, 2021
CC Version Common Criteria for Information Technology Security Evaluation,
Version 3.1, rev 5
Conformance Result CC Part 2 extended, CC Part 3 conformant
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Item Identifier
Sponsor Cisco Systems, Inc.
Developer Cisco Systems, Inc.
Common Criteria Testing
Lab (CCTL)
Gossamer Security Solutions, Inc.
Columbia, MD
CCEVS Validators Jerome Myers, Meredith Hennan – The Aerospace Corporation
3 Architectural Information
Note: The following architectural description is based on the description presented in the
Security Target.
The TOE is Cisco AnyConnect Secure Mobility Client v4.9 for iOS 13 (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.
3.2 TOE Evaluated Configuration
Detail regarding the evaluated configuration is provided in Section 8 below.
3.3 Physical Scope of the TOE
The TOE is a software-only VPN client application. The underlying mobile platform on
which the TOE resides is considered part of the IT environment. Figure 1 below depicts
the TOE, TOE boundary, and IT Environment.
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Figure 1 - TOE and Environment
4 Security Policy
This section summaries the security functionality of the TOE:
1. Cryptographic support
2. User data protection
3. Identification and authentication
4. Security management
5. Privacy
6. Protection of the TSF
7. Trusted path/channels
4.1 Cryptographic Support
The TOE incorporates a cryptographic module, CiscoSSL FIPS Object Module version
7.0a 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 the derivation
function used in the IKEv2 and ESP protocols. The cryptographic algorithm
implementation has been validated for CAVP conformance. See Table 16 in the ST for
certificate references.
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.
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4.2 User data 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. The TOE provides a Security
Administrator role and only the Security Administrator can perform the above security
management functions.
4.5 Privacy
The TOE does not store or transmit Personally Identifiable Information (PII) over a
network.
4.6 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.
4.7 Trusted path/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 & Clarification of Scope
5.1 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 1.3, 1 March 2019 and PP-
Module for Virtual Private Network (VPN) Clients, version 2.2, January 5, 2021
That information has not been reproduced here and the ASPP13/VPNC22 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
ASPP13/VPNC22 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.
5.2 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 Application Software Protection Profile with the Module
for Virtual Private Network Clients 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 ASPP13/VPNC22 and applicable Technical
Decisions. Any additional security related functional capabilities of the TOE were
not covered by this evaluation, including:
o Non-FIPS mode of operation
o SSL Tunnel with DTLS tunneling options
6 Documentation
The following documents were available with the TOE for evaluation:
• Cisco AnyConnect Secure Mobility Client v4.9 for iOS 13 CC Configuration
Guide, Version 0.3, August 18, 2021
Any additional customer documentation provided with the product, or that is available
online was not included in the scope of the evaluation and therefore should not be relied
upon when configuring or operating the device as evaluated.
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To use the product in the evaluated configuration, the product must be configured as
specified in the Guidance Documentation listed above. Consumers are encouraged to
download the configuration guides from the NIAP website to ensure the device is
configured 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 (DTR), which is not
publicly available. The Assurance Activity Report for Cisco AnyConnect Secure Mobility
Client v4.9 for iOS 13, Version 0.2, August 27, 2021 (AAR) provides an overview of
testing and prescribed assurance activities.
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 a Common Criteria Certification
document and ran the tests specified in the ASPP13/VPNC22 including the tests associated
with optional requirements. The Independent Testing activity is documented in the Test
Plan; it is summarized in the Assurance Activities Report, which is publicly available, and
is not duplicated here.
A description of the Test Tools and Test Configurations used in the evaluation may be
found in Section 3.4 of the Assurance Activity Report.
8 Evaluated Configuration
As a software app, the evaluated configuration is Cisco AnyConnect v4.9 installed on
iOS 13. The Cisco AnyConnect v4.9 TOE was tested on the following mobile platforms
in the IT Environment:
Device Name Model iOS Version Processor
iPhone 11 A2111 13 A13 Bionic
iPhone XR A1984 13 A12 Bionic
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 Detailed Test Report (DTR) and Evaluation Technical
Report (ETR). The reader of this document can assume that all assurance activities and
work units received a passing verdict.
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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 5. The evaluation determined the
AnyConnect Secure Mobility Client v4.9 for iOS 13 TOE to be Part 2 extended, and to
meet the SARs contained in the ASPP13/VPNC22. Additionally, the evaluator performed
the Assurance Activities specified in the CFG_APP-VPNC_V1.1.
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 Cisco AnyConnect Secure Mobility
Client v4.9 for iOS 13 products 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 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 ASPP13/VPNC22 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 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 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
conducted in accordance with the requirements of the CEM, and that the conclusion
reached by the evaluation team was justified.
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9.4 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 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 applied each ATE CEM work unit. The evaluation team ran the set of
tests specified by the assurance activities in the ASPP13/VPNC22 and recorded the results
in a Test Report, summarized in the AAR.
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 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 public search for vulnerabilities did not
uncover any residual vulnerability.
The evaluator searched the National Vulnerability Database
(https://web.nvd.nist.gov/view/vuln/search) and Vulnerability Notes Database
(http://www.kb.cert.org/vuls/) on 08/27/2021 with the following search terms:
"anyconnect 4.9", "cisco anyconnect ikev2", "cisco anyconnect encapsulating security
payload", "cisco anyconnect", "Anyconnect ios", "Apple A12 Bionic", "Apple A13
Bionic", "iOS 13", "boost", "libcurl", "ciscossl 1.1.1d", "libxml".
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.
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10 Validator Comments/Recommendations
All validator comments are covered in the Assumptions and Clarification of Scope section.
11 Annexes
Not applicable
12 Security Target
The Security Target is identified as: Cisco AnyConnect Secure Mobility Client v4.9 for iOS
13 Security Target, Version 0.5, August 18, 2021.
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.
• 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.
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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 5, September 2012.
[2] Common Criteria for Information Technology Security Evaluation Part 2: Security
functional components, Version 3.1, Revision 5, September 2012.
[3] Common Criteria for Information Technology Security Evaluation Part 3: Security
assurance components, Version 3.1 Revision 5, September 2102.
[4] Protection Profile for Application Software, Version 1.3, 1 March 2019 and PP-
Module for Virtual Private Network (VPN) Clients, version 2.2, January 5, 2021.
[5] Cisco AnyConnect Secure Mobility Client v4.9 for iOS 13 Security Target, Version
0.5, August 18, 2021 (ST).
[6] Assurance Activity Report for Cisco AnyConnect Secure Mobility Client v4.9 for
iOS 13, Version 0.2, August 27, 2021 (AAR).
[7] Detailed Test Report for Cisco AnyConnect Secure Mobility Client v4.9 for iOS
13, Version 0.2, August 27, 2021 (DTR).
[8] Evaluation Technical Report for Cisco AnyConnect Secure Mobility Client v4.9
for iOS 13, Version 0.2, August 27, 2021 (ETR)