Certification Report
EAL 2+ Evaluation of Web Gateway v7.0.1.1
Issued by:
Communications Security Establishment Canada
Certification Body
Canadian Common Criteria Evaluation and Certification Scheme
© Government of Canada, Communications Security Establishment Canada, 2010
Document number: 383-4-89-CR
Version: 1.0
Date: 17 December 2010
Pagination: i to iii, 1 to 9
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DISCLAIMER
The Information Technology (IT) product identified in this certification report, and its
associated certificate, has been evaluated at an approved evaluation facility – established
under the Canadian Common Criteria Evaluation and Certification Scheme (CCS) – using
the Common Methodology for Information Technology Security Evaluation, Version 2.3, for
conformance to the Common Criteria for Information Technology Security Evaluation,
Version 2.3. This certification report, and its associated certificate, apply only to the
identified version and release of the product in its evaluated configuration. The evaluation
has been conducted in accordance with the provisions of the CCS, and the conclusions of the
evaluation facility in the evaluation report are consistent with the evidence adduced. This
report, and its associated certificate, are not an endorsement of the IT product by the
Communications Security Establishment Canada, or any other organization that recognizes
or gives effect to this report, and its associated certificate, and no warranty for the IT product
by the Communications Security Establishment Canada, or any other organization that
recognizes or gives effect to this report, and its associated certificate, is either expressed or
implied.
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FOREWORD
The Canadian Common Criteria Evaluation and Certification Scheme (CCS) provides a
third-party evaluation service for determining the trustworthiness of Information Technology
(IT) security products. Evaluations are performed by a commercial Common Criteria
Evaluation Facility (CCEF) under the oversight of the CCS Certification Body, which is
managed by the Communications Security Establishment Canada.
A CCEF is a commercial facility that has been approved by the CCS Certification Body to
perform Common Criteria evaluations; a significant requirement for such approval is
accreditation to the requirements of ISO/IEC 17025:2005, the General Requirements for the
Competence of Testing and Calibration Laboratories. Accreditation is performed under the
Program for the Accreditation of Laboratories - Canada (PALCAN), administered by the
Standards Council of Canada.
The CCEF that carried out this evaluation is Domus ITSL located in Ottawa, Canada.
By awarding a Common Criteria certificate, the CCS Certification Body asserts that the
product complies with the security requirements specified in the associated security target. A
security target is a requirements specification document that defines the scope of the
evaluation activities. The consumer of certified IT products should review the security target,
in addition to this certification report, in order to gain an understanding of any assumptions
made during the evaluation, the IT product's intended environment, its security requirements,
and the level of confidence (i.e., the evaluation assurance level) that the product satisfies the
security requirements.
This certification report is associated with the certificate of product evaluation dated 17
December 2010, and the security target identified in Section 4 of this report.
The certification report, certificate of product evaluation and security target are posted on the
CCS Certified Products list (CPL) and the Common Criteria portal (the official website of
the Common Criteria Project).
This certification report makes reference to the following trademarks or registered
trademarks:
• McAfee
• ePolicy Orchestrator
Reproduction of this report is authorized provided the report is reproduced in its entirety.
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TABLE OF CONTENTS
Disclaimer..................................................................................................................................................... i
Foreword...................................................................................................................................................... i
Executive Summary.....................................................................................................................................1
1 Identification of Target of Evaluation ..............................................................................................2
2 TOE Description .................................................................................................................................2
3 Evaluated Security Functionality......................................................................................................2
4 Security Target....................................................................................................................................2
5 Common Criteria Conformance........................................................................................................3
6 Security Policy.....................................................................................................................................3
7 Assumptions and Clarification of Scope...........................................................................................3
7.1 SECURE USAGE ASSUMPTIONS .............................................................................................3
7.2 ENVIRONMENTAL ASSUMPTIONS..........................................................................................3
7.3 CLARIFICATION OF SCOPE.....................................................................................................4
8 Architectural Information .................................................................................................................4
9 Evaluated Configuration....................................................................................................................5
10 Documentation....................................................................................................................................5
11 Evaluation Analysis Activities ...........................................................................................................5
12 ITS Product Testing ...........................................................................................................................6
12.1 ASSESSMENT OF DEVELOPER TESTS.....................................................................................6
12.2 INDEPENDENT FUNCTIONAL TESTING...................................................................................6
12.3 INDEPENDENT PENETRATION TESTING .................................................................................7
12.4 CONDUCT OF TESTING ..........................................................................................................7
12.5 TESTING RESULTS .................................................................................................................8
13 Results of the Evaluation....................................................................................................................8
14 Evaluator Comments, Observations and Recommendations .........................................................8
15 Acronyms, Abbreviations and Initializations...................................................................................8
16 References............................................................................................................................................9
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Executive Summary
McAfee Web Gateway v7.0.1.1 (hereafter referred to as MWG), from McAfee Inc. is the
Target of Evaluation for this Evaluation Assurance Level (EAL) 2 augmented evaluation.
MWG software is typically deployed as a web gateway between the internet and the
enterprise. MWG provides filters which adapt traffic for various internet protocols including
HTTP, HTTPS, and FTP. When it is installed in an FTP system, every transaction is piped
through it for filtering and malware scanning on the content. As such, MWG functions as a
web gateway to examine and adapt network traffic through a variety of filters to meet the
needs of an enterprise. MWG protects against threats such as malware hidden in blended
content.
Domus ITSL is the CCEF that conducted the evaluation. This evaluation was completed on
29 November 2010 and was carried out in accordance with the rules of the Canadian
Common Criteria Evaluation and Certification Scheme (CCS).
The scope of the evaluation is defined by the security target, which identifies assumptions
made during the evaluation, the intended environment for MWG, the security requirements,
and the level of confidence (evaluation assurance level) at which the product is intended to
satisfy the security requirements. Consumers are advised to verify that their operating
environment is consistent with that specified in the security target, and to give due
consideration to the comments, observations and recommendations in this certification
report.
The results documented in the Evaluation Technical Report (ETR)1
for this product provide
sufficient evidence that it meets the EAL 2 augmented assurance requirements for the
evaluated security functionality. The evaluation was conducted using the Common
Methodology for Information Technology Security Evaluation, Version 2.3, for conformance
to the Common Criteria for Information Technology Security Evaluation, Version 2.3. The
following augmentation is claimed: ALC_FLR.2 – Flaw Reporting Procedures.
Communications Security Establishment Canada, as the CCS Certification Body, declares
that MWG evaluation meets all the conditions of the Arrangement on the Recognition of
Common Criteria Certificates and that the product will be listed on the CCS Certified
Products list (CPL) and the Common Criteria portal (the official website of the Common
Criteria Project).
1
The ETR is a CCS document that contains information proprietary to the developer and/or the evaluator, and
is not releasable for public review.
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1 Identification of Target of Evaluation
The Target of Evaluation (TOE) for this Evaluation Assurance Level (EAL) 2 augmented,
evaluation is McAfee Web Gateway v7.0.1.1 (hereafter referred to as MWG), from McAfee
Inc.
2 TOE Description
MWG software is typically deployed as a web gateway between the internet and the
enterprise. MWG provides filters which adapt traffic for various internet protocols including
HTTP, HTTPS, and FTP. When it is installed in an FTP system, every transaction is piped
through it for filtering and malware scanning on the content. As such, MWG functions as a
web gateway to examine and adapt network traffic through a variety of filters to meet the
needs of an enterprise. MWG protects against threats such as malware hidden in blended
content.
3 Evaluated Security Functionality
The complete list of evaluated security functionality for MWG is identified in Section 2.5 of
the Security Target (ST).
MWG uses OpenSSL FIPS Object Module Version 1.1.2 (FIPS 140-2 certificate 918) for
HTTPS encryption and decryption as detailed below:
Cryptographic Module Certificate #
OpenSSL FIPS Object Module Version 1.1.2 918
The following Government of Canada approved cryptographic algorithms were evaluated for
correct implementation in MWG:
Cryptographic Algorithm Standard Certificate #
Triple-DES (3DES) FIPS 46-3 613
Advanced Encryption Standard (AES) FIPS 197 668
Rivest Shamir Adleman (RSA) FIPS 186-2 310
Secure Hash Algorithm (SHA-1) FIPS 180-2 701
Keyed-Hash Message Authentication
Code (HMAC)
FIPS 198 352
4 Security Target
The ST associated with this Certification Report is identified by the following nomenclature:
Title: McAfee® Web Gateway Version 7.0.1.1 EAL2+ ALC_FLR.2 Security Target
Version: Draft J
Date: 10 September 2010
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5 Common Criteria Conformance
The evaluation was conducted using the Common Methodology for Information Technology
Security Evaluation, Version 2.3, for conformance to the Common Criteria for Information
Technology Security Evaluation, Version 2.3.
MWG is:
a. Common Criteria Part 2 conformant, with security functional requirements based only
upon functional components in Part 2;
b. Common Criteria Part 3 conformant, with security assurance requirements based only
upon assurance components in Part 3; and
c. Common Criteria EAL 2 augmented, containing all security assurance requirements in
the EAL 2 package, as well as the following: ALC_FLR.2 – Flaw Reporting Procedures
6 Security Policy
MWG implements an information flow control policy to control information allowed to be
forwarded by the system; details of this security policy can be found in Section 5 of the ST.
In addition, MWG implements policies pertaining to security audit, user data protection,
identification and authentication, protection of security functions and security management.
Further details on these security policies may be found in Section 5 of the ST.
7 Assumptions and Clarification of Scope
Consumers of MWG should consider assumptions about usage and environmental settings as
requirements for the product’s installation and its operating environment. This will ensure
the proper and secure operation of the TOE.
7.1 Secure Usage Assumptions
The following Secure Usage Assumptions are listed in the ST:
• The TOE and local administration platform do not host public data.
• Authorized administrators are non-hostile and follow all administrator guidance;
however, they are capable of error.
• Human users who are not authorized administrators cannot directly or remotely
access the local administration platform.
7.2 Environmental Assumptions
The following Environmental Assumptions are listed in the ST:
• The TOE and local administration platform are physically secure.
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• Information cannot flow between the internal and external networks unless it passes
through the TOE.
• The communication path between the TOE and the local administration workstation
(browser) is physically protected.
• The Windows OS running on the local administration platform will provide necessary
computing services, but will not tamper with browser communications with the TOE.
7.3 Clarification of Scope
The MWG scope of evaluation includes URL filtering, Anti-Malware, HTTPS scanning and
Certificate verification.
MWG provides the following functionality that is specifically excluded from the scope of
this evaluation:
• Instant Message Protocol;
• Remote administration from connected networks;
• Cluster Management;
• Multiple Authentication Mechanisms;
• High availability;
• ICAP;
• Transparent router and transparent bridge modes;
• Use of multiple administrator roles;
• Use of ePolicy Orchestrator; and
• Kerberos administration.
8 Architectural Information
The TOE is comprised of the following logical components:
• Proxy Subsystem;
• Filter Core Subsystem;
• GUI Manager Subsystem; and
• Services Subsystem.
Web traffic (HTTP, HTTPS, and FTP) flows through the TOE from the Proxy Subsystem to
the Filter Core Subsystem and then back to Proxy Subsystem. The GUI Manager Subsystem
is used to configure and monitor the TOE. The Services Subsystem provides the necessary
tools for the other subsystems to perform their functions.
Further details about the system architecture are proprietary to the developer, and are not
provided in this report.
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9 Evaluated Configuration
The evaluated configuration for the MWG comprises:
• McAfee Web Gateway version 7.0.1.1 software.
The TOE software version executes properly across the entire family of MWG appliance
models (not part of the TOE): WW500, WW1100, WW1900, WW2900, WG5000 and
WG5500. The software also executes properly in a virtual environment under VMware ESX,
ESXi or VMware Workstation (version 5.5 or later).
Guidance on establishing the evaluated configuration is provided in the MWG 7.0.1.1
Common Criteria Evaluated Configuration Guide published by McAfee.
10 Documentation
The McAfee documents provided to the consumer are as follows:
• MWG 7.0.1.1 Common Criteria Evaluated Configuration Guide, Ref 86-0948035-D
• MWG 7.0.1.1 Common Criteria Evaluated Configuration Guide,Ref 700-2863A00
• MWG 7.0.1 Product Guide, Ref 700-2574A00
11 Evaluation Analysis Activities
The evaluation analysis activities involved a structured evaluation of MWG, including the
following areas:
Configuration management: An analysis of the MWG development environment and
associated documentation was performed. The evaluator found that the MWG configuration
items were clearly marked, and could be modified and controlled. The developer’s
configuration management system was found to be mature and well developed.
Secure delivery and operation: The evaluators examined the delivery documentation and
determined that it described all of the procedures required to maintain the integrity of the
MWG during distribution to the consumer. The evaluators examined and tested the
installation, generation and start-up procedures, and determined that they were complete and
sufficiently detailed to result in a secure configuration.
Design documentation: The evaluators analysed the MWG functional specification and
high-level design; they determined that the documents were internally consistent, and
completely and accurately instantiated all interfaces and security functions. The evaluators
also independently verified that the correspondence mappings between the design documents
were correct.
Guidance documents: The evaluators examined the MWG user and administrator guidance
documentation and determined that it sufficiently and unambiguously described how to
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securely use and administer the product, and that it was consistent with the other documents
supplied for evaluation.
Life-cycle support: The evaluators reviewed the flaw remediation procedures used by
McAfee for the MWG. During a site visit, the evaluators also examined the evidence
generated by adherence to the procedures. The evaluators concluded that the procedures are
adequate to track and correct security flaws, and distribute the flaw information and
corrections to consumers of the product.
Vulnerability Assessment: The evaluators examined the developer’s vulnerability analysis
for the MWG and found that it sufficiently described each of the potential vulnerabilities
along with a sound rationale as to why it was not exploitable in the intended environment.
The evaluators conducted an independent review of public domain vulnerability databases,
relevant standards, and evaluation deliverables to provide assurance that all potential
vulnerabilities have been considered. Additionally, the evaluators conducted some
penetration testing to validate several of the vendor’s claims for non-exploitability.
All these evaluation activities resulted in PASS verdicts.
12 ITS Product Testing
Testing at EAL 2 consists of the following three steps: assessing developer tests, performing
independent functional tests, and performing penetration tests.
12.1 Assessment of Developer Tests
The evaluators verified that the developer has met their testing responsibilities by examining
their test evidence, and reviewing their test results, as documented in the ETR2
.
The evaluators analyzed the developer’s test coverage analysis and found it to be complete
and accurate. The correspondence between the tests identified in the developer’s test
documentation and the functional specification was complete.
12.2 Independent Functional Testing
During this evaluation, the evaluator developed independent functional tests by examining
design and guidance documentation, examining the developer's test documentation,
executing a sample of the developer's test cases, and creating test cases that augmented the
developer tests.
2
The ETR is a CCS document that contains information proprietary to the developer and/or the evaluator, and
is not releasable for public review.
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All testing was planned and documented to a sufficient level of detail to allow repeatability
of the testing procedures and results. Resulting from this test coverage approach is the
following list of Domus ITSL test goals:
a. Repeat of Developer's Tests: The objective of this test goal is to repeat a subset of the
developer's tests;
b. Authentication: To confirm correct operation of authentication policies such as inactivity
timer, password complexity and authentication failure;
c. Access Control: To confirm correct operation of the configuration and enforcement of
role based access control policies;
d. Security Audit: To confirm correct operation of the audit function; and
e. TOE Management: To confirm ability to configure security parameters via the TOE
interface.
12.3 Independent Penetration Testing
Subsequent to the independent review of public domain vulnerability databases and all
evaluation deliverables, limited independent evaluator penetration testing was conducted.
The penetration tests focused on:
a. Port Scanning: The objective of this test goal is to determine if MWG opens any ports
that could be exploited from the network;
b. DOS Attack: The objective of this test goal is to determine if MWG is vulnerable to a
DOS (Denial of Service) attack causing the network controller to reboot;
c. Multi-Scan Actions: The objective of this test goal is to determine if MWG can perform
multiple types of scanning and verify that the different scans do not interfere with each
other; and
d. Session Fixation: The objective of this test goal is to determine if MWG is vulnerable to
session fixation attacks.
The independent penetration testing did not uncover any exploitable vulnerabilities in the
intended operating environment.
12.4 Conduct of Testing
MWG was subjected to a comprehensive suite of formally documented, independent
functional and penetration tests. The testing took place at the Information Technology
Security Evaluation and Test (ITSET) Facility at Domus ITSL. The CCS Certification Body
witnessed a portion of the independent testing. The detailed testing activities, including
configurations, procedures, test cases, expected results and observed results are documented
in a separate Test Results document.
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12.5 Testing Results
The developer’s tests and the independent functional tests yielded the expected results,
giving assurance that MWG behaves as specified in its ST and functional specification.
13 Results of the Evaluation
This evaluation has provided the basis for an EAL 2+ level of assurance. The overall verdict
for the evaluation is PASS. These results are supported by evidence in the ETR.
14 Evaluator Comments, Observations and Recommendations
The evaluator recommends that customers follow the MWG 7.0.1.1 Common Criteria
Evaluated Configuration Guide to deploy MWG in its evaluated configuration.
15 Acronyms, Abbreviations and Initializations
Acronym/Abbreviation/
Initialization
Description
AES Advanced Encryption Standard
CCEF Common Criteria Evaluation Facility
CCS Canadian Common Criteria Evaluation and
Certification Scheme
CPL Certified Products list
CM Configuration Management
DES Data Encryption Standard
DOS Denial of Service
EAL Evaluation Assurance Level
ETR Evaluation Technical Report
FIPS Federal Information Processing Standard
FTP File Transfer Protocol
GUI Graphical User Interface
HMAC Hash-based Message Encryption Code
HTTP Hypertext Transfer Protocol
HTTPS HTTP Secure
ICAP Internet Content Adaptation Protocol
IT Information Technology
ITSET
MWG
Information Technology Security Evaluation
and Testing
McAfee Web Gateway
OS Operating System
PALCAN Program for the Accreditation of Laboratories
- Canada
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Acronym/Abbreviation/
Initialization
Description
RSA Rivet, Shamir, and Aldeman
SHA Secure Hash Algoritm
ST Security Target
TOE Target of Evaluation
URL Uniform Resource Locator
16 References
This section lists all documentation used as source material for this report:
a. CCS Publication #4, Technical Oversight, Version 1.1, August 2005.
b. Common Criteria for Information Technology Security Evaluation, Version 2.3.,
August 2005
c. Common Methodology for Information Technology Security Evaluation, CEM,
Version 2.3., August 2005
d. McAfee® Web Gateway Version 7.0.1.1 EAL2+ ALC_FLR.2 Security Target , Rev
J, 10 September 2010
e. McAfee Web Gateway EAL2+ ETR, v1.0, 29 November 2010