Certification Report
EAL 2+ Evaluation of McAfee Email and Web Security
Appliance Version 5.5 Patch 2
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: 383-4-143-CR
Version: 1.0
Date: 17 December 2010
Pagination: i to iii, 1 to 12
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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 3.1
Revision 3, for conformance to the Common Criteria for Information Technology Security
Evaluation, Version 3.1 Revision 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 IT Security Laboratory 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 is a trademark of McAfee, Inc. in the United States and/or other counties.
Reproduction of this report is authorized provided the report is reproduced in its entirety.
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TABLE OF CONTENTS
Disclaimer..................................................................................................................................................... i
Foreword..................................................................................................................................................... ii
Executive Summary.....................................................................................................................................1
1 Identification of Target of Evaluation ..............................................................................................3
2 TOE Description .................................................................................................................................3
3 Evaluated Security Functionality......................................................................................................3
4 Security Target....................................................................................................................................4
5 Common Criteria Conformance........................................................................................................4
6 Security Policy.....................................................................................................................................4
7 Assumptions and Clarification of Scope...........................................................................................5
7.1 SECURE USAGE ASSUMPTIONS .............................................................................................5
7.2 ENVIRONMENTAL ASSUMPTIONS..........................................................................................5
7.3 CLARIFICATION OF SCOPE.....................................................................................................5
8 Architectural Information .................................................................................................................5
9 Evaluated Configuration....................................................................................................................6
10 Documentation....................................................................................................................................7
11 Evaluation Analysis Activities ...........................................................................................................7
12 ITS Product Testing ...........................................................................................................................8
12.1 ASSESSMENT OF DEVELOPER TESTS.....................................................................................9
12.2 INDEPENDENT FUNCTIONAL TESTING...................................................................................9
12.3 INDEPENDENT PENETRATION TESTING ...............................................................................10
12.4 CONDUCT OF TESTING ........................................................................................................10
12.5 TESTING RESULTS ...............................................................................................................10
13 Results of the Evaluation..................................................................................................................10
14 Evaluator Comments, Observations and Recommendations .......................................................11
15 Acronyms, Abbreviations and Initializations.................................................................................11
16 References..........................................................................................................................................11
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Executive Summary
McAfee Email and Web Security Appliance Version 5.5 Patch 2 (hereafter referred to as
McAfee EWS Appliance), from McAfee, Inc., is the Target of Evaluation for this Evaluation
Assurance Level (EAL) 2 augmented evaluation
McAfee EWS Appliance is a scalable hardware/software appliance that provides a
comprehensive security solution for internet and email services. Through a series of security
scanning, alert and configured actions, and detailed content filtering options, the McAfee
EWS Appliance protects user and company IT resources from a variety of internet and email
threats. Threats and resource liabilities such as viruses, potentially unwanted programs
(including spyware), spam and phishing attempts are identified and systematically blocked
from protected IT resources. In addition, content filtering allows administrators to assure that
inappropriate content or bandwidth usage is actively thwarted. McAfee EWS Appliance also
supports auditing, identification and authentication of administrators, and security
management tools.
Various hardware scalability options are available to tailor the software solution to
throughput requirements based on the size of the enterprise and number of users. For small to
medium sized businesses up to 1000 users, the McAfee EWS Appliance solution is
implemented as the email and web security appliance. This consolidated solution includes
internet and email protection in a single appliance. For larger businesses, the McAfee EWS
Appliance functionality is deployed as the web security appliance offering internet security
features and the email security appliance providing email protection features. In this case the
requirements of this ST are met by the web and email appliances operating together, rather
than by a single appliance. The McAfee EWS Appliance utilizes the same software suite
regardless of hardware platform selected, although three different build images are available
for the respective appliance functions.
DOMUS IT Security Laboratory is the CCEF that conducted the evaluation. This evaluation
was completed on 13 October 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 McAfee EWS Appliance, 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.
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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 3.1 Revision 3, for
conformance to the Common Criteria for Information Technology Security Evaluation,
Version 3.1 Revision 3. The following augmentation is claimed: ALC_FLR.2 –Flaw
Reporting Procedures.
Communications Security Establishment Canada, as the CCS Certification Body, declares
that McAfee EWS Appliance 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 Email and Web Security Appliance Version 5.5 Patch 2 (hereafter
referred to as McAfee EWS Appliance), from McAfee, Inc..
2 TOE Description
McAfee EWS Appliance is a scalable hardware/software appliance that provides a
comprehensive security solution for internet and email services. Through a series of security
scanning, alert and configured actions, and detailed content filtering options, the McAfee
EWS Appliance protects user and company IT resources from a variety of internet and email
threats. Threats and resource liabilities such as viruses, potentially unwanted programs
(including spyware), spam and phishing attempts are identified and systematically blocked
from protected IT resources. In addition, content filtering allows administrators to assure that
inappropriate content or bandwidth usage is actively thwarted. McAfee EWS Appliance also
supports auditing, identification and authentication of administrators, and security
management tools.
Various hardware scalability options are available to tailor the software solution to
throughput requirements based on the size of the enterprise and number of users. For small to
medium sized businesses up to 1000 users, the McAfee EWS Appliance solution is
implemented as the email and web security appliance. This consolidated solution includes
internet and email protection in a single appliance. For larger businesses, the McAfee EWS
Appliance functionality is deployed as the web security appliance offering internet security
features and the email security appliance providing email protection features. In this case the
requirements of this ST are met by the web and email appliances operating together, rather
than by a single appliance. The McAfee EWS Appliance utilizes the same software suite
regardless of hardware platform selected, although three different build images are available
for the respective appliance functions.
3 Evaluated Security Functionality
The complete list of evaluated security functionality for McAfee EWS Appliance is
identified in Section 5 of the Security Target (ST).
The following Government of Canada approved cryptographic algorithms were evaluated for
correct implementation in McAfee EWS Appliance:
Cryptographic Algorithm Standard Certificate #
SHA1 FIPS 180-3 SHS679
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4 Security Target
The ST associated with this Certification Report is identified by the following nomenclature:
Title: McAfee Email and Web Security Appliance Version 5.5 Patch 2
Version: DRAFT 0.12
Date: 22 July 2010
5 Common Criteria Conformance
The evaluation was conducted using the Common Methodology for Information Technology
Security Evaluation, Version 3.1 Revision 3, for conformance to the Common Criteria for
Information Technology Security Evaluation, Version 3.1 Revision 3.
McAfee EWS Appliance is:
a. Common Criteria Part 2 extended; with functional requirements based upon functional
components in Part 2, except for the following explicitly stated requirements defined in
the ST:
• FDP_MAM.1, Malware Monitoring, Scan Operation;
• FDP_MAM.2, Malware Monitoring, Scan Actions; and
• FDP_MAM.3, Malware Monitoring, Potential Violation Analysis.
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 3 package, as well as the following: ALC_FLR.2 – Flaw Reporting Procedures.
6 Security Policy
McAfee EWS Appliance implements an anti-virus security policy to provide protection from
viruses and malicious programs and take a specific action upon identification of a
virus/malware/spyware, as well as a content scanning and filtering policy to identify or
restrict access to intercepted traffic.
In addition, McAfee EWS Appliance implements policies pertaining to security audit,
identification and authentication, verification of downloaded threat signature files, and
security management.
Further details on these security policies may be found in Section 6 of the ST.
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7 Assumptions and Clarification of Scope
Consumers of McAfee EWS Appliance 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 Administrators of the TOE are assumed to be non-hostile, competent, trustworthy
and to follow the guidelines supplied in guidance documentation.
• The McAfee EWS Appliance is dedicated to its primary function and does not
provide any general purpose computing or storage capabilities.
• Administrators will receive and install update signature files from the Anti-Virus
Vendor and distribute the .dat and associated scanning engine updates to the TOE.
7.2 Environmental Assumptions
The following Environmental Assumptions are listed in the ST:
• Information cannot flow between external and internal networks located in different
enclaves without passing through the TOE.
• The administrator management computer used for remote security management
purposes is to be free of malware or other malicious software.
7.3 Clarification of Scope
The following items are specifically excluded from the TOE:
• McAfee E-Policy Orchestrator (software)
• The use of LDAP or Kerberos authentication servers
• Scanning of TLS traffic
• Remote Access Card option for the 3300/3400 appliances (Enterprise)
• Administration from a remote location using the Remote Access Card
• Protection of the link to the management computer using HTTPS
• Export of log records to an external server
8 Architectural Information
The McAfee EWS Appliance architecture is divided into the following modules:
• Anti-Virus Module;
• PUP Module (including Spyware);
• Anti-Phishing Module;
• Anti-Spam Module;
• URL Filtering Module;
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• Content Scan Module;
• Quarantine Management Module;
• ICAP support Module;
• HTTP Scan Module; and
• EWS Security Management Operating System.
The software of the McAfee EWS Appliance is identical among all evaluated configurations
of the appliance. The service or functionality that is enabled is dependent upon the hardware
platform deployed. In the case of the Email and Web Security appliance all the software
modules execute on that single hardware appliance. In the case of the Email Security
Appliance and Web Security Appliance, those modules that correspond to the selected
hardware platform are enabled based on that platform (either email or web).
The McAfee EWS appliance allows creation of virtual hosts. Using virtual hosts, a single
appliance can appear to behave like several appliances. Each virtual appliance can manage
traffic within specified pools of IP addresses, enabling the appliance to provide scanning
services to traffic from many sources or customers.
The McAfee EWS appliance also allows grouping of appliances into clusters. A cluster is a
group of appliances that shares both its configuration and balances the network traffic. The
cluster can contain:
• One cluster master. The master both synchronizes the configuration and balances
the load of network traffic to the other cluster members.
and at least one of the following:
• One cluster failover. If the cluster master fails, the cluster failover will seamlessly
take over the work of the cluster master.
• One or more cluster scanners. They scan traffic according to the policies
synchronized from the master.
Note that the master and the failover can also scan traffic.
Further details about the system architecture may be found in Section 1.6 of the ST.
9 Evaluated Configuration
The evaluated configuration for McAfee EWS Appliance comprises both hardware models
and software.
The TOE is the McAfee Email and Web Security software v5.5 Patch 2 running on appliance
models 3000, 3100, 3200, 3300, 3400, the Content Security Blade Server, and VMware
Server. The software includes the EWS operating system.
The following Model identifiers are included in the evaluated configuration:
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• Email and Web Security Appliance for the 3000 platform: SKU = EWS-3000-00A;
• Email and Web Security Appliance for the 3100 platform: SKU = EWS-3100-00A;
• Email and Web Security Appliance for the 3200 platform: SKU = EWS-3200-00A;
• Email and Web Security Appliance for the 3300 platform: SKU = EWS-3300-00A;
• Email Security Appliance for the 3400 platform: SKU = EWS-3400-SMA; and
• Web Security Appliance for the 3400 platform: SKU = EWS-3400-SWA.
• Blade enclosure SKUs: MCS-CH1P-M72 (M7 single phase power);
MCS-CHDP-M7C (M7 DC power);
MCS-CH3I-M72 (M7 3 phase international);
MCS-CH3P-M72 (M7 DC international); and
MCS-CH1P-M31 (M3 single phase AC).
• Blade SKUs: Management MCS-MGMT-MXX; and
Scanning MSC-BLDE-1XX.
• SKU for VMware Not applicable – available as web download only.
For details on the evaluated configuration, refer to Section 1.8 of the ST.
10 Documentation
The McAfee, Inc. documents provided to the consumer are as follows:
• Quick Start Guide for McAfee Email and Web Security Appliance v5.5;
• McAfee Email and Web Security Appliance 5.5 Installation Guide;
• McAfee Email and Web Security Virtual Appliance 5.5 Installation Guide;
• McAfee Email and Web Security Appliance (VMtrial) 5.5 Installation Guide;
• McAfee Email and Web Security Appliance 5.5 Migration Guide;
• Quick Start Guide for McAfee Content Security Blade Server (M3 chassis);
• Quick Start Guide for McAfee Content Security Blade Server (M7 chassis);
• McAfee Content Security Blade Server 5.5 (M3 chassis) Installation Guide;
• McAfee Content Security Blade Server 5.5 (M7 chassis) Installation Guide;
• McAfee Email and Web Security Appliance 5.5 Product Guide;
• Release Notes for McAfee Email and Web Security Appliance 5.5; and
• McAfee Email and Web Gateway and McAfee ePolicy Orchestrator Integration
Guide (out of scope of the TOE).
11 Evaluation Analysis Activities
The evaluation analysis activities involved a structured evaluation of McAfee EWS
Appliance, including the following areas:
Development: The evaluators analyzed the McAfee EWS Appliance functional specification
and design documentation; they determined that the design completely and accurately
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describes the TOE security functionality (TSF) interfaces, the TSF subsystems and how the
TSF implements the security functional requirements (SFRs). The evaluators analyzed the
McAfee EWS Appliance security architectural description and determined that the
initialization process is secure, that the security functions are protected against tamper and
bypass, and that security domains are maintained. The evaluators also independently verified
that the correspondence mappings between the design documents are correct.
Guidance Documents: The evaluators examined the McAfee EWS Appliance preparative
user guidance and operational user guidance and determined that it sufficiently and
unambiguously describes how to securely transform the TOE into its evaluated configuration
and how to use and administer the product. The evaluators examined and tested the
preparative and operational guidance, and determined that they are complete and sufficiently
detailed to result in a secure configuration.
Life-cycle support: An analysis of the McAfee EWS Appliance configuration management
system and associated documentation was performed. The evaluators found that the McAfee
EWS Appliance configuration items were clearly marked. The developer’s configuration
management system was observed during a site visit, and it was found to be mature and well-
developed.
The evaluators examined the delivery documentation and determined that it described all of
the procedures required to maintain the integrity of McAfee EWS Appliance during
distribution to the consumer.
The evaluators reviewed the flaw remediation procedures used by McAfee, Inc. for McAfee
EWS Appliance. 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 conducted an independent vulnerability analysis
of McAfee EWS Appliance. Additionally, the evaluators conducted a search of public
domain vulnerability databases to identify McAfee EWS Appliance potential vulnerabilities.
The evaluators identified potential vulnerabilities for testing applicable to the McAfee EWS
Appliance in its operational environment.
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.
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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.
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 IT Security Laboratory 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. Anti-Virus: The objective of this test goal is to determine the TOE's ability to provide
protection from viruses and malicious programs via a scanning engine and to verify that
alarms are generated for selected events;
c. Audit: The objective of these tests is to ensure that the audit generation, selectable audit,
storage and protection of audit records, audit review, and audit report generation
requirements have been met;
d. Identification and Authentication: The objective of these tests is to ensure that access to
the TOE is restricted to authorized administrators only;
e. Filtering: The objective of these tests is to determine the TOE's ability to identify suspect
email messages and/or email attachments and take the specified action;
f. Action and Remediation: The objective of these tests is to verify that the TOE performs
the configured action upon intercepted traffic;
g. Cryptographic Operations: The objective of these tests is to verify the verification
process used by the TOE for downloaded threat signature files; and
h. Security Management: The objective of this test goal is to determine the correct operation
of the management functions provided by the TOE.
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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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 the McAfee EWS
Appliance opens any ports that could be exploited from the network;
b. Packet Scanning: The objective of this test goal is to determine if the network packets are
encrypted when HTTPS is enabled;
c. Session Fixation: The objective of this test goal is to determine if the McAfee EWS
Appliance is vulnerable to the session fixation attack;
d. DOS (Denial of Service) Attack: The objective of this test goal is to determine if the
McAfee EWS Appliance is vulnerable to a DOS attack causing the network controller to
reboot;
e. Multi-Scan Actions: The objective of this test goal is to determine if the McAfee EWS
Appliance can perform multiple types of scanning and verify that the different scans do
not interfere with each other; and
f. IP Use: The objective of this test goal is to determine if the McAfee EWS Appliance
allows the use of the IP of a restricted website when the site has been blocked.
The independent penetration testing did not uncover any exploitable vulnerabilities in the
intended operating environment.
12.4 Conduct of Testing
McAfee EWS Appliance 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 IT Security
Laboratory. 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.
12.5 Testing Results
The developer’s tests and the independent functional tests yielded the expected results,
giving assurance that McAfee EWS Appliance 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.
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14 Evaluator Comments, Observations and Recommendations
The evaluator found the guidance for the configuration, use, and integration of the McAfee
EWS Appliance in its evaluated configuration to be clear. The evaluator recommends that
customers follow the provided guidance documentation in order to deploy the McAfee EWS
Appliance in its evaluated configuration.
15 Acronyms, Abbreviations and Initializations
Acronym/Abbreviation/
Initialization
Description
CCEF Common Criteria Evaluation Facility
CCS Canadian Common Criteria Evaluation and Certification
Scheme
CPL Certified Products list
DOS Denial of Service
EAL Evaluation Assurance Level
ETR Evaluation Technical Report
EWS Email and Web Security
FIPS Federal Information Processing Standard
HTTP Hypertext Transfer Protocol Secure
HTTPS HTTP Secure
ICAP Internet Content Adaptation Protocol
IT Information Technology
ITSET Information Technology Security Evaluation and Testing
LDAP Lightweight Directory Access Protocol
PALCAN Program for the Accreditation of Laboratories - Canada
SFR Security Functional Requirement
SHA Secure Hash Algorithm
ST Security Target
TLS Transport Layer Security
TOE Target of Evaluation
TSF TOE Security Functions
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. CC version e.g. Common Criteria for Information Technology Security Evaluation,
Version 3.1 Revision 3, July, 2009.
c. CEM version e.g. Common Methodology for Information Technology Security
Evaluation, CEM, Version 3.1 Revision 3, July 2009.
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d. McAfee Email and Web Security Appliance Version 5.5 Patch 2, DRAFT 0.12, 22
July 2010
e. McAfee Email and Web Security Appliance Evaluation Technical Report, version
1.0, 13 October 2010