Aruba 2920 Switch Series
Security Target
Version 1.7
August 25th
, 2016
Prepared For:
HPE Networking
153 Taylor Street
Littleton, MA 01460
Prepared By
1000 Innovation Drive Kanata, ON K2K 3E7703 848-0883Fax 703 848-0985
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Note: On December 1, 2015, Hewlett Packard Enterprise became two separate companies:
Hewlett Packard Enterprise and HP Inc. The network products are part of the new Hewlett
Packard Enterprise. In addition, in December 2015, the acquisition of Aruba Networks by
Hewlett Packard Enterprise became finalized.
The former HP ProCurve / ProVision network switches are undergoing product rebranding.
The rebranding is not complete in the documentation and on the websites. The TOE maybe
referred to with the suffix “HP” or “HPE” or the TOE maybe referred to as “ProCurve” or
“Aruba”. The NOS maybe referred to as “ProVision” or “ArubaOS”.
For the purpose of this evaluation, these name variations are used interchangeably and refer
to the same product.
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Table of Contents
1 SECURITY TARGET INTRODUCTION............................................................................................6
SECURITY TARGET REFERENCE ..................................................................................................6
1.1
TOE REFERENCE .......................................................................................................................6
1.2
TOE OVERVIEW .........................................................................................................................6
1.3
1.3.1 TOE Product Type ...............................................................................................................6
1.3.2 TOE Usage...........................................................................................................................7
1.3.3 TOE Security Functionality...................................................................................................7
TOE DESCRIPTION .....................................................................................................................8
1.4
1.4.1 TOE Architecture................................................................................................................10
1.4.2 TOE Components ..............................................................................................................10
1.4.2.1 Hardware ............................................................................................................................... 10
1.4.2.2 Software................................................................................................................................. 10
1.4.2.3 Management Interface(s)....................................................................................................... 10
1.4.3 Physical Boundary of the TOE...........................................................................................11
1.4.4 Operational Environment ...................................................................................................11
1.4.5 Logical Boundary of the TOE.............................................................................................11
1.4.5.1 Security Audit......................................................................................................................... 11
1.4.5.2 Cryptographic Support ........................................................................................................... 12
1.4.5.3 User Data Protection.............................................................................................................. 12
1.4.5.4 Identification and Authentication ............................................................................................ 12
1.4.5.5 Security Management ............................................................................................................ 13
1.4.5.6 Protection of the TSF ............................................................................................................. 13
1.4.5.7 TOE Access........................................................................................................................... 13
1.4.5.8 Trusted Path/Channels .......................................................................................................... 13
1.4.6 Excluded Functionality .......................................................................................................13
1.4.7 TOE Guidance and Reference Documents .......................................................................14
2 CONFORMANCE CLAIMS.............................................................................................................15
COMMON CRITERIA CONFORMANCE CLAIM ................................................................................15
2.1
PROTECTION PROFILE CLAIM ....................................................................................................15
2.2
PACKAGE CLAIM .......................................................................................................................15
2.3
CONFORMANCE RATIONALE.......................................................................................................15
2.4
RELEVANT TECHNICAL DECISIONS .............................................................................................16
2.5
3 SECURITY PROBLEM DEFINITION..............................................................................................17
THREATS..................................................................................................................................17
3.1
ORGANIZATIONAL SECURITY POLICIES (OSPS) ..........................................................................17
3.2
ASSUMPTIONS ..........................................................................................................................18
3.3
4 SECURITY OBJECTIVES ..............................................................................................................19
SECURITY OBJECTIVES FOR THE TOE .......................................................................................19
4.1
SECURITY OBJECTIVES FOR THE OPERATIONAL ENVIRONMENT ...................................................20
4.2
5 EXTENDED COMPONENTS DEFINITION ....................................................................................21
EXTENDED SECURITY FUNCTIONAL COMPONENTS......................................................................21
5.1
EXTENDED SECURITY FUNCTIONAL COMPONENTS RATIONALE ....................................................21
5.2
6 SECURITY REQUIREMENTS........................................................................................................22
SECURITY FUNCTIONAL REQUIREMENTS ....................................................................................22
6.1
6.1.1 Security Audit (FAU) ..........................................................................................................24
6.1.1.1 FAU_GEN.1 Audit Data Generation....................................................................................... 24
6.1.1.2 FAU_GEN.2 User Identity Association................................................................................... 25
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6.1.1.3 FAU_STG_EXT.1 Extended: External Audit Trail Storage..................................................... 25
6.1.2 Cryptographic Support (FCS).............................................................................................26
6.1.2.1 FCS_CKM.1 Cryptographic Key Generation (for asymmetric keys)....................................... 26
6.1.2.2 FCS_CKM_EXT.4 Extended: Cryptographic Key Zeroization................................................ 26
6.1.2.3 FCS_COP.1 (1) Cryptographic Operation (for data encryption/decryption) ........................... 26
6.1.2.4 FCS_COP.1 (2) Cryptographic Operation (for cryptographic signature) ................................ 26
6.1.2.5 FCS_COP.1 (3) Cryptographic Operation (for cryptographic hashing) .................................. 27
6.1.2.6 FCS_COP.1 (4) Cryptographic Operation (for keyed-hash message authentication) ............ 27
6.1.2.7 FCS_RBG_EXT.1 Extended: Cryptographic Operation (Random Bit Generation) ................ 27
6.1.2.8 FCS_SSH_EXT.1 Explicit: SSH............................................................................................. 27
6.1.2.9 FCS_TLS_EXT.1 Explicit: TLS...................................................................................................... 28
6.1.3 User Data Protection (FDP) ...............................................................................................28
6.1.3.1 FDP_RIP.2 Full Residual Information Protection ................................................................... 28
6.1.4 Identification and Authentication (FIA)...............................................................................28
6.1.4.1 FIA_PMG_EXT.1 Extended: Password Management............................................................ 28
6.1.4.2 FIA_UIA_EXT.1 Extended: User Identification and Authentication ........................................ 28
6.1.4.3 FIA_UAU_EXT.2 Extended: Password-based Authentication Mechanism ............................ 29
6.1.4.4 FIA_UAU.7 Protected Authentication Feedback .................................................................... 29
6.1.5 Security Management (FMT) .............................................................................................29
6.1.5.1 FMT_MTD.1 Management of TSF Data (for general TSF data)............................................. 29
6.1.5.2 FMT_SMF.1 Specification of Management Functions............................................................ 29
6.1.5.3 FMT_SMR.2 Restrictions on Security Roles .......................................................................... 29
6.1.6 Protection of the TSF (FPT)...............................................................................................30
6.1.6.1 FPT_SKP_EXT.1 Extended: Protection of TSF Data (for reading of all symmetric keys) ..... 30
6.1.6.2 FPT_APW_EXT.1 Extended: Protection of Administrator Passwords ................................... 30
6.1.6.3 FPT_STM.1 Reliable Time Stamps........................................................................................ 30
6.1.6.4 FPT_TUD_EXT.1 Extended: Trusted Update ........................................................................ 30
6.1.6.5 FPT_TST_EXT.1: Extended: TSF Testing............................................................................. 30
6.1.7 TOE Access (FTA) .............................................................................................................30
6.1.7.1 FTA_SSL.3 TSF-initiated Termination ................................................................................... 31
6.1.7.2 FTA_SSL.4 User-initiated Termination................................................................................... 31
6.1.7.3 FTA_TAB.1 Default TOE Access Banners............................................................................. 31
6.1.8 Trusted Path/Channels (FTP) ............................................................................................31
6.1.8.1 FTP_ITC.1 Inter-TSF Trusted Channel.................................................................................. 31
6.1.8.2 FTP_TRP.1 Trusted Path....................................................................................................... 31
SECURITY ASSURANCE REQUIREMENTS.....................................................................................32
6.2
6.2.1 Security Assurance Requirements for the TOE.................................................................32
6.2.2 Security Assurance Requirements Rationale ....................................................................35
6.2.3 Extended Assurance Activities...........................................................................................35
6.2.3.1 Class ADV Assurance Activities............................................................................................. 35
6.2.3.2 Class AGD Assurance Activities ............................................................................................ 35
6.2.3.3 Class ALC Assurance Activities ............................................................................................. 37
6.2.3.4 Class ATE Assurance Activities ............................................................................................. 37
6.2.3.5 Class AVA Assurance Activities............................................................................................. 38
6.2.4 Extended Assurance Activities...........................................................................................39
7 TOE SUMMARY SPECIFICATION ................................................................................................40
SECURITY AUDIT.......................................................................................................................40
7.1
CRYPTOGRAPHIC SUPPORT.......................................................................................................41
7.2
USER DATA PROTECTION ..........................................................................................................45
7.3
IDENTIFICATION AND AUTHENTICATION .......................................................................................45
7.4
SECURITY MANAGEMENT ..........................................................................................................46
7.5
PROTECTION OF THE SECURITY FUNCTIONALITY..........................................................................46
7.6
TOE ACCESS............................................................................................................................47
7.7
TRUSTED PATH/CHANNELS ........................................................................................................47
7.8
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8 ACRONYMS AND TERMINOLOGY...............................................................................................49
8.1.1 Acronyms ...........................................................................................................................49
8.1.2 Product Acronyms and Terminology..................................................................................49
Figures and Tables
TABLE 1: TOE PLATFORMS AND DEVICES......................................................................................................6
TABLE 2: NETWORKING APPLIANCES ...........................................................................................................10
TABLE 3: TOE REFERENCE DOCUMENTS ....................................................................................................14
TABLE 4: ST REFERENCE DOCUMENTS .......................................................................................................14
TABLE 5: TOE THREATS.............................................................................................................................17
TABLE 6: ORGANIZATIONAL SECURITY POLICIES ..........................................................................................17
TABLE 7: TOE ASSUMPTIONS .....................................................................................................................18
TABLE 8: TOE SECURITY OBJECTIVES ........................................................................................................19
TABLE 9: SECURITY OBJECTIVES FOR THE OPERATIONAL ENVIRONMENT ......................................................20
TABLE 10: EXTENDED COMPONENTS...........................................................................................................21
TABLE 11: TOE SECURITY FUNCTIONAL COMPONENTS................................................................................23
TABLE 12: AUDITABLE EVENTS (TABLE 1 OF THE NDPP) .............................................................................24
TABLE 13: [NDPP] ASSURANCE COMPONENTS ...........................................................................................32
TABLE 14: ADV_FSP.1 BASIC FUNCTIONAL SPECIFICATION ........................................................................32
TABLE 15: AGD_OPE.1 OPERATIONAL USER GUIDANCE ............................................................................33
TABLE 16: AGD_PRE.1 PREPARATIVE PROCEDURES .................................................................................33
TABLE 17: ALC_CMC.1 LABELING OF THE TOE..........................................................................................34
TABLE 18: ALC_CMS.1 TOE CM COVERAGE ............................................................................................34
TABLE 19: ATE_IND.1 INDEPENDENT TESTING – CONFORMANCE................................................................34
TABLE 20: AVA_VAN.1 VULNERABILITY SURVEY ........................................................................................34
TABLE 21: ARUBA 2920 SWITCH SERIES CRYPTOGRAPHY ...........................................................................41
TABLE 22: NIST SP800-56B IMPLEMENTATION...........................................................................................42
TABLE 23: ARUBA 2920 SWITCH SERIES KEYS AND CSP’S ZEROIZATION .....................................................43
TABLE 24: ACRONYMS................................................................................................................................49
TABLE 25: TERMINOLOGY ...........................................................................................................................49
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1 Security Target Introduction
Security Target Reference
1.1
ST Title: Aruba 2920 Switch Series Security Target
ST Version: v1.7
ST Author: CygnaCom Solutions Inc.
ST Date: 08/25/2016
TOE Reference
1.2
TOE Developer: HPE
Evaluation Sponsor: HPE
TOE Identification: Aruba 2920 Switch Series, Version 5.011, WB_15_18_0011I
Platforms Specific Devices
Aruba 2920 Switch Series Aruba 2920-24G (J9726A)
Aruba 2920-24G-PoE+ (J9727A)
Aruba 2920-48G (J9728A)
Aruba 2920-48G-PoE+ (J9729A)
Aruba 2920-48G-PoE+ 740W (J9836A)
Table 1: TOE Platforms and Devices
CC Identification: Common Criteria for Information Technology Security
Evaluation, Version 3.1, Revision 4, September 2012.
TOE Overview
1.3
1.3.1 TOE Product Type
The Target of Evaluation [TOE] is a Network Device as defined by the protection profile: “A
network device is a device composed of hardware and software that is connected to the
network and has an infrastructure role in the overall enterprise”.
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1.3.2 TOE Usage
The TOE is a modular Ethernet switch, based on HPE Networking ASIC, that in the evaluated
configuration consists of the Aruba 2920 Switch Series. The TOE offers comprehensive Layer
2 and Layer 3 feature set including RIP, BGP, PoE+, and IPv4 and IPv6 functionalities.
The Aruba 2920 Switch Series provides security, scalability, and ease of use for enterprise
edge deployments.
All TOE appliances are shipped ready for immediate access through a Command Line
Interface [CLI] with some basic features enabled by default. However, to ensure secure use
the product must be configured prior to being put into production environment as specified in
the user guidance.
1.3.3 TOE Security Functionality
 Security Audit
o Generate audit logs for security-relevant events
o Supports secure communications to remote syslog servers
 Cryptographic Support
o Validated cryptographic algorithms
o Data zeroization
 User Data Protection
o Residual information clearing
 Identification and Authentication
o Password and user access policies
 Security Management
o Local and remote administration
 Protection of the TOE Security Function (TSF)
o Self-test on power-up
o Trusted update
 TOE Access
o Role-based access control
o Session timeout and lockout
 Trusted Path/Channels
o Trusted path for remote administrators
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TOE Description
1.4
The TOE is the Aruba 2920 Switch Series running ArubaOS version 5.011, that includes the
following appliances:
 Aruba 2920-24G
 Aruba 2920-24G-PoE+
 Aruba 2920-48G
 Aruba 2920-48G-PoE+
 Aruba 2920-48G-PoE+ 740W
While the physical form factor of each appliance in the HPE Networking family may vary, the
underlying hardware and software share a similar architecture. The software utilizes a
common code base of a modular nature, with only the modules applicable for the specific
hardware loaded.
Aruba 2920-24G
This model contains 24 10/100/1000Mbps ports including four that are combination / dual
purpose shared with SFP ports for fiber connectivity. Each unit also has two available port
module slots, 1 slot for optional stacking module, and a modular power supply.
The following are the specifications for this switch:
 Supports throughput of up to 95.2 Mpps.
 Switching capacity of 128 Gbps.
 Stacking up to 4 switches.
 The management features: CLI, out of band management (RJ-45, RS-232 or micro USB).
Aruba 2920-24G-PoE+
This model contains 24 10/100/1000Mbps ports including four that are combination / dual
purpose shared with SFP ports for fiber connectivity. This model supports Power over
Ethernet (PoE) and PoE+ with a 370 Watt power supply. Each nit also has two available port
module slots, a stacking module slot, and an available redundant power supply slot.
The following are the specifications for this switch:
 Supports throughput up to 95.2 Mpps.
 Switching capacity is 128 Gbps.
 PoE+ capability of up to 370W PoE+.
 Stacking up to 4 switches.
 The management features: CLI, out of band management (RJ-45, RS-232 or micro USB).
Aruba 2920-48G
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This model contains 48 10/100/1000Mbps ports including four that are combination / dual
purpose shared with SFP ports for fiber connectivity. Each unit also has two available port
module slots, 1 slot for optional stacking module, and a modular power supply.
The following are the specifications for this switch:
 Support throughput up to 130.9 Mpps.
 Switching capacity is 176 Gbps.
 Stacking up to 4 switches.
 The management features: CLI, out of band management (RJ-45, RS-232 or micro USB).
Aruba 2920-48G-PoE+
This model contains 48 10/100/1000Mbps ports including four that are combination / dual
purpose shared with SFP ports for fiber connectivity. The model supports Power over
Ethernet (PoE) and PoE+ with a 370 Watt power supply. Each unit also has two available port
module slots, 1 slot for optional stacking module and a modular power supply.
The following are the specifications for this switch:
 Supports throughput up to 130.9 Mpps.
 Switching capacity is 176 Gbps.
 PoE+ capability of up to 370W PoE+.
 Stacking up to 4 switches.
 The management features: CLI, out of band management (RJ-45, RS-232 or micro USB).
Aruba 2920-48G-PoE+ 740W
This model contains 48 10/100/1000Mbps ports including four that are combination / dual
purpose shared with SFP ports for fiber connectivity. The model supports Power over
Ethernet (PoE) and PoE+ with a 740 Watt power supply. Each unit also has two available port
module slots, 1 slot for optional stacking module and a modular power supply 740W of PoE+
Power.
The following are the specifications for this switch:
 Supports throughput up to 130.9 Mpps.
 Switching capacity is 176 Gbps.
 PoE+ capability of up to 740W PoE+.
 Stacking up to 4 switches.
 The management features: CLI, out of band management (RJ-45, RS-232 or micro USB).
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1.4.1 TOE Architecture
The underlying architecture of each TOE appliance consists of hardware that supports
physical network connections, memory, and processor and software that implements routing
and switching functions, configuration information and drivers. While hardware varies between
different appliance models, ArubaOS is shared across all platforms. The TOE’s firmware
version is WB_15_18_0011l.
ArubaOS is composed of Greenhills Integrity OS with additional components / subsystems
designed to implement operational, security, management, and networking functions.
Hardware-specific device drivers that reside in the kernel provide abstraction of the hardware
components. A dedicated cryptographic library provides functionality that implements secure
channel and protects critical security parameters. The control plane subsystem includes an IP
host stack, which can be further subdivided into protocol and control layers, implements
switching and routing functions. The system management subsystem, that includes an AAA
module, implements administrative interface and maintains configuration information for the
TOE.
1.4.2 TOE Components
1.4.2.1 Hardware
The TOE consists of the following hardware:
Platforms Models Processor
Aruba 2920
Switch
Series
Aruba 2920-24G ARM1176
Aruba 2920-24G-PoE+ ARM1176
Aruba 2920-48G ARM1176
Aruba 2920-48G-PoE+ ARM1176
Aruba 2920-48G-PoE+ 740W ARM1176
Table 2: Networking appliances
1.4.2.2 Software
The TOE runs ArubaOS. This software utilizes a common code base of a modular nature, with
only the modules applicable to the specific hardware profile initialized on any given hardware
appliance.
1.4.2.3 Management Interface(s)
The TOE supports remote and local management via a Command Line Interface (CLI). The
CLI is accessible via a directly connected RJ-45 cable or a remote connection secured by
SSHv2.
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1.4.3 Physical Boundary of the TOE
The physical boundary of the TOE is the hardware appliance itself running ArubaOS version
5.011.
1.4.4 Operational Environment
The Operational Environment of the TOE includes:
 The client software that used to access management interface
 The workstation that hosts the client software
 External IT servers:
o Syslog for external storage of audit logs
o SNTP for synchronizing system time
o DNS server
 The TOE Boundary depicted in the following figure:
Figure 1: TOE Boundary
1.4.5 Logical Boundary of the TOE
The logical boundary of the TOE is defined by implemented security functions as summarized
in the Section 1.3.3 of this document. These security functions are further described in the
following subsections.
1.4.5.1 Security Audit
The TOE generates audit records for all security-relevant events. For each event, the TOE
records the date and time, the type of event, the subject identity, and the outcome of the event
logged. The resulting logs can be stored locally for viewing by Managers and Operators, and
TOE Boundary
Audit Server
Firewall/Router
Client Client Management Station
Time Server
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can be sent securely to a designated syslog server for archiving. The logs can be viewed by
Operators and Managers using the appropriate CLI commands. The TOE also implements
timestamps to ensure reliable audit information is available using the appropriate CLI
commands.
1.4.5.2 Cryptographic Support
The TOE implements the following cryptographic protocols:
 SSHv2 and TLS
The TOE implements the SSHv2 protocol and supports public key-based or password-based
authentication with following parameters:
 AES-CBC-128, AES-CBC-256, for data encryption
 SSH_RSA for public-key authentication
 hmac-sha1 for data integrity
 diffie-hellman-group14-sha1 for key exchange
The TOE implements TLS v1.0 protocols and supports the following ciphers:
 TLS_RSA_WITH_AES_128_CBC_SHA
 TLS_RSA_WITH_AES_256_CBC_SHA
The TOE implements the following cryptographic functionality:
 Random bit generation using CTR_DRBG(AES) seeded with 256 bits of entropy
 Zeroization of Critical Security Parameters
The TOE uses the cryptographic library to manage Critical Security Parameters (CSPs), by
implementing zeroization procedures to mitigate the possibility of disclosure or modification of
CSPs. Additionally, the TOE implements commands for on-demand zeroization of CSPs (e.g.
private RSA keys) that can be invoked by an authorized administrator with sufficient
permissions based on their role.
1.4.5.3 User Data Protection
The TSF ensures that network packets sent from the TOE do not include data “left over” from
processing the previous network information.
1.4.5.4 Identification and Authentication
The TOE enforces password-based authentication (RBAC) before allowing access to the
command line and menu interfaces. Before any other action, each user is identified with a
login name and authenticated with a password. Each authorized user is associated with
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assigned role and specific permissions that determine access to TOE features. The TOE
enhances user login security by masking passwords during entry on user login.
1.4.5.5 Security Management
The TOE supports role-based access to the administrative interfaces and management
functions. The TOE provides the following management interfaces: a Command Line Interface
(CLI), a Menu Interface, and a physical console available on the front panel of the switch
appliance. The TOE supports the following roles: Manager, Operator. Both remote and local
administration are accomplished over the CLI. that provides access to all management
functions used to administer the TOE only for the manager role.
1.4.5.6 Protection of the TSF
The TOE implements a number of measures to protect the integrity of its security features.
The TOE protects CSPs such as stored passwords and cryptographic keys so they are not
directly accessible in plaintext. The TOE also ensures that reliable time information is
available for both log accountability and synchronization with the operating environment. The
TOE employs both dedicated communication channels as well as cryptographic means to
protect communication between itself and other components in the operation environment.
The TOE performs self-tests to detect failure and protect itself from malicious updates.
1.4.5.7 TOE Access
The TOE displays a banner regarding unauthorized use of the TOE before establishing a user
session. Banners are customer configurable. The TOE will also terminate a user’s session
after an administrator-configured period of inactivity. Once a session (local or remote) has
been terminated, the TOE requires the user to re-authenticate.
1.4.5.8 Trusted Path/Channels
The TOE protects remote sessions by establishing a trusted path between itself and the
administrator. The TOE prevents disclosure or modification of logs by establishing a trusted
channel between itself and the Syslog using the TLS protocol. To implement a trusted
path/secure channel the TOE uses SSHv2 protocol.
1.4.6 Excluded Functionality
The TOE supports a number of features that are not part of the core functionality. Those
features are excluded from scope of the evaluation:
 Any integration and/or communication with authentication servers such as Remote
Authentication Dial-In User Service (RADIUS) and Terminal Access Controller Access-
Control Systems (TACACS) is excluded from the evaluated configuration.
 Routing protocols that integrate authentication or encryption such as Routing
Information Protocol (RIPv2), Open Shortest Path First (OSPFv2), and Border
Gateway Protocol (BGP). RFC-compliant implementations are unable to satisfy NDPP
cryptographic requirements.
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 Use of telnet is excluded and it is disabled by default.
 Use of the SFTP server is excluded.
 Use of the SNMPv1 and SNMPv2 functionality is excluded and it is disabled by
default. The use of SNMPv3 with read-only community strings is not restricted in the
evaluated configuration; however, it is not evaluated.
1.4.7 TOE Guidance and Reference Documents
The following user guidance documents are provided to customers and are considered part of
the TOE:
Table 3: TOE Reference Documents
Reference Title ID
HPE Switch Software Management and Configuration Guide [ADMIN]
Aruba 2920 Switch Series CC Configuration Guide [CC Addendum]
HPE Switch Software Basic Operation Guide [BOP]
The documents in the following table were used as reference materials to develop this ST.
Table 4: ST Reference Documents
Reference Title ID
Common Criteria for Information Technology Security Evaluation, CCMB-2012-09-
002, Version 3.1, Revision 4
[CC]
Security Requirements for Network Devices Errata #3, 3 November 2014 [ERRATA3]
U.S. Government Standard Protection Profile for Network Devices, Version 1.1, 08
June 2012
[NDPP]
HPE 2920 Switch Series Datasheet [PS]
HPE Switch Software Basic Operation Guide [BOP]
HPE Switch Software Management and Configuration Guide [ADMIN]
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2 Conformance Claims
Common Criteria Conformance Claim
2.1
This Security Target [ST] and the Target of Evaluation [TOE] are conformant to the following
Common Criteria [CC] specifications:
 Common Criteria for Information Technology Security Evaluation Part 2: Security
Functional Components, Version 3.1, Revision 4, September 2012, CCMB-2012-09-
002
o Part 2 Conformant with additional extended functional components as specified
by the protection profile.
 Common Criteria for Information Technology Security Evaluation Part 3: Security
Assurance Components, Version 3.1, Revision 4, September 2012, CCMB-2012-09-
003
o Part 3 Conformant with additional assurance activities as specified by the
protection profile.
Protection Profile Claim
2.2
The TOE claims exact Compliance to U.S. Government Standard Protection Profile for
Network Devices, 08 June 2012, Version 1.1 [NDPP] as changed/clarified by Security
Requirements for Network Devices Errata #3, 3 November 2014 [ERRATA3]
Package Claim
2.3
The TOE does not claim to be conformant with any pre-defined packages.
Conformance Rationale
2.4
This ST claims strict conformance to only one Protection Profile [PP] – the NDPP.
The security problem definition of this ST is consistent with the statement of the security
problem definition in the PP, as the ST claims exact conformance to the PP and no other
threats, organizational security policies, or assumptions are added.
The security objectives of this ST are consistent with the statement of the security objectives
in the PP as the ST claims exact conformance to the PP and no other security objectives are
added.
The security requirements of this ST are consistent with the statement of the security
requirements in the PP as the ST claims exact conformance to the PP.
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Relevant Technical Decisions
2.5
 TD0004: FCS_TLS_EXT Man-in-the-Middle Tests
 TD0011: Clarification on FCS_SSH_EXT.1.4
 TD0012: FCS_SSH_EXT.1 Conflict Resolution
 TD0017: NDPP Audit Shutdown
 TD0019: Testing Data Channel Modification for FTP_ITC.1 and FTP_TRP.1
 TD0026: Update to FPT_TUD_EXT.1
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3 Security Problem Definition
Threats
3.1
This section identifies the threats applicable to the U.S. Government Standard Protection
Profile for Network Devices, 08 June 2012, Version 1.1 [NDPP] as specified in the Protection
Profile, verbatim.
Table 5: TOE Threats
Threat Name Threat Definition
T.ADMIN_ERROR
An administrator may unintentionally install or configure the TOE
incorrectly, resulting in ineffective security mechanisms.
T.TSF_FAILURE
Security mechanisms of the TOE may fail, leading to a compromise
of the TSF.
T.UNDETECTED_ACTIONS
Malicious remote users or external IT entities may take actions that
adversely affect the security of the TOE. These actions may remain
undetected and thus their effects cannot be effectively mitigated.
T.UNAUTHORIZED_ACCESS
A user may gain unauthorized access to the TOE data and TOE
executable code. A malicious user, process, or external IT entity
may masquerade as an authorized entity in order to gain
unauthorized access to data or TOE resources. A malicious user,
process, or external IT entity may misrepresent itself as the TOE to
obtain identification and authentication data.
T.UNAUTHORIZED_UPDATE
A malicious party attempts to supply the end user with an update to
the product that may compromise the security features of the TOE.
T.USER_DATA_REUSE
User data may be inadvertently sent to a destination not intended
by the original sender.
Organizational Security Policies (OSPs)
3.2
This section identifies the organizational security policies applicable to the U.S. Government
Standard Protection Profile for Network Devices, 08 June 2012, Version 1.1 [NDPP] as
specified in the Protection Profile, verbatim.
Table 6: Organizational Security Policies
Policy Name Policy Definition
P.ACCESS_BANNER The TOE shall display an initial banner describing restrictions of use, legal
agreements, or any other appropriate information to which users consent by
accessing the TOE.
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Assumptions
3.3
This section identifies assumptions applicable to the U.S. Government Standard Protection
Profile for Network Devices, 08 June 2012, Version 1.1 [NDPP] as specified in the Protection
Profile, verbatim.
Table 7: TOE Assumptions
Assumption Name Assumption Definition
A.NO_GENERAL_PURPOSE It is assumed that there are no general-purpose computing capabilities
(e.g., compilers or user applications) available on the TOE, other than
those services necessary for the operation, administration and support
of the TOE.
A.PHYSICAL Physical security, commensurate with the value of the TOE and the
data it contains, is assumed to be provided by the environment.
A.TRUSTED_ADMIN TOE Administrators are trusted to follow and apply all administrator
guidance in a trusted manner.
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4 Security Objectives
This section defines the security objectives of the TOE and its supporting environment.
Security Objectives for the TOE
4.1
This section identifies Security Objectives for the TOE applicable to the U.S. Government
Standard Protection Profile for Network Devices, 08 June 2012, Version 1.1 [NDPP] as
specified in the Protection Profile, verbatim.
Table 8: TOE Security Objectives
Objective Name TOE Security Objective Definition
O.PROTECTED_COMMUNICATIONS The TOE will provide protected communication channels
for administrators, other parts of a distributed TOE, and
authorized IT entities.
O.VERIFIABLE_UPDATES The TOE will provide the capability to help ensure that
any updates to the TOE can be verified by the
administrator to be unaltered and (optionally) from a
trusted source.
O.SYSTEM_MONITORING The TOE will provide the capability to generate audit data
and send those data to an external IT entity.
O.DISPLAY_BANNER The TOE will display an advisory warning regarding use
of the TOE.
O.TOE_ADMINISTRATION The TOE will provide mechanisms to ensure that only
administrators are able to log in and configure the TOE,
and provide protections for logged-in administrators.
O.RESIDUAL_INFORMATION_CLEARING The TOE will ensure that any data contained in a
protected resource is not available when the resource is
reallocated.
O.SESSION_LOCK The TOE shall provide mechanisms that mitigate the risk
of unattended sessions being hijacked.
O.TSF_SELF_TEST The TOE will provide the capability to test some subset
of its security functionality to ensure it is operating
properly.
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Security Objectives for the Operational Environment
4.2
This section identifies the Security Objectives for the Operational Environment applicable to
the U.S. Government Standard Protection Profile for Network Devices, 08 June 2012, Version
1.1 [NDPP] as specified in the Protection Profile, verbatim.
Table 9: Security Objectives for the Operational Environment
Objective Name Environmental Security Objective Definition
OE.NO_GENERAL_PURPOSE There are no general-purpose computing capabilities (e.g., compilers
or user applications) available on the TOE, other than those services
necessary for the operation, administration and support of the TOE.
OE.PHYSICAL Physical security, commensurate with the value of the TOE and the
data it contains, is provided by the environment.
OE.TRUSTED_ADMIN TOE Administrators are trusted to follow and apply all administrator
guidance in a trusted manner.
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5 Extended Components Definition
The components listed in the following table have been defined in U.S. Government Standard
Protection Profile for Network Devices, 08 June 2012, Version 1.1 [NDPP] and clarified by
Security Requirements for Network Devices Errata #3, 3 November 2014 [ERRATA3].
The extended components are denoted by adding “_EXT” in the component name.
Extended Security Functional Components
5.1
Table 10: Extended Components
Item SFR ID SFR Title
1 FAU_STG_EXT.1 Extended: External Audit Trail Storage
2 FCS_CKM_EXT.4 Extended: Cryptographic Key Zeroization
3 FCS_RBG_EXT.1 Extended: Cryptographic Operation (Random Bit Generation)
5 FCS_SSH_EXT.1 Explicit: SSH
6 FCS_TLS_EXT.1 Explicit: TLS
7 FIA_PMG_EXT.1 Extended: Password Management
8 FIA_UAU_EXT.2 Extended: Password-based Authentication Mechanism
9 FIA_UIA_EXT.1 Extended: User Identification and Authentication
10 FPT_APW_EXT.1 Extended: Protection of Administrator Passwords
11 FPT_SKP_EXT.1 Extended: Protection of TSF Data (for reading of all symmetric keys)
12 FPT_TST_EXT.1 Extended: TSF Testing
13 FPT_TUD_EXT.1 Extended: Trusted Update
14 FTA_SSL_EXT.1 Extended: TSF-initiated Session Locking
Extended Security Functional Components Rationale
5.2
All extended security functional components are sourced directly from the PP and applied
verbatim.
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6 Security Requirements
Security Functional Requirements
6.1
Conventions
The following conventions have been applied in this document:
 Security Functional Requirements – Part 2 of the CC defines the approved set of
operations that may be applied to functional requirements: iteration, assignment,
selection, and refinement.
o Iteration: allows a component to be used more than once with varying
operations. In the ST, iteration is indicated by a letter in parenthesis placed at
the end of the component. For example FDP_ACC.1 (a) and FDP_ACC.1 (b)
indicate that the ST includes two iterations of the FDP_ACC.1 requirement, “a”
and “b”.
o Assignment: allows the specification of an identified parameter. Assignments
are indicated using bold italics and are surrounded by brackets (e.g.,
[assignment]).
o Selection: allows the specification of one or more elements from a list.
Selections are indicated using bold text and are surrounded by brackets (e.g.,
[selection]).
o Refinement: are identified with "Refinement:" right after the short name.
Additions to the CC text are specified in italicized bold and underlined text.
Note: Operations already performed in the [NDPP] are not identified in this Security Target
 Explicitly stated Security Functional Requirements (i.e., those not found in Part 2
of the CC) are identified “_EXT” in the component name.)
 Case - [NDPP] uses an additional convention which defines parts of an SFR that apply
only when corresponding selections are made or some other identified conditions
exist. Only the applicable cases are identified in this ST.
The TOE security functional requirements are listed in Table 11. All SFRs are based on
requirements defined in Part 2 of the Common Criteria or defined in the U.S. Government
Standard Protection Profile for Network Devices, 08 June 2012, Version 1.1 [NDPP] and
changed/clarified by Security Requirements for Network Devices Errata #3, 3 November 2014
[ERRATA3]
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Table 11: TOE Security Functional Components
Functional Component
1 FAU_GEN.1 Audit Data Generation
2 FAU_GEN.2 User Identity Association
3 FAU_STG_EXT.1 Extended: External Audit Trail Storage
4 FCS_CKM.1 Cryptographic Key Generation (for asymmetric keys)
5 FCS_CKM_EXT.4 Extended: Cryptographic Key Zeroization
6 FCS_COP.1 (1) Cryptographic Operation (for data encryption/decryption)
7 FCS_COP.1 (2) Cryptographic Operation (for cryptographic signature)
8 FCS_COP.1 (3) Cryptographic Operation (for cryptographic hashing)
9 FCS_COP.1 (4) Cryptographic Operation (for keyed-hash message authentication)
10 FCS_RBG_EXT.1 Extended: Cryptographic Operation (Random Bit Generation)
12 FCS_SSH_EXT.1 Explicit: SSH
13 FCS_TLS_EXT.1 Explicit: TLS
14 FDP_RIP.2 Full Residual Information Protection
15 FIA_PMG_EXT.1 Extended: Password Management
16 FIA_UAU.7 Protected Authentication Feedback
17 FIA_UAU_EXT.2 Extended: Password-based Authentication Mechanism
18 FIA_UIA_EXT.1 Extended: User Identification and Authentication
19 FMT_MTD.1 Management of TSF Data (for general TSF data)
20 FMT_SMF.1 Specification of Management Functions
21 FMT_SMR.2 Restrictions on Security Roles
22 FPT_APW_EXT.1 Extended: Protection of Administrator Passwords
23 FPT_SKP_EXT.1 Extended: Protection of TSF Data (for reading of all symmetric keys)
24 FPT_STM.1 Reliable Time Stamps
25 FPT_TST_EXT.1 Extended: TSF Testing
26 FPT_TUD_EXT.1 Extended: Trusted Update
27 FTA_SSL.3 TSF-initiated Termination
28 FTA_SSL.4 User-initiated Termination
29 FTA_SSL_EXT.1 Extended: TSF-initiated Session Locking
30 FTA_TAB.1 Default TOE Access Banners
31 FTP_ITC.1 Inter-TSF Trusted Channel
32 FTP_TRP.1 Trusted Path
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6.1.1 Security Audit (FAU)
6.1.1.1 FAU_GEN.1 Audit Data Generation
FAU_GEN.1.1 The TSF shall be able to generate an audit record of the following
auditable events:
a) Start-up and shut-down of the audit functions;
b) All auditable events for the not specified level of audit; and
c) All administrative actions;
d) Specifically defined auditable events listed in Table 12.
FAU_GEN.1.2 The TSF shall record within each audit record at least the following
information:
a) Date and time of the event, type of event, subject identity, and the outcome
(success or failure) of the event; and
b) For each audit event type, based on the auditable event definitions of the
functional components included in the PP/ST, information specified in column
three of Table 12.
Table 12: Auditable Events (Table 1 of the NDPP)
Requirement Auditable Events Additional Audit Record Contents
FAU_GEN.1 Start-up and shutdown of the
audit functions;
All auditable events for the not
specified level of audit; and
All administrative actions;
No additional information.
FAU_GEN.2 None. No additional information.
FAU_STG_EXT.1 None. No additional information.
FCS_CKM.1 None. No additional information.
FCS_CKM_EXT.4 None. No additional information.
FCS_COP.1 (1) None. No additional information.
FCS_COP.1 (2) None. No additional information.
FCS_COP.1 (3) None. No additional information.
FCS_COP.1 (4) None. No additional information.
FCS_RBG_EXT.1 None. No additional information.
FDP_RIP.2 None. No additional information.
FIA_PMG_EXT.1 None. No additional information.
FIA_UAU.7 None. No additional information.
FIA_UAU_EXT.2 All use of the authentication
mechanism.
Origin of the attempt (e.g., IP address).
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Requirement Auditable Events Additional Audit Record Contents
FIA_UIA_EXT.1 All use of the identification and
authentication mechanism.
Provided user identity, origin of the
attempt (e.g., IP address).
FMT_MTD.1 None. No additional information.
FMT_SMF.1 None. No additional information.
FMT_SMR.2 None. No additional information.
FPT_APW_EXT.1 None. No additional information.
FPT_SKP_EXT.1 None. No additional information.
FPT_STM.1 Changes to the time. The old and new values for the time.
Origin of the attempt (e.g., IP address).
FPT_TST_EXT.1 None. No additional information.
FPT_TUD_EXT.1 Initiation of update. No additional information.
FTA_SSL.3 The termination of a remote
session by the session locking
mechanism.
No additional information.
FTA_SSL.4 The termination of an interactive
session.
No additional information.
FTA_SSL_EXT.1 Any attempts at unlocking of an
interactive session.
No additional information.
FTA_TAB.1 None. No additional information.
FTP_ITC.1 Initiation of the trusted channel. Identification of the initiator and target of
failed trusted channels establishment
attempt.
Termination of the trusted
channel.
Failure of the trusted channel
functions.
FTP_TRP.1 Initiation of the trusted channel. Identification of the claimed user identity.
Termination of the trusted
channel.
Failures of the trusted path
functions.
6.1.1.2 FAU_GEN.2 User Identity Association
FAU_GEN.2.1 For audit events resulting from actions of identified users, the TSF shall
be able to associate each auditable event with the identity of the user
that caused the event.
6.1.1.3 FAU_STG_EXT.1 Extended: External Audit Trail Storage
FAU_STG_EXT.1.1 The TSF shall be able to [transmit the generated audit data to an
external IT entity] receive and store audit data from an external IT
entity using a trusted channel implementing the [TLS] protocol.
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6.1.2 Cryptographic Support (FCS)
6.1.2.1 FCS_CKM.1 Cryptographic Key Generation (for asymmetric keys)
FCS_CKM.1.1 Refinement: The TSF shall generate asymmetric cryptographic keys used for
key establishment in accordance with
[NIST Special Publication 800-56B, “Recommendation for Pair-Wise Key
Establishment Schemes Using Integer Factorization Cryptography” for RSA-based
key establishment schemes]
and specified cryptographic key sizes equivalent to, or greater than, a symmetric key
strength of 112 bits.
6.1.2.2 FCS_CKM_EXT.4 Extended: Cryptographic Key Zeroization
FCS_CKM_EXT.4.1 The TSF shall zeroize all plaintext secret and private cryptographic
keys and CSPs when no longer required.
6.1.2.3 FCS_COP.1 (1) Cryptographic Operation (for data
encryption/decryption)
FCS_COP.1.1 (1) Refinement: The TSF shall perform encryption and decryption in
accordance with a specified cryptographic algorithm AES operating in
[CBC] and cryptographic key sizes 128-bits and 256-bits that meets the
following:
 FIPS PUB 197, “Advanced Encryption Standard (AES)”
 [NIST SP 800-38A, NIST SP 800-38D].
6.1.2.4 FCS_COP.1 (2) Cryptographic Operation (for cryptographic signature)
FCS_COP.1.1 (2) Refinement: The TSF shall perform cryptographic signature services in
accordance with a
[
 RSA Digital Signature Algorithm (rDSA) with a key size (modulus) of 2048
bits or greater
]
that meets the following:
[
Case: RSA Digital Signature Algorithm
FIPS PUB 186-2 or FIPS PUB 186-3, “Digital Signature Standard
]
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6.1.2.5 FCS_COP.1 (3) Cryptographic Operation (for cryptographic hashing)
FCS_COP.1.1 (3) Refinement: The TSF shall perform cryptographic hashing services in
accordance with a specified cryptographic algorithm [SHA-1, SHA-256,
SHA-512] and message digest sizes [160, 256, 512] bits that meet the
following: FIPS PUB 180-3, “Secure Hash Standard”.
6.1.2.6 FCS_COP.1 (4) Cryptographic Operation (for keyed-hash message
authentication)
FCS_COP.1.1 (4) Refinement: The TSF shall perform keyed-hash message authentication
in accordance with a specified cryptographic algorithm HMAC-[SHA-1,
SHA-256, SHA-512], key size [160, 256, 512 bits], and message digest
sizes [160, 256, 512] bits that meet the following: FIPS PUB 198-1,
"The Keyed-Hash Message Authentication Code”, and FIPS PUB 180-
3, “Secure Hash Standard”.
6.1.2.7 FCS_RBG_EXT.1 Extended: Cryptographic Operation (Random Bit
Generation)
FCS_RBG_EXT.1.1 The TSF shall perform all random bit generation (RBG) services in
accordance with [NIST Special Publication 800-90 using
[CTR_DRBG(AES)]] seeded by an entropy source that accumulated
entropy from [a software-based noise source].
FCS_RBG_EXT.1.2 The deterministic RBG shall be seeded with a minimum of [256 bits] of
entropy at least equal to the greatest security strength of the keys and
hashes that it will generate.
6.1.2.8 FCS_SSH_EXT.1 Explicit: SSH
FCS_SSH_EXT.1.1 The TSF shall implement the SSH protocol that complies with RFCs
4251, 4252, 4253, 4254, and [no other RFCs].
FCS_SSH_EXT.1.2 The TSF shall ensure that the SSH protocol implementation supports
the following authentication methods as described in RFC 4252: public
key-based, password-based.
FCS_SSH_EXT.1.3 The TSF shall ensure that, as described in RFC 4253, packets greater
than [35000 bits] bytes in an SSH transport connection are dropped.
FCS_SSH_EXT.1.4 The TSF shall ensure that the SSH transport implementation uses the
following encryption algorithms: AES-CBC-128, AES-CBC-256, [no
other algorithms].
FCS_SSH_EXT.1.5 The TSF shall ensure that the SSH transport implementation uses
[SSH_RSA] and [no other public key algorithms] as its public key
algorithm(s).
FCS_SSH_EXT.1.6 The TSF shall ensure that data integrity algorithms used in SSH
transport connection is [hmac-sha1].
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FCS_SSH_EXT.1.7 The TSF shall ensure that diffie-hellman-group14-sha1 and [no other
methods] are the only allowed key exchange methods used for the
SSH protocol.
6.1.2.9 FCS_TLS_EXT.1 Explicit: TLS
FCS_TLS_EXT.1.1 The TSF shall implement one or more of the following protocols [TLS 1.0
(RFC 2246)] supporting the following ciphersuites:
Mandatory Ciphersuites:
TLS_RSA_WITH_AES_128_CBC_SHA
Optional Ciphersuites:
[
TLS_RSA_WITH_AES_256_CBC_SHA
].
6.1.3 User Data Protection (FDP)
6.1.3.1 FDP_RIP.2 Full Residual Information Protection
FDP_RIP.2.1 The TSF shall ensure that any previous information content of a
resource is made unavailable upon the [allocation of the resource to]
all objects.
6.1.4 Identification and Authentication (FIA)
6.1.4.1 FIA_PMG_EXT.1 Extended: Password Management
FIA_PMG_EXT.1.1 The TSF shall provide the following password management capabilities
for administrative passwords:
1. Passwords shall be able to be composed of any combination of upper and lower case
letters, numbers, and the following special characters: [“!”, “@”, “#”, “$”, “%”, “^”,
“&”, “*”, “(”, “)”, [“'”, “+”, “,”, “-”, “.”, “/”, “:”, “;”, “<”, “=”, “>”, “[”, “\”, “]”, “_”,
“`”, “{”, “}”, and “~”]];
2. Minimum password length shall settable by the Security Administrator, and support
passwords of 15 characters or greater;
6.1.4.2 FIA_UIA_EXT.1 Extended: User Identification and Authentication
FIA_UIA_EXT.1.1 The TSF shall allow the following actions prior to requiring the non-TOE
entity to initiate the identification and authentication process:
 Display the warning banner in accordance with FTA_TAB.1;
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 [no other actions]
FIA_UIA_EXT.1.2 The TSF shall require each administrative user to be successfully
identified and authenticated before allowing any other TSF-mediated
actions on behalf of that administrative user.
6.1.4.3 FIA_UAU_EXT.2 Extended: Password-based Authentication
Mechanism
FIA_UAU_EXT.2.1 The TSF shall provide a local password-based authentication
mechanism, [none] to perform administrative user authentication.
6.1.4.4 FIA_UAU.7 Protected Authentication Feedback
FIA_UAU.7.1 The TSF shall provide only obscured feedback to the administrative
user while the authentication is in progress at the local console.
6.1.5 Security Management (FMT)
6.1.5.1 FMT_MTD.1 Management of TSF Data (for general TSF data)
FMT_MTD.1.1 The TSF shall restrict the ability to manage the TSF data to the Security
Administrators.
6.1.5.2 FMT_SMF.1 Specification of Management Functions
FMT_SMF.1.1 The TSF shall be capable of performing the following management
functions:
[
 Ability to administer the TOE locally and remotely;
 Ability to update the TOE, and to verify the updates using [digital signature] capability
prior to installing those updates;
o Ability to configure the list of TOE-provided services available before an
entity is identified and authenticated, as specified in FIA_UIA_EXT.1;
o Ability to configure the cryptographic functionality.
]
6.1.5.3 FMT_SMR.2 Restrictions on Security Roles
FMT_SMR.2.1 The TSF shall maintain the roles: Authorized Administrator.
FMT_SMR.2.2 The TSF shall be able to associate users with roles.
FMT_SMR.2.3 The TSF shall ensure that the conditions:
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 Authorized Administrator role shall be able to administer the TOE locally;
 Authorized Administrator role shall be able to administer the TOE remotely;
are satisfied.
6.1.6 Protection of the TSF (FPT)
6.1.6.1 FPT_SKP_EXT.1 Extended: Protection of TSF Data (for reading of all
symmetric keys)
FPT_SKP_EXT.1.1 The TSF shall prevent reading of all pre-shared keys, symmetric keys,
and private keys.
6.1.6.2 FPT_APW_EXT.1 Extended: Protection of Administrator Passwords
FPT_APW_EXT.1.1 The TSF shall store passwords in non-plaintext form.
FPT_APW_EXT.1.2 The TSF shall prevent the reading of plaintext passwords.
6.1.6.3 FPT_STM.1 Reliable Time Stamps
FPT_STM.1.1 The TSF shall be able to provide reliable time stamps for its own use.
6.1.6.4 FPT_TUD_EXT.1 Extended: Trusted Update
FPT_TUD_EXT.1.1 The TSF shall provide security administrators the ability to query the
current version of the TOE firmware/software.
FPT_TUD_EXT.1.2 The TSF shall provide security administrators the ability to initiate
updates to TOE firmware/software.
FPT_TUD_EXT.1.3 The TSF shall provide a means to verify firmware/software updates to
the TOE using a [digital signature mechanism] prior to installing
those updates.
6.1.6.5 FPT_TST_EXT.1: Extended: TSF Testing
FPT_TST_EXT.1.1 The TSF shall run a suite of self tests during initial start-up (on power
on) to demonstrate the correct operation of the TSF.
6.1.7 TOE Access (FTA)
6.1.7.1 FTA_SSL_EXT: TSF-initiated Session Locking
FTA_SSL_EXT.1.1 The TSF shall, for local interactive sessions, [terminate the session]
after a Security Administrator-specified time period of inactivity.
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6.1.7.1 FTA_SSL.3 TSF-initiated Termination
FTA_SSL.3.1 The TSF shall terminate a remote interactive session after a Security
Administrator-configurable time interval of session inactivity.
6.1.7.2 FTA_SSL.4 User-initiated Termination
FTA_SSL.4.1 The TSF shall allow Administrator-initiated termination of the
Administrator’s own interactive session.
6.1.7.3 FTA_TAB.1 Default TOE Access Banners
FTA_TAB.1.1 Refinement: Before establishing an administrative user session the TSF shall
display a Security Administrator-specified advisory notice and consent
warning message regarding use of the TOE.
6.1.8 Trusted Path/Channels (FTP)
6.1.8.1 FTP_ITC.1 Inter-TSF Trusted Channel
FTP_ITC.1.1 Refinement: The TSF shall use [TLS] to provide a trusted communication
channel between itself and authorized IT entities supporting the
following capabilities: audit server, [no other capabilities] that is
logically distinct from other communication channels and provides
assured identification of its end points and protection of the channel
data from disclosure and detection of modification of the channel data.
FTP_ITC.1.2 The TSF shall permit the TSF, or the authorized IT entities to initiate
communication via the trusted channel.
FTP_ITC.1.3 The TSF shall initiate communication via the trusted channel for
[transmitting audit records to an audit server].
6.1.8.2 FTP_TRP.1 Trusted Path
FTP_TRP.1.1 The TSF shall use [SSH] provide a trusted communication path
between itself and remote administrators that is logically distinct from
other communication paths and provides assured identification of its
end points and protection of the communicated data from disclosure
and detection of modification of the communicated data.
FTP_TRP.1.2 Refinement: The TSF shall permit remote administrators to initiate
communication via the trusted path.
FTP_TRP.1.3 The TSF shall require the use of the trusted path for initial administrator
authentication and all remote administration actions.
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Security Assurance Requirements
6.2
6.2.1 Security Assurance Requirements for the TOE
This section defines the assurance requirements for the TOE. The assurance activities to be
performed by the evaluator are defined in Sections 4 and Appendix C of the U.S. Government
Standard Protection Profile for Network Devices, [NDPP] and as modified by [ERRATA3]. The
TOE security assurance requirements, summarized in the table below, identify the
management and evaluative activities required to address the threats identified in [NDPP].
Table 13: [NDPP] Assurance Components
Assurance Class Assurance Components
Development ADV_FSP.1 Basic Functional Specification
Guidance documents
AGD_OPE.1 Operational User guidance
AGD_PRE.1 Preparative User guidance
Life cycle support
ALC_CMC.1 Labeling of the TOE
ALC_CMS.1 TOE CM coverage
Tests ATE_IND.1 Independent testing - conformance
Vulnerability assessment AVA_VAN.1 Vulnerability analysis
The following tables state the developer action elements, content and presentation elements
and evaluator action elements for each of the assurance components.
Table 14: ADV_FSP.1 Basic Functional Specification
Developer action elements
ADV_FSP.1.1D The developer shall provide a functional specification.
ADV_FSP.1.2D The developer shall provide a tracing from the functional specification to the SFRs.
Content and presentation elements
ADV_FSP.1.1C The functional specification shall describe the purpose and method of use for each
SFR-enforcing and SFR-supporting TSFI.
ADV_FSP.1.2C The functional specification shall identify all parameters associated with each SFR-
enforcing and SFR-supporting TSFI.
ADV_FSP.1.3C The functional specification shall provide rationale for the implicit categorization of
interfaces as SFR-non-interfering.
ADV_FSP.1.4C The tracing shall demonstrate that the SFRs trace to TSFIs in the functional
specification.
Evaluator action elements
ADV_ FSP.1.1E The evaluator shall confirm that the information provided meets all requirements for
content and presentation of evidence.
ADV_ FSP.1.2E The evaluator shall determine that the functional specification is an accurate and
complete instantiation of the SFRs.
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Table 15: AGD_OPE.1 Operational User Guidance
Developer action elements
AGD_OPE.1.1D The developer shall provide operational user guidance.
Content and presentation elements
AGD_OPE.1.1C The operational user guidance shall describe, for each user role, the user-
accessible functions and privileges that should be controlled in a secure processing
environment, including appropriate warnings.
AGD_OPE.1.2C The operational user guidance shall describe, for each user role, how to use the
available interfaces provided by the TOE in a secure manner.
AGD_OPE.1.3C The operational user guidance shall describe, for each user role, the available
functions and interfaces, in particular all security parameters under the control of
the user, indicating secure values as appropriate.
AGD_OPE.1.4C The operational user guidance shall, for each user role, clearly present each type of
security-relevant event relative to the user-accessible functions that need to be
performed, including changing the security characteristics of entities under the
control of the TSF.
AGD_OPE.1.5C The operational user guidance shall identify all possible modes of operation of the
TOE (including operation following failure or operational error), their consequences,
and implications for maintaining secure operation.
AGD_OPE.1.6C The operational user guidance shall, for each user role, describe the security
measures to be followed in order to fulfill the security objectives for the operational
environment as described in the ST.
AGD_OPE.1.7C The operational user guidance shall be clear and reasonable.
Evaluator action elements
AGD_OPE.1.1E The evaluator shall confirm that the information provided meets all requirements for
content and presentation of evidence.
Table 16: AGD_PRE.1 Preparative Procedures
Developer action elements
AGD_PRE.1.1D The developer shall provide the TOE, including its preparative procedures.
Content and presentation elements
AGD_ PRE.1.1C The preparative procedures shall describe all the steps necessary for secure
acceptance of the delivered TOE in accordance with the developer's delivery
procedures.
AGD_ PRE.1.2C The preparative procedures shall describe all the steps necessary for secure
installation of the TOE and for the secure preparation of the operational
environment in accordance with the security objectives for the operational
environment as described in the ST.
Evaluator action elements
AGD_ PRE.1.1E The evaluator shall confirm that the information provided meets all requirements for
content and presentation of evidence.
AGD_ PRE.1.2E The evaluator shall apply the preparative procedures to confirm that the TOE can
be prepared securely for operation.
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Table 17: ALC_CMC.1 Labeling of the TOE
Developer action elements
ALC_CMC.1.1D The developer shall provide the TOE and a reference for the TOE.
Content and presentation elements
ALC_CMC.1.1C The TOE shall be labeled with its unique reference.
Evaluator action elements
ALC_CMC.2.1E The evaluator shall confirm that the information provided meets all requirements for
content and presentation of evidence.
Table 18: ALC_CMS.1 TOE CM Coverage
Developer action elements
ALC_CMS.1.1D The developer shall provide a configuration list for the TOE.
Content and presentation elements
ALC_CMS.1.1C The configuration list shall include the following: the TOE itself; and the evaluation
evidence required by the SARs.
ALC_CMS.1.2C The configuration list shall uniquely identify the configuration items.
Evaluator action elements
ALC_CMS.1.1E The evaluator shall confirm that the information provided meets all requirements for
content and presentation of evidence.
Table 19: ATE_IND.1 Independent Testing – Conformance
Developer action elements
ATE_IND.1.1D The developer shall provide the TOE for testing.
Content and presentation elements
ATE_IND.1.1C The TOE shall be suitable for testing.
Evaluator action elements
ATE_IND.1.1E The evaluator shall confirm that the information provided meets all requirements for
content and presentation of evidence.
ATE_IND.1.2E The evaluator shall test a subset of the TSF to confirm that the TSF operates as
specified.
Table 20: AVA_VAN.1 Vulnerability Survey
Developer action elements
AVA_VAN.1.1D The developer shall provide the TOE for testing.
Content and presentation elements
AVA_VAN.1.1C The TOE shall be suitable for testing.
Evaluator action elements
AVA_VAN.1.1E The evaluator shall confirm that the information provided meets all requirements for
content and presentation of evidence.
AVA_VAN.1.2E The evaluator shall perform a search of public domain sources to identify potential
vulnerabilities in the TOE.
AVA_VAN.1.3E The evaluator shall conduct penetration testing, based on the identified potential
vulnerabilities, to determine that the TOE is resistant to attacks performed by an
attacker possessing Basic attack potential.
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6.2.2 Security Assurance Requirements Rationale
This ST conforms to the [NDPP], which draws from the CC Security Assurance Requirements
(SARs) to frame the extent to which the evaluator assesses the documentation applicable for
the evaluation and performs independent testing.
6.2.3 Extended Assurance Activities
The following subsections define the explicit assurance activities presented in the [NDPP] and
[ERRATA3] for applicable SAR families. These assurance activities serve to refine the
standard SARs previously stated with specific activities to be performed by the evaluators
during the course of their evaluation.
6.2.3.1 Class ADV Assurance Activities
Introduction
The functional specification describes the Target Security Functions Interfaces (TSFIs). It is
not necessary to have a formal or complete specification of these interfaces. Additionally,
because TOEs conforming to this PP will necessarily have interfaces to the Operational
Environment that are not directly invocable by TOE users, there is little point specifying that
such interfaces be described in and of themselves since only indirect testing of such
interfaces may be possible. For this PP, the activities for this family should focus on
understanding the interfaces presented in the TSS in response to the functional requirements
and the interfaces presented in the AGD documentation. No additional “functional
specification” documentation is necessary to satisfy the assurance activities specified.
The interfaces that need to be evaluated are characterized through the information needed to
perform the assurance activities listed, rather than as an independent, abstract list.
ADV_FSP.1 Activities
There are no specific assurance activities associated with these SARs. The functional
specification documentation is provided to support the evaluation activities described in
[NDPP] Section 4.2, and other activities described for AGD, ATE, and AVA SARs. The
requirements on the content of the functional specification information is implicitly assessed
by virtue of the other assurance activities being performed; if the evaluator is unable to
perform an activity because the there is insufficient interface information, then an adequate
functional specification has not been provided.
6.2.3.2 Class AGD Assurance Activities
Introduction
The guidance documents will be provided with the developer’s ST. Guidance must include a
description of how the authorized user verifies that the Operational Environment can fulfill its
role for the security functionality. The documentation should be in an informal style and
readable by an authorized user.
Guidance must be provided for every operational environment that the product supports as
claimed in the ST. This guidance includes
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 instructions to successfully install the TOE in that environment; and
 instructions to manage the security of the TOE as a product and as a component of
the larger operational environment.
Guidance pertaining to particular security functionality is also provided; specific requirements
on such guidance are contained in the assurance activities specified in [NDPP] Section 4.2.
AGD_OPE.1 Activities
Some of the contents of the operational guidance will be verified by the assurance activities in
[NDPP] Section 4.2 and evaluation of the TOE according to the CEM. The following additional
information is also required.
The operational guidance shall at a minimum list the processes running (or that could run) on
the TOE in its evaluated configuration during its operation that are capable of processing data
received on the network interfaces (there are likely more than one of these, and this is not
limited to the process that "listens" on the network interface). It is acceptable to list all
processes running (or that could run) on the TOE in its evaluated configuration instead of
attempting to determine just those that process the network data. For each process listed, the
administrative guidance will contain a short (e.g., one- or two-line) description of the process'
function, and the privilege with which the service runs. "Privilege" includes the hardware
privilege level (e.g., ring 0, ring 1), any software privileges specifically associated with the
process, and the privileges associated with the user role the process runs as or under.
The operational guidance shall contain instructions for configuring the cryptographic engine
associated with the evaluated configuration of the TOE. It shall provide a warning to the
administrator that use of other cryptographic engines was not evaluated nor tested during the
CC evaluation of the TOE.
The documentation must describe the process for verifying updates to the TOE, either by
checking the hash or by verifying a digital signature. The evaluator shall verify that this
process includes the following steps:
1. For hashes, a description of where the hash for a given update can be obtained. For
digital signatures, instructions for obtaining the certificate that will be used by the
FCS_COP.1 (2) mechanism to ensure that a signed update has been received from
the certificate owner. This may be supplied with the product initially, or may be
obtained by some other means.
2. Instructions for obtaining the update itself. This should include instructions for making
the update accessible to the TOE (e.g., placement in a specific directory).
3. Instructions for initiating the update process, as well as discerning whether the process
was successful or unsuccessful. This includes generation of the hash/digital signature.
The TOE will likely contain security functionality that does not fall in the scope of evaluation
under this PP. The operational guidance shall make it clear to an administrator which security
functionality is covered by the evaluation activities.
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AGD_PRE.1 Activities
As indicated in the introduction above, there are significant expectations with respect to the
documentation—especially when configuring the operational environment to support TOE
functional requirements. The evaluator shall check to ensure that the guidance provided for
the TOE adequately addresses all platforms claimed for the TOE in the ST.
6.2.3.3 Class ALC Assurance Activities
Introduction
At the assurance level provided for TOEs conformant to this PP, life-cycle support is limited to
end-user-visible aspects of the life-cycle, rather than an examination of the TOE vendor’s
development and configuration management process. This is not meant to diminish the critical
role that a developer’s practices play in contributing to the overall trustworthiness of a product;
rather, it is a reflection on the information to be made available for evaluation at this
assurance level.
ALC_CMC.1 Activities
The evaluator shall check the ST to ensure that it contains an identifier (such as a product
name/version number) that specifically identifies the version that meets the requirements of
the ST. The evaluator shall ensure that this identifier is sufficient for an acquisition entity to
use in procuring the TOE (including the appropriate administrative guidance) as specified in
the ST. Further, the evaluator shall check the AGD guidance and TOE samples received for
testing to ensure that the version number is consistent with that in the ST. If the vendor
maintains a web site advertising the TOE, the evaluator shall examine the information on the
web site to ensure that the information in the ST is sufficient to distinguish the product.
ALC_CMS.1 Activities
The “evaluation evidence required by the SARs” in this PP is limited to the information in the
ST coupled with the guidance provided to administrators and users under the AGD
requirements. By ensuring that the TOE is specifically identified and that this identification is
consistent in the ST and in the AGD guidance (as done in the assurance activity for
ALC_CMC.1), the evaluator implicitly confirms the information required by this component.
6.2.3.4 Class ATE Assurance Activities
Introduction
Testing is specified for functional aspects of the system as well as aspects that take
advantage of design or implementation weaknesses. The former is done through the
ATE_IND family, while the latter is through the AVA_VAN family. At the assurance level
specified in this PP, testing is based on advertised functionality and interfaces with
dependency on the availability of design information. One of the primary outputs of the
evaluation process is the test report as specified in the following requirements.
ATE_IND.1 Activities
The evaluator shall prepare a test plan and report documenting the testing aspects of the
system. The test plan covers all of the testing actions contained in the CEM and the body of
this PP’s Assurance Activities. While it is not necessary to have one test case per test listed in
an Assurance Activity, the evaluator must document in the test plan that each applicable
testing requirement in the ST is covered.
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The test plan identifies the platforms to be tested, and for those platforms not included in the
test plan but included in the ST, the test plan provides a justification for not testing the
platforms. This justification must address the differences between the tested platforms and the
untested platforms, and make an argument that the differences do not affect the testing to be
performed. It is not sufficient to merely assert that the differences have no affect; rationale
must be provided. If all platforms claimed in the ST are tested, then no rationale is necessary.
The test plan describes the composition of each platform to be tested, and any setup that is
necessary beyond what is contained in the AGD documentation. It should be noted that the
evaluator is expected to follow the AGD documentation for installation and setup of each
platform either as part of a test or as a standard pre-test condition. This may include special
test drivers or tools. For each driver or tool, an argument (not just an assertion) should be
provided that the driver or tool will not adversely affect the performance of the functionality by
the TOE and its platform. This also includes the configuration of the cryptographic engine to
be used. The cryptographic algorithms implemented by this engine are those specified by this
PP and used by the cryptographic protocol being evaluated (SSH).
The test plan identifies high-level test objectives as well as the test procedures to be followed
to achieve those objectives. These procedures include expected results. The test report
(which could just be an annotated version of the test plan) details the activities that took place
when the test procedures were executed, and includes the actual results of the tests. This
shall be a cumulative account, so if there was a test run that resulted in a failure; a fix
installed; and then a successful re-run of the test, the report would show a “fail” and “pass”
result (and the supporting details), and not just the “pass” result.
6.2.3.5 Class AVA Assurance Activities
Introduction
The evaluation lab is expected to survey open sources to discover what vulnerabilities have
been discovered in these types of products. In most cases, these vulnerabilities will require
sophistication beyond that of a basic attacker. Until penetration tools are created and
uniformly distributed to the evaluation labs, the evaluator will not be expected to test for these
vulnerabilities in the TOE. The labs will be expected to comment on the likelihood of these
vulnerabilities given the documentation provided by the vendor. This information will be used
in the development of penetration testing tools and for the development of future protection
profiles.
AVA_VAN.1 Activities
As with ATE_IND, the evaluator shall generate a report to document their findings with
respect to this requirement. This report could physically be part of the overall test report
mentioned in ATE_IND, or a separate document. The evaluator performs a search of public
information to determine the vulnerabilities that have been found in network infrastructure
devices and the implemented communication protocols in general, as well as those that
pertain to the particular TOE. The evaluator documents the sources consulted and the
vulnerabilities found in the report. For each vulnerability found, the evaluator either provides a
rationale with respect to its non-applicability, or the evaluator formulates a test (using the
guidelines provided in ATE_IND) to confirm the vulnerability, if suitable. Suitability is
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determined by assessing the attack vector needed to take advantage of the vulnerability. For
example, if the vulnerability can be detected by pressing a key combination on boot-up, a test
would be suitable at the assurance level of this PP. If exploiting the vulnerability requires
expert skills and an electron microscope, for instance, then a test would not be suitable and
an appropriate justification would be formulated.
6.2.4 Extended Assurance Activities
The extended assurance activities define the explicit activities specified in the [NDPP] and
[ERRATA3] for applicable SFR and SAR elements. These activities are detailed in the
Assurance Activity Report [AAR].
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7 TOE Summary Specification
This chapter describes the security functions:
 Security Audit (FAU)
 Cryptography (FCS)
 User Data Protection (FDP)
 Identification and Authentication (FIA)
 Security Management (FMT)
 Protection of the security functionality (FPT)
 TOE Access (FTA)
 Trusted Path/Channels (FTP)
Security Audit
7.1
FAU_GEN.1
The TOE is able to generate audit records of security relevant events as they occur. The
events that can cause an audit record to be logged include starting and stopping the audit
function, any use of an administrator command via the CLI interface, as well as all of the
events identified in Table 12. The different types of audit records that are provided by the TOE
are: info, debug, warning and fatal. Audit logs are stored as strings and have a format which
includes the severity, date and time of the event, the nature or type of the triggering event, an
indication of whether the event succeeded, failed or had some other outcome, and the identity
of the agent responsible for the event. The audit records are protected against unauthorized
access by only allowing authorized users to have access to our local audit logs. The logged
audit records also include event-specific content that includes at least all of the content
required in Table 12.
FAU_GEN.2
All actions performed by the TOE are associated with a username, this information is
maintained in the audit record, allowing the events stored there to be traced directly to the
user or system for which they were performed.
FAU_STG_EXT.1, FCS_TLS_EXT.1
There is a method of specifying the minimum severity level of the audit logs that shall be sent
to a syslog server. Locally stored audit logs are kept regardless of severity level. The severity
level of audit is configured through the syslog server configuration. The TOE supports up to
6400 log entries locally. The local audit log is a circular buffer and when the maximum number
of entries are reached, the oldest log entries shall be overwritten. Users that fail authentication
do not have access to our local audit logs. By default, all event logs are sent to the set of
configured syslog servers as well as the local store. The TOE uses the TLS protocol to send
generated audit records to an external syslog server.
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Cryptographic Support
7.2
FCS_CKM.1, FCS_CKM_EXT.4, FCS_COP.1 (1-4), FCS_RBG_EXT.1, FCS_SSH_EXT.1.1-
FCS_SSH_EXT_1.7, FCS_TLS_EXT.1
The TOE performs all cryptographic operations using a dedicated cryptographic library that
implements all cryptographic security functionalities listed in Table 21. The TOE uses a third-
party Mocana cryptographic library. All implemented algorithms have been validated to
correctly function on the exact hardware and software contained in the TOE, in accordance
with the NIST Cryptographic Algorithm Validation Program (CAVP). CAVP certificate numbers
are listed in Table 21. The evaluated configuration requires that the TOE must use enhanced
secure mode.
The cryptographic library handles random number generation for all cryptographic
functionality by utilizing a deterministic random bit generator (DRBG based on AES-CTR) that
is implemented according to the specifications outlined in NIST SP 800-90A and seeded from
multiple software-based entropy source
Table 21: Aruba 2920 Switch Series Cryptography
Requirement
Class
Requirement
Component
Aruba 2920 Switch Series Implementation Certificate
FCS:
Cryptographic
Support
FCS_CKM.1
Cryptographic Key
Generation
Implemented by the cryptographic library operating
in the enhanced secure mode.
TOE generates all host keys used for key
establishment in accordance with NIST SP 800-
56B.
RSA:#2043
FCS_CKM_EXT.4
Cryptographic Key
Zeroization
Zeroization of all CSP is performed by the
cryptographic library.
N/A
FCS_COP.1(1)
Cryptographic
Operation
(encryption/decryption)
AES operating in CBC, for data
encryption/decryption implemented to meet FIPS
PUB 197, “Advanced Encryption Standard (AES)” in
compliance with NIST SP 800-38A and NIST
SP800-38D. Encryption/decryption performed by
the cryptographic library operating in the enhanced
secure mode.
AES:#3982
FCS_COP.1(2)
Cryptographic
Operation
(cryptographic
signature)
RSA Digital Signature Algorithm (rDSA) with a key
size (modulus) of 2048 bits or greater in compliance
with FIPS PUB 186-3, “Digital Signature Standard”.
Cryptographic signature functionality is performed
by the cryptographic library.
RSA:#2043
FCS_COP.1(3)
Cryptographic
Operation
(cryptographic
hashing)
SHA-1, SHA-256, and SHA-512 cryptographic
hashing implemented to meet FIPS PUB 180-3,
“Secure Hash Standard” is performed by the
cryptographic library operating in the enhanced
secure mode.
SHS:#3287
FCS_COP.1(4) HMAC-SHA-1, HMAC -SHA-256, and HMAC -SHA- HMAC:#2598
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Requirement
Class
Requirement
Component
Aruba 2920 Switch Series Implementation Certificate
Cryptographic
Operation (keyed-hash
message
authentication)
512 keyed-hash message authentication
implemented to meet FIPS PUB 198-1, "The
Keyed-Hash Message Authentication Code”, and
FIPS PUB 180-3, “Secure Hash Standard” is
performed by the cryptographic library operating in
the enhanced secure mode.
FCS_RBG_EXT.1
Cryptographic
Operation (random bit
generation)
CTR_DRBG (AES-256) random bit generation
implemented to meet NIST SP 800-90A is
performed by the cryptographic library running in
the enhanced secure mode.
DRBG:#1175
Component Validation
Test
TLSv1.0 CVL#811
FCS_SSH_EXT.1
SSH
TOE implements SSHv2 protocol and supports
public key-based or password-based authentication
with following ciphers:
 AES-CBC-128, AES-CBC-256 for data
encryption
 SSH_RSA for public-key authentication
 hmac-sha1for data integrity
 diffie-hellman-group14-sha1 for key
exchange
N/A
FCS_TLS_EXT.1 TOE implements TLS v .1.0, TLS v1.1 and TLS
v1.2 using following ciphers:
 TLS_RSA_WITH_AES_128_CBC_SHA
 TLS_RSA_WITH_AES_256_CBC_SHA
N/A
The TOE implements the FCS_RBG_EXT (Random Bit Generation) security functional
component with the following parameters: according to NIST SP 800-90A using CTR-DRBG
(AES-256) seeded by an entropy source that accumulated entropy from a software-based
noise.
The TOE generally fulfills all of the NIST SP 800-56B ‘Recommendation for Pair-Wise Key
Establishment Schemes Using Integer Factorization Cryptography’ requirements without
extensions, with the following table documenting specific conformance to the publication:
Table 22: NIST SP800-56B implementation
NIST SP800-56B Section Reference
“should”, “should
not”, or “shall not”
Implemented accordingly?
5.6 Should Yes
5.8 Shall Not Yes
5.9 Shall Not (1st instance) Yes
5.9 Shall Not (2nd instance) Yes
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NIST SP800-56B Section Reference
“should”, “should
not”, or “shall not”
Implemented accordingly?
6.1 Should Not Yes
6.1 Should (1st instance) Yes
6.1 Should (2nd instance) Yes
6.1 Should (3rd instance) Yes
6.1 Should (4th instance) Yes
6.1 Shall Not (1st instance) Yes
6.1 Shall Not (2nd instance) Yes
6.2.3 Should Yes
6.5.1 Should Yes
6.5.2 Should Yes
6.5.2.1 Should Yes
6.6 Shall Not Yes
7.1.2 Should Yes
7.2.1.3 Should Not Applicable
7.2.1.3 Should Not Not Applicable
7.2.2.3 Shall Not Yes
7.2.2.3 Should (1st instance) Yes
7.2.2.3 Should (2nd instance) Yes
7.2.2.3 Should (3rd instance) Yes
7.2.2.3 Should (4th instance) Yes
7.2.2.3 Should Not Not Applicable
7.2.3.3 Should (1st instance) Not Applicable
7.2.3.3 Should (2nd instance) Not Applicable
7.2.3.3 Should (3rd instance) Not Applicable
7.2.3.3 Should (4th instance) Not Applicable
7.2.3.3 Should (5th instance) Not Applicable
7.2.3.3 Should Not Not Applicable
8 Should Not Applicable
8.3.2 Should Not Not Applicable
The TOE is designed to zeroize CSPs to mitigate the possibility of disclosure or modification.
CSPs are stored in FLASH and cleared when no longer used.
The following table identifies applicable CSPs and the zeroization procedure for each:
Table 23: Aruba 2920 Switch Series Keys and CSP’s Zeroization
Key/CSP Name Description Algorithm Storage Zeroization
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Key/CSP Name Description Algorithm Storage Zeroization
User Passwords Login
credentials for
authorized
administrators.
Direct User
Input
Flash- SHA1
RAM - plaintext
Ciphertext in nonvolatile
memory is not zerorized.
Plaintext in volatile memory
is cleared when the device is
powered down. Destroyed
by loss of capacitor charge
in the memory cell.
RSA private key Identity
certificates,
also used in
protocol
negotiations.
RSA,
generated
using DRBG
Flash – plaintext
RAM - plaintext
Private keys are over written
with zeros for both volatile
and non-volatile memory
when no longer in use.
Additionally, there is an
administrative command to
on-demand clear this CSP.
Public keys Peer public
keys used in
authentication.
RSA,
imported
FLASH -plaintext Public keys do not need to
be protected.
Overwritten by a new key
when updated.
Diffie-Hellman
Key Pair
Key agreement
for SSH
DH,
generated
using DRBG
RAM - plaintext When the session is
terminated, the volatile
memory is over written with
zeros to clear this CSP.
SSH Session Key SSHv2
symmetric
keys
AES keys,
generated
using KDF
RAM - plaintext When no longer in use, the
volatile memory is over
written with zeros to clear
this CSP.
TLS Pre-maser
Secret
Key agreement
for TLS
RSA or DH,
generated
using DRBG
RAM - plaintext When the session is
terminated, the volatile
memory is over written with
zeros to clear this CSP.
TLS Session
Keys
TLS symmetric
keys
AES keys,
generated
using KDF
RAM - plaintext When no longer in use, the
volatile memory is over
written with zeros to clear
this CSP.
DRBG Seed Seed for
PRNG
Entropy RAM – plaintext Cleared when the device is
powered down or overwritten
during reboot by the new
seed. Destroyed by loss of
capacitor charge in the
memory cell.
Firmware
Verification
Certificate
Certificate
used to verify
the device
firmware.
RSA, part of
firmware
FLASH - plaintext Public keys do not need to
be protected.
Overwritten by a new key as
part of firmware update.
FCS_SSH_EXT.1 Extended: SSH
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The TOE implements the SSHv2 protocol, compliant to the following RFCs: 4251, 4252, 4253,
and 4254. The TOE supports public key-based and password-based authentication.
SSH_RSA public key algorithm is used for authentication. AES-CBC-128, AES-CBC-256
algorithms are used for data encryption. hmac-sha1 are used for data integrity. Diffie-hellman-
group14-sha1 is used for key exchange. There is a 32,768 bytes packet buffer and packets
that exceed that size would be dropped. All implementations MUST be able to process
packets with an uncompressed payload length of 32,768 bytes or less and a total packet size
of 35000 bytes or less (including 'packet_length','padding_length', 'payload', 'random padding',
and 'mac'). The maximum of 35000 bytes is an arbitrarily chosen value that is larger than the
uncompressed length noted above. Implementations SHOULD support longer packets, where
they might be needed. For example, if an implementation wants to send a very large number
of certificates, the larger packets MAY be sent if the identification string indicates that the
other party is able to process them. However, implementations SHOULD check that the
packet length is reasonable in order for the implementation to avoid denial of service and/or
buffer overflow attacks.
Each SSHv2 session is encrypted using AES encryption supporting the following
cryptographic primitives: AES-CBC-128, and AES-CBC-256.
User Data protection
7.3
FDP_RIP.2
When a network packet is sent, the buffer used by the packet is recalled and managed by the
buffer pool. After that, if a new packet acquires a buffer from the buffer pool, the new packet
data will be used to overwrite any previous data in the buffer. If an allocated buffer exceeds
the size of the packet, the additional space will be overwritten (padded) with zeroes.
Identification and Authentication
7.4
FIA_PMG_EXT.1, FIA_UAU.7, FIA_UAU_EXT.2, FIA_UIA_EXT.1
The TOE is designed to require users to be identified and authenticated before they can
access any of the TOE functions. In the evaluated configuration, users can connect to the
TOE via a local console or remotely using SSHv2. The user is required to log in prior to
successfully establishing a session through which TOE functions can be exercised. Note that
the only capabilities allowed prior to users authenticating are the display of the warning
banner before authentication, and network switching services. When logging in the TOE will
not echo passwords so that passwords are not inadvertently displayed to the user and any
other users that might be able to view the login display. Note also that should a console user
have their session terminated (e.g., due to inactivity), they are required to successfully
authenticate, by re-entering their identity and authentication data, in order to regain access to
a new session.
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Security Management
7.5
FMT_MTD.1, FMT_SMF.1, FMT_SMR.2
The CLI interface provide capabilities for the authorized administrator to manage
cryptographic, audit, and authentication functions and data. The TOE provides two roles:
Manager (Security Administrator) and Operator. The manager user is simply the admin and
has full control over the device whereas the Operator user may view status information only.
Upon successful authentication to the TOE, the Manager role can manage the TSF data to
carry out services such as the input of keys, creation and management of user accounts,
viewing of system status, key zeroization, performing self-tests, loading new firmware, data
encryption and decryption, and configuring the device into factory default settings. Note that
the only capabilities allowed prior to users authenticating are the display of the warning
banner before authentication.
Protection of the security functionality
7.6
FPT_APW_EXT.1, FPT_SKP_EXT.1, FPT_STM.1, FPT_TST.1, FPT_TUD.1
The TOE is a standalone appliance designed to function independently, as a result, both
security functionality and measures to protect security functionality are focused on self-
protection.
The TOE employs both a dedicated communication channels (i.e. separate physical RJ-45
LAN connection for management) as well as cryptographic means (i.e. encryption) to protect
remote administration.
The TOE protects critical security parameters (CSP) such as stored passwords and
cryptographic keys so they are not directly accessible in plaintext. Locally stored password
information is obscured by use of hashing. Additionally, when login-related configuration
information is accessed through regular TOE interfaces it is obfuscated by substituting hashed
passwords with a series of asterisks.
The TOE synchronizes the local time with an external SNTP server and Timep Server.
The time stamp is used in the following areas:
 System event logs
 Timer expiry check to kick in periodic Entropy collection
 Password change enforcement after configured timer is expired
 Timer expiry check to download new certificates
 Certificate validity checks – expiry, valid before
 Session inactivity timer checks
 Timer expiry to de authenticate/re-authenticate network clients
 Timer expiry check to clear entries from DHCP snooping database
 All administrator actions – documented in the ST
 Session creation and closing time for TLS, SSH, Telnet
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 Time stamp used in crypto logs – KAT, conditional tests, password changes
The TOE performs diagnostic self-tests during start-up and generates audit records to
document failure. Some low-level critical failure modes can prevent TOE start-up and as a
result will not generate audit records. In such cases, TOE appliance will enter failure mode
displaying error codes, typically displayed on the console. The TOE can be configured to
reboot or to stop with errors displayed when non-critical errors are encountered. The
cryptographic library performs self-tests during startup; the messages are displayed on the
console and syslog records generated for both successful and failed tests.
The TOE’s Firmware Version is WB_15_18_0011I. Upgrading the ArubaOS firmware is a
manual process performed by an authorized administrator. The firmware is digitally signed
with RSA. The TOE uses the public key to verify the digital signature. The firmware is readily
available on the HPE website. Uploading the firmware to the devices does require successful
authentication to the devices. The downloaded image maybe uploaded to the appliances
using a secure method such as secure copy. The firmware validation during the download
process and will reject the firmware if validation fails. The firmware images are signed by
HPE, and the HPE public certificate is stored in the running firmware.
TOE access
7.7
FTA_SSL_EXT.1, FTA_SSL.3, FTA_SSL.4
The TOE can be configured by an administrator to set an interactive session timeout value
(any integer value in minutes and optionally in seconds). The inactivity timeout is disabled by
default. This session timeout value is applicable to both local and remote sessions. A remote
session that is inactive (i.e., no commands issuing from the remote client) for the defined
timeout value will be terminated. A local session that is similarly inactive for the defined
timeout period will be terminated. The user will be required to re-enter their user id and their
password so they can establish a new session once a session is terminated. If the user id
and password match those of the user that was locked, the session is reconnected with the
console and normal input/output can again occur for that user.
FTA_TAB.1
The TOE can be configured to display administrator-configured advisory banners. A login
banner can be configured to display warning information along with login prompts. The
banners will be displayed when accessing the TOE via the console, and SSH interfaces.
Trusted path/channels
7.8
FTP_ITC.1, FTP_TRP.1
The TOE can be configured to export audit records to an external syslog server. In order to
protect exported audit records from disclosure or modification, the TOE utilizes TLS protocol
for this purpose.
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To support secure remote administration, the TOE includes an implementation of SSHv2. A
remote host (presumably acting on behalf of an administrator) can initiate a secure remote
connection for the purpose of security management. Note that only the local console is
available by default and each of these remote administration services can be independently
enabled by an administrator. In the case of SSHv2, the TOE offers a secure command line
interface (CLI) interactive administrator session. An administrator with an appropriate SSHv2-
capable client can establish secure remote connections with the TOE using AES-CBC-128 or
AES-CBC-256, HMAC-SHA1 and diffie-hellman-group14-sha1. To successfully establish an
interactive administrative session, the administrator must be able to provide acceptable user
credentials (e.g., user id and password or RSA credentials), after which they will be able to
issue commands within their assigned authorizations.
The TOE supports TLS version 1.0 with all claimed ciphers and no optional extensions for the
use with the external audit server. The following ciphers are used:
 TLS_RSA_WITH_AES_128_CBC_SHA
 TLS_RSA_WITH_AES_256_CBC_SHA
All of the secure protocols are supported by the cryptographic operations provided by the
NIST-validated cryptographic algorithms included in the TOE implementation.
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8 Acronyms and Terminology
8.1.1 Acronyms
The following table defines CC and Product specific acronyms used within this Security
Target.
Table 24: Acronyms
Acronym Definition
CC Common Criteria
CSP Critical Security Parameter
FIPS Federal Information Processing Standard
HTTP Hypertext Transfer Protocol
IP Internet Protocol
IT Information Technology
NIST National Institute of Standards and Technology
OE Operational Environment
OS Operating System
OSP Organizational Security Policy
PP Protection Profile
RFC Request for Comment
SAR Security Assurance Requirement
SFR Security Functional Requirement
SSH Secure Shell
ST Security Target
TOE Target of Evaluation
TSF TOE Security Function
TSFI TOE Security Function Interface
8.1.2 Product Acronyms and Terminology
The following table defines the CC and Product-specific terminology used within this Security
Target.
Table 25: Terminology
Terminology Definition
AAA Authentication, Authorization, and Accounting (AAA). A security
architecture for distributing systems for controlling remote access to
services.
RADIUS Remote Authentication Dial-In User Service (RADIUS) protocol that
includes authentication and authorization.
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Terminology Definition
RSA Ron Rivest, Adi Shamir, Leonard Adleman. Public-key cryptosystem
algorithm.
Routing Protocol A routing protocol is a means whereby network devices exchange
information about the state of the network and used to make decision
about the best path for packets to the destination.
TACACS+ Terminal Access Controller Access-Control System Plus, an access
control network protocol.