Trend Micro TippingPoint Threat Protection
System (TPS) v5.3 Security Target
Version 1.0
January 1, 2022
Prepared for:
11305 Alterra Parkway
Austin, TX 78758
Prepared by:
Common Criteria Testing Laboratory
6841 Benjamin Franklin Drive, Columbia, Maryland 21046
1. SECURITY TARGET INTRODUCTION............................................................................................................5
1.1 SECURITY TARGET, TOE AND CC IDENTIFICATION........................................................................................5
1.2 CONFORMANCE CLAIMS.................................................................................................................................6
1.3 CONVENTIONS ................................................................................................................................................7
1.3.1 Terminology ..........................................................................................................................................7
1.3.2 Abbreviations.........................................................................................................................................7
2. TOE DESCRIPTION..........................................................................................................................................9
2.1 TOE OVERVIEW .............................................................................................................................................9
2.2 TOE ARCHITECTURE....................................................................................................................................11
2.2.1 Physical Boundaries.............................................................................................................................11
2.2.1.1 Software Requirements........................................................................................................................12
2.2.1.2 Additional Hardware Requirements.....................................................................................................12
2.2.1.3 Exclusions............................................................................................................................................12
2.2.2 Logical Boundaries..............................................................................................................................13
2.3 TOE DOCUMENTATION ................................................................................................................................14
3. SECURITY PROBLEM DEFINITION ..........................................................................................................15
4. SECURITY OBJECTIVES ..............................................................................................................................16
4.1 SECURITY OBJECTIVES FOR THE OPERATIONAL ENVIRONMENT ...................................................................16
5. IT SECURITY REQUIREMENTS..................................................................................................................18
5.1 EXTENDED REQUIREMENTS..........................................................................................................................18
5.2 TOE SECURITY FUNCTIONAL REQUIREMENTS .............................................................................................18
5.2.1 Security audit (FAU) ...........................................................................................................................19
5.2.2 Cryptographic support (FCS)...............................................................................................................22
5.2.3 Identification and authentication (FIA)................................................................................................25
5.2.4 Security management (FMT)...............................................................................................................25
5.2.5 Protection of the TSF (FPT) ................................................................................................................26
5.2.6 TOE access (FTA) ...............................................................................................................................27
5.2.7 Trusted path/channels (FTP)................................................................................................................27
5.3 TOE SECURITY ASSURANCE REQUIREMENTS...............................................................................................28
6. TOE SUMMARY SPECIFICATION..............................................................................................................29
6.1 SECURITY AUDIT..........................................................................................................................................29
6.1.1 FAU_GEN.1: Audit Data Generation..................................................................................................29
6.1.2 FAU_GEN.2: User Identity Association .............................................................................................30
6.1.3 FAU_STG.1: Protected Audit Trail Storage........................................................................................30
6.1.4 FAU_STG_EXT.1: Protected Audit Event Storage.............................................................................30
6.1.5 FAU_STG_EXT.3/LocSpace: Action in Case of Possible Audit Data Loss .......................................30
6.2 CRYPTOGRAPHIC SUPPORT...........................................................................................................................31
6.2.1 FCS_CKM.1: Cryptographic Key Generation.....................................................................................32
6.2.2 FCS_CKM.2: Cryptographic Key Establishment................................................................................32
6.2.3 FCS_CKM.4: Cryptographic Key Destruction....................................................................................32
6.2.4 FCS_COP.1/DataEncryption Cryptographic Operation (AES Data Encryption/Decryption) .............33
6.2.5 FCS_COP.1/SigGen Cryptographic Operation (Signature Generation and Verification) ...................33
6.2.6 FCS_COP.1/Hash Cryptographic Operation (Hash Algorithm) ..........................................................33
6.2.7 FCS_COP.1/KeyedHash: Cryptographic Operation (Keyed Hash Algorithm) ...................................34
6.2.8 FCS_RBG_EXT.1: Random Bit Generation .......................................................................................34
6.2.9 FCS_SSHC_EXT.1 – SSH Client Protocol / FCS_SSHS_EXT.1 – SSH Server Protocol..................34
6.3 IDENTIFICATION AND AUTHENTICATION ......................................................................................................35
6.3.1 FIA_AFL.1 Authentication Failure Management................................................................................35
6.3.2 FIA_PMG_EXT.1: Password Management ........................................................................................35
6.3.3 FIA_UAU.7: Protected Authentication Feedback ...............................................................................35
6.3.4 FIA_UIA_EXT.1: User Identification and Authentication, FIA_UAU_EXT.2: Password-based
Authentication Mechanism..................................................................................................................................35
6.4 SECURITY MANAGEMENT.............................................................................................................................36
6.4.1 FMT_MOF.1/ManualUpdate: Management of Security Functions Behaviour Requests....................36
6.4.2 FMT_MOF.1/Functions: Management of Security Functions Behaviour ...........................................36
6.4.3 FMT_MTD.1/CoreData: Management of TSF Data ...........................................................................36
6.4.4 FMT_SMF.1: Specification of Management Functions ......................................................................36
6.4.5 FMT_SMR.2: Restrictions on Security Roles .....................................................................................36
6.5 PROTECTION OF THE TSF .............................................................................................................................36
6.5.1 FPT_APW_EXT.1: Protection of Administrator Passwords ...............................................................37
6.5.2 FPT_SKP_EXT.1: Protection of TSF Data (for Reading of all Pre-shared, Symmetric and Private
Keys) 37
6.5.3 FPT_STM_EXT.1: Reliable Time Stamps ..........................................................................................37
6.5.4 FPT_TST_EXT.1: TSF Testing...........................................................................................................37
6.5.5 FPT_TUD_EXT.1: Trusted Update.....................................................................................................37
6.6 TOE ACCESS................................................................................................................................................38
6.6.1 FTA_SSL.3: TSF-initiated Termination..............................................................................................38
6.6.2 FTA_SSL.4: User-initiated Termination .............................................................................................38
6.6.3 FTA_SSL_EXT.1: TSF-initiated Session Locking..............................................................................38
6.6.4 FTA_TAB.1: Default TOE Access Banners........................................................................................38
6.7 TRUSTED PATH/CHANNELS ..........................................................................................................................38
6.7.1 FTP_ITC.1: Inter-TSF Trusted Channel..............................................................................................38
6.7.2 FTP_TRP.1/Admin: Trusted Path........................................................................................................38
7. PROTECTION PROFILE CLAIMS...............................................................................................................40
8. RATIONALE.....................................................................................................................................................40
LIST OF TABLES
Table 1 TOE Hardware Appliances.........................................................................................................................11
Table 2 TOE Virtual Machine Appliances ..............................................................................................................12
Table 3 TOE Security Functional Components ......................................................................................................19
Table 4 Auditable Events..........................................................................................................................................21
Table 5 Security Assurance Components ................................................................................................................28
Table 6 Cryptographic Functions ............................................................................................................................32
Table 7 Secret keys, Private keys and CSPs............................................................................................................33
Table 8 HMAC Properties ........................................................................................................................................34
1. Security Target Introduction
This section introduces the Target of Evaluation (TOE) and provides the Security Target (ST) and TOE references,
TOE overview, and TOE description. It also contains the ST and TOE conformance claims, ST conventions, glossary,
and list of abbreviations.
The Security Target contains the following additional sections:
 TOE Description (Section 2)
 Trend Micro TPS offers a series of documents that describe the installation process for the TOE, as well as
guidance for subsequent use and administration of the system security features. The following documents are
available for download from the Trend Micro Online Help Center: https://docs.trendmicro.com/en-
us/tippingpoint/threat-protection-system.aspx.
 Trend Micro TippingPoint Threat Protection System Hardware Specification and Installation Guide,
September 2020
 Trend Micro TippingPoint Threat Protection System Command Line Interface Reference, November 2019
 Trend Micro TippingPoint Virtual Threat Protection System (vTPS) User Guide, June 2019
The following document is available on the TOE’s Product Compliant List web page on the NIAP web site:
 Trend Micro Common Criteria Evaluated Configuration Guide (CCECG) for TPS v5.3, 1 January 2022.
 Security Problem Definition (Section 3)
 Security Objectives (Section 4)
 IT Security Requirements (Section 5)

 TOE Summary Specification (Section 1)

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 Protection Profile Claims (Section 1)
 Rationale (Section 8).
1.1 Security Target, TOE and CC Identification
ST Title – Trend Micro TippingPoint Threat Protection System (TPS) v5.3 Security Target
ST Version – 1.0
ST Date – January 1, 2022
TOE Identification – Trend Micro TippingPoint Threat Protection System (TPS) v5.3.0
The TOE consists of the following appliances running TPS software v5.3.0:
 TPS 1100TX
 TPS 5500TX
 TPS 8200TX
 TPS 8400TX
 vTPS
The 1100TX includes one I/O module slot, the 5500TX and the 8200TX include two I/O module slots, and the 8400TX
includes four I/O module slots. The following standard I/O modules are supported for the 1100TX, 5500TX, 8200TX,
and 8400TX security devices.
Standard I/O module Trend Micro part number
TippingPoint 6-Segment Gig-T TPNN0059
TippingPoint 6-Segment GbE SFP TPNN0068
TippingPoint 4-Segment 10 GbE SFP+ TPNN0060
TippingPoint 1-Segment 40 GbE QSFP+ TPNN0069
The vTPS virtual appliances consist of TPS v5.3.0, running on hosts with Intel Xeon CPUs based on Ivy Bridge or
newer that support the RDRAND instruction and either
 an ESXi Hypervisor: Version 5.5 (Patch 3116895), Version 6.0 (Patch 5572656); Version 6.5, Version 6.7
or
 a RHEL version 7.1 KVM.
Evaluation testing of vTPS was conducted on the following platforms:
 ESXi 6.5 on Intel Xeon Silver 4116 (Skylake microarchitecture)
 KVM 1.5.3 on RHEL 7.5 on Intel Xeon Gold 6126 (Skylake microarchitecture).
The vTPS virtual appliances use virtual data ports and do not require I/O modules.
The vTPS appliances are provided as image files:
 vTPS_vmw_5.3.0_xxxx.zip (standard)
 vTPS_vmw_performance_v5.3.0_xxxx.zip (performance).
1.2 Conformance Claims
This TOE is conformant to the following CC specifications:
 This TOE claims exact conformance to the collaborative Protection Profile for Network Devices, Version
2.2e, 23-March-2020, [CPP_ND_V2.2E] including the following optional and selection-based SFRs:
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FAU_STG.1, FAU_STG_EXT.3/LocSpace, FCS_SSHC_EXT.1, FCS_SSHS_EXT.1, and
FMT_MOF.1/Functions.
The following NIAP Technical Decisions apply to this PP/ST and have been accounted for in the ST
development and the conduct of the evaluation:
o TD0592 – NIT Technical Decision for Local Storage of Audit Records
o TD0591 – NIT Technical Decision for Virtual TOEs and hypervisors
o TD0581 – NIT Technical Decision for Elliptic curve-based key establishment and NIST SP 800-
56Arev3
o TD0580 – NIT Technical Decision for clarification about use of DH14 in NDcPPv2.2e
o TD0572 – NiT Technical Decision for Restricting FTP_ITC.1 to only IP address identifiers
o TD0571 – NiT Technical Decision for Guidance on how to handle FIA_AFL.1
o TD0570 – NiT Technical Decision for Clarification about FIA_AFL.1
o TD0569 – NIT Technical Decision for Session ID Usage Conflict in FCS_DTLSS_EXT.1.7
o TD0564 – NiT Technical Decision for Vulnerability Analysis Search Criteria
o TD0563 – NiT Technical Decision for Clarification of audit date information
o TD0547 – NIT Technical Decision for Clarification on developer disclosure of AVA_VAN
o TD0538 – NIT Technical Decision for Outdated link to allowed-with list
o TD0536 – NIT Technical Decision for Update Verification Inconsistency
The following NIAP Technical Decisions do not apply to this ST/TOE:
o TD0556 – NIT Technical Decision for RFC 5077 question
This TD is not applicable to the TOE. It affects FCS_TLSS_EXT.1, which is not claimed by the ST.
o TD0555 – NIT Technical Decision for RFC Reference incorrect in TLSS Test
This TD is not applicable to the TOE. It affects FCS_TLSS_EXT.1, which is not claimed by the ST.
o TD0546 – NIT Technical Decision for DTLS - clarification of Application Note 63
This TD is not applicable to the TOE. It affects FCS_DTLSC_EXT.1, which is not claimed by the ST.
o TD0537 – NIT Technical Decision for Incorrect Reference to FCS_TLSC_EXT.2.3
This TD is not applicable to the TOE. It affects FCS_TLSC_EXT.2, which is not claimed by the ST.
o TD0528 – NIT Technical Decision for Missing EAs for FCS_NTP_EXT.1.4
This TD is not applicable to the TOE. It affects FCS_NTP_EXT.1, which is not claimed by the ST.
o TD0527 – Updates to Certificate Revocation Testing (FIA_X509_EXT.1)
This TD is not applicable to the TOE. It affects the [NDcPP]’s iterations of FIA_X509_EXT.1, neither
of which is claimed by the ST.
 Common Criteria for Information Technology Security Evaluation Part 2: Security functional components,
Version 3.1, Revision 5, April 2017.
 Part 2 Extended
 Common Criteria for Information Technology Security Evaluation Part 3: Security assurance components,
Version 3.1 Revision 5, April 2017.
 Part 3 Conformant
1.3 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 adding a string starting with “/” (e.g. “FCS_COP.1/Hash”).
o Assignment: allows the specification of an identified parameter. Assignments are indicated using
bold and are surrounded by brackets (e.g., [assignment]). Note that an assignment within a selection
would be identified in italics and with embedded bold brackets (e.g., [[selected-assignment]]).
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o Selection: allows the specification of one or more elements from a list. Selections are indicated using
bold italics and are surrounded by brackets (e.g., [selection]).
o Refinement: allows the addition of details. Refinements are indicated using bold, for additions, and
strike-through, for deletions (e.g., “… all objects …” or “… some big things …”). Note that ‘cases’
that are not applicable in a given SFR have simply been removed without any explicit identification.
 Other sections of the ST – Other sections of the ST use bolding to highlight text of special interest, such as
captions.
1.3.1 Terminology
This section identifies TOE-specific terminology.
DV Digital Vaccine
HA High Availability
ISO An ISO image (or .ISO file) is a computer file that is an exact copy of an
existing file system
LSM Local Security Manager
SMS Security Management System
TPS TippingPoint Threat Protection System (the TOE)
1.3.2 Abbreviations
This section identifies abbreviations and acronyms used in this ST.
AES Advanced Encryption Standard
API Application Programming Interface
CBC Cipher-Block Chaining
CA Certificate Authority
CLI Command Line Interface
CM Configuration Management
DH Diffie-Hellman
FIPS Federal Information Processing Standard
HMAC Hashed Message Authentication Code
HTTP Hypertext Transfer Protocol
ICMP Internet Control Message Protocol
NIST National Institute of Standards and Technology
OS Operating System
RSA Rivest, Shamir and Adleman (algorithm for public-key cryptography)
SAR Security Assurance Requirement
SFR Security Functional Requirement
SHA Secure Hash Algorithm
SSD Solid State Drive
SSH Secure Shell
SSL Secure Socket Layer
ST Security Target
TOE Target of Evaluation
TSF TOE Security Functions
UAU User Authentication
VM Virtual Machine
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2. TOE Description
The Target of Evaluation (TOE) is the TippingPoint Threat Protection System (TPS) v5.3. TPS is a network security
platform that offers threat protection, shielding network vulnerabilities, blocking exploits, and defending against
known and zero-day attacks. TPS provides coverage across various threat vectors, including advanced threats,
malware, and phishing attempts. It employs a combination of technologies, such as deep packet inspection, threat
reputation, and malware analysis, on a flow-by-flow basis, in order to detect and prevent attacks on the network. The
product consists of the Threat Suppression Engine (TSE), Traffic Management filters, and Digital Vaccine (DV) filters
that provide threat protection, shielding network vulnerabilities, blocking exploits, and defending against known and
zero-day attacks. These threat protection functions may be enabled and used without affecting the claimed security
functionality; however these features have not been evaluated. The TOE was evaluated as a network device only. The
focus of this evaluation is on the TOE functionality supporting the claims in the collaborative Protection Profile for
Network Devices [CPP_ND_V2.2E].
The security functionality specified in [CPP_ND_V2.2E] includes protection of communications between the TOE
and external IT entities, identification and authentication of administrators, auditing of security-relevant events, ability
to verify the source and integrity of updates to the TOE, and use of NIST-validated cryptographic mechanisms.
The TPS version 5.3 appliances included in the evaluation are TPS 1100TX, TPS 5500TX, TPS 8200TX, TPS
8400TX, and vTPS. Each physical appliance includes an RJ-45 console port and a 1 GbE copper management port.
The 8200TX and 8400TX devices are high-end systems that are designed for network environments requiring up to
40 Gbps of inspection throughput. The 1100TX and 5500TX devices support the same I/O modules as the 8200TX
and 8400TX so these models can support the same capacity on a per-module basis, but they have fewer module slots
for a reduced overall performance capacity. The concept of IO modules is not applicable to the vTPS model which
has two virtual data ports.
The vTPS model is a virtual appliance supported on VMware and KVM. Each virtual platform supports a virtual serial
console and virtual Ethernet management port. Each virtual appliance deployed in normal mode provides 500 Mbps
IPS inspection throughput with two vCPUs or 1 Gbps IPS inspection throughput with three vCPUs. When deployed
in Performance mode, six vCPUs provide 2 Gbps IPS inspection throughput. Each vTPS supports one vNIC (VMware)
or one bridge interface (KVM) for management.
All models (hardware and virtual) provide the same security protections and support all of the functionality specified
in the [CPP_ND_V2.2E].
The TOE uses NIST validated cryptographic algorithms and must be configured to operate in FIPS mode in order to
use them.
2.1 TOE Overview
The TippingPoint Threat Protection System v5.3 is a network device provided as a standalone hardware or virtual
appliance. The appliances include the TPS 5.3 software.
Each appliance also includes the hardened Linux-4.14.76-yocto-standard operating system. All hardware models
include external user disk memory (CFast or SSD) that is used to store all traffic logs, snapshots, ThreatDV URL
Reputation Feed, User-defined URL Entries database, and packet capture data. The external memory can also be used
for troubleshooting purposes. vTPS appliances do not have a separate user disk. The vTPS virtual appliances have a
single-disk architecture with either an 8-GB user disk partition (for standard) or 16-GB user disk partition (for
Performance). The TX hardware models include standard I/O modules used to receive and transmit packets for the
threat detection functions. The 1100TX includes one I/O module slot, the 5500TX and the 8200TX include two I/O
module slots, and the 8400TX includes four I/O module slots. The supported standard I/O modules are identified in
Section 1.1. The concept of IO modules is not applicable to vTPS which has two virtual data ports.
The TOE provides authorized administrators with a CLI accessible via SSH to manage the TOE and requires users to
be identified and authenticated before they can access any of the TOE functions. For each session, the user is required
to log in prior to successfully establishing a session through which TOE functions can be exercised. The only
capabilities allowed prior to users authenticating are the display of the warning banner before authentication, and the
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TOE may send Echo Reply in response to Echo Request ICMP messages received at the Management interface. The
banner is displayed on every login attempt.
The authorized administrators interact locally with the TOE via console or remotely using SSH where OpenSSL is
used to implement SSH and its underlying core cryptographic algorithms to secure the underlying communications.
The TOE also uses SSH for communications with trusted external syslog servers. The TOE is operated in FIPS mode
and includes NIST validated cryptographic algorithms.
The TOE local and remote administration is provided through the Command Line Interface (CLI). The TOE supports
Super User, Admin, and Operator roles that map to the Security Administrator role in the protection profile. Each user
must be assigned a role in order to perform any management action.
The TOE can communicate with the Trend Micro website to download TOE updates. The management CLI provided
by the TOE can be used by Super User or Admin administrators to update the TOE, and to query the currently
executing software version of the TOE. Software updates are available as package files. The update package is
published on Trend Micro support website and protected with a SHA-256 hash, and signed using 2048-bit RSA
public/private key pair.
The TOE audit log provides an internal log implementation that can be used to store and review audit records locally.
Access is available to the Super User. The TOE can also be configured to send generated audit records to an external
Syslog server using SSH. When configured to send audit records to a syslog server, audit records are written to the
external syslog as they are written locally to the TOE Audit log.
A sample deployment scenario is as follows.
Figure 1 – Sample TPS Network Deployment Scenario
Figure 1 Sample TPS Network Deployment Scenario depicts an example of a corporate network with the TPS
deployed to a variety of locations. A single TPS can be installed at the perimeter of the network, at the network core,
on your intranet, or in all three locations. Though not depicted in the figure, the evaluated deployment includes a
syslog server. The SMS appliance may be used in the evaluated configuration however it is not covered by the
evaluation and no claims about its behavior are made. Note that the TOE is evaluated as a single appliance, not a
distributed solution. A single appliance is sufficient for the TOE to address the claimed security functionality.
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Deployment of multiple separate instances of the TOE is necessary only to ensure full coverage of network segments
that require monitoring.
vTPS appliances are deployed to appropriate hardware that are located between L2 broadcast domains (VLANs or
switches).
2.2 TOE Architecture
This section describes the TOE physical and logical boundaries.
2.2.1 Physical Boundaries
The TOE is a self-contained hardware appliance or VM with TPS 5.3 software.
The following table identifies the hardware appliance models included in the TOE.
Device Main Processor Storage Network Ports Operating System /
Software
TPS1100TX Intel Pentium D-1517
(Broadwell) CPU / 4
Cores, 8 Threads,
1.6GHz, 25W TDP
Storage = 8GB
CFAST (Internal)
/ 8GB (External)
One IOM Slot Hot-
Swappable
Up to 6 1GE
Segments, Up to 4
10GE Segments, 1
40GE Segment
Linux-4.14.76-yocto-
standard
OpenSSL 1.0.2l-fips
TPS5500TX Intel Xeon D-1559
(Broadwell) CPU / 12
Cores, 24 Threads,
1.5GHz, 45W TDP
Storage = 32GB
CFAST (Internal)
/ 32GB (External)
Two IOM Slots, Hot-
Swappable
Up to 12 1GE
Segments, Up to 8
10GE Segments, Up
to 2 40GE Segments
Linux-4.14.76-yocto-
standard
OpenSSL 1.0.2l-fips
TPS8200TX 2x Intel Xeon E5-
2648Lv3 (Haswell)
CPUs / 12 Cores, 24
Threads, 1.8GHz,
75W TDP
Storage = 32GB
CFAST (Internal)
/ 32GB (External)
Two IOM Slots, Hot-
Swappable
Up to 12 1GE
Segments, Up to 8
10GE Segments, Up
to 2 40GE Segments
Linux-4.14.76-yocto-
standard
OpenSSL 1.0.2l-fips
TPS 8400TX 2x Intel Xeon E5-
2648Lv3 (Haswell)
CPUs / 12 Cores, 24
Threads, 1.8GHz,
75W TDP
Storage = 128 GB
DRAM (Internal)
/ 32 GB (External)
Four IOM Slots, Hot-
Swappable
Up to 24 1GE
Segments, Up to 16
10GE Segments, Up
to 4 40GE Segments
Linux-4.14.76-yocto-
standard
OpenSSL 1.0.2l-fips
Table 1 TOE Hardware Appliances
The TippingPoint vTPS is deployed between layer 2 (L2) broadcast domains (virtual switches) using a Normal image
or a Performance image. Performance image offers an increased capacity for vCPUs and threading.
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Virtual Machine appliance TOEs consist of TPS v5.3, including Linux-4.14.76-yocto-standard and OpenSSL 1.0.2l-
fips and requires the following:
Device Image Number
of
vCPUs
Memory Disk Operating System /
Software
vTPS Normal image:
 VMware:
vTPS_vmw_5.3.0_xxxx.z
ip
2 – 3 8GB 16.2GB ESXi Hypervisor version:
Version 5.5 (Patch
3116895), Version 6.0
(Patch 5572656), Version
6.5, Version 6.7,
or
RHEL version 7.1 KVM
Performance image:
 VMware:
vTPS_vmw_performance
_v5.3.0_xxxx.zip
6 16GB 16.2GB ESXi Hypervisor version:
Version 5.5 (Patch
3116895), Version 6.0
(Patch 5572656), Version
6.5, Version 6.7,
or
RHEL version 7.1 KVM
Table 2 TOE Virtual Machine Appliances
vTPS virtual appliances are supported on hosts with Intel Xeon CPUs based on Ivy Bridge or newer that support the
RDRAND instruction.
2.2.1.1 Software Requirements
The TOE virtual (VM) appliances are delivered as an installation disk (or ISO image). They require that the following
are installed on the host hardware system:
 VMware ESXi 5.5, or 6.0, or 6.5, or 6.7
 RHEL version 7.1 KVM
2.2.1.2 Additional Hardware Requirements
 External audit storage requires the use of syslog servers.
 An administrative workstation or terminal emulator equipped with SSH client software.
2.2.1.3 Exclusions
The TippingPoint Threat Protection System solution includes Local Security Management (LSM) and Security
Management System (SMS) components that provides remote administrative management. In the evaluated
configuration, all management must be performed using the CLI.
The TPS intrusion prevention services including collection, inspection, analyzation, and reaction capabilities applied
to network traffic have not been evaluated and no claims are made in relation to these functions. They may be used in
the evaluated configuration without affecting the claimed security functions.
The Digital Vaccine service is provided by the TOE developer and assumed to be a trusted service. It may be used in
the evaluated configuration, however it is not included in the TOE itself and therefore no claims are made about its
ability to provide adequate or timely filter updates.
The TPS devices can be configured to use sFlow record emission to sample a random flow of traffic and send the data
to a collector server for analysis. SFlow and collector services are excluded from the evaluated configuration and must
not be configured or used.
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Two TippingPoint Threat Protection appliances can be installed in a redundant network configuration. This system
configuration provides High Availability (HA), ensuring that the network traffic always flows at wire speeds in the
event of any internal hardware or software failure on the device. HA configurations are not covered in the scope of
the evaluation.
TippingPoint Threat Protection appliances can be installed in a stacking configuration. Stacking enables an
organization to increase the overall inspection capacity of the TPS by grouping multiple TX Series devices and pooling
their resources. Stacking configurations are not included in the evaluated configuration. The devices are being
evaluated in a standalone configuration.
Optional bypass I/O modules are available for the 1100TX, 5500TX, 8200TX, and 8400TX security devices that
provide high availability for copper and fiber segments. These modules are not included in the TOE and must not be
used in the evaluated configuration.
2.2.2 Logical Boundaries
This section summarizes the security functions provided by the TOE:
 Security audit
 Cryptographic support
 Identification and authentication
 Security management
 Protection of the TSF
 TOE access
 Trusted path/channels
2.2.2.1 Security audit
The TOE is able to generate audit records for security relevant events specified in [CPP_ND_V2.2E]. The TOE can
be configured to store the audit records locally on the TOE and can also be configured to send the logs to a designated
external log server. The audit records in local audit storage cannot be modified or deleted. In the event the space
available for storing audit records locally is exhausted, the TOE deletes the oldest historical log file, renames the
current log file to be a historical file, and creates a new current log file. The TOE will write a warning to the audit trail
when the space available for storage of audit records exceeds 75% space remaining threshold.
2.2.2.2 Cryptographic support
The TOE is operated in FIPS mode and includes FIPS-approved and NIST-recommended cryptographic algorithms.
The TOE provides cryptographic mechanisms for symmetric encryption and decryption, cryptographic signature
services, cryptographic hashing services, keyed-hash message authentication services, deterministic random bit
generation seeded from a suitable entropy source, and key zeroization. The cryptographic mechanisms support SSH
used for secure communication, both as client and server.
2.2.2.3 Identification and authentication
The TOE requires users (i.e., administrators) to be successfully identified and authenticated before they can access
any security management functions available in the TOE. The TOE offers both a locally connected console and a
network accessible interface over SSH to support administration of the TOE.
The TOE supports the local (i.e., on device) definition of administrators with usernames and passwords. When a user
is authenticated at the local console, no information about the authentication data (i.e., password) is echoed to the user.
Passwords can be composed of any combination of upper and lower case letters, numbers, and the following special
characters: !; @; #; $; %; ^; &; *; (; ); ,; .; ?; <; >; and /.
The TOE provides authentication failure handling for remote administrator access. When the defined number of
unsuccessful authentication attempts has been reached, the remote administrator accessing the TOE via SSH is locked
out for an administrator configurable period of time. Authentication failures by remote administrators cannot lead to
a situation where no Administrator access is available to the TOE since administrator access is still available via local
console.
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2.2.2.4 Security management
The TOE provides administrator roles and supports local and remote administration. The TOE supports Super User,
Admin, and Operator roles that map to the Security Administrator role in the claimed PP. Each user must be assigned
a role in order to perform any management action. The TOE provides authorized administrators with a CLI accessible
via SSH for TOE configuration and to monitor, collect, log, and react in real-time to potentially malicious network
traffic.
2.2.2.5 Protection of the TSF
The TOE protects sensitive data such as stored passwords and cryptographic keys so that they are not accessible even
by an administrator. It also provides its own timing mechanism that ensures reliable time information is available.
The TOE provides mechanisms to view the current version of the TOE and to install updates of the TOE software.
TOE updates are initiated manually by the Super User or Admin, who can verify the integrity of the update prior to
installation using a digital signature.
The TOE performs tests for software module integrity and cryptographic known-answer tests.
2.2.2.6 TOE access
The TOE implements administrator-configurable session inactivity limits for local interactive sessions at the console
and for SSH sessions. The TOE will terminate such sessions when the inactivity period expires. In addition,
administrators can terminate their own interactive sessions by logging out at the console and SSH.
The TOE supports an administrator-configurable TOE access banner that is displayed prior to a user completing the
login process at the CLI. This is implemented for both local and remote management connections (console, SSH).
2.2.2.7 Trusted path/channels
The TOE protects interactive communication with remote administrators using SSH. SSH ensures confidentiality of
transmitted information and detects any loss of integrity.
The TOE also uses SSH to protect the transmission of audit records to an external audit server
2.3 TOE Documentation
Trend Micro TPS offers a series of documents that describe the installation process for the TOE, as well as guidance
for subsequent use and administration of the system security features. The following documents are available for
download from the Trend Micro Online Help Center: https://docs.trendmicro.com/en-us/tippingpoint/threat-
protection-system.aspx.
 Trend Micro TippingPoint Threat Protection System Hardware Specification and Installation Guide,
September 2020
 Trend Micro TippingPoint Threat Protection System Command Line Interface Reference, November 2019
 Trend Micro TippingPoint Virtual Threat Protection System (vTPS) User Guide, June 2019
The following document is available on the TOE’s Product Compliant List web page on the NIAP web site:
 Trend Micro Common Criteria Evaluated Configuration Guide (CCECG) for TPS v5.3, 1 January 2022.
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3. Security Problem Definition
This security target includes by reference the Security Problem Definition (composed of organizational policies, threat
statements, and assumptions) from the [CPP_ND_V2.2E], excluding A.COMPONENTS_RUNNING, which is for
distributed TOEs only.
In general, the [CPP_ND_V2.2E] has presented a Security Problem Definition appropriate for network infrastructure
devices, and as such is applicable to the Trend Micro TPS TOE.
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4. Security Objectives
Like the Security Problem Definition, this security target includes by reference the Security Objectives from the
[CPP_ND_V2.2E], excluding OE.COMPONENTS_RUNNING (for distributed TOEs only). The [CPP_ND_V2.2E]
security objectives for the operational environment are reproduced below, since these objectives characterize technical
and procedural measures each consumer must implement in their operational environment.
In general, the [CPP_ND_V2.2E] has presented a Security Objectives statement appropriate for network infrastructure
devices, and as such is applicable to the Trend Micro TPS TOE.
4.1 Security Objectives for the Operational Environment
OE.PHYSICAL Physical security, commensurate with the value of the TOE and
the data it contains, is provided by the environment.
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.NO_THRU_TRAFFIC_PROTECTION The TOE does not provide any protection of traffic that
traverses it. It is assumed that protection of this traffic will be
covered by other security and assurance measures in the
operational environment.
OE.TRUSTED_ADMIN Security Administrators are trusted to follow and apply all
guidance documentation in a trusted manner.
OE.UPDATES The TOE firmware and software is updated by an administrator
on a regular basis in response to the release of product updates
due to known vulnerabilities.
OE.ADMIN_CREDENTIALS_SECURE The administrator’s credentials (private key) used to access the
TOE must be protected on any other platform on which they
reside.
OE.RESIDUAL_INFORMATION The Security Administrator ensures that there is no
unauthorized access possible for sensitive residual information
(e.g. cryptographic keys, keying material, PINs, passwords etc.)
on networking equipment when the equipment is discarded or
removed from its operational environment.
OE.VM_CONFIGURATION For vNDs, the Security Administrator ensures that the VS and
VMs are configured to
• reduce the attack surface of VMs as much as possible while
supporting ND functionality (e.g., remove unnecessary virtual
hardware, turn off unused inter-VM communications
mechanisms), and
• correctly implement ND functionality (e.g., ensure virtual
networking is properly configured to support network traffic,
management channels, and audit reporting).
The VS should be operated in a manner that reduces the
likelihood that vND operations are adversely affected by
virtualisation features such as cloning, save/restore,
suspend/resume, and live migration.
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If possible, the VS should be configured to make use of features
that leverage the VS’s privileged position to provide additional
security functionality. Such features could include malware
detection through VM introspection, measured VM boot, or
VM snapshot for forensic analysis.
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5. IT Security Requirements
This section defines the Security Functional Requirements (SFRs) and Security Assurance Requirements (SARs) that
serve to represent the security functional claims for the Target of Evaluation (TOE) and to scope the evaluation effort.
The SFRs have all been drawn from [CPP_ND_V2.2E], including the following optional and selection-based SFRs:
FAU_STG.1, FAU_STG_EXT.3/LocSpace, FCS_SSHC_EXT.1, FCS_SSHS_EXT.1, and FMT_MOF.1/Functions.
As a result, refinements and operations already performed in that PP are not identified (e.g., highlighted) here, rather
the requirements have been copied from that PP and any residual operations have been completed herein. Of particular
note, the [CPP_ND_V2.2E] made a number of refinements and completed some of the SFR operations defined in the
CC and that PP should be consulted to identify those changes if necessary. Text deleted from SFRs by a refinement
in [CPP_ND_V2.2E] is not reproduced in ST.
The SARs are the set of SARs specified in [CPP_ND_V2.2E].
5.1 Extended Requirements
All extended requirements in this ST have been drawn from the [CPP_ND_V2.2E]. The [CPP_ND_V2.2E] defines
the following extended SFRs and since they are not redefined in this ST, the [CPP_ND_V2.2E] should be consulted
for more information regarding those CC extensions.
 FAU_STG_EXT.1: External Audit Event Storage
 FAU_STG_EXT.3/LocSpace: Action in Case of Possible Audit Data Loss
 FCS_RBG_EXT.1: Random Bit Generation
 FCS_SSHC_EXT.1: SSH Client Protocol
 FCS_SSHS_EXT.1: SSH Server Protocol
 FIA_PMG_EXT.1: Password Management
 FIA_UIA_EXT.1: User Identification and Authentication
 FIA_UAU_EXT.2: Password-based Authentication Mechanism
 FPT_APW_EXT.1: Protection of Administrator Passwords
 FPT_SKP_EXT.1: Protection of TSF Data (for Reading of all Pre-shared, Symmetric and Private Keys)
 FPT_STM_EXT.1: Reliable Time Stamps
 FPT_TST_EXT.1: TSF Testing
 FPT_TUD_EXT.1: Extended: Trusted Update
 FTA_SSL_EXT.1: TSF-initiated Session Locking
5.2 TOE Security Functional Requirements
The following table identifies the SFRs that are satisfied by the Trend Micro TPS TOE.
Requirement Class Requirement Component
FAU: Security audit FAU_GEN.1: Audit Data Generation
FAU_GEN.2: User Identity Association
FAU_STG.1: Protected Audit Trail Storage
FAU_STG_EXT.1: Protected Audit Event Storage
FAU_STG_EXT.3/LocSpace: Action in Case of Possible Audit Data Loss
FCS: Cryptographic support FCS_CKM.1: Cryptographic Key Generation
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Requirement Class Requirement Component
FCS_CKM.2: Cryptographic Key Establishment
FCS_CKM.4: Cryptographic Key Destruction
FCS_COP.1/DataEncryption: Cryptographic Operation (AES Data Encryption/
Decryption)
FCS_COP.1/SigGen: Cryptographic Operation (Signature Generation and
Verification)
FCS_COP.1/Hash : Cryptographic Operation (Hash Algorithm)
FCS_COP.1/KeyedHash: Cryptographic Operation (Keyed Hash Algorithm)
FCS_RBG_EXT.1: Random Bit Generation
FCS_SSHC_EXT.1: SSH Client Protocol
FCS_SSHS_EXT.1: SSH Server Protocol
FIA: Identification and
authentication
FIA_AFL.1: Authentication Failure Management
FIA_PMG_EXT.1: Password Management
FIA_UIA_EXT.1: User Identification and Authentication
FIA_UAU_EXT.2: Password-based Authentication Mechanism
FIA_UAU.7: Protected Authentication Feedback
FMT: Security Management FMT_MOF.1/ManualUpdate: Management of Security Functions Behaviour
FMT_MOF.1/Functions: Management of Security Functions Behaviour
FMT_MTD.1/CoreData: Management of TSF Data
FMT_SMF.1: Specification of Management Functions
FMT_SMR.2: Restrictions on Security Roles
FPT: Protection of the TSF FPT_APW_EXT.1: Protection of Administrator Passwords
FPT_SKP_EXT.1: Protection of TSF Data (for reading of all pre-shared,
symmetric and private keys)
FPT_STM_EXT.1: Reliable Time Stamps
FPT_TUD_EXT.1: Trusted Update
FPT_TST_EXT.1: TSF Testing
FTA: TOE access FTA_SSL_EXT.1: TSF-initiated Session Locking
FTA_SSL.3: TSF-initiated Termination
FTA_SSL.4: User-initiated Termination
FTA_TAB.1: Default TOE Access Banners
FTP: Trusted path/channels FTP_ITC.1: Inter-TSF Trusted Channel
FTP_TRP.1/Admin: Trusted Path
Table 3 TOE Security Functional Components
5.2.1 Security audit (FAU)
5.2.1.1 Audit Data Generation (FAU_GEN.1)
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
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c) All administrative actions comprising:
 Administrative login and logout (name of user account shall be logged if individual
user accounts are required for Administrators).
 Changes to TSF data related to configuration changes (in addition to the information
that a change occurred it shall be logged what has been changed).
 Generating/import of, changing, or deleting of cryptographic keys (in addition to the
action itself a unique key name or key reference shall be logged).
 Resetting passwords (name of related user account shall be logged).
 [no other actions];
d) Specifically defined auditable events listed in Table 4.
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 cPP/ST, information specified in column three of Table 4.
Requirement Auditable Events Additional Audit Record Contents
FAU_GEN.1 None. None.
FAU_GEN.2 None. None.
FAU_STG.1 None. None.
FAU_STG_EXT.1 None. None.
FAU_STG_EXT.3/LocSpace Low storage space for audit events. None.
FCS_CKM.1 None. None.
FCS_CKM.2 None. None.
FCS_CKM.4 None. None.
FCS_COP.1/DataEncryption None. None.
FCS_COP.1/SigGen None. None.
FCS_COP.1/Hash None. None.
FCS_COP.1/KeyedHash None. None.
FCS_RBG_EXT.1 None. None.
FCS_SSHC_EXT.1 Failure to establish an SSH session Reason for failure
FCS_SSHS_EXT.1 Failure to establish an SSH session Reason for failure
FIA_AFL.1 Unsuccessful login attempts limit is met
or exceeded.
Origin of the attempt (e.g., IP
address).
FIA_PMG_EXT.1 None. None.
FIA_UIA_EXT.1 All use of identification and
authentication mechanism.
Origin of the attempt (e.g., IP
address).
FIA_UAU_EXT.2 All use of identification and
authentication mechanism.
Origin of the attempt (e.g., IP
address).
FIA_UAU.7 None. None
FMT_MOF.1/ManualUpdate Any attempt to initiate a manual update. None.
FMT_MOF.1/Functions None. None.
FMT_MTD.1/CoreData None. None.
FMT_SMF.1 All management activities of the TSF
data.
None.
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Requirement Auditable Events Additional Audit Record Contents
FMT_SMR.2 None. None.
FPT_APW_EXT.1 None. None.
FPT_SKP_EXT.1 None. None.
FPT_STM_EXT.1 Discontinuous changes to time - either
Administrator actuated or changed via
an automated process. (Note that no
continuous changes to time need to be
logged. See also application note on
FPT_STM_EXT.1)
For discontinuous changes to time:
The old and new values for the time.
Origin of the attempt to change time
for success and failure (e.g., IP
address).
FPT_TST_EXT.1 None. None.
FPT_TUD_EXT.1 Initiation of update; result of the update
attempt (success or failure)
None.
FTA_SSL_EXT.1 (if
“terminate the session” is
selected)
The termination of a local session by the
session locking mechanism.
None.
FTA_SSL.3 The termination of a remote session by
the session locking mechanism.
None.
FTA_SSL.4 The termination of an interactive
session.
None.
FTA_TAB.1 None. None.
FTP_ITC.1 Initiation of the trusted channel.
Termination of the trusted channel.
Failure of the trusted channel functions.
Identification of the initiator and
target of failed trusted channels
establishment attempt.
FTP_TRP.1/Admin Initiation of the trusted path.
Termination of the trusted path.
Failure of the trusted path functions
None.
Table 4 Auditable Events
5.2.1.2 User Identity Association (FAU_GEN.2)
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.
5.2.1.3 Protected Audit Trail Storage (FAU_STG.1)
FAU_STG.1.1 The TSF shall protect the stored audit records in the audit trail from unauthorised deletion.
FAU_STG.1.2 The TSF shall be able to prevent unauthorised modifications to the stored audit records in
the audit trail.
5.2.1.4 Action in Case of Possible Audit Data Loss (FAU_STG_EXT.3/LocSpace)
FAU_STG_EXT.3.1/LocSpace The TSF shall generate a warning to inform the Administrator before the audit
trail exceeds the local audit trail storage capacity.
5.2.1.5 Protected Audit Event Storage (FAU_STG_EXT.1)
FAU_STG_EXT.1.1 The TSF shall be able to transmit the generated audit data to an external IT entity using a
trusted channel according to FTP_ITC.1.
FAU_STG_EXT.1.2 The TSF shall be able to store generated audit data on the TOE itself. In addition [
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 The TOE shall consist of a single standalone component that stores audit data
locally.]
FAU_STG_EXT.1.3 The TSF shall [overwrite previous audit records according to the following rule: [the
oldest historical audit file is deleted, the current audit file is renamed as a historical audit
file, and a new current audit file is created]] when the local storage space for audit data
is full.
5.2.2 Cryptographic support (FCS)
5.2.2.1 Cryptographic Key Generation (FCS_CKM.1)
FCS_CKM.1.1 The TSF shall generate asymmetric cryptographic keys in accordance with a specified
cryptographic key generation algorithm: [
 RSA schemes using cryptographic key sizes of 2048-bit or greater that meet the
following: FIPS PUB 186-4, “Digital Signature Standard (DSS)”, Appendix
B.3;
 ECC schemes using “NIST curves” [P-256, P-384, P-521] that meet the
following: FIPS PUB 186-4, “Digital Signature Standard (DSS)”, Appendix
B.4;
 FFC Schemes using “safe-prime” groups that meet the following: ‘NIST
Special Publication 800-56A Revision 3, “Recommendation for Pair-Wise Key
Establishment Schemes Using Discrete Logarithm Cryptography” and [RFC
3526].
].
5.2.2.2 Cryptographic Key Establishment (FCS_CKM.2)
FCS_CKM.2.1 The TSF shall perform cryptographic key establishment in accordance with a specified
cryptographic key establishment method: [
 Elliptic curve-based key establishment schemes that meet the following: NIST
Special Publication 800-56A Revision 2, “Recommendation for Pair-Wise Key
Establishment Schemes Using Discrete Logarithm Cryptography”;
 FFC Schemes using “safe-prime” groups that meet the following: ‘NIST
Special Publication 800-56A Revision 3, “Recommendation for Pair-Wise Key
Establishment Schemes Using Discrete Logarithm Cryptography” and [groups
listed in RFC 3526]1
.
].
5.2.2.3 Cryptographic Key Destruction (FCS_CKM.4)
FCS_CKM.4.1 The TSF shall destroy cryptographic keys in accordance with a specified cryptographic
key destruction method [
 For plaintext keys in volatile storage, the destruction shall be executed by a
[single overwrite consisting of [zeroes]];
 For plaintext keys in non-volatile storage, the destruction shall be executed by
the invocation of an interface provided by a part of the TSF that [logically
addresses the storage location of the key and performs a [single] overwrite
consisting of [a new value of the key]]
]
that meets the following: No Standard.
1
Modified by TD0580
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5.2.2.4 Cryptographic Operation (AES Data Encryption/Decryption) (FCS_COP.1/Data Encryption)
FCS_COP.1.1/DataEncryption The TSF shall perform encryption/decryption in accordance with a specified
cryptographic algorithm [AES used in [CBC, GCM]] mode and cryptographic
key sizes [128 bits, 256 bits] that meet the following: [AES as specified in ISO
18033-3, [CBC as specified in ISO 10116, GCM as specified in ISO 19772]].
5.2.2.5 Cryptographic Operation (Signature Generation and Verification)
FCS_COP.1/SigGen
FCS_COP.1.1/SigGen The TSF shall perform cryptographic signature services (generation and verification) in
accordance with a specified cryptographic algorithm [
 RSA Digital Signature Algorithm and cryptographic key sizes (modulus) [2048
bits],
 Elliptic Curve Digital Signature Algorithm and cryptographic key sizes [256
bits, 384-bits, 521-bits]]
that meet the following: [
 For RSA schemes: FIPS PUB 186-4, “Digital Signature Standard (DSS)”,
Section 5.5, using PKCS #1 v2.1 Signature Schemes RSASSA-PSS and/or
RSASSA-PKCS1v1_5; ISO/IEC 9796-2, Digital signature scheme 2 or Digital
Signature scheme 3,
 For ECDSA schemes: FIPS PUB 186-4, “Digital Signature Standard (DSS)”,
Section 6 and Appendix D, Implementing “NIST curves” [selection: P-256, P-
384, P-521]; ISO/IEC 14888-3, Section 6.4
].
5.2.2.6 Cryptographic Operation (Hash Algorithm) (FCS_COP.1/Hash)
FCS_COP.1.1/Hash The TSF shall perform cryptographic hashing services in accordance with a specified
cryptographic algorithm [SHA-1, SHA-256, SHA-384, SHA-512] and message digest
sizes [160, 256, 384, 512] bits that meet the following: ISO/IEC 10118-3:2004].
5.2.2.7 Cryptographic Operation (Keyed Hash Algorithm) (FCS_COP.1/KeyedHash)
FCS_COP.1.1/KeyedHash The TSF shall perform keyed-hash message authentication in accordance with a
specified cryptographic algorithm [HMAC-SHA-1, HMAC-SHA-256, HMAC-
SHA-512, implicit] and cryptographic key sizes [160, 256, 512 bits] and message
digest sizes [160, 256, 512] bits that meet the following: [ISO/IEC 9797-2:2011,
Section 7 “MAC Algorithm 2”].
5.2.2.8 Random Bit Generation (FCS_RBG_EXT.1)
FCS_RBG_EXT.1.1 The TSF shall perform all deterministic random bit generation services in accordance with
ISO/IEC 18031:2011 using [CTR_DRBG (AES)].
FCS_RBG_EXT.1.2 The deterministic RBG shall be seeded by at least one entropy source that accumulates
entropy from [[two] platform-based noise sources] with a minimum of [256 bits] of
entropy at least equal to the greatest security strength, according to ISO/IEC 18031:2011
Table C.1 “Security Strength Table for Hash Functions”, of the keys and hashes that it will
generate.
5.2.2.9 SSH Client Protocol (FCS_SSHC_EXT.1)
FCS_SSHC_EXT.1.1 The TSF shall implement the SSH protocol that complies with RFC(s) 4251, 4252, 4253,
4254, [5647, 5656, 6668].
FCS_SSHC_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, [no other method].
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FCS_SSHC_EXT.1.3 The TSF shall ensure that, as described in RFC 4253, packets greater than [256K] bytes in
an SSH transport connection are dropped.
FCS_SSHC_EXT.1.4 The TSF shall ensure that the SSH transport implementation uses the following encryption
algorithms and rejects all other encryption algorithms: [aes128-cbc, aes256-cbc, aes128-
gcm@openssh.com, aes256-gcm@openssh.com].
FCS_SSHC_EXT.1.5 The TSF shall ensure that the SSH public-key based authentication implementation uses
[ssh-rsa, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521] as its public
key algorithm(s) and rejects all other public key algorithms.
FCS_SSHC_EXT.1.6 The TSF shall ensure that the SSH transport implementation uses [hmac-sha1, hmac-sha2-
256, hmac-sha2-512, implicit] as its data integrity MAC algorithm(s) and rejects all other
MAC algorithm(s).
FCS_SSHC_EXT.1.7 The TSF shall ensure that [diffie-hellman-group14-sha1, ecdh-sha2-nistp256] and
[ecdh-sha2-nistp384, ecdh-sha2-nistp521] are the only allowed key exchange methods
used for the SSH protocol.
FCS_SSHC_EXT.1.8 The TSF shall ensure that within SSH connections the same session keys are used for a
threshold of no longer than one hour, and each encryption key is used to protect no more
than one gigabyte of data. After any of the thresholds are reached, a rekey needs to be
performed.
FCS_SSHC_EXT.1.9 The TSF shall ensure that the SSH client authenticates the identity of the SSH server using
a local database associating each host name with its corresponding public key and [no other
methods] as described in RFC 4251 section 4.1.
5.2.2.10 SSH Server Protocol (FCS_SSHS_EXT.1)
FCS_SSHS_EXT.1.1 The TSF shall implement the SSH protocol in accordance with: RFCs 4251, 4252, 4253,
4254, [5647, 5656, 6668, 8268].
FCS_SSHS_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_SSHS_EXT.1.3 The TSF shall ensure that, as described in RFC 4253, packets greater than [256K] bytes
in an SSH transport connection are dropped.
FCS_SSHS_EXT.1.4 The TSF shall ensure that the SSH transport implementation uses the following encryption
algorithms and rejects all other encryption algorithms: [aes128-cbc, aes256-cbc, aes128-
gcm@openssh.com, aes256-gcm@openssh.com].
FCS_SSHS_EXT.1.5 The TSF shall ensure that the SSH public-key based authentication implementation uses
[ssh-rsa, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521] as its public
key algorithm(s) and rejects all other public key algorithms.
FCS_SSHS_EXT.1.6 The TSF shall ensure that the SSH transport implementation uses [hmac-sha1, hmac-sha2-
256, hmac-sha2-512, AEAD_AES_128_GCM, AEAD_AES_256_GCM] as its data
integrity MAC algorithm(s) and rejects all other MAC algorithm(s).
FCS_SSHS_EXT.1.7 The TSF shall ensure that [diffie-hellman-group14-sha1, diffie-hellman-group15-
sha512, diffie-hellman-group16-sha512] are the only allowed key exchange methods
used for the SSH protocol.
FCS_SSHS_EXT.1.8 The TSF shall ensure that within SSH connections the same session keys are used for a
threshold of no longer than one hour, and each encryption key is used to protect no more
than one gigabyte of data. After any of the thresholds are reached, a rekey needs to be
performed.
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5.2.3 Identification and authentication (FIA)
5.2.3.1 Authentication Failure Management (FIA_AFL.1)
FIA_AFL.1.1 The TSF shall detect when an Administrator configurable positive integer within [1 to 10]
unsuccessful authentication attempts occur related to Administrators attempting to
authenticate remotely using a password.
FIA_AFL.1.2 When the defined number of unsuccessful authentication attempts has been met, the TSF
shall [prevent the offending remote Administrator from successfully authenticating until
an Administrator defined time period has elapsed].
5.2.3.2 Password Management (FIA_PMG_EXT.1)
FIA_PMG_EXT.1.1 The TSF shall provide the following password management capabilities for administrative
passwords:
a) Passwords shall be able to be composed of any combination of upper and lower case
letters, numbers, and the following special characters: [“!”, “@”, “#”, “$”, “%”, “^”,
“&”, “*”, “(“, “)”, [“,”, “.”, “/”, “<”, “>”, “?”]];
b) Minimum password length shall be configurable to between [1] and [15] characters.
Application Note: The minimum password length can be configured to “1”, “8”, or “15” only.
5.2.3.3 Protected Authentication Feedback (FIA_UAU.7)
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.
5.2.3.4 Password-based Authentication Mechanism (FIA_UAU_EXT.2)
FIA_UAU_EXT.2.1 The TSF shall provide a local [password-based, SSH public key-based] authentication
mechanism to perform local administrative user authentication.
5.2.3.5 User Identification and Authentication (FIA_UIA_EXT.1)
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;
 [[send Echo Reply in response to Echo Request ICMP messages received at the
Management interface]].
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.
5.2.4 Security management (FMT)
5.2.4.1 Management of Functions in TSF (FMT_MOF.1/ManualUpdate)
FMT_MOF.1.1/ManualUpdate The TSF shall restrict the ability to enable the functions to perform manual
updates to Security Administrators.
5.2.4.2 Management of Security Functions Behaviour (FMT_MOF.1/Functions)
FMT_MOF.1.1/Functions The TSF shall restrict the ability to [determine the behaviour of; modify the
behaviour of] the functions [transmission of audit data to an external IT entity]
to Security Administrators.
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5.2.4.3 Management of TSF Data (FMT_MTD.1/CoreData)
FMT_MTD.1.1/CoreData The TSF shall restrict the ability to manage the TSF data to Security
Administrators.
5.2.4.4 Specification of Management Functions (FMT_SMF.1)
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 configure the access banner;
 Ability to configure the session inactivity time before session termination or
locking;
 Ability to update the TOE, and to verify the updates using [digital signature]
capability prior to installing those updates;
 Ability to configure the authentication failure parameters for FIA_AFL.1;
[
o Ability to configure audit behaviour (e.g. changes to storage locations for
audit; changes to behaviour when local audit storage space is full);
o Ability to configure the cryptographic functionality;
o Ability to set the time which is used for time-stamps;
].
5.2.4.5 Restrictions on Security Roles (FMT_SMR.2)
FMT_SMR.2.1 The TSF shall maintain the roles:
 Security 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
 The Security Administrator role shall be able to administer the TOE locally;
 The Security Administrator role shall be able to administer the TOE remotely
are satisfied.
5.2.5 Protection of the TSF (FPT)
5.2.5.1 Protection of Administrator Passwords (FPT_APW_EXT.1)
FPT_APW_EXT.1.1 The TSF shall store administrative passwords in non-plaintext form.
FPT_APW_EXT.1.2 The TSF shall prevent the reading of plaintext administrative passwords.
5.2.5.2 Protection of TSF Data (for Reading of all Pre-shared, Symmetric and Private Keys)
(FPT_SKP_EXT.1)
FPT_SKP_EXT.1.1 The TSF shall prevent reading of all pre-shared keys, symmetric key, and private keys.
5.2.5.3 Reliable Time Stamps (FPT_STM_EXT.1)
FPT_STM_EXT.1.1 The TSF shall be able to provide reliable time stamps for its own use.
FPT_STM_EXT.1.2 The TSF shall [allow the Security Administrator to set the time].
5.2.5.4 TSF Testing (FPT_TST_EXT.1)
FPT_TST_EXT.1.1 The TSF shall run a suite of the following self-tests [during initial start-up (on power on)]
to demonstrate the correct operation of the TSF: [
 software module integrity tests
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 cryptographic known answer tests
].
5.2.5.5 Trusted Update (FPT_TUD_EXT.1)
FPT_TUD_EXT.1.1 The TSF shall provide Security Administrators the ability to query the currently executing
version of the TOE firmware/software and [no other TOE firmware/software version].
FPT_TUD_EXT.1.2 The TSF shall provide Security Administrators the ability to manually initiate updates to
TOE firmware/software and [no other update mechanism].
FPT_TUD_EXT.1.3 The TSF shall provide means to authenticate firmware/software updates to the TOE using
a [digital signature] prior to installing those updates.
5.2.6 TOE access (FTA)
5.2.6.1 TSF-initiated Termination (FTA_SSL.3)
FTA_SSL.3.1 The TSF shall terminate a remote interactive session after a Security Administrator-
configurable time interval of session inactivity.
5.2.6.2 User-initiated Termination (FTA_SSL.4)
FTA_SSL.4.1 The TSF shall allow Administrator-initiated termination of the Administrator’s own
interactive session.
5.2.6.3 TSF-initiated Session Locking (FTA_SSL_EXT.1)
FTA_SSL_EXT.1.1 The TSF shall, for local interactive sessions, [terminate the session] after a Security
Administrator-specified time period of inactivity.
5.2.6.4 Default TOE Access Banners (FTA_TAB.1)
FTA_TAB.1.1 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.
5.2.7 Trusted path/channels (FTP)
5.2.7.1 Inter-TSF Trusted Channel (FTP_ITC.1)
FTP_ITC.1.1 The TSF shall be capable of using [SSH] 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].
5.2.7.2 Trusted Path (FTP_TRP.1/Admin)
FTP_TRP.1.1/Admin The TSF shall be capable of using [SSH] to provide a communication path between itself
and authorized 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 provides detection of modification of the channel
data.
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FTP_TRP.1.2/Admin The TSF shall permit remote Administrators to initiate communication via the trusted path.
FTP_TRP.1.3/Admin The TSF shall require the use of the trusted path for initial Administrator authentication
and all remote administrative actions.
5.3 TOE Security Assurance Requirements
The security assurance requirements for the TOE are included by reference from the [CPP_ND_V2.2E].
Requirement Class Requirement Component
ASE: Security Target ASE_CCL.1: Conformance claims
ASE_ECD.1: Extended components definition
ASE_INT.1: ST introduction
ASE_OBJ.1: Security objectives for the operational environment
ASE_REQ.1: Stated security requirements
ASE_SPD.1: Security Problem Definition
ASE_TSS.1: TOE summary specification
ADV: Development ADV_FSP.1 Basic functional specification
AGD: Guidance documents AGD_OPE.1: Operational user guidance
AGD_PRE.1: Preparative procedures
ALC: Life-cycle support ALC_CMC.1 Labelling of the TOE
ALC_CMS.1 TOE CM coverage
ATE: Tests ATE_IND.1 Independent testing - conformance
AVA: Vulnerability assessment AVA_VAN.1 Vulnerability survey
Table 5 Security Assurance Components
Consequently, the assurance activities specified in [CPP_ND_V2.2E] apply to the TOE evaluation.
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6. TOE Summary Specification
This chapter describes the security functions:
 Security audit
 Cryptographic support
 Identification and authentication
 Security management
 Protection of the TSF
 TOE access
 Trusted path/channels
6.1 Security Audit
The TOE is a single standalone component that generates security relevant audit records including administrative
activity. The audit records are stored locally on the TOE, protected from unauthorized modification and deletion and
can be sent to a remote syslog server for storage. The connection for transmission of audit records uses SSH.
6.1.1 FAU_GEN.1: Audit Data Generation
The TOE is able to generate audit records for security relevant events as they occur. The events that can cause an audit
record to be logged include: starting and stopping the audit function; all attempts to initiate a secure communication
channel; and any use of an administrator action via the CLI comprising:
 Administrative login and logout (including the name of the user account).
 Changes to TSF data related to configuration changes (in addition to the information that a change occurred
it shall be logged what has been changed).
 Generating/import of, changing, or deleting of cryptographic keys (in addition to the action itself, when a
key is changed, it is uniquely identified in the audit log by being referenced as an SSH key and by identifying
the username that the key is associated with).
 Resetting passwords (name of related user account is logged).
 Attempts to initiate a TOE update.
 Modification of the behaviour of the transmission of audit data to an external IT entity.
Additionally, the TOE generates an audit record warning that is written to the audit trail when the space allocated for
storage of audit records exceeds 75% of capacity. This is default behavior and is not configurable.
The audit records include the following fields:
 Log ID - Displays the system-assigned log ID number.
 Log Entry Time - Displays the time the log was entered in the format YYYY-MM-DD HH:MM:SS.
 Device Name - The device name on which the session was logged.
 User - Displays the login name of the user who performed the audited action. The user listed for an event can
include SYS and CLI.
 Access - Displays the access level of the user performing the action. This field is only present in Audit Log
type.
 IP Address - Displays the IP address from which the user performed the action.
 Interface - Displays the interface with which the user logged in: CLI for the command line interface. For
system-initiated actions, SYS displays in this field.
 Access - Displays the access level of the user performing the action (from 0 (no administrative permissions
to 8 (super user)). In particular, the following values relevant to the TOE’s evaluated configuration are
defined for this field as follows:
o 0 NORMAL_ACCESS (no administrative permissions)
o 1 OPERATOR_ACCESS
o 4 ADMINISTRATOR_ACCESS
o 8 SUPER_USER_ACCESS
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 Result - Displays the action performed or the result of a LOGIN or LOGOUT attempt.
 Action/Message – Text of the log entry identifying the action performed as a result. For example, Log Files
Reset.
Table 4 corresponds to the audit events specified in Table 2 of the [CPP_ND_V2.2E] and includes the audit events
specified in the [CPP_ND_V2.2E] for optional and selected SFRs as selected in this ST.
6.1.2 FAU_GEN.2: User Identity Association
For audit events resulting from actions of identified users, the TOE associates each auditable event with the identity
of the user that caused the event. Specifically, user identity is captured by the ‘User’ and ‘IP Address’ fields in the
audit records.
6.1.3 FAU_STG.1: Protected Audit Trail Storage
The TOE includes an internal log implementation that can be used to store audit records locally on the TOE. The local
audit logs are stored on the TOE hard drive in either the ‘Audit’ log or the ‘System’ log. The System log records
information about the software processes that control the device, including startup and shutdown of the TOE events.
All other required audit events as identified in Table 4 are stored in the Audit log.
Each TPS system including vTPS systems allocate approximately one eighth of the system’s internal disk space for
the audit log file. Systems that support less than 5Gbps inspection throughput have 8GB internal disk space while
systems that support 5Gbps and above inspection throughput have 32GB internal disk space. This implies
approximately 1GB audit log file disk space on TPS systems with less than 5Gbps and approximately 4GB on TPS
systems greater than 5Gbps.
The enforced limits on the size of the audit data logs are specified as a percentage of internal log disk space using the
log-file-size CLI setting. The maximum amount of audit data that are stored locally in each log cannot exceed
this percentage and the combined percentage configured for the logs must equal 100%.
The audit records on the TOE are protected by database access control. There are no interfaces to modify or delete
individual audit records. Only Super Users can configure the log sizes and clear the log files. The command: clear
log-file deletes the locally stored Audit log. There are no interfaces to modify stored audit data.
6.1.4 FAU_STG_EXT.1: Protected Audit Event Storage
The TOE is capable of locally storing audit records and can be configured to send audit records to an external syslog
server using SSH. When configured to send audit records to a syslog server, audit records are also written to the
external syslog as they are written locally to the TOE audit log (in real-time).
Each TPS system including vTPS systems allocate approximately one eighth of the system’s internal disk space for
the audit log file. Systems that support less than 5Gbps inspection throughput have 8GB internal disk space while
systems that support 5Gbps and above inspection throughput have 32GB internal disk space. This implies
approximately 1GB audit log file disk space on TPS systems with less than 5Gbps and approximately 4GB on TPS
systems greater than 5Gbps.
System disk space is monitored and once the available storage for audit trail exceeds 75% full an alert is generated.
When audit storage space is exhausted, the TOE overwrites previous audit records by deleting the oldest historical log
file, renaming the current log file to be a historical file, and creating a new current log file. There are 5 files by default
for log rollover functionality (ex: audit.log -- current, audit.log.1..audit.log.4 -- rotated ones). Each file is allocated
20% of the total space allocated for that log. For example when the audit.log reaches its capacity (20% of audit log
space) it is renamed to audit.log.1 and the new audit entries are written to audit.log. When audit.log reaches its capacity
again, audit.log.1-->audit.log.2, audit.log-->audit.log.1 and new entries are written to audit.log. If all five files become
filled (100% audit log space used) then the oldest file gets deleted.
6.1.5 FAU_STG_EXT.3/LocSpace: Action in Case of Possible Audit Data
Loss
When the available storage for audit trail exceeds 75% full, the TOE generates an alert and writes it to the system log.
This is default behavior and is not configurable.
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6.2 Cryptographic Support
The TOE includes OpenSSL1.0.2l-fips wrapped with TippingPoint Crypto Core OpenSSL 2.0.13 library which
provides cryptographic algorithms and services. The following functions have been certified in accordance with the
identified standards. Note that two sets of algorithm certificates were awarded because the 1100TX and 5500TX were
tested separately after their release.
Functions Standards Certificates
FCS_CKM.1 Cryptographic Key Generation
 RSA (2048 bits) FIPS PUB 186-4, “Digital Signature
Standard (DSS)”, Appendix B.3
RSA # A2221
 ECDSA (P-256, P-384, P-521
curves)
FIPS PUB 186-4, “Digital Signature
Standard (DSS)”, Appendix B.4
ECDSA # A2221
 FFC Schemes using ‘safe-prime’
groups (2048-bits, 3072-bits, 4096-
bits)
NIST Special Publication 800-56A
Revision 3, Recommendation for
Pair-Wise Key Establishment
Schemes Using Discrete Logarithm
Cryptography” and RFC 3526
N/A
FCS_CKM.2 Cryptographic Key Establishment
 ECDSA (P-256, P-384, P-521
curves)
NIST Special Publication 800-56A
Revision 2, “Recommendation for
Pair-Wise Key Establishment
Schemes Using Discrete Logarithm
Cryptography”;
KAS # A2221
 FFC Schemes using ‘safe-prime’
groups (2048-bits, 3072-bits, 4096-
bits)
NIST Special Publication 800-56A
Revision 3, Recommendation for
Pair-Wise Key Establishment
Schemes Using Discrete Logarithm
Cryptography” and RFC 3526
N/A
FCS_COP.1/DataEncryption Cryptographic Operation (AES Data Encryption/Decryption)
 AES CBC (128 and 256 bits) ISO 18033-3, CBC as specified in
ISO 10116
AES #A2221
 AES GCM (128 and 256 bits) ISO 18033-3, GCM as specified in
ISO 19772
AES # A2221
FCS_COP.1/SigGen Cryptographic Operation (Signature Generation and Verification)
 RSA Digital Signature Algorithm
(rDSA) (modulus 2048)
FIPS PUB 186-4 “Digital Signature
Standard (DSS)”
RSA #A2221
 ECDSA NIST curves (P-256, P-
384, P-521)
FIPS PUB 186-4, “Digital Signature
Standard (DSS)”, Section 6 and
Appendix D, Implementing “NIST
curves”; ISO/IEC 14888-3, Section
6.4
ECDSA #A2221
FCS_COP.1/Hash Cryptographic Operation (Hash Algorithm)
 SHA-1 (digest size 160 bits)
 SHA-256 (digest size 256 bits)
 SHA-384 (digest size 384 bits)
 SHA-512 (digest size 512 bits)
ISO/IEC 10118-3:2004 # A2221
FCS_COP.1/KeyedHash: Cryptographic Operation (Keyed Hash Algorithm)
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Functions Standards Certificates
 HMAC-SHA-1 (key size 160 bits
and digest size 160 bits)
 HMAC-SHA-256 (key size 256
bits and digest size 256 bits)
 HMAC-SHA-512 (key size 512
bits and digest size 512 bits)
ISO/IEC 9797-2:2011, Section 7
“MAC Algorithm 2”
HMAC # A2221
FCS_RBG_EXT.1: Random Bit Generation
 CTR-DRBG(AES) with two
independent platform-based noise
source of 256 bits of non-
determinism
ISO/IEC 18031:2011 DRBG # A2221
Table 6 Cryptographic Functions
6.2.1 FCS_CKM.1: Cryptographic Key Generation
The TOE generates RSA asymmetric keys using cryptographic key sizes of 2048 bits according to FIPS PUB 186-4,
“Digital Signature Standard (DSS)”, Appendix B.3. The RSA asymmetric keys are used in support of SSH public key
authentication. See table above for Asymmetric key generation: RSA (2048-bit). The TOE generates asymmetric keys
using FFC schemes using “safe-prime” groups in support of SSH key establishment. Diffie-Hellman groups 14, 15,
and 16 are the supported key exchange methods and the key sizes are 2048 bits (Group 14), 3072 bits (Group 15), and
4096 bits (Group 16). The TOE also generates ECC asymmetric keys using NIST curves: P-256, P-384, P-521 in
support of SSH public key authentication and SSH session establishment. Both key generation methods are used in
communications with external syslog servers and with users accessing the SSH management interface.
6.2.2 FCS_CKM.2: Cryptographic Key Establishment
The TOE performs key establishment using Diffie-Hellman group 14 that implements 2048-bit MODP Group
according to RFC 3526, Section 3; Diffie-Hellman group 15 that implements 3072-bit MODP Group according to
RFC 3526, Section 3; Diffie-Hellman group 16 that implements 4096-bit MODP Group according to RFC 3526,
Section 3; and Elliptic Curve Diffie-Hellman key agreement using the P-256, P-384, or P-521 curve when an SSH
ciphersuite is negotiated. These key establishment methods are used during SSH session establishment with external
audit server and with users accessing the SSH management interface.
See Table 6 Cryptographic Functions above for detail.
6.2.3 FCS_CKM.4: Cryptographic Key Destruction
The TOE uses the following secret keys, private keys and CSPs.
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Key/CSP Name Algorithm/Key Size Description
RSA SGK RSA 2048 bits RSA signature generation key
RSA KDK RSA 2048 bits RSA key decryption key
ECC Keys ECC key pair (P-256, P-384, P-521) SSH session keys
SSH-RSA RSA 2048 bits SSH-RSA client keys
AES EDK AES 128, 256 bits AES encrypt/decrypt key
HMAC Key HMAC-SHA-1 (160 bits)
HMAC-SHA-256 (256 bits)
HMAC-SHA-512 (512 bits)
HMAC keyed hash key
CTR_DRBG Key AES 256 bits Internal CTR_DRBG key variable
Table 7 Secret keys, Private keys and CSPs
The TOE incorporates OpenSSL, which provides implementation of the cryptographic algorithms specified in Table
6. The TOE operates in FIPS mode and invokes the OpenSSL crypto module APIs to set up and maintain the full SSH
session, using the underlying cryptographic algorithms as identified in Table 6. Therefore, all key generation,
negotiation of session keys, and packet authentication is performed and managed by the crypto module.
User passwords and SSH-RSA client keys are stored in internal flash, encrypted using AES with a 256 bit key
encrypting key (KEK). When deleted, SSH_RSA client keys are overwritten with zeros. The KEK is stored on
Compact Flash (CF) and is itself encrypted using AES with a 256 bit Master Key. For TPS appliances, the Master
Key exists in hardware circuitry within the TOE. It is generated during manufacturing and is unique to each appliance.
For the vTPS, the Master Key is generated during software installation and stored on a system memory file. The vTPS
implements multi-layer software obfuscation techniques (including masking and key wrapping) to protect the Master
Key. These techniques protect the Master Key and associated authorization factors from unauthorized access. Anyone
who has the copy of software or access to a running copy of software will not be able to access the plaintext Master
Key by visually inspecting the software image, reverse engineering the software, or inspecting a memory footprint of
a running software image. The Master Key and associated authorization factors are destroyed when the vTPS is factory
reset (by execution of the debug factory-reset CLI command, or by deleting and reinstalling the VM). When this
occurs, a new Master Key and authorization factors are generated, overwriting the previous values.
All remaining keys (see Table 7 above) are plaintext stored in RAM, only during the lifetime of an API call. They are
destroyed immediately after use, by overwriting the memory once with zeroes.
6.2.4 FCS_COP.1/DataEncryption Cryptographic Operation (AES Data Encryption/Decryption)
The TOE performs 128/256-bit AES encryption/decryption as specified in ISO 18033-3, CBC mode as specified in
ISO 10116 and GCM mode as specified in ISO 19772.
6.2.5 FCS_COP.1/SigGen Cryptographic Operation (Signature Generation and Verification)
The TOE will provide cryptographic signature services using RSA Digital Signature Algorithm with key size of 2048
bits that meets the FIPS 186-4 Digital Signature Standard. The TOE’s SSH implementation supports the following
public key algorithms for public key-based authentication: ecdsa-sha2-nistp256; ecdsa-sha2-nistp384; and ecdsa-
sha2-nistp521 meeting the FIPS PUB 186-4, “Digital Signature Standard (DSS)”, Section 6 and ISO/IEC 14888-3,
Section 6.4 standard.
6.2.6 FCS_COP.1/Hash Cryptographic Operation (Hash Algorithm)
The TOE performs SHA-1, SHA-256, SHA-384, SHA-512 cryptographic hashing services in accordance with
ISO/IEC 10118-3:2004. The SHA hash algorithm is used as part of HMAC, but is also used as part of RSA digital
signature creation and verification. SHA-256, SHA-384, and SHA-512 also support ECDSA signature generation and
verification.
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6.2.7 FCS_COP.1/KeyedHash: Cryptographic Operation (Keyed Hash
Algorithm)
The TOE performs keyed-hash message authentication that meets the following: ISO/IEC 9797-2:2011, Section 7
“MAC Algorithm 2. The key length, hash function used, block size, and output MAC lengths are identified in the
table below.
Algorithm Key Size Block Size Message Digest Size
SHA-1 160 512 160
SHA-256 256 512 256
SHA-512 512 1024 512
Table 8 HMAC Properties
Keyed-hash message authentication services HMAC-SHA-1, HMAC-SHA-256, and HMAC-SHA-512 are supported
for SSH. SSH also uses implicit message authentication when the encryption algorithm is AES-GCM.
6.2.8 FCS_RBG_EXT.1: Random Bit Generation
The TOE uses a software-based deterministic random bit generator that complies with ISO/IEC 18031:2011, using
CTR_DRBG (AES). The TOE seeds the DRBG with 256 bits of entropy. All platforms use entropy provided by the
Linux kernel, including device, input, interrupt, disk randomness, and the RDRAND instruction.
6.2.9 FCS_SSHC_EXT.1 – SSH Client Protocol / FCS_SSHS_EXT.1 –
SSH Server Protocol
The TOE acts as an SSH client for secure communications with an external audit server. The TOE acts as an SSH
Server for secure communications with remote administrators. The TOE implements the SSHv2 protocol and complies
with RFCs 4251, 4252, 4253, 4254, 5647, 5656, and 6668. The TOE’s server implementation also implements RFC
8268.
Both of the TOE’s client and server implementations of SSH support the public-key-based authentication method as
described in RFC 4252. The TOE’s SSH server implementation also supports password-based authentication as
described in RFC 4252. The TOE drops packets greater than 256K bytes in an SSH transport connection as described
in RFC 4253.
As SSH packets are being received, the TOE uses a buffer to build all packet information. Once complete, the packet
is checked to ensure it can be appropriately decrypted. However, if it is not complete when the buffer becomes full
(256K bytes) the packet will be dropped.
The TOE’s SSH transport implementation uses:
 aes128-cbc, aes256-cbc, aes128-gcm@openssh.com, aes256-gcm@openssh.com encryption algorithms
 ssh-rsa, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384,and ecdsa-sha2-nistp521 as its public key algorithms; and
 hmac-sha1, hmac-sha2-256, hmac-sha2-512 (implicit for aes*-gcm@openssh.com) as its MAC algorithms.
The SSH algorithms are enabled by default. The TOE rejects any encryption, public key and MAC algorithms not
listed above. SSH ciphers can be toggled using the command: debug ssh ciphers CIPHER enable/disable. PK and
MAC algorithms can be changed by modifying the sshd config file as root.
The TOE’s SSH client uses diffie-hellman-group14-sha1, ecdh-sha2-nistp256, ecdh-sha2-nistp384, and ecdh-sha2-
nistp521 as its key exchange methods. The TOE’s SSH server uses diffie-hellman-group14-sha1, diffie-hellman-
group15-sha512, and diffie-hellman-group16-sha512 as its key exchange methods. The TOE ensures that the SSH
connection is rekeyed when a threshold of either one hour has been reached, or when one gigabyte of data has been
transmitted. Both thresholds are checked by the TOE and rekeying is performed upon reaching the threshold that is
hit first.
The TOE requires users to be identified and authenticated before they can access any of the TOE functions.
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6.3 Identification and Authentication
The TOE provides identification and authentication and password management functions.
6.3.1 FIA_AFL.1 Authentication Failure Management
The TOE can detect when an Administrator (Super User and Admin) configurable number (from 1 to 10) of failed
remote authentication attempts has been reached. When the defined number of unsuccessful authentication attempts
has been reached, the remote administrator accessing the TOE via SSH is locked out for an administrator (Super User
and Admin) configurable period of time (1-1440 minutes). Authentication failures by remote Administrators cannot
lead to a situation where no Administrator access is available to the TOE. If remote administrators are locked out,
administrator access is still available via local console. This prevents any condition where no administrator access is
available.
6.3.2 FIA_PMG_EXT.1: Password Management
The TOE can be composed of passwords from any combination of upper and lower case letters, numbers, and the
following special characters: “!”, “@”, “#”, “$”, “%”, “^”, “&”, “*”, “(“, “)”, “,”, “.”, “/”, “<”, “>”, “?”. Single and
double quotes, spaces or back slashes are not allowed. The minimum password length is administrator configurable
to 1, 8 or 15 characters, depending on Password Security Level.
The TOE offers configurable global authentication settings that apply to all users. The TOE offers pre-defined
Password Security Levels of None, Low, Medium and High. The default value is Medium. Each level adopts the
requirements of the preceding level and adds additional requirements for the user name and password.
A Password Security Level of None does not contain any restrictions other than User names cannot contain spaces.
The Password Security Level of Low requires User names to be at least six characters in length; a new password must
be different than the current password, and passwords must be at least eight characters in length. A Password Security
Level of Medium specifies the following additional password complexity requirements:
 Contains at least two alphabetic characters,
 Contains at least one numeric character, and
 Contains at least one non-alphanumeric character.
A Password Security Level of High requires the passwords to be at least 15 characters and meet the following
additional password complexity requirements:
 Contains at least one uppercase character,
 Contains at least one lowercase character, and
 At least half the characters cannot occupy the same positions as the current password.
Based on the configured password security level, the only security-relevant condition is the enforced length configured
by level.
6.3.3 FIA_UAU.7: Protected Authentication Feedback
When logging in, the TOE does 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.
6.3.4 FIA_UIA_EXT.1: User Identification and Authentication,
FIA_UAU_EXT.2: Password-based Authentication Mechanism
Administrators manage the TOE remotely using an SSH connection to the Ethernet Management port on the TOE
appliance or locally through the console interface or direct connection to the Ethernet Management port. Each method
provides access to the CLI after an administrator successfully logs in. Prior to administrative login, the Management
interface will respond to ICMP requests to confirm connectivity (for remote administrative connections) and displays
a warning banner for both local and remote connections. No other TSF-mediated actions are permitted on behalf of
an administrative user until the user is successfully authenticated.
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In order to log in, the user must provide an identity and also authentication data that matches an identity configured
on the TOE. Users are defined locally within the TOE with a user identity, password, and user role. Administrators
accessing the Ethernet Management port can be defined with an SSH public key for public key-based authentication
for SSH connections rather than a password. Users are authenticated directly by the TOE. Any resulting session is
dependent upon successful authentication and established sessions are associated with the role(s) (see Section 6.4)
assigned to the user.
6.4 Security Management
The TOE provides a CLI to access the security management functions. Security management commands are limited
to administrators and are available only after they have provided acceptable user identification and authentication data
to the TOE. The TOE controls user access to the TOE and resources based on user role. Users are given permission
to access a set of commands and resources based on their user role.
6.4.1 FMT_MOF.1/ManualUpdate: Management of Security Functions Behaviour Requests
The initiation of manual TOE updates is restricted to the Admin and Super User roles.
6.4.2 FMT_MOF.1/Functions: Management of Security Functions Behaviour
Users with the Super User, or Admin roles can configure the audit data to be transmitted to a remote syslog server.
6.4.3 FMT_MTD.1/CoreData: Management of TSF Data
The ability to manage the TSF data is restricted to the Administrators. No administrative functions are accessible prior
to administrator log-in. The authorized administrator must have the appropriate permissions as defined by the role to
access the TSF data.
6.4.4 FMT_SMF.1: Specification of Management Functions
All administrative functionality is available from the CLI (locally or remote).
The TOE provides the following management functions:
 Configure the access banner;
 Configure the cryptographic functionality (cryptographic ciphers used in SSH sessions);
 Set the time which is used for time-stamps;
 Update the TOE, and to verify the updates using the digital signature capability prior to installing those
updates;
 Configure the authentication failure parameters for FIA_AFL.1;
 Configure the session inactivity time before session termination; and
 Configure audit behaviour (send audit records to a remote syslog server).
6.4.5 FMT_SMR.2: Restrictions on Security Roles
The TOE includes pre-defined administrator roles and supports local and remote administration. The pre-defined roles
Super User, Admin, and Operator map to the Security Administrator role in the [CPP_ND_V2.2E]. The Operator role
only has the ability to view TSF data as specified by FMT_MTD.1/CoreData. The Super User, and Admin have full
access to manage the TOE as specified in FMT_SMF.1.
The TPS appliance has a serial console interface as well as an Ethernet interface dedicated to management. An
administrator can manage the TOE locally via the CLI through the console interface. In addition, the CLI can be
accessed remotely via SSH.
6.5 Protection of the TSF
The TOE ensures that sensitive information such as passwords and cryptographic keys are stored such that they are
not accessible even to an administrator. The TOE provides its own internal clock which it uses to provide a reliable
time source for audit records.
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The TOE includes functions to perform self-tests and mechanisms for the update of the TOE software/firmware and
verification of the cryptographic functions.
6.5.1 FPT_APW_EXT.1: Protection of Administrator Passwords
The TOE stores administrative passwords using 256-bit AES and prevents reading of plaintext passwords. The TOE
does not offer any functions that will disclose to any users a plaintext password. See Section 6.2 for more information
about stored passwords.
6.5.2 FPT_SKP_EXT.1: Protection of TSF Data (for Reading of all Pre-shared, Symmetric and
Private Keys)
The TOE does not offer any functions that will disclose to any users a stored cryptographic key. See Section 6.2 for
more information about stored keys.
6.5.3 FPT_STM_EXT.1: Reliable Time Stamps
The TOE is a hardware appliance or a virtual appliance image installed on a hardware appliance that includes a
hardware-based real-time clock to ensure that reliable time information is available. The TOE’s real-time clock is a
Complementary Metal-Oxide Semiconductor that stores the system time and date information. The TOE’s embedded
OS manages the clock and exposes administrator clock-related functions. The clock is used for audit record time
stamps, measuring session activity for termination, and for cryptographic operations based on time/date.
6.5.4 FPT_TST_EXT.1: TSF Testing
The TOE performs all self-tests (software module integrity tests and cryptographic known answer tests) on start-up.
The TOE process manager service is responsible for bringing up all relevant TOE processes. All binaries include an
embedded integrity checksum (md5sum) that the process manager verifies before starting the process. If a module
fails a software integrity test, the TOE reports status indicating which failure occurred and transitions to an error state,
in which the module ceases to continue processing.
The TOE includes the OpenSSL 2.0.13 FIPS wrapper which forces the execution of the self-tests and ensures the
correct operation of cryptographic functions. OpenSSL performs the following cryptographic self-tests during start-
up:
 Cryptographic known answer tests: for symmetric and one-way cryptographic operations, the TSF will
process known input data and compare it to the pre-computed output for each algorithm to ensure results
are consistent with known answers.
 Pairwise consistency tests: for public key cryptographic operations, the TSF will perform a cryptographic
operation followed by its reverse (e.g. encrypt/decrypt; sign/verify) to ensure that the result of the
calculation is the same as the initially-supplied value.
6.5.5 FPT_TUD_EXT.1: Trusted Update
The administrator uses the CLI to update the TOE, and to query the currently executing software version of the TOE.
The command version displays the current software version.
The administrator uses a Debug command (debug upgrade) to download a TOE update package directly from a
specified URL. The update package is published on Trend Micro support website. The vendor generates a digital
signature of the update package by first calculating the SHA-256 hash of the update package, then encrypting the
generated hash using its 2048-bit RSA private key. The TOE update package includes the digital signature and the
public key is included in the software image. The digital signature is verified by the TOE prior to the package being
installed. The process is as follows: the TOE calculates its own SHA-256 hash of the update package, then decrypts
the digital signature accompanying the update package using the RSA public key matching the vendor’s private key,
and comparing the hash it calculated with the decrypted hash value. If they are equal, the package is valid and has not
been modified. The digital signature is downloaded as part of the update package, and the TOE is pre-installed with
the public key. The TOE starts the update process once it verifies the signature/hash. A package with an invalid
signature will not be installed by the TOE.
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6.6 TOE Access
The TOE can be configured to display an informative banner when an administrator establishes an interactive session.
The TOE can also enforce an administrator-defined inactivity timeout value after which the inactive session (local or
remote) will be terminated. Finally, the TOE allows administrators to terminate their own session.
6.6.1 FTA_SSL.3: TSF-initiated Termination
The TOE can be configured by an administrator to set an interactive remote session timeout value (any integer value
greater than zero in minutes) for user sessions. The default timeout is 15 minutes. Note also that should a user have
their session terminated (e.g., due to inactivity), they are required to successfully authenticate, by reentering their
identity and authentication data, in order to establish a new session.
The TOE can be configured by an administrator to set an interactive session timeout value for remote user sessions.
The timeout value is in minutes and can be set to any integer value from 1 to 32000.
6.6.2 FTA_SSL.4: User-initiated Termination
Administrators can terminate their own interactive sessions by logging out at the console and SSH.
6.6.3 FTA_SSL_EXT.1: TSF-initiated Session Locking
The TOE can be configured by an administrator to set an interactive session timeout value for local user sessions. The
timeout value is in minutes and can be set to any integer value from 1 to 32000.
The TOE implements the session inactivity limit for local interactive sessions at the console. Such sessions will be
terminated when the inactivity period expires. Should a user have their session terminated (e.g., due to inactivity),
they are required to successfully authenticate, by reentering their identity and authentication data, in order to establish
a new session.
6.6.4 FTA_TAB.1: Default TOE Access Banners
The TOE supports an administrator-configurable TOE access banner that is displayed prior to a user completing the
login process at the CLI. The banner text is configured using the login-banner command and the same text is
displayed at both local and remote management connections (console, SSH).
6.7 Trusted Path/Channels
An authorized administrator can establish a secure remote connection with the TOE using SSH.
The TOE also uses SSH secure communications with an external log server to prevent unintended disclosure or
modification of audit records.
6.7.1 FTP_ITC.1: Inter-TSF Trusted Channel
The TOE can be configured to export audit records to an external audit server. The TOE uses SSH to protect
communications between itself and the audit server. SSH provides assured identification of its end points via host
name/public key association as per FCS_SSHC_EXT.1.9 and protection of the channel data from disclosure and
detection of modification of the channel data. The TOE initiates communication via the trusted channel for the audit
server.
The TOEs secure protocols are supported by FIPS Approved cryptographic mechanisms included in the TOE
implementation.
6.7.2 FTP_TRP.1/Admin: Trusted Path
The TOE protects interactive communication with administrators accessing the CLI using SSH, which provides
confidentiality of transmitted information and detects any loss of integrity. Remote administrators initiate
communication via the trusted path by using an SSH client to login.
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To successfully establish an interactive administrative session, the administrator must be able to provide acceptable
user credentials (e.g., user id and password), after which they will be able to access the CLI features. Remote
administrators may alternatively need to provide an SSH key for key-based authentication. The trusted path is used
for initial Administrator authentication and all subsequent administrative actions.
The secure protocols are supported by FIPS-approved cryptographic mechanisms included in the TOE
implementation.
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7. Protection Profile Claims
The ST claims exact conformance to the collaborative Protection Profile for Network Devices, Version 2.2e, 23-
March-2020, [CPP_ND_V2.2E] including the following optional and selection-based SFRs: FAU_STG.1,
FAU_STG_EXT.3/LocSpace, FCS_SSHC_EXT.1, FCS_SSHS_EXT.1, and FMT_MOF.1/Functions.
As explained in Sections 3 and 4, the Security Problem Definition and the Security Objectives of the
[CPP_ND_V2.2E] have been included by reference into this ST.
All Security Functional Requirements (SFRs) in this ST have been reproduced from the [CPP_ND_V2.2E] and
operations completed as appropriate.
8. Rationale
This ST includes by reference the [CPP_ND_V2.2E] Security Problem Definition, Security Objectives, and Security
Assurance Requirements. The ST makes no additions to the [CPP_ND_V2.2E] assumptions. [CPP_ND_V2.2E]
security functional requirements have been reproduced with the Protection Profile operations completed. Operations
on the security requirements follow [CPP_ND_V2.2E] application notes and evaluation activities. The security target
did not add or remove any mandatory security requirements. Consequently, [CPP_ND_V2.2E] rationale applies and
is complete.