JISEC-CC-CRP-C0768-01-2022
Certification Report
TOMITA Tatsuo, Chairman
Information-technology Promotion Agency, Japan
2-28-8 Honkomagome, Bunkyo-ku, Tokyo
IT Product (TOE)
Reception Date of Application
(Reception Number)
2022-05-16 (ITC-2817)
Certification Identification JISEC-C0768
Product Name
SHARP BP-70C65 / 70C55 / 70C45 / 70C36 / 70C31 /
60C45 / 60C36 / 60C31 fax-optional PS-standard model
with BP-FR12U; and BP-55C26 / 50C65 / 50C55 /
50C45 / 50C36 / 50C31 / 50C26 fax-optional PS-
optional model with BP-FR12U and MX-PK13
Version and Release Numbers 0220Q100
Product Manufacturer SHARP CORPORATION
Conformance of Functionality PP conformant functionality, CC Part 2 Extended
Protection Profile Conformance
Protection Profile for Hardcopy Devices 1.0
dated September 10, 2015
(Certification Identification: JISEC-C0553)
Name of IT Security Evaluation
Facility
Information Technology Security Center, Evaluation
Department
This is to report that the evaluation result for the above TOE has been certified as follows.
2022-11-25
YANO Tatsuro, Technical Manager
IT Security Technology Evaluation Department
IT Security Center
Evaluation Criteria, etc.: This TOE is evaluated in accordance with the following standards
prescribed in the "IT Security Evaluation and Certification
Scheme Document."
- Common Criteria for Information Technology Security Evaluation Version 3.1 Release 5
- Common Methodology for Information Technology Security Evaluation Version 3.1 Release 5
Evaluation Result: Pass
"SHARP BP-70C65 / 70C55 / 70C45 / 70C36 / 70C31 / 60C45 / 60C36 / 60C31 fax-optional
PS-standard model with BP-FR12U; and BP-55C26 / 50C65 / 50C55 / 50C45 / 50C36 / 50C31
/ 50C26 fax-optional PS-optional model with BP-FR12U and MX-PK13, Version 0220Q100"
JISEC-CC-CRP-C0768-01-2022
has been evaluated based on the standards required, in accordance with the provisions of
the "Requirements for IT Security Certification" by Information-technology Promotion
Agency, Japan, and has met the specified assurance requirements.
Notice:
This document is the English translation version of the Certification Report published
by the Certification Body of Japan Information Technology Security Evaluation and
Certification Scheme.
JISEC-CC-CRP-C0768-01-2022
Table of Contents
1 Executive Summary ................................................................................................................ 1
1.1 Product Overview............................................................................................................. 1
1.1.1 Protection Profile or Assurance Package................................................................. 1
1.1.2 TOE and Security Functionality.............................................................................. 1
1.1.2.1 Threats and Security Objectives....................................................................... 2
1.1.2.2 Configuration and Assumptions ....................................................................... 2
1.1.3 Disclaimers................................................................................................................ 2
1.2 Conduct of Evaluation...................................................................................................... 3
1.3 Certification...................................................................................................................... 3
2 Identification............................................................................................................................ 4
3 Security Policy ......................................................................................................................... 6
3.1 Users.................................................................................................................................. 6
3.2 Assets ................................................................................................................................ 6
3.3 Threats.............................................................................................................................. 7
3.4 Organizational Security Policies..................................................................................... 8
4 Assumptions and Clarification of Scope ................................................................................ 9
4.1 Usage Assumptions .......................................................................................................... 9
4.2 Environmental Assumptions ......................................................................................... 10
4.3 Clarification of Scope ......................................................................................................11
5 Architectural Information..................................................................................................... 12
5.1 TOE Boundary and Components .................................................................................. 12
5.2 IT Environment.............................................................................................................. 13
6 Documentation....................................................................................................................... 15
7 Evaluation conducted by Evaluation Facility and Results ................................................ 16
7.1 Evaluation Facility......................................................................................................... 16
7.2 Evaluation Approach...................................................................................................... 16
7.3 Overview of Evaluation Activity.................................................................................... 16
7.4 IT Product Testing.......................................................................................................... 17
7.4.1 Developer Testing.................................................................................................... 17
7.4.2 Evaluator Independent Testing ............................................................................. 17
7.4.3 Evaluator Penetration Testing............................................................................... 20
7.5 Evaluated Configuration ............................................................................................... 21
7.6 Evaluation Results......................................................................................................... 22
7.7 Evaluator Comments/Recommendations ..................................................................... 22
8 Certification ........................................................................................................................... 23
8.1 Certification Result ........................................................................................................ 23
8.2 Recommendations .......................................................................................................... 23
JISEC-CC-CRP-C0768-01-2022
9 Annexes .................................................................................................................................. 24
10 Security Target................................................................................................................... 24
11 Glossary .............................................................................................................................. 25
12 Bibliography ....................................................................................................................... 27
JISEC-CC-CRP-C0768-01-2022
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1 Executive Summary
This Certification Report describes the content of the certification result in relation to IT
Security Evaluation of "SHARP BP-70C65 / 70C55 / 70C45 / 70C36 / 70C31 / 60C45 /
60C36 / 60C31 fax-optional PS-standard model with BP-FR12U; and BP-55C26 / 50C65 /
50C55 / 50C45 / 50C36 / 50C31 / 50C26 fax-optional PS-optional model with BP-FR12U
and MX-PK13, Version 0220Q100" (hereinafter referred to as the "TOE") developed by
SHARP CORPORATION, and the evaluation of the TOE was completed on 2022-10-14 by
Information Technology Security Center Evaluation Department (hereinafter referred to
as the "Evaluation Facility"). It is intended to report to the sponsor, SHARP
CORPORATION, and provide security information to procurement entities and
consumers who are interested in the TOE.
Readers of the Certification Report are advised to read the Security Target (hereinafter
referred to as the "ST") described in Chapter 10. Especially, details of security functional
requirements, assurance requirements and rationale for sufficiency of these requirements
of the TOE are described in the ST.
This Certification Report assumes procurement entities who purchase the TOE to be
readers. Note that the Certification Report presents the certification result based on
assurance requirements to which the TOE conforms, and does not guarantee an
individual IT product itself.
1.1 Product Overview
An overview of the TOE functions and operational conditions is described as follows.
Refer to Chapter 2 and subsequent chapters for details.
1.1.1 Protection Profile or Assurance Package
The TOE conforms to the following Protection Profile [14][15] (hereinafter referred to as
the "Conformance PP").
Protection Profile for Hardcopy Devices 1.0 dated September 10, 2015
(Certification Identification: JISEC-C0553)
1.1.2 TOE and Security Functionality
This TOE is a digital multifunction device (hereinafter referred to as the "MFD")
equipped not only with copy, printer and scanner function, but also with a function to save
and retrieve documents (referred to as the "document filing function" in this TOE). This
TOE has no fax function.
JISEC-CC-CRP-C0768-01-2022
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The TOE provides security functions required by the Conformance PP to prevent the
document data processed by the MFD and the setting data etc. affecting security from
unauthorized disclosure and alteration.
For these security functions, the validity of the design policy and the accuracy of the
implementation were evaluated within the scope of the assurance requirements of the
Conformance PP.
Threats and assumptions assumed for the TOE are described in the following sections.
1.1.2.1 Threats and Security Objectives
The following threats are assumed for the TOE.
There are threats that user document data and data affecting security functions, which
are assets to be protected by the TOE, may be disclosed or altered by unauthorized
operation of the TOE or unauthorized access to the network to which the TOE is
connected.
There are also threats that security functions of the TOE may be compromised by the
failure of the TOE itself or installation of unauthorized software.
The TOE provides security functions required by the Conformance PP such as
identification and authentication, access control, encryption, and digital signature to
counter these threats.
1.1.2.2 Configuration and Assumptions
The TOE is assumed to be operated under the following configuration and assumptions.
It is assumed that the TOE is operated in the environment where unauthorized physical
access is restricted and it is connected to a LAN separated from the Internet.
The setting, administration and maintenance of the TOE must be performed in
accordance with the guidance documents by a trusted administrator. Users of the TOE
must have been trained in order to use the TOE securely.
1.1.3 Disclaimers
The following operation is not ensured by this evaluation:
- An environment different from that described in "4.2 Environmental
Assumptions"
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- TOE with settings different from those described in "7.5 Evaluated
Configuration"
1.2 Conduct of Evaluation
Under the IT Security Evaluation and Certification Scheme that the Certification Body
operates, the Evaluation Facility conducted IT security evaluation and completed in 2022-
10, based on functional requirements and assurance requirements of the TOE according
to the publicized documents "IT Security Evaluation and Certification Scheme
Document"[1], "Requirements for IT Security Certification"[2], and "Requirements for
Approval of IT Security Evaluation Facility"[3] provided by the Certification Body.
1.3 Certification
The Certification Body verified the Evaluation Technical Report [13] and the Observation
Reports prepared by the Evaluation Facility as well as evaluation documentation, and
confirmed that the TOE evaluation was conducted in accordance with the prescribed
procedure. The certification oversight reviews were also prepared for those concerns
found in the certification process. The Certification Body confirmed that all the concerns
were fully resolved, and that the TOE evaluation had been appropriately conducted in
accordance with the CC ([4][5][6] or [7][8][9]) and the CEM (either of [10][11]). The
Certification Body prepared this Certification Report based on the Evaluation Technical
Report and fully concluded certification activities.
JISEC-CC-CRP-C0768-01-2022
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2 Identification
The TOE is identified as follows:
TOE Name: SHARP BP-70C65 / 70C55 / 70C45 / 70C36 / 70C31 / 60C45 / 60C36
/ 60C31 fax-optional PS-standard model with BP-FR12U; and BP-
55C26 / 50C65 / 50C55 / 50C45 / 50C36 / 50C31 / 50C26 fax-
optional PS-optional model with BP-FR12U and MX-PK13
TOE Version: 0220Q100
Users can verify that a product is the TOE, which is evaluated and certified, by the
following means.
Users confirm the following information as described in the guidance document.
- Model number of Main unit
The model number of main unit displayed on the casing of the TOE shall
be one of those listed in "Model number of main unit" field of Table 2-1.
- Fax
"NONE" shall be displayed in the "FAX" field on the TOE operation panel.
- Postscript
The character string ("STANDARD" or "NONE") in the "Postscript " field
of Table 2-1 corresponding to the model number of main unit of the TOE
shall be displayed in the "PS" field on the TOE operation panel.
- Mandatory option
All strings in the "Mandatory option" field of Table 2-1 corresponding to
the model number of main unit of the TOE shall be displayed in the option
name on the TOE operation panel.
- Version
The TOE version indicated on the operation panel shall match the TOE
identification version.
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Table 2-1 TOE Components
Model number of main unit Postscript Mandatory option
BP-70C65
BP-70C55
BP-70C45
BP-70C36
BP-70C31
BP-60C45
BP-60C36
BP-60C31
STANDARD BP-FR12U
BP-55C26
BP-50C65
BP-50C55
BP-50C45
BP-50C36
BP-50C31
BP-50C26
NONE
BP-FR12U
MX-PK13
JISEC-CC-CRP-C0768-01-2022
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3 Security Policy
The TOE provides the basic functions of the MFD such as copy, printer, scanner, and
document filing. It has the functionality to store the user document data in the TOE and
to communicate with user terminals and various servers via a network. It has the
functionality to store the user document data in the TOE and to communicate with user
terminals and various servers via a network.
The TOE provides security functions that satisfy the requirements of the Conformance
PP, to protect the document data processed by the MFD and setting data etc. affecting
security.
As the background of the security functions provided by the TOE, user roles, assets,
threats, and organizational security policies assumed for the TOE are described in
following Section 3.1 to 3.4. Details of the security functions of the TOE are described in
Chapter 5.
3.1 Users
The user roles assumed for the TOE are shown in Table 3-1.
Table 3-1 User Roles
Designation Definition
Normal User A User who has been identified and authenticated and does not
have an administrative role
Administrator A User who has been identified and authenticated and has an
administrative role
3.2 Assets
The assets assumed to be protected by the TOE are shown in Table 3-2, Table 3-3 and
Table 3-4. There are two categories of the assets, User Data and TSF Data, as shown in
Table 3-2. Furthermore, User Data is classified as shown in Table 3-3 and TSF Data is as
shown in Table 3-4.
Table 3-2 Assets
Designation Asset category Definition
D.USER User Data Data created by and for Users that do not
affect the operation of the TSF
D.TSF TSF Data Data created by and for the TOE that might
affect the operation of the TSF
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Table 3-3 Assets (User Data)
Designation User Data Type Definition
D.USER.DOC User Document
Data
Information contained in a User’s Document,
in electronic or hardcopy form
D.USER.JOB User Job Data Information related to a User’s Document or
Document Processing Job
Table 3-4 Assets (TSF Data)
Designation TSF Data Type Definition
D.TSF.PROT Protected TSF
Data
TSF Data for which alteration by a User who
is neither the data owner nor in an
Administrator role might affect the security of
the TOE, but for which disclosure is
acceptable
D.TSF.CONF Confidential
TSF Data
TSF Data for which either disclosure or
alteration by a User who is neither the data
owner nor in an Administrator role might
affect the security of the TOE
3.3 Threats
The threats assumed for the TOE are shown in Table 3-5.
Table 3-5 Threats
Designation Definition
T.UNAUTHORIZED_ACCESS An attacker may access (read, modify, or delete)
User Document Data or change (modify or delete)
User Job Data in the TOE through one of the TOE’s
interfaces.
T.TSF_COMPROMISE An attacker may gain Unauthorized Access to TSF
Data in the TOE through one of the TOE’s
interfaces.
T.TSF_FAILURE A malfunction of the TSF may cause loss of security
if the TOE is permitted to operate.
T.UNAUTHORIZED_UPDATE An attacker may cause the installation of
unauthorized software on the TOE.
T.NET_COMPROMISE An attacker may access data in transit or otherwise
compromise the security of the TOE by monitoring
or manipulating network communication.
JISEC-CC-CRP-C0768-01-2022
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3.4 Organizational Security Policies
The organizational security policies required for the TOE are shown in Table 3-6.
Table 3-6 Organizational Security Policies
Designation Definition
P.AUTHORIZATION Users must be authorized before performing
Document Processing and administrative
functions.
P.AUDIT Security-relevant activities must be audited and
the log of such actions must be protected and
transmitted to an External IT Entity.
P.COMMS_PROTECTION The TOE must be able to identify itself to other
devices on the LAN.
P.STORAGE_ENCRYPTION If the TOE stores User Document Data or
Confidential TSF Data on Field-Replaceable
Nonvolatile Storage Devices, it will encrypt such
data on those devices.
P.KEY_MATERIAL Cleartext keys, submasks, random numbers, or
any other values that contribute to the creation of
encryption keys for Field-Replaceable Nonvolatile
Storage of User Document Data or Confidential
TSF Data must be protected from unauthorized
access and must not be stored on that storage
device.
JISEC-CC-CRP-C0768-01-2022
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4 Assumptions and Clarification of Scope
This chapter describes the assumptions and the operational environment to operate the
TOE as useful information for the assumed readers to determine whether to use the TOE.
4.1 Usage Assumptions
Table 4-1 shows assumptions to operate the TOE. The effective performances of the TOE
security functions are not assured unless these assumptions are satisfied.
Table 4-1 Assumptions
Designation Definition
A.PHYSICAL Physical security, commensurate with the value of the
TOE and the data it stores or processes, is assumed to be
provided by the environment.
A.NETWORK The Operational Environment is assumed to protect the
TOE from direct, public access to its LAN interface.
A.TRUSTED_ADMIN TOE Administrators are trusted to administer the TOE
according to site security policies.
A.TRAINED_USERS Authorized Users are trained to use the TOE according
to site security policies.
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4.2 Environmental Assumptions
Figure 4-1 shows the operational environment assumed for the TOE. The TOE is installed
in a general office and used in an environment connected to a LAN which is the internal
network of the organization. Users operate the control panel of the TOE or a client PC
connected to LAN to use the TOE.
Figure 4-1 Operational Environment of the TOE
The operational environment of the TOE consists of the following components.
(1) Client PC
It is a general PC used by users. The following software is required.
- OS: Windows 10
- Printer Driver:
SHARP <model number of main unit> PCL6 Driver
- Web browser: Microsoft Edge 101
(2) Audit Server
It is an audit server to store the audit log generated by the TOE. It must use
the syslog protocol and support TLS 1.2. Installation of this server is mandatory.
rsyslog 8.24.0 was used in this evaluation.
(3) Mail Server
A mail server is used to send user document data as an E-mail attachment
from the TOE. It must support TLS 1.2.
Postfix ver.2.10.1 was used in this evaluation.
External network (Internet)
Firewall
FTP server
Mail server
Audit server
Authentication
server
Internal network
(Local area network）
Client PC
TOE
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(4) FTP Server
A FTP server is used to send user document data from the TOE. It must
support TLS 1.2.
Microsoft Internet Information Services ver.10.0.19041.1586 that is standard
server for Windows 10 was used in this evaluation.
(5) Authentication Server
In the case of "external authentication method" shown in "Identification and
authentication function" in Section 5.1.1, an authentication server which
supports TLS 1.2 and of which authentication protocol is LDAP authentication
method is required.
openLDAP ver2.4.44 was used in this evaluation.
It should be noted that the reliability of the hardware and the software other than the
TOE shown in this configuration is outside the scope of this evaluation. Those are
assumed to be trustworthy.
4.3 Clarification of Scope
There are the following restrictions on the functions provided by the TOE or ensured by
this evaluation.
1) Servers and client PCs
Administrators are responsible for operating servers and client PCs cooperating with
the TOE securely.
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5 Architectural Information
This chapter explains the scope and the main components of the TOE.
5.1 TOE Boundary and Components
Figure 5-1 shows the composition of the TOE. In Figure 5-1, the TOE is the part described
as "TOE" in the figure and is the entire MFD with the necessary option.
Figure 5-1 TOE boundary
The functions provided by the TOE consist of basic functions of the MFD and security
functions. In Figure 5-1, the colored parts in the TOE are security functions, and the
other functions in the TOE are basic functions. The security functions of the TOE are
described below. For details on the basic MFD functions, see Chapter 11.
(1) Identification and authentication function
This function is a function to identify and authenticate users with their login
names and passwords when users use the TOE from the control panel of MFD,
Web browser of client PC, or Printer driver of client PC.
This function has the following functionality to reinforce the identification
and authentication.
- Restriction on the minimum password length.
- Account lockout after successive authentication failures.
- Termination of the session if there is no operation for a certain time after
the successful authentication.
Security
management
function
Access control
function
Self-testing
function
Audit
function
Software
verification function
Identification and authentication function
User data TSF data
Internal storage
Stored data encryption function
Printer function
Document filing function
Scanner function
Copy function
Basic
functions
Mail
server
FTP
server
Audit
server
Authentication
server
Client
PC
User
TOE
Operation
panel
Network protection function
JISEC-CC-CRP-C0768-01-2022
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(2) Access control function
This function is a function to control the access to the user data when users
operate the basic functions of the MFD on them.
The access control is performed based on the owner information of the user
data and on the user's identification information and role.
(3) Stored data encryption function
This function is a function to encrypt the data stored in the TOE. The
encryption of the stored data uses AES CBC mode with a 256-bit key.
Encryption keys are generated using a random bit generator with enough
entropy that is difficult to guess.
(4) Network protection function
This function is a function to protect communication data between the TOE
and IT devices using encryption communication protocol, TLS 1.2.
Encryption keys are generated using a random bit generator with enough
entropy that is difficult to guess.
(5) Security management function
This function is a function to restrict the setting, etc. of the security
functions to administrators.
However, general users can inquire about their login names and authority
groups, and change their passwords.
(6) Audit function
This function is a function to generate audit logs on audit events relevant to
the security functions and send them to an audit log server.
The audit data generated by the TOE is encrypted and stored in the TOE until
it is successfully transmitted to the audit server. In the TOE, it is possible to
store 40,000 audit data. The audit data generated newly in excess of 40,000 is
not stored but is discarded.
(7) Software verification function
This function is a function to verify the digital signature of new firmware
when the firmware is updated.
(8) Self-testing function
This function is a function to perform the entropy source health test of the
random number generator and the known answer test of the encryption
algorithm, and confirm that the firmware is not corrupted at start-up of the
TOE.
5.2 IT Environment
The TOE communicates with servers and client PCs via LAN.
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The function of the TOE described in "(4) Network protection function" works in
cooperation with those IT devices and uses the following protocols:
- Client PC (Web browser): HTTP over TLS
- Client PC (Printer driver): IPP over TLS
- Audit server: syslog over TLS
- Mail server: SMTP over TLS
- FTP server: FTP over TLS
- Authentication server: LDAP over TLS
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6 Documentation
The identification of the guidance documents of the TOE is listed in Table 6-1. TOE users
are required to fully understand and comply with the following documents in order to
satisfy the assumptions.
Table 6-1 Guidance
Name Version
Start Guide TINSE5505FCZZ KS2
Quick Start Guide bp70c65_qsg_02a_us
User’s Manual bp70c65_usr_02a_us
Software Setup Guide software-setup_a30-01a_en
Data Security Kit Operation Guide bp70C65_dk1_01a_en
Data Security Kit Notice Q1-1
How to set up this product to be the “Protection
Profile for Hardcopy Devices” compliant
Q1-1
JISEC-CC-CRP-C0768-01-2022
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7 Evaluation conducted by Evaluation Facility and Results
7.1 Evaluation Facility
Information Technology Security Center, Evaluation Department that conducted the
evaluation as the Evaluation Facility is approved under JISEC and is accredited by NITE
(National Institute of Technology and Evaluation), the Accreditation Body, which joins
Mutual Recognition Arrangement of ILAC (International Laboratory Accreditation
Cooperation). It is periodically confirmed that the above Evaluation Facility meets the
requirements on the appropriateness of the management and evaluators for maintaining
the quality of evaluation.
7.2 Evaluation Approach
The evaluation was conducted in accordance with the assurance requirements in the CC
Part 3 required by the Conformance PP using the evaluation methods prescribed in the
CEM and the assurance activities of the Conformance PP.
Details for evaluation activities were reported in the Evaluation Technical Report. The
Evaluation Technical Report explains the summary of the TOE as well as the content of
the evaluation and the verdict for each work unit in the CEM and assurance activity of
the Conformance PP.
7.3 Overview of Evaluation Activity
The history of the evaluation conducted is described in the Evaluation Technical Report
as follows.
The evaluation started in 2022-05 and concluded upon completion of the Evaluation
Technical Report dated 2022-10. The Evaluation Facility received a full set of evaluation
deliverables necessary for evaluation provided by the developer, and examined the
evidence in relation to a series of evaluation conducted. Furthermore, the evaluator
conducted the evaluator testing at the developer site in 2022-06.
Concerns found in evaluation activities were issued as the Observation Reports and
reported to the developer. Those concerns were reviewed by the developer, and all the
concerns were solved eventually.
Concerns in the evaluation process that the Certification Body found were described as
the certification oversight reviews and sent to the Evaluation Facility.
JISEC-CC-CRP-C0768-01-2022
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After the Evaluation Facility and the developer examined the concerns, those were
reflected in the Evaluation Technical Report.
7.4 IT Product Testing
As the verification results of the evidence presented in the evaluation process, the
evaluator performed the evaluator independent testing to ensure that the security
functions of the product are accurately implemented and the evaluator penetration
testing based on the vulnerability assessment.
7.4.1 Developer Testing
The developer testing is not included in the assurance requirements of this evaluation.
7.4.2 Evaluator Independent Testing
The evaluator conducted evaluator independent testing (hereinafter referred to as
"independent testing") based on the evidence presented during the evaluation to ensure
that the security functions of the product are accurately implemented. The independent
testing performed by the evaluator is explained as follows.
Independent Testing Environment
The environment for the independent testing is based on the operational
environment of the TOE shown in Figure 4-1. The components used in the
independent testing environment are listed in Table 7-1.
Table 7-1 Components of Independent Testing
Components Description
TOE - SHARP BP-70C65 fax-optional PS-standard model with BP-
FR12U
Version: 0220Q100
- SHARP BP-50C26 fax-optional PS-optional model with BP-
FR12U and MX-PK13
Version: 0220Q100
Audit server rsyslog ver.8.24.0
Mail server Postfix ver.2.10.1
FTP server Microsoft Internet Information Services ver.10.0.19041.1586
Authentication
server
openLDAP ver2.4.44
Client PC OS : Windows 10
Web browser :
- Microsoft Edge 101
Printer Driver:
- SHARP BP-70C65 PCL6 02.00.15.16
- SHARP BP-50C26 PCL6 02.00.15.16
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There are following differences between the configuration of the independent testing
and the TOE configuration identified in the ST. The evaluator determined that there
are no problems with those differences and that the security functions of the TOE
configuration identified in the ST can be considered properly tested.
1) Tested models
In the models of the TOE described in Chapter 2 "TOE identification," there are
multiple models due to the following differences:
- Differences in Postscript Configurations (Standard or Optional)
- Difference in printing speed
The evaluator determined that the security functions of all the models of the TOE
can be considered to have been tested by testing the representative two models
considering the above differences, because the security functions of each models
are the same.
2) Using a modified firmware for testing
In the independent testing, a firmware modified for testing was used to verify the
encryption functions instead of the firmware of the TOE. The evaluator determined
that the testing on the modified firmware is valid because its modules of the
encryption functions are the same as that of the TOE, and the modification for
testing does not affect the encryption functions.
3) Using additional testing tools
In the independent testing, some testing tools were used to confirm and alter the
communication data and to confirm the encryption functions. The validity of those
testing tools was confirmed by the evaluator.
Summary of the Independent Testing
A summary of the independent testing is as follows.
a. Viewpoints of the Independent Testing
The viewpoints of the independent testing devised by the evaluator based on the
requirements of the Conformance PP and on the evaluation documentation
submitted for evaluation are shown below.
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<Viewpoints of the Independent Testing>
1. Confirm security functions for each Security Functional Requirement (SFR).
2. Confirm that the implementation of the cryptographic algorithms is correct.
b. Independent Testing Outline
An outline of the independent testing that the evaluator performed is as follows.
<Independent Testing Approach>
The behavior of the TOE for inputs using the control panel of the TOE, the
client PC and the testing tools was confirmed by following means:
- If the behavior can be confirmed from the external interfaces of the TOE, the
external interfaces of the TOE are used.
- If the behavior cannot be confirmed from the external interfaces of the TOE,
the firmware for testing is used.
<Content of the Performed Independent Testing>
The independent testing was performed on 34 items by the evaluator.
Table 7-2 shows contents of the independent testing corresponding to the
viewpoints.
Table 7-2 Content of the Performed Independent Testing
Viewpoint Outline of the Independent Testing
1 Confirmation of security functions
Confirm that all security functions work as the specification with the test
items created based on the assurance activities of the Conformance PP
for each SFR or the requirements of the SFR.
2 Confirmation of implementation of cryptographic algorithms
Confirm the following cryptographic algorithms are implemented as the
specification using the test program installed in the TOE.
- RSA (key generation, signature generation/verification)
- ECDSA (signature verification)
- AES-ECB-128, AES-ECB-256, AES-CBC-128, AES-CBC-256, AES-
GCM-128, AES-GCM-256
- SHA-1, SHA-256, SHA-384, SHA-512
- HMAC-SHA-1, HMAC-SHA-256, HMAC-SHA-384
- CTR_DRBG
JISEC-CC-CRP-C0768-01-2022
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c. Result
All the independent testing performed by the evaluator was correctly completed,
and the evaluator confirmed the behavior of the TOE. The evaluator confirmed
consistencies between the expected behavior and all the testing results.
7.4.3 Evaluator Penetration Testing
The evaluator devised and performed the evaluator penetration testing (hereinafter
referred to as the "penetration testing") on the potentially exploitable vulnerabilities of
concern under the assumed environment of use and attack level from the evidence
presented in the process of the evaluation. The penetration testing performed by the
evaluator is explained as follows.
Summary of the Penetration Testing
A summary of the penetration testing performed by the evaluator is as follows.
a. Vulnerability of Concern
The evaluator searched into the provided documentation and the publicly available
information for the potential vulnerabilities, and then identified the following
vulnerabilities which require the penetration testing.
1. There is a concern that unintended network ports of the TOE may be open,
and known vulnerabilities may exist in the network services running on the
TOE.
2. There is a concern that known vulnerabilities may exist in the Web interface
of the TOE.
3. There is a concern that known vulnerabilities may exist in the print
processing of the TOE.
4. There is a concern that the identification and authentication function may
be bypassed by the malicious input from the control panel of the TOE, printer
driver or Web interface.
5. When the TOE operates as a TLS client, there may be vulnerabilities in the
verification of the server certificate of the communication destination.
b. Penetration Testing Outline
The evaluator performed the following penetration testing to identify potentially
exploitable vulnerabilities.
<Penetration Testing Environment>
JISEC-CC-CRP-C0768-01-2022
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The penetration testing was performed in the same environment as that of the
evaluator independent testing, except for the additional tools for penetration
testing. Table 7-3 shows the tools used in the penetration testing.
Table 7-3 Penetration Testing Tools
Name Outline and Purpose of Use
Nmap 7.9.2 A tool to detect available network service ports.
Nessus 10.2.0 A tool to detect known vulnerabilities at
network ports.
OWASP ZAP 2.11.1
Active scanner rules(beta) v27.0.0
Added
A tool to detect known vulnerabilities at Web
application.
PRET 0.40 A tool to inspect various vulnerabilities in a
printing processing.
<Content of the Performed Penetration Testing>
Table 7-4 shows contents of the penetration testing corresponding to the
vulnerabilities of concern.
Table 7-4 Content of the Performed Penetration Testing
Vulnerability Penetration Testing Outline
1 - Confirm that unexpected network ports of the TOE are not open using
Nmap.
- Confirm that there are no known vulnerabilities in the network
services running on the TOE using Nessus.
2 - Confirm that there are no known vulnerabilities in the Web interface
of the TOE using OWASP ZAP.
3 - Confirm that there are no known vulnerabilities in print processing of
the TOE using PRET and exploit codes obtained on the Internet.
4 - Confirm that unexpected behaviour is not observed even if the
character strings that may cause unauthrised processing are input in
the control panel, printer driver and Web interface.
5 - Confirm that TOE has correctly performed the verification of the TLS
server certificate in mail processing.
c. Result
In the penetration testing performed by the evaluator, the evaluator did not find
any exploitable vulnerabilities that attackers who have the assumed attack
potential could exploit.
7.5 Evaluated Configuration
The conditions of the TOE configuration, that are prerequisites for this evaluation, are as
described in the guidance documents listed in Chapter 6. In order to use the TOE securely
JISEC-CC-CRP-C0768-01-2022
22
as ensured by the evaluation, the TOE must be set as described in the guidance
documents. Different settings are not subject to assurance by this evaluation.
7.6 Evaluation Results
The evaluator had concluded that the TOE satisfies all work units prescribed in the CEM
and all assurance activities in the Conformance PP as per the Evaluation Technical
Report.
In the evaluation, the following were confirmed.
- PP Conformance:
Protection Profile for Hardcopy Devices 1.0 dated September 10, 2015
Protection Profile for Hardcopy Devices - v1.0 Errata #1, June 2017
Guideline for Certification Application with HCD-PP Conformance [16]
- Treatment regarding FCS_RBG_ EXT.1 Test
- Treatment regarding FCS_TLS_ EXT.1.1 Test
- Security functional requirements: Common Criteria Part 2 Extended
- Security assurance requirements: Common Criteria Part 3 Conformant
As a result of the evaluation, the verdict "PASS" was confirmed for the following
assurance components required by the Conformance PP.
ASE_INT.1, ASE_CCL.1, ASE_SPD.1, ASE_OBJ.1, ASE_ECD.1,
ASE_REQ.1, ASE_TSS.1, ADV_FSP.1, AGD_OPE.1, AGD_PRE.1,
ALC_CMC.1, ALC_CMS.1, ATE_IND.1, AVA_VAN.1
The result of the evaluation is only applied to those which are composed by the TOE
corresponding to the identification described in the Chapter 2.
7.7 Evaluator Comments/Recommendations
There is no evaluator recommendation to be addressed to procurement entities.
JISEC-CC-CRP-C0768-01-2022
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8 Certification
Based on the evidence submitted by the Evaluation Facility during the evaluation
process, the Certification Body has performed certification by checking that the following
requirements are satisfied:
1. Contents pointed out in the Observation Reports shall be adequate.
2. Contents pointed out in the Observation Reports shall properly be solved.
3. The submitted documentation was sampled, the content was examined, and the
related work units in the CEM and assurance activities of the Conformance PP shall
be evaluated as presented in the Evaluation Technical Report.
4. Rationale of the evaluation verdict by the evaluator presented in the Evaluation
Technical Report shall be adequate.
5. The evaluator's evaluation methodology presented in the Evaluation Technical
Report shall conform to the CEM and the assurance activities of the Conformance
PP.
Concerns found in the certification process were prepared as the certification oversight
reviews, and they were sent to the Evaluation Facility. The Certification Body confirmed
such concerns pointed out in the certification oversight reviews were solved in the ST and
the Evaluation Technical Report and issued this Certification Report.
8.1 Certification Result
As a result of verification of the Evaluation Technical Report, Observation Report and
related evaluation documentation submitted by the Evaluation Facility, the Certification
Body determined that the TOE evaluation satisfies the assurance requirements required
by the Conformance PP.
8.2 Recommendations
Procurement entities who are interested in the TOE are advised to refer "4.2
Environmental Assumptions" and "7.5 Evaluated Configuration" to make sure the scope
of the evaluation and the operational requirements of the TOE meet the operational
conditions assumed by each user.
If the transmission of the audit data to the audit server fails, the warning messages are
displayed on the operation panel and the web page. The TOE tries to retransmit, but the
operator needs to be careful about the warning messages.
JISEC-CC-CRP-C0768-01-2022
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9 Annexes
There is no annex.
10 Security Target
The Security Target [12] of the TOE is provided as a separate document from this
Certification Report.
Title: SHARP BP-70C65 / 70C55 / 70C45 / 70C36 / 70C31 / 60C45 /
60C36 / 60C31 fax-optional PS-standard model with BP-
FR12U; and BP-55C26 / 50C65 / 50C55 / 50C45 / 50C36 / 50C31
/ 50C26 fax-optional PS-optional model with BP-FR12U and
MX-PK13 Security Target
Version: 1.02
Publication Date: 2022-10-05
Author: SHARP CORPORATION
JISEC-CC-CRP-C0768-01-2022
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11 Glossary
The abbreviations relating to the CC used in this report are listed below.
CC Common Criteria for Information Technology Security Evaluation
CEM Common Methodology for Information Technology Security Evaluation
PP Protection Profile
SFR Security Functional Requirement
ST Security Target
TOE Target of Evaluation
TSF TOE Security Functionality
The abbreviations relating to the TOE used in this report are listed below.
MFD Multifunction Device
PSTN Public Switched Telephone Network
The abbreviations relating to information technology used in this report are listed below.
AES Advanced Encryption Standard
CBC Cipher Block Chaining
CTR_DRBG Counter (CTR) mode block cipher algorithm DRBG
DRBG Deterministic Random Bit Generator
ECB Electronic Codebook
ECDSA Elliptic Curve Digital Signature Algorithm
FTP File Transfer Protocol
GCM Galois/ Counter Mode
HMAC Keyed-Hash Message Authentication Code
HTTP Hypertext Transfer Protocol
IPP Internet Printing Protocol
LDAP Lightweight Directory Access Protocol
RSA Rivest Shamir Adleman
SHA Secure Hash Algorithm
SMTP Simple Mail Transfer Protocol
TLS Transport Layer Security
The definitions of terms used in this report are listed below.
JISEC-CC-CRP-C0768-01-2022
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Field Replaceable
(Unit)
The smallest subassembly that can be swapped in the field
to repair a fault.
Hardcopy Device A system producing or utilizing a physical embodiment of an
electronic document or image. These systems include
printers, scanners, fax machines, digital copiers, MFPs
(multifunction peripherals), MFDs (multifunction devices),
“all-in-ones” and other similar products.
Copy function It is a function to copy and print the user document data
scanned from paper documents by user's operation from the
operation panel.
Scanner function It is a function to scan paper documents and send the
scanned user document data to the mail server and FTP
server by user's operation from the operation panel.
Document filing
function
It is a function to store the user document data in the
internal storage of the TOE at the same time with the copy
function, etc., and to print the stored user document data by
user's operation from the operation panel or from the client
PC via the LAN.
Fax function It is a function to send and receive the document data to and
from external fax machines conforming to the G3 standard
connected by the PSTN.
It consists of the fax transmission function, in which paper
documents are scanned and the scanned document data are
sent to the external fax machine, and the fax reception
function, in which document data sent from an external fax
machine are received and printed by user's operation.
Printer function It is a function to receive the user document data via the LAN
from the printer driver of the client PC and print it by user's
operation from the operation panel.
Assurance Activity Evaluation work to be performed by an evaluator in order to
conform to a PP. It is a supplement of the CEM. In the case of
the Conformance PP [14], it is described in the Conformance
PP.
JISEC-CC-CRP-C0768-01-2022
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12 Bibliography
[1] IT Security Evaluation and Certification Scheme Document, October 2020,
Information-technology Promotion Agency, Japan, CCS-01
[2] Requirements for IT Security Certification, October 2020,
Information-technology Promotion Agency, Japan, CCM-02
[3] Requirements for Approval of IT Security Evaluation Facility, October 2021,
Information-technology Promotion Agency, Japan, CCM-03
[4] Common Criteria for Information Technology Security Evaluation Part 1:
Introduction and general model, Version 3.1 Revision 5, April 2017, CCMB-2017-04-
001
[5] Common Criteria for Information Technology Security Evaluation Part 2:
Security functional components, Version 3.1 Revision 5, April 2017,
CCMB-2017-04-002
[6] Common Criteria for Information Technology Security Evaluation Part 3:
Security assurance components, Version 3.1 Revision 5, April 2017,
CCMB-2017-04-003
[7] Common Criteria for Information Technology Security Evaluation Part 1:
Introduction and general model, Version 3.1 Revision 5, April 2017, CCMB-2017-04-
001, (Japanese Version 1.0, July 2017)
[8] Common Criteria for Information Technology Security Evaluation Part 2:
Security functional components, Version 3.1 Revision 5, April 2017,
CCMB-2017-04-002, (Japanese Version 1.0, July 2017)
[9] Common Criteria for Information Technology Security Evaluation Part 3:
Security assurance components, Version 3.1 Revision 5, April 2017,
CCMB-2017-04-003, (Japanese Version 1.0, July 2017)
[10] Common Methodology for Information Technology Security Evaluation:
Evaluation methodology, Version 3.1 Revision 5, April 2017,
CCMB-2017-04-004
[11] Common Methodology for Information Technology Security Evaluation:
Evaluation methodology, Version 3.1 Revision 5, April 2017,
CCMB-2017-04-004, (Japanese Version 1.0, July 2017)
[12] SHARP BP-70C65 / 70C55 / 70C45 / 70C36 / 70C31 / 60C45 / 60C36 / 60C31 fax-
optional PS-standard model with BP-FR12U; and BP-55C26 / 50C65 / 50C55 / 50C45
/ 50C36 / 50C31 / 50C26 fax-optional PS-optional model with BP-FR12U and MX-
PK13 Security Target, Version 1.02, October 05, 2022, SHARP CORPORATION
[13] SHARP CORPORATION SHARP BP-70C65 / 70C55 / 70C45 / 70C36 / 70C31 / 60C45
/ 60C36 / 60C31 fax-optional PS-standard model with BP-FR12U; and BP-55C26 /
50C65 / 50C55 / 50C45 / 50C36 / 50C31 / 50C26 fax-optional PS-optional model with
JISEC-CC-CRP-C0768-01-2022
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BP-FR12U and MX-PK13 Evaluation Technical Report, Version 1.1, October 14,
2022, Information Technology Security Center Evaluation Department
[14] Protection Profile for Hardcopy Devices 1.0 dated September 10, 2015 (Certification
Identification: JISEC-C0553)
[15] Protection Profile for Hardcopy Devices - v1.0 Errata #1, June 2017
[16] Guideline for Certification Application with HCD-PP Conformance, Version 1.8,
November 11, 2020, Information-technology Promotion Agency, Japan, JISEC-CERT-
2020-A18