Certification Report: c0240_erpt

Certification Report: c0240_erpt
CRP-C0240-01
Certification Report
Koji Nishigaki, Chairman
Information-technology Promotion Agency, Japan
Target of Evaluation
Application date/ID
Certification No.
Sponsor
Name of TOE
Version of TOE
PP Conformance
Conformed Claim
Developer
Evaluation Facility
2009-03-23 (ITC-9251)
C0240
Konica Minolta Business Technologies, Inc.
Japanese : bizhub C360 / bizhub C280 / bizhub C220
ineo + 360 / ineo + 280 / ineo + 220
VarioLink 3622c / VarioLink 2822c
VarioLink 2222c Zentai Seigyo Software
English : bizhub C360 / bizhub C280 / bizhub C220
ineo + 360 / ineo + 280 / ineo + 220
VarioLink 3622c / VarioLink 2822c
VarioLink 2222c Control Software
A0ED0Y0-0100-GM0-12
None
EAL3
Konica Minolta Business Technologies, Inc.
Mizuho Information & Research Institute, Inc.
Center for Evaluation of Information Security
/
/
/
/
/
/
This is to report that the evaluation result for the above TOE is certified as
follows.
2009-11-30
Takumi Yamasato, Technical Manager
Information Security Certification Office
IT Security Center
Evaluation Criteria, etc.: This TOE is evaluated in accordance with the following
criteria prescribed in the "IT Security Evaluation and
Certification Scheme".
- Common Criteria for Information Technology Security Evaluation
Version 3.1 Revision 2
- Common Methodology for Information Technology Security Evaluation
Version 3.1 Revision 2
Evaluation Result: Pass
"Japanese : bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360 / ineo + 280 /
CRP-C0240-01
ineo + 220 / VarioLink 3622c / VarioLink 2822c / VarioLink 2222c Zentai Seigyo
Software, English : bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360 / ineo +
280 / ineo + 220 / VarioLink 3622c / VarioLink 2822c / VarioLink 2222c Control
Software, Version : A0ED0Y0-0100-GM0-12 " has been evaluated in accordance
with the provision of the "IT Security Certification Procedure" by
Information-technology Promotion Agency, Japan, and has met the specified
assurance requirements.
CRP-C0240-01
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.
CRP-C0240-01
Table of Contents
1. Executive Summary ............................................................................... 1
1.1 Introduction ..................................................................................... 1
1.1.1 EAL ........................................................................................... 1
1.1.2 PP Conformance ......................................................................... 1
1.2 Evaluated Product ............................................................................ 1
1.2.1 Name of Product ......................................................................... 1
1.2.2 Product Overview ........................................................................ 1
1.2.3 Scope of TOE and Security Functions ........................................... 2
1.3 Conduct of Evaluation ...................................................................... 8
1.4 Certification ..................................................................................... 8
2. Summary of TOE ................................................................................... 9
2.1 Security Problem and assumptions .................................................... 9
2.1.1 Threat ....................................................................................... 9
2.1.2 Organizational Security Policy ................................................... 11
2.1.3 Assumptions for Operational Environment .................................. 11
2.1.4 Documents Attached to Product ................................................. 12
2.1.5 Configuration Requirements ...................................................... 12
2.2 Security Objectives ......................................................................... 12
3. Conduct and Results of Evaluation by Evaluation Facility ...................... 17
3.1 Evaluation Methods ........................................................................ 17
3.2 Overview of Evaluation Conducted ................................................... 17
3.3 Product Testing .............................................................................. 17
3.3.1 Developer Testing ..................................................................... 17
3.3.2 Evaluator Independent Testing .................................................. 20
3.3.3 Evaluator Penetration Testing .................................................... 22
3.4 Evaluation Result ........................................................................... 25
3.4.1 Evaluation Result ..................................................................... 25
3.4.2 Evaluator comments/Recommendations ..................................... 25
4. Conduct of Certification ....................................................................... 26
5. Conclusion ......................................................................................... 27
5.1 Certification Result ......................................................................... 27
5.2 Recommendations .......................................................................... 27
6. Glossary ............................................................................................. 28
7. Bibliography ....................................................................................... 31
CRP-C0240-01
1. Executive Summary
1.1 Introduction
This Certification Report describes the content of certification result in relation to IT
Security Evaluation of "Japanese : bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360
/ ineo + 280 / ineo + 220 / VarioLink 3622c / VarioLink 2822c / VarioLink 2222c Zentai
Seigyo Software, English : bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360 / ineo +
280 / ineo + 220 / VarioLink 3622c / VarioLink 2822c / VarioLink 2222c Control Software,
Version : A0ED0Y0-0100-GM0-12" (hereinafter referred to as "the TOE") conducted by
Mizuho Information & Research Institute, Inc. Center for Evaluation of Information
Security (hereinafter referred to as "Evaluation Facility"), and it reports to the sponsor,
Konica Minolta Business Technologies, Inc. and provides information to the users and
system operators who are interested in this TOE.
The reader of the Certification Report is advised to read the corresponding ST. The
operational conditions, details of usage assumptions, corresponding security objectives,
security functional and assurance requirements needed for its enforcement, their
summary of security specifications and rationale of sufficiency are specifically
described in ST.
This certification report assumes "general consumer" to be a reader. Note that the
Certification Report presents the certification result based on assurance requirements
conformed to the TOE, and does not certify individual IT product itself.
1.1.1 EAL
Evaluation Assurance Level of TOE defined by this ST is EAL3.
1.1.2 PP Conformance
There is no PP to be conformed.
1.2 Evaluated Product
1.2.1 Name of Product
The target product by this Certificate is as follows;
Name of Product: Japanese : bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360 /
ineo + 280 / ineo + 220 / VarioLink 3622c / VarioLink
2822c / VarioLink 2222c Zentai Seigyo Software
English : bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360 /
ineo + 280 / ineo + 220 / VarioLink 3622c / VarioLink
2822c / VarioLink 2222c Control Software
Version:
A0ED0Y0-0100-GM0-12
Developer:
Konica Minolta Business Technologies, Inc.
1.2.2 Product Overview
bizhub C360, bizhub C280, bizhub C220, ineo + 360, ineo + 280, ineo + 220, VarioLink
3622c, VarioLink 2822c, VarioLink 2222c, which this TOE is installed, are digital
multi-function products provided by Konica Minolta Business Technologies, Inc.,
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composed by selecting and combining copy, print, scan and FAX functions. (Hereinafter
all the products are referred to as "MFP".)
TOE is the "control software for bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360 /
ineo + 280 / ineo + 220 / VarioLink 3622c / VarioLink 2822c / VarioLink 2222c" that
controls the entire operation of MFP, including the operation control processing and
the image data management triggered by the panel of the main body of MFP or through
the network. TOE supports the protection function from exposure of the highly
confidential documents stored in the MFP. Moreover, for the danger of illegally
bringing out HDD, which stores image data in MFP, TOE can encrypt all the data
written in HDD including image data using ASIC (Application Specific Integrated
Circuit). Besides, TOE provides the function that deletes all the data of HDD
completely with deletion method compliant with various overwrite deletion standards
and the function that controls the access from the public line against the danger using
Fax function as a steppingstone to access internal network.
1.2.3 Scope of TOE and Security Functions
1.2.3.1 Roles related TOE
The roles related to this TOE are defined as follows.
(1) User
An MFP user who is registered into MFP. In general, the employee in the office is
assumed.
(2) Administrator
An MFP user who manages the operations of MFP. Manages MFP's mechanical
operations and users. In general, it is assumed that the person elected from the
employees in the office plays this role.
(3) Service engineer
A user who manages the maintenance of MFP. Performs the repair and adjustment
of MFP. In general, the person-in-charge of the sales companies that performs the
maintenance service of MFP in cooperation with Konica Minolta Business
Technologies, Inc. is assumed.
(4) Responsible person of the organization that uses the MFP
A responsible person of the organization that manages the office where the MFP is
installed. Assigns an administrator who manages the operation of MFP.
(5) Responsible person of the organization that manages the maintenance of the MFP
A responsible person of the organization (In general, the sales companies that
performs the maintenance service of MFP) that manages the maintenance of MFP.
Assigns service engineers who manage the maintenance for MFP.
Besides this, though not a user of TOE, those who go in and out the office are assumed
as accessible person to TOE.
1.2.3.2 Scope of TOE and Overview of Operation
TOE is the MFP control software and is installed in the flash memory on the MFP
controller in the main body of MFP. It is loaded and run on the RAM when main power is
switched ON. The relation between TOE and MFP is shown in Figure 1-1.
FAX unit is optional parts of MFP. The optional part of FAX unit is installed at the use
of FAX function for the environment of TOE operation.
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CRP-C0240-01
MFP
RS-232C
CPU
RAM
ASIC
Ethernet
NVRAM
USB
Flash Memory
HDD
- Message data
etc.
Public line
Main/Sub
Power
Panel
Operator
Operator
-Scanner Unit
-Automatic
Document Feeder
Paper
Printer
Unit
Paper
Figure 1-1 Hardware composition relevant to TOE
The composition of TOE are shown as follows.
(1)Flash memory
A storage medium that stores the object code of the "MFP Control Software",
which is the TOE. Additionally, stores the message data expressed in each
country's language to display the response to access through the panel and
network.
(2)NVRAM
A nonvolatile memory. This memory medium stores various settings that MFP
needs for the processing of TOE.
(3)ASIC
An integrated circuit for specific applications which implements an encryption
function for enciphering the data written in HDD.
(4)HDD
A hard disk drive of 250GB in capacity. This is used not only for storing image data
as files but also as an area to save image data and destination data temporarily
during extension conversion and so on.
(5)Main/sub power supply
Power switches for activating MFP
(6)Panel
An exclusive control device for the operation of the MFP, equipped with a touch
panel of a liquid crystal monitor, ten-key, start key, stop key, screen switch key,
etc.
(7)Scanner unit/ automatic document feeder
A device that scans images and photos from paper and converts them into digital
data
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(8)Printer unit
A device that actually prints the image data which were converted for printing
when receives a print request by the MFP controller
(9)Ethernet
Supports 10BASE-T, 100BASE-TX, and Gigabit Ethernet
(10)USB
Copying image file to a USB memory, copying or printing image file from a USB
memory, update of TOE, and so on can be performed through this interface.
(11)RS-232C
Serial connection using D-sub 9 pins connectors is usable. The maintenance
function is usable through this interface in the case of failure. It is also possible
to use the remote diagnostic function (described later) by connecting with the
public line via a modem.
(12) FAX Unit (*Option)
A device that has a port of Fax public line and is used for communications for
FAX-data transmission and remote diagnostic (described later) via the public
line. Is not pre-installed in MFP as a standard function according to the
circumstances in sales, but sold as an optional part. Fax unit is purchased when
the organization needs it, and the installation is not indispensable.
Users of TOE (users, administrators, service engineers) use a variety of functions of
TOE from the panel and a client PC via the network. The Overview of TOE functions
are shown as follows.
(1)Basic Function
In MFP, a series of functions for the office work concerning the image such as copy,
print, scan, and fax exists as basic functions, and TOE performs the core control in
the operation of these functions. It converts the raw data acquired from the
external device of the MFP controller into the image files, and registers them in
RAM and HDD. (For print image files from client PCs, multiple types of conversion
are applied.) These image files are converted into data to be printed or sent, and
transmitted to the device outside of the MFP controller concerned.
Operations of copy, print, scan, and fax are managed by the unit of job, so that
operation priority can be changed by giving directions from the panel, finishing of
print jobs can be changed, and such operations can be aborted.
(2)Secure Print Function
When a Secure Print password is received together with printing data, the image
file is stored as standby status. Then, printing is performed by a print direction
and password entry from the panel.
(3)ID & Print Function
When this function is set up, usual print data are saved in the print waiting state,
and printed by the user authentication processing from the panel. Even when this
function is not set up, if it is specified on the print data to activate this function,
the system will operate in the same manner as this function is set up by a user.
(4)User Box Function
A directory called "user box" can be created as an area to store image files in HDD.
Three types of user box are usable; the first is the personal user box which a user
possesses, the second is the public user box which is shared by registered users
who made a certain number of groups, and the third is the group box which is
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shared by the users belonging to same account. As for the personal user box, the
operation is limited only for the user who owns it, the public user box performs
access control by sharing a password set to the user box among users, and group
box limits operations only for the users of the account that are permitted to use it.
TOE processes the following operation requests to a user box or image files in the
user box that is transmitted from the panel or the network unit through a network
from a client PC.
(5)User Authentication Function
TOE can limit the user who uses MFP. For access through the panel or the network,
TOE identifies and authenticates that the user is permitted to use the MFP by
applying the user password and user ID. When the identification and
authentication succeeds, TOE permits the user the use of the basic function and
the user box function etc.
The following are supported in the method of the user authentication.
[Machine authentication]
A method to authenticate user at MFP by registering a user ID and a user
password into HDD on the MFP controller.
[External server authentication]
A method to authenticate user at MFP by using the user ID and the user
password that are registered on the user information management server which
is connected with the intra-office LAN without managing the user ID and user
password on the MFP side.
In this evaluation, machine authentication and external server authentication
using Active Directory are the targets for evaluation.
(6)Account Authentication Function
TOE can manage the MFP users by grouping them into Account unit. The methods
of Account Authentication are as follows.
[Method synchronized with User Authentication]
Set an Account ID on a user beforehand, and the user with the account ID of the
user's account when he/she is authenticated.
[Method not synchronized with User Authentication]
Associate a user with his/her account ID when the user is authenticated by the
account password set for each account ID.
(7)Administrator Function
TOE provides the functions such as the management of user boxes, management of
user information at the time of MFP authentication and management of various
settings of the network, image quality, etc in the administrator mode that only
authenticated administrator can manipulate.
(8)Service Engineer Function
TOE provides a management function of administrator and a maintenance
function, such as adjusting the device for Scan/Print etc, within the service mode
that only a service engineer can operate.
(9)Encryption Key Generation Function
Performs encryption/decryption by ASIC when writing data in HDD or reading
data from HDD. (TOE does not process the encryption and description itself.)
The operational setup of this function is performed by the administrator function.
When it operates, TOE generates the encryption key by the encryption passphrase
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CRP-C0240-01
that was entered on the panel.
(10)Remote Diagnostic Function
MFP's equipment information such as operating state and the number of printed
sheets is managed by making use of the connection by a port of FAX public line, by
a modem through RS-232C or by E-mail or WebDAV to communicate with the
support center of MFP produced by Konica Minolta Business Technologies, Inc. In
addition, if necessary, appropriate service (shipment of additional toner packages,
account claim, dispatch of the service engineers due to the failure diagnosis, etc.)
are provided.
When enhanced security function (described later) is set valid, the setting function
in the function concerned becomes invalid.
(11)Updating Function of TOE
TOE facilitated with the function to update itself. As for the update means, there
are a method that exists as one of items of remote diagnostic function, a method
that downloads from FTP server through Ethernet (TOE update function via
Internet), and a method that performs the connection of the memory medium such
as USB memory.
When enhanced security function (described later) is set valid, this updating
function of TOE through Ethernet including the request from the remote
diagnostic function becomes invalid.
(12)Encryption Communication Function
TOE can encrypt the data transmitted from client PC to MFP, and the data
received by download from MFP by using SSL/TLS. The operational setup of this
function is performed by the administrator function.
(13)S/MIME certificate automatic registration Function
It is the function to register the certificate for S/MIME (conforms to ITU-T X.509)
with each transmission address automatically. When a certificate is attached in
received e-mail, MFP recognizes user ID according to the information of e-mail
header, and registers the certificate as certificate of the same user ID.
(14) Fax unit control function
When Fax unit is installed to MFP, TOE prohibits access to the internal network,
where MFP was connected to, from a port of Fax public line through Fax unit.
(15)Enhanced Security Function
Various setting functions related to the behavior of the security function for the
Administrator function and the Service engineer function can be set collectively to
the secure values by the operation settings of the "Enhanced Security Function".
Each value set is prohibited changing itself into the vulnerable one individually.
As the function that does not have a setting function of the operation individually,
there is the reset function of the network setting and the update function of TOE
through the network, but the use of these functions is prohibited.
1.2.3.3 Security Functions of TOE
The protected assets are the following image files which are produced as MFP is
generally used.
- Secure Print File
An image file registered by Secure Print.
- ID & Print File
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An image file stored as ID & print file when print data is registered by using ID &
print function
- User Box file
An image file stored in the personal user box, public user box and group user box.
Furthermore, when the stored data have physically gone away from the jurisdiction of
a user, such as the use of MFP ended by the lease return or being disposed, or the case
of a theft of HDD, the user has concerns about leak possibility of every remaining data
in HDD and NVRAM. Therefore, in this case, the following data files become protected
assets.
- Secure Print File
- ID & Print File
- User Box File
- On-memory Image File
Image file of job in the wait state on memory.
- Stored Image File
Stored image files other than secure print file, ID & print file and user box file.
- HDD remaining Image File
The file which remains in the HDD data area that is not deleted only by general
operation (deletion of a file maintenance area).
- Image-related File
Temporary data file generated in print image file processing.
- Transmission Address Data File
File including E-mail address and telephone numbers that become the destination
to transmit an image.
TOE has the following security functions to protect the above mentioned protected
assets.
Firstly, TOE provides the identification authentication function to confirm that the
user is permitted and the access control function to limit the access to protected assets
for each user, in order to prevent the illegal operation to secure print file, ID & print
file and user box file of the protected assets.
Secondly, TOE provides encryption function of data written in HDD by using all area
overwrite deletion function of HDD, initialization function of settings for NVRAM and
encryption function by ASIC outside the TOE in order to prevent the leakage of
information from HDD and NVRAM where the protected assets are stored in MFP.
Thirdly, TOE provides trusted channel function used for the communication to
correct destination and the encrypting and transmitting function of image file sent
from MFP to client PC by using S/MIME in order to protect securely the image file
transmitted between TOE and client PC used by user or administrator.
Fourthly, TOE provides the identification and authentication function to confirm users
are an administrator or a service engineer and management function to limit the
access such as the change of setting files for each user in order to prevent the illegal
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operation against the various set files that decide operations of MFP and TOE.
1.3 Conduct of Evaluation
Based on the IT Security Evaluation/Certification Program operated by the
Certification Body, TOE functionality and its assurance requirements are being
evaluated by evaluation facility in accordance with those publicized documents such as
"IT Security Evaluation and Certification Scheme"[2], "IT Security Certification
Procedure"[3] and "Evaluation Facility Approval Procedure"[4].
Scope of the evaluation is as follow;
- Security design of the TOE shall be adequate;
- Security functions of the TOE shall be satisfied with security functional
requirements described in the security design;
- This TOE shall be developed in accordance with the basic security design;
- Above mentioned three items shall be evaluated in accordance with the CC Part 3
and CEM.
More specific, the evaluation facility examined "bizhub C360 / bizhub C280 / bizhub
C220 / ineo + 360 / ineo + 280 / ineo + 220 / VarioLink 3622c / VarioLink 2822c / VarioLink
2222c Control Software A0ED0Y0-0100-GM0-12 Security Target" as the basis design of
security functions for the TOE (hereinafter referred to as "the ST")[1], the evaluation
deliverables in relation to development of the TOE and the development,
manufacturing and shipping sites of the TOE. The evaluation facility evaluated if the
TOE is satisfied both Annex A of CC Part 1 (either of [5] or [8]) and Functional
Requirements of CC Part 2 (either of [6] or [9]) and also evaluated if the development,
manufacturing and shipping environments for the TOE is also satisfied with
Assurance Requirements of CC Part 3 (either of [7] or [10]) as its rationale. Such
evaluation procedure and its result are presented in "bizhub C360 / bizhub C280 /
bizhub C220 / ineo + 360 / ineo + 280 / ineo + 220 / VarioLink 3622c / VarioLink 2822c /
VarioLink 2222c Zentai Seigyo Software Evaluation Technical Report" (hereinafter
referred to as "the Evaluation Technical Report") [13]. Further, evaluation
methodology shall comply with the CEM (either of [11] or [12]).
1.4 Certification
The Certification Body verifies the Evaluation Technical Report and Observation
Report prepared by the evaluation facility and evaluation evidence materials, and
confirmed that the TOE evaluation is conducted in accordance with the prescribed
procedure. Evaluation is completed with the Evaluation Technical Report dated
2009-11 submitted by the evaluation facility and confirmed that the TOE evaluation is
appropriately conducted in accordance with CC and CEM. The Certification Body
prepared this Certification Report based on the Evaluation Technical Report submitted
by the evaluation facility and concluded fully certification activities.
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2. Summary of TOE
2.1 Security Problem and assumptions
Problems should be solved by TOE and necessary assumptions are as follows;
2.1.1 Threat
This TOE assumes such threats presented in Table 2-1 and provides functions for
countermeasure to them.
Table 2-1 Assumed Threats
Identifier
T.DISCARD-MFP
(Lease-return and disposal of
MFP)
T.BRING-OUT-STORAGE
(An unauthorized carrying out of
HDD)
T.ACCESS-PRIVATE-BOX
(Unauthorized
access
to
the
personal user box which used a
user function)
T.ACCESS-PUBLIC-BOX
(Unauthorized access to public box
which used a user function)
Threat
When leased MFPs are returned or discarded
MFPs are collected, secure print files, user box
files, ID & print files, on-memory image files,
stored image files, HDD-remaining image files,
image-related file, transmission address data
files, and various passwords which were set up
can leak by the person with malicious intent when
he/she analyzes the HDD or NVRAM in the MFP.
- Secure print files, user box files, ID & print files,
on-memory image files, stored image files,
HDD-remaining image files, image-related files,
transmission address data files, and various
passwords which were set up can leak by a
malicious person or a user illegally when he/she
brings out the files to analyze the HDD in a MFP.
- A person or a user with malicious intent illegally
replaces the HDD in MFP. In the replaced HDD,
newly created files such as secure print files,
user box files, ID & print files, on-memory image
files, stored image files, HDD-remaining image
files, image-related files, transmission address
data files and various passwords which were set
up are accumulated. A person or a user with
malicious intent takes out to analyze the
replaced HDD, so that such image files will leak.
Exposure of the user box file when a person or a
user with malicious intent accesses the user box
where other user owns, and moves, copies,
downloads,
prints
and
transmits
(E-mail
transmission,
FTP
transmission,
fax
transmission, SMB transmission and WebDAV
transmission) the user box file.
Exposure of the user box file when a person or a
user with malicious intent accesses the public
user box which is not permitted to use, and moves,
copies, downloads, prints and transmits (E-mail
transmission, FTP transmission, FAX
transmission, SMB transmission and WebDAV
transmission) the user box file.
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T.ACCESS-GROUP-BOX
(Unauthorized access to the group
user box which used a user
function)
T.ACCESS-SECURE-PRINT
(Unauthorized access to the secure
print file or ID & print file by
utilizing the user function)
T.UNEXPECTED-TRANSMISSION
(Transmission to
unintended
address)
Exposure of the user box file when a person or a
user with malicious intent accesses the group user
box which the account where a user does not
belong to owns, and moves, copies, downloads,
prints and transmits (E-mail transmission, FTP
transmission,
FAX
transmission,
SMB
transmission and WebDAV transmission) the user
box file.
- Secure print files are exposed by those malicious
including users when he/she prints ones to which
access is not allowed.
- ID & print files are exposed by those malicious
including users when he/she prints ones which
were registered by other users.
- Malicious person or user changes the network
settings that are related to the transmission of a
user box files. Even an addressee is set precisely,
a user box file is transmitted (the E-mail
transmission or the FTP transmission) to the
entity which a user does not intend to, so that
the user box file is exposed.
<The network settings which are related to user
box file transmission>
- Setup related to the SMTP server
- Setup related to the DNS server
- Malicious person or user changes the network
settings which set in MFP to identify MFP itself
where TOE installed, by setting to the value of
the entity such as another unauthorized MFP
from the value of MFP (NetBIOS name,
AppleTalk printer name, IP address etc) that
TOE is originally installed, so that secure print
files or ID & print files are exposed.
- Malicious person or user changes the TSI
receiving settings. A user box file is stored to the
entity which a user does not intend to, so that a
user box file is exposed.
- Malicious person or user changes the PC-FAX
operation settings. By changing the setting of
the storing for the public user box to store to
common area for all users, a user box file is
stored to the entity which a user does not intend
to, so that a user box file is exposed.
T.ACCESS-SETTING
(An unauthorized change of a
function setting condition related
to security)
T.BACKUP-RESTORE
(Unauthorized use of Backup
function and restoration function)
*This threat exists only in the case that the
operation setting of PC-FAX is meant to work as
the operation setting for box storing.
The possibility of leaking user box files, secure
print files, or ID & print files rises because those
malicious including users change the settings
related to the enhanced security function.
User box files, secure print files, or ID & print
files can leak by those malicious including users
using the backup function and the restoration
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function illegally. Also highly confidential data
such as passwords can be exposed, so that settings
might be falsified.
2.1.2 Organizational Security Policy
Organizational security policy required in use of the TOE is presented in Table 2-2.
Table 2-2 Organizational Security Policy
Identifier
P.COMMUNICATION-DATA
(secure communication of
image file)
P.REJECT-LINE
(Access prohibition
public line)
from
Organizational Security Policy
Highly confidential image file (secure print files,
user box files, and ID & print files) which
transmitted or received between IT equipment
must be communicated via a trusted pass to the
correct destination, or encrypted when the
organization or the user expects to be protected.
Access to the internal network from Fax public
line must be prohibited.
The term "between IT equipment" here indicates between client PC and MFP that the
user uses.
2.1.3 Assumptions for Operational Environment
Assumptions required in environment using this TOE presents in the Table 2-3.
The effective performance of the TOE security functions are not assured unless these
preconditions are satisfied.
Table 2-3 Assumptions in Use of the TOE
Identifier
A.ADMIN
(Personnel
conditions to be an
administrator)
Assumptions
Administrators, in the role given to them, will not
carry out a malicious act during the series of
permitted operations given to them.
A.SERVICE
(Personnel
conditions to be
service engineer)
Service engineers, in the role given to them, will
not carry out a malicious act during the series of
permitted operations given to them.
a
A.NETWORK
(Network connection
conditions for MFP)
A.SECRET
(Operating condition
about secret
- The intra-office LAN where the MFP with the
TOE will be installed is not intercepted.
- When the intra-office LAN where the MFP with
the TOE will be installed is connected to an
external network, access from the external
network to the MFP is not allowed.
Each password and encryption passphrase does
not leak from each user in the use of TOE.
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information)
A.SETTING
(Operational setting
condition enhanced
security function )
MFP with the TOE is used after enabling the
enhanced security function.
2.1.4 Documents Attached to Product
The identification of documents attached to the TOE is listed below. TOE users are
required full understanding of following documents and compliance with descriptions
in order to fulfill the above mentioned assumptions.
<Documents for administrator and user>
- bizhub C360 / C280 / C220 User's Guide [Security Functions]
(Japanese)
- bizhub C360 / C280 / C220 User's Guide [Security Operations]
(English)
- ineo + 360 / 280 / 220 User's Guide [Security Operations]
- VarioLink 3622c / 2822c / 2222c User's Guide [Security Operations]
Ver.102
Ver.102
Ver.102
Ver.102
<Documents for service engineer>
- bizhub C360 / C280 / C220 SERVICE MANUAL [SECURITY FUNCTION] Ver.102
(Japanese)
- bizhub C360 / C280 / C220 SERVICE MANUAL [SECURITY FUNCTION] Ver.102
(English)
Ver.102
- ineo + 360 / 280 / 220 SERVICE MANUAL [SECURITY FUNCTION]
- VarioLink 3622c / 2822c / 2222c SERVICE MANUAL [SECURITY FUNCTION]
Ver.102
2.1.5 Configuration Requirements
The TOE is software. This evaluation targets at the behavior on the following
hardware and software. However the reliability of hardware and software described in
the configuration is outside the scope of this evaluation.
- If the external server authentication method is selected as for the user identification
and authentication, Active Directory, the directory service provided by Windows
Server 2000 (or later), is needed to consolidate the user's information under the
Windows platform network environment as the external authentication server.
2.2 Security Objectives
TOE counters threats described in 2.1.1 as follows by implemented security functions
and fulfills the organizational security policies in 2.1.2.
(1)Security function to counter the threat [T.DISCARD-MFP (Lease return and
disposal of MFP)]
This threat assumes the possibility of leaking information from MFP collected from
the user.
TOE provides the function to overwrite data for the deletion of all area of HDD and
initializes the settings like passwords that is set in NVRAM (referred as "All area
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overwrite deletion function"), so it prevents the leakage of the protected assets and
the security settings in HDD and NVRAM connected to leased MFPs that were
returned or discarded MFPs
(2)Security function to counter the threat [T.BRING-OUT-STORAGE (Unauthorized
bring-out of HDD)]
This threat assumes the possibility that the data in HDD leaks by being stolen from
the operational environment under MFP used or by installing the unauthorized
HDD and bringing out with the data accumulated in it.
This TOE provides the generation function of encryption key to encrypt the data
written in the HDD (referred as "encryption key generation function") and
supporting function with the ASIC (referred as "ASIC operation support function")
by using the encryption function of ASIC outside of TOE, so that the encrypted data
is stored in HDD and it makes it difficult to decode the data even if the information
is read out from HDD.
(3)Security function to counter the threat [T.ACCESS-PRIVATE-BOX (Unauthorized
access to personal user box using user function)]
This threat assumes the possibility that an unauthorized operation is done by using
the user function for the personal user box which each user uses to store the image
file.
When you use various functions of MFP with this TOE, the change in settings of
users and personal user boxes is limited only to administrator and the permitted
users, and the operation of personal user box is restricted only to the normal users,
and it prevents unauthorized operation by using user functions by maintaining
functions such as the identification and authentication function of users and
administrators (referred as "user function" and "administrator function"), the
access control function for personal user box (referred as "user box function") and
the function that limits the changes in settings of users and personal user box to
administrators and users (referred as "administrator function", "user function" and
"user box function").
Furthermore, this TOE provides the function to get the authentication information
from the user information management server of Active Directory (referred as
"External server authentication operation support function"), which is out of this
TOE, in the user identification authentication function.
(4)Security function to counter the threat [T.ACCESS-PUBLIC-BOX (Unauthorized
access to public user box using user function)]
This threat assumes the possibility that an unauthorized operation is done by using
the user function for the public user box which each user shares to store the image
file.
When you use various functions of MFP with this TOE, the change in settings of
public user box and the users is limited only to administrators and the permitted
users, and the operation of public user box is restricted only to the normal users,
and it prevents unauthorized operation by using user functions, by maintaining
functions such as the identification and authentication function of users and
administrators (referred as "user function" and "administrator function"), the
authentication function on the access of public user box, access control function for
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public user box, the function that limits the changes in settings of public user box to
administrators and permitted users (referred as "user box function") and the
functions that limits the changes in settings of users to administrators and users
(referred as "administrator function" and "user function").
Furthermore, this TOE provides the function to get the authentication information
from the user information management server of Active Directory (referred as
"External server authentication operation support function"), which is out of this
TOE, in the user identification authentication function.
(5)Security function to counter the treat [T.ACCESS-GROUP-BOX (Unauthorized
access to a group user box using user function)]
This threat assumes the possibility that an unauthorized operation is performed by
using the user function for the group user box that is a storage area of image file
used by user who is permitted the use of the account, or the user box file in it.
When you use various functions of MFP with this TOE, the change in settings of
group user box and the users is limited only to administrators and the permitted
users, and the operation of group user box is restricted only to the normal users,
and it prevents unauthorized operation by using user functions, by maintaining
functions such as the identification and authentication function of users and
administrators (referred as "user function" and "administrator function"), the
access control function for group user box, the function that limits the changes in
settings of group user box to administrators and users (referred as "user box
function") and the functions that limits the changes in settings of users to
administrators and users (referred as "administrator function" and "user
function").
Furthermore, this TOE provides the function to get the authentication information
from the user information management server of Active Directory (referred as
"External server authentication operation support function"), which is out of this
TOE, in the user identification authentication function.
(6)Security function to counter the threat [T.ACCESS-SECURE-PRINT (Unauthorized
access to a secure print file using user function)]
This threat assumes the possibility that an unauthorized operation is done to the
secure print and ID & print using user function.
When you use various functions of MFP with this TOE, the changes in settings of
secure print are limited to administrators and the changes of user settings are
limited only to administrators and the permitted users, and the operation of secure
print and ID & print files are restricted only to the normal users, and it prevents
unauthorized operation by using user functions, by maintaining functions such as
the identification and authentication function of users and administrators (referred
as "user function" and "administrator function"), the authentication function with
secure print password and identification and authentication function of user
registered ID & print file, access control function for secure print and ID & print
files, the function that limits the changes in settings of secure print and ID & print
files to administrators (referred as "secure print function") and the functions that
limits the changes in settings of users to administrators and permitted users
(referred as "administrator function" and "user function").
Furthermore, this TOE provides the function to get the authentication information
from the user information management server of Active Directory (referred as
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"External server authentication operation support function"), which is out of this
TOE, in the user identification authentication function.
(7)Security function to counter the threat
(Transmission to unintended address)]
[T.UNEXPECTED-TRANSMISSION
This threat assumes the possibility of sending the information to the address that
isn't intended, when the network setting related to the transmission or the network
setting related to MFP address, PC-FAX operational setting or TSI receiving setting
is illegally changed.
This TOE provides the identification and authentication function of administrator
and functions to limit the changes of settings such as network installation, PC-FAX
operation setting and TSI receiving setting only to administrator (referred as
"administrator function"), so that the change of network installation, PC-FAX
operation setting and TSI receiving setting is restricted only to administrator, and
it prevents the possibility of transmission to the address that isn't intended.
(8)Security function to counter the threat [T.ACCESS-SETTING (Unauthorized
change of function setting condition related to security)]
This threat assumes the possibility of developing consequentially into the leakage
of the user box files, the secure print files and ID & print files by having been
changed the specific function setting which relates to security.
This TOE provides the identification and authentication function of administrator
(referred as "administrator function" and "SNMP manager function"), the
identification and authentication function of service engineer (referred as "service
mode function", and restricting function for setting the specific function related to
security only to administrator and service engineer (referred as "administrator
function", "SNMP manager function" and "service mode function"), so that the
change of the specific function related to security only to administrator and service
engineer, and as a result, it prevents the possibility of leakage of the user box file,
the secure print file or ID & print file.
(9)Security function to counter the threat [T.BACKUP-RESTORE (Unauthorized use
of back-up function and restoration function)]
This threat assumes a possibility that user box files, secure print files, and ID &
print files may leak since the back-up function or the restoration function is
illegally used. Moreover, this assumes that confidential data such as the passwords
might leak or various settings are falsified, so that user box files, secure print files,
or ID & print files may leak.
This TOE provides the identification and authentication function of administrator
and restricting function for the use of back-up function and restore function only to
administrator (referred as "administrator function"), so that the use of back-up
function and restore function is restricted only to administrator, and as a result, it
prevents the possibility of leakage of user box files, secure print files, ID & print
files and confidential data such as passwords.
(10)Security
function
to
satisfy
the
organizational
security
[P.COMMUNICATION-DATA (secure communication of image file)]
policy
This organizational security policy prescribes carrying out processing via trusted
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pass to a correct destination or encrypting to ensure the confidentiality about the
image file which flows on a network in the case of the organization or the user
expect to be protected. As this corresponds as one's request, there is no need to
provide secure communication function for all communication. At least one secure
communication method between MFP and client PC needs to be provided when
transmitting the secure print file, ID & print file or the user box file.
This TOE provides the functions such as the function to support the trusted channel
to correct destination in the transmission and reception of images between MFP
and client PC, for the user box file, the secure print file, and ID & print file
(referred as "trusted channel function"), the encryption key generation function to
transmit the user box file by S/MIME, the encryption function of user box file, the
encryption function of encrypted key for S/MIME transmission (referred as
"S/MIME encryption processing function"), the identification and authentication
function of administrator, and the function to limit the change in settings related to
the trusted channel and S/MIME only to administrator (referred as "administrator
function"), so that it realizes to transmit to correct destination by transmitting
image data confidentially in the network and restricting the change of settings only
to the administrator.
(11)Security function to satisfy the organizational security policy [P.REJECT-LINE
(Access prohibition from public line)]
This organizational security policy prohibits being accessed to internal network via
the port of Fax public line on Fax unit installed to MFP. This function is provided
when Fax unit is installed to MFP.
This TOE provides the function prohibits the access to the data existing in internal
network from public line via the port of Fax public line (referred as "Fax unit
control function"), so that it realizes to prohibit the access to the internal network
via the port of Fax public line.
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3. Conduct and Results of Evaluation by Evaluation Facility
3.1 Evaluation Methods
Evaluation was conducted by using the evaluation methods prescribed in CEM in
accordance with the assurance requirements in CC Part 3. Details for evaluation
activities are reported in the Evaluation Technical Report. It described the description
of overview of the TOE, and the contents and verdict evaluated by each work unit
prescribed in CEM.
3.2 Overview of Evaluation Conducted
The history of evaluation conducted was present in the Evaluation Technical Report as
follows;
Evaluation has started on 2009-03 and concluded by completion the Evaluation
Technical Report dated 2009-11. The evaluation facility received a full set of
evaluation deliverables necessary for evaluation provided by developer, and examined
the evidences in relation to a series of evaluation conducted. Additionally, the
evaluation facility directly visited the development and manufacturing sites on
2009-09 and examined procedural status conducted in relation to each work unit for
configuration management, delivery and operation and lifecycle by investigating
records and staff hearing. Further, the evaluation facility executed sampling check of
conducted testing by developer and evaluator testing by using developer testing
environment at developer site on 2009-09.
Concerns found in evaluation activities for each work unit were all issued as
Observation Report and were reported to developer. These concerns were reviewed by
developer and all problems were solved eventually.
3.3 Product Testing
The evaluator confirmed the validity of the test that the developer had executed.
The evaluator executed reappearance tests, additional tests and penetration tests
based on vulnerability assessments judged to be necessary from the evidence shown by
the process of the evaluation and results by the verification of the developer testing.
3.3.1 Developer Testing
The evaluator evaluated the integrity of developer testing that the developer executed
and the test documentation of actual test results
The overview of evaluated tests performed by the developer is shown as follows;
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1) Developer Test Environment
Test configuration performed by the developer is showed in the Figure 3-1.
Figure 3-1 Configuration of Developer Testing
The developer testing is executed in the same TOE test environment as TOE
configuration identified in ST.
2) Outlining of Developer Testing
The tests performed by the developer are as follows;
a. Test outline
Outline of the tests performed by the developers are as follows;
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<Testing Approach>
Test was done to execute security functions through external interface when the
functions have the external interfaces that developer can use. And it was done
to get and analyze the executed results of security functions through dump tool
or capturing tool of transmitted data when functions do not have the external
interfaces that developer can use.
<Tools and others used at Testing>
The tools and others are shown in Table 3-1.
Table 3-1 Tools and others used in developer testing
Name of hardware
Outline and Purpose of use
and software
KONICA MINOLTA
C360 Series
PCL/XPS Ver. 2.1.4.0
Internet Explorer
Ver. 6.0.2800.1106
Fiddler
Ver. 2.2.2.0
Open API test tool
Ver. 7.2.0.5
SocketDebugger
Ver. 1.12
WireShark
Ver. 1.2.0
Mozilla Thunderbird
Ver. 2.0.0.21
Open SSL
Ver.0.9.8k
(25-May-2009)
MG-SOFT MIB
Browser Professional
SNMPv3 Edition
(Hereinafter it is
omitted with MIB
Browser)
Ver. 10.0.0.4044
Tera Term Pro
Ver. 4.29
Disk dump editor
Ver. 1.4.3
Stirling
Ver. 1.31
Exclusive printer driver software included in the
bundled CD of bizhub C360 / C280 / C220.
General purpose browser software. Used to execute
PSWC in the supplementary PC. Also used as
SSL/TLS confirmation tool.
Monitor and analyzing tool software for Web access of
http and etc. Used to test HTTP protocol between MFP
and supplementary PC.
Exclusive test tool software for the Open API
evaluation. Most of the tests for Open API are
confirmed the functions at the message level by this
tool.
Used as the test tool for TCP-Socket.
Tool software for monitoring and analyzing of the
communication on the LAN. Used to get
communication log.
General purpose mailer software. Used as the
confirmation
tool
of
S/MIME
mail
on
the
supplementary PC.
Encryption tool software for SSL and hash function.
MIB exclusive browser
related to SNMP.
software.
Used for
tests
Terminal software executed in the terminal PC. Used
to connect with MFP and to operate the terminal
software installed in the MFP to monitor the state of
TOE.
Tool software to display the contents in the HDD.
Binary editor software. Used to confirm the contents
of the encryption key and decode S/MIME message
and to edit the print file.
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Outline and Purpose of use
Name of hardware
and software
FFFTP
Ver. 1.92a
MIME Base64
Encode/Decode
Ver. 1.0
PageScope Data
Administrator
(PSDA) with Device
Set-Up and Utilities
Ver. 1.0.3000.4201
HDD Backup Utility
Ver. 1.3.02000 600
PageScope Box
Operator (PSBO)
Ver. 3.2.02000
sslproxy
Ver. 1.2
Blank Jumbo Dog
Ver. 4.2.2
CSRC center
software
Ver. 2.3.0
Used as FTP client software.
Tool software to encode/decode of MIME Base64. Used
as tool to confirm encode/decode of S/MIME message.
Device management tool software for administrator of
plural MFPs.
(Activation of the following plug-in software is
possible.)
HDD Backup Utility is the utility to backup and
restore the recorded media installed in the MFP on
the network
Tool to acquire and print the image document stored
in the HDD.
Used as the confirmation tool of trusted channel.
Proxy software in the supplementary PC operating
between MFP main body and the browser software of
the supplementary PC.
By communicating with main body through SSL and
with browser software through non-SSL, it makes
Fiddler and Socket Debugger possible to monitor
avoiding SSL encryption by sslproxy.
Simple server software for intranet.
Used as mailer server and FTP server function.
Server software for CSRC center.
b. Scope of Testing Performed
Testing is performed about 224 items by the developer.
The coverage analysis is conducted and examined to testing satisfactorily all of
the security functions described in the functional specification and the external
interface. Then, the depth analysis is conducted and examined to testing
satisfactorily all the subsystems described in the TOE design and the subsystem
interfaces.
c. Result
The evaluator confirmed consistencies between the expected test results and the
actual test results provided by the developer. The Evaluator confirmed the
developer testing approach performed and legitimacy of items performed, and
confirmed consistencies between the testing approach described in the test plan
and the actual test results.
3.3.2 Evaluator Independent Testing
Evaluator executed the independent testing to reconfirm that Security functions are
certainly implemented from the evidence shown by the process of the evaluation.
Outlining of the independent testing performed by the developer is as follow;
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1) Evaluator Independent Test Environment
Test configuration performed by the evaluator shall be the same configuration with
developer testing.
Test configuration performed by the evaluator shall be the same configuration with
TOE configuration identified in ST.
Only bizhub C360 and bizhub C280 are chosen as MFP which TOE is loaded,
however it is judged not to have any problem as a result that the following
confirmation was done by evaluator.
- It was confirmed by a document offered from developer that a difference of bizhub
C360 / bizhub C280 / bizhub C220 is only copy / print speed and a difference of the
durability guarantee value.
- The sampling test that picked out the items of developer test performed in bizhub
C360 was performed in bizhub C280, and it is confirmed that the results are same
and that security function was not influenced.
- ineo + 360 / ineo + 280 / ineo + 220 and VarioLink 3622c / VarioLink 2822c / VarioLink
2222c are OEM of bizhub C360 / bizhub C280 / bizhub C220.
2) Outlining of Evaluator Independent Testing
Independent testing performed by the evaluator is as follows;
a.
In terms of Evaluator Independent Testing
Evaluator devised the independent testing from the developer testing and the
provided documentation in terms of followings.
<Viewpoints of Test>
(1)Based on the situation of developer test, test targets are all security
functions.
(2)Test targets are all probabilistic and permutable mechanism.
(3)Test the behavior depending on the differences of password input methods to
TSI for the test of the probabilistic and permutable mechanism.
(4)Based on the strictness of the developer test, test the necessary variations.
(5)Based on the complexity of interfaces, test the necessary variations.
(6)For the interfaces with innovative and unusual character, test the necessary
variations.
b.
Outlining of Evaluator Independent Testing
Outlining of evaluator independent testing performed by the evaluator is as
follows;
<Testing Approach>
Test was done to execute security functions through external interface when the
functions have the external interfaces that evaluator can use. And it was done to
get and analyze the executed results of security functions through dump tool or
capturing tool of transmitted data when functions do not have the external
interfaces that evaluator can use.
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<Tools and others used at Testing>
The tools and others are the same as used ones at the developer test.
<Test viewpoints and testing outline>
Test outline for each independent test viewpoint is shown in Table 3-2.
Table 3-2 Viewpoints of Independent Test and Overview of Testing
Viewpoints of
Independent Test
(1) Viewpoint
(2) Viewpoint
(3) Viewpoint
(4) Viewpoint
(5) Viewpoint
(6) Viewpoint
c.
Overview of Testing
Tests were performed that were judged to be necessary
in addition to developer tests.
Tests were performed with changing the number of
letters and the types of letters by paying attention to
the probabilistic and permutable mechanism at
identification and authentication or etc. by the user.
Tests were performed with considering the operated
interfaces to confirm the behavior depending on the
difference of password input method.
Tests were judged to be needed and performed in
addition to the developer tests to confirm the WebDAV
server password modification function.
Tests were performed with considering the complexity
of various user boxes combination to confirm the
action at changing the types of user boxes.
Tests were performed with judging the function being
innovative and unusual character to confirm the
action of the Fax unit control function.
Result
Evaluator independent tests conducted were completes correctly and could
confirm the behavior of the TOE. The evaluator also confirmed that all the test
results are consistent with the expected behavior.
3.3.3 Evaluator Penetration Testing
Evaluator devised and conducted the necessary penetration testing about the
possibility of exploitable concern at assumed environment of use and attack level.
Outlining of Evaluator penetration testing is as follows;
1) Outlining of Evaluator Penetration Testing
Outlining of penetration testing performed by the evaluator is as follows;
a. Vulnerability of concern
Evaluator searched the potential vulnerability from information which is
within the public domain and provided evidence to identify the following
vulnerability that requires penetration testing.
<Vulnerability requiring the penetration tests>
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(1)Possibility to be activated the unexpected service.
(2)Possibility to be detected the public vulnerability by the vulnerability
checking tool.
(3)Possibility to affect the behavior of the TOE through the variation of input
data.
(4) Possibility of the easy speculation of session information.
(5) Possibility to affect the security functions by the power ON/OFF.
(6) Possibility of the inappropriate exclusive access control.
(7) Possibility to affect the security functions through the setting status of
encryption passphrase.
b. Scope of Test Performed
Evaluator conducted the following penetration testing to determine the
exploitable potential vulnerability.
<Testing Environment>
Figure 3-2 shows the penetration test configuration used by evaluator.
Figure 3-2 Configuration of Penetration Testing
<Testing Approach>
Penetration tests were done by the following methods.
- Method to check by the visual observation of the behavior after stimulating
TOE with operating from the operational panel.
- Method to check by the visual observation of the behavior after accessing TOE
through network with operating the supplementary PC.
- Method to check by the test tool of the behavior after tampering parameters
by using test tool.
- Method to scan the publicly known vulnerability by the vulnerability checking
tool with operating the inspection PC.
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<Tools and others used at Testing>
The tools etc. used at tests are shown in Table 3-3
Table 3-3 Tools and others used at Penetration Testing
Test
Configuration
Environment
Inspection object
(TOE)
Supplementary
PC
Inspection PC
Details
- TOE installed in bizhub C360/C280/C220
(Version: A0ED0Y0-0100-GM0-12)
- Network configuration
Penetration Tests were done by connecting each MFP
with hub or cross-cable.
- PC with network terminal operated on Windows XP
(SP2).
- Using the tools shown in table 3-1.
(Fiddler, OpenAPI test tool, SocketDebugger etc.)
- Access the MFP by using PSWC (abbreviation of
"PageScope Web Connection"), HTTPS, TCPSocket,
OpenAPI, SNMP etc. and it can setup the network
etc. Furthermore possible to use TamperIE.
- Inspection PC is a PC with network terminal
operated on Windows XP SP2, and is connected to
MFP with cross-cable to perform penetration tests.
- Explanation of test tools. (Plug-in and vulnerability
database are applied the latest version on Aug. 31,
2009.)
(1)snmpwalk Version 3.6.1
MIB information acquiring tool
(2)openSSL Version 0.9.8k (25-May-2009)
encryption too of SSL and hash function
(3)Nessus 4.0.0 build 4G1002_Q
Security scanner to inspect the vulnerability
existing on the System
(4)TamperIE 1.0.1.13
Web proxy tool to tamper the transmitted data
from general Web browser such as Internet
Explorer to arbitrary data.
(5)sslproxy v 1.2
SSL proxy server software
(6)Fiddler 2.2.2.0
Web debugger to monitor HTTP operation
(7)Wireshark 1.2.0
Packet analyzer software that can parse protocols
more than 800.
(8)Nikto Version 2.03
CGI and publicly known vulnerability inspection
tool
<Concerned vulnerabilities and Test outline>
The concerned vulnerabilities and the corresponding tests outline are shown in
Table 3-4.
Table 3-4 Concerned vulnerabilities and Overview of Testing
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Overview of Testing
Concerned
vulnerabilities
(1) Vulnerability
(2) Vulnerability
(3) Vulnerability
(4) Vulnerability
(5) Vulnerability
(6) Vulnerability
(7) Vulnerability
Tests were performed to confirm possibility of abusing
by using the tool such as Nessus and behavior
inspection.
Tests were performed to confirm possibility of abusing
by using the tool such as Nessus and result analysis.
Tests were performed to confirm that there is no
influence
on
the
security
behavior
(domain
separation, by-pass, interference and etc.) by
transmitting of edited parameters through network.
Tests were performed to confirm that the mechanism
for holding session has a unique identification.
Tests were performed to confirm that the forced power
ON/OFF does not affect the security function of
initialization process, screen display and etc.
Tests were performed to confirm the exclusive control
being done by the access from operational panel and
network simultaneously.
Tests were performed to confirm that the setting state
of encryption passphrase does not affect the behavior
of the security function.
c. Result
In the conducted evaluator penetration tests, the exploitable vulnerability that
attackers who have the assumed attack potential could not be found.
3.4 Evaluation Result
3.4.1 Evaluation Result
The evaluator had the conclusion that the TOE satisfies all work units prescribed in
CEM by submitting the Evaluation Technical Report.
3.4.2 Evaluator comments/Recommendations
Especially, none comments.
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4. Conduct of Certification
The certification body conducted the following certification based on each materials
submitted by evaluation facility during evaluation process.
1. Contents pointed out in the Observation Report shall be adequate.
2. Contents pointed out in the Observation Report shall properly be reflected.
3. Evidential materials submitted were sampled, its contents were examined, and
related work units shall be evaluated as presented in the Evaluation Technical
Report.
4. Rationale of 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.
26
CRP-C0240-01
5. Conclusion
5.1 Certification Result
The Certification Body verified the Evaluation Technical Report, the Observation
Report and the related evaluation evidential materials submitted and confirmed that
all evaluator action elements required in CC Part 3 are conducted appropriately to the
TOE. The Certification Body determined the TOE is satisfied the assurance
requirements of EAL 3 prescribed in CC Part 3.
5.2 Recommendations
-If the external server authentication method is selected as for the user authentication
function, the external server authentication method using Active Directory is required
and TOE accepts the identification and authentication information managed with
Active Directory that is outside of TOE with assuming that it is correct and, operates.
- If FAX unit which is option is not installed, FAX unit control function that is security
function is unnecessary, but it does not affect the operation of other security functions.
27
CRP-C0240-01
6. Glossary
The abbreviations relating to CC used in this report are listed below.
CC:
Common Criteria
Evaluation
for
Information
CEM:
Common Methodology
Evaluation
EAL:
Evaluation Assurance Level
PP:
Protection Profile
ST:
Security Target
TOE:
Target of Evaluation
TSF:
TOE Security Functions
for
Information
Technology
Technology
The abbreviations relating to TOE used in this report are listed below.
API:
Application Programming Interface
DNS:
Domain Name System
FTP:
File Transfer Protocol
HDD:
Hard Disk Drive
HTTPS
HyperText Transfer Protocol Security
MFP
Multiple Function Peripheral
MIB
Management Information Base
NVRAM
Non-Volatile Random Access Memory
RAM
Random Access memory
SMB
Server Message Block
SMTP
Simple Mail Transfer Protocol
SNMP
Simple Network Management Protocol
SSL/TLS
Secure Socket Layer/Transport Layer Security
S/MIME
Secure Multipurpose Internet Mail Extensions
TSI
Transmitting Subscriber Identification
USB
Universal Serial Bus
28
Security
Security
CRP-C0240-01
WebDAV
Web-based Distributed Authoring and Versioning
The definition of terms used in this report is listed below.
DNS
Protocol to manage the relationship of the domain name and IP
address in the internet
FTP
File Transfer Protocol used at TCP/IP network.
HTTPS
Protocol adding with the encryption function of SSL to hold a secure
communication between Web server and client PC
MIB
Various setting information that the various devices managed using
SNMP opened publicly
NVRAM
Random access memory that has a non-volatile and memory keeping
character at the power OFF
PageScope Web Connection
Tool installed in the MFP to confirm and set the MFP state by using
browser
PC-FAX operation
Operation to process sorting the received image data into storage
user boxes based on the information specified at the FAX receiving
SMB
Protocol to realize the sharing of files and printers on Windows
SMTP
Protocol to transfer e-mail in TCP/IP
SNMP
Protocol to manage various devices through network
SNMP password
Generic term of password (Privacy password, Authentication
password) to confirm the user at the use of SNMP v3 in TOE
SSL/TLS
Protocol to transmit encrypted data through the Internet
S/MIME
Standard of e-mail encryption method
Transmitting the encrypted message using RSA public key
cryptosystem and needs electric certificate published from
certification organization
TSI reception Function to designate the storing user box for each sender
WebDAV
Protocol to manage files
specification of HTTP1.1
on
the
Web
server
with
expanded
Encryption passphrase
Original information to generate the encryption key to encrypt and
decrypt on ASIC
Intra-office LAN
Network connected TOE and being secured by using switching hub
and eavesdropping detection device in the office environment, also
being securely connected to the external network through firewall
29
CRP-C0240-01
Administrator mode
State possible for administrator to conduct the permitted operation
to the MFP
External network
Access restricted Network from TOE connected intra-office LAN by
firewall or other
Service Mode
State possible for service engineer to conduct the permitted operation
to the MFP
Secure Print password
Password to confirm whether permitted user or not before the
operation to the secure print file
Secure Print file
Image file registered by secure print
Secure Print
Printing method that restricts by the password authentication.
Specify the password by the printer driver and printing by MFP is
allowed only when that password is authenticated.
Flash Memory
Memory device that performs the high speed and high integration of
EEPROM and carries the batch deletion mechanism
User Box file
Image file stored in the user box, public box and group box.
30
CRP-C0240-01
7. Bibliography
[1]
bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360 / ineo + 280 / ineo + 220 /
VarioLink 3622c / VarioLink 2822c / VarioLink 2222c Control Software
A0ED0Y0-0100-GM0-12 Security Target Version 1.05
(Nov, 10, 2009) Konica Minolta Business Technologies, Inc.
[2]
IT Security Evaluation and Certification Scheme, May 2007,
Information-technology Promotion Agency, Japan CCS-01
[3]
IT Security Certification Procedure, May 2007,
Information-technology Promotion Agency, Japan CCM-02
[4]
Evaluation Facility Approval Procedure, May 2007,
Information-technology Promotion Agency, Japan CCM-03
[5]
Common Criteria for Information Technology Security Evaluation Part 1:
Introduction and general model Version 3.1 Revision 1, September 2006,
CCMB-2006-09-001
[6]
Common Criteria for Information Technology Security Evaluation Part 2:
Security functional requirements Version 3.1 Revision 2, September 2007,
CCMB-2007-09-002
[7]
Common Criteria for Information Technology Security Evaluation Part 3:
Security assurance requirements Version 3.1 Revision 2, September 2007,
CCMB-2007-09-003
[8]
Common Criteria for Information Technology Security Evaluation Part 1:
Introduction and general model Version 3.1 Revision 1, September 2006,
CCMB-2006-09-001 (Translation Version 1.2, March 2007)
[9]
Common Criteria for Information Technology Security Evaluation Part 2:
Security functional requirements Version 3.1 Revision 2, September 2007,
CCMB-2007-09-002 (Translation Version 2.0, March 2008)
[10]
Common Criteria for Information Technology Security Evaluation Part 3:
Security assurance requirements Version 3.1 Revision 2, September 2007,
CCMB-2007-09-003 (Translation Version 2.0, March 2008)
[11]
Common Methodology for Information Technology Security Evaluation:
Evaluation Methodology Version 3.1 Revision 2, September 2007,
CCMB-2007-09-004
[12]
Common Methodology for Information Technology Security Evaluation:
Evaluation Methodology Version 3.1 Revision 2, September 2007,
CCMB-2007-09-004 (Translation Version 2.0, March 2008)
[13]
bizhub C360 / bizhub C280 / bizhub C220 / ineo + 360 / ineo + 280 / ineo + 220 /
VarioLink 3622c / VarioLink 2822c / VarioLink 2222c Zentai Seigyo Software
Evaluation Technical Report Version 2, Nov 16, 2009,
Mizuho Information & Research Institute, Inc. Center for Evaluation of
Information Security
31
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