Certification Report: c0148_erpt
CRP-C0148-01
Certification Report
Buheita Fujiwara, Chairman
Information-technology Promotion Agency, Japan
Target of Evaluation
Application date/ID
Certification No.
Sponsor
Name of TOE
2007-08-29 (ITC-7166)
C0148
Konica Minolta Business Technologies, Inc.
Japanese Name: bizhub C353P / ineo+ 353P Control
Software
English Name: bizhub C353P / ineo+ 353P Control
Software
Version of TOE
PP Conformance
Conformed Claim
Developer
Evaluation Facility
A02E0Y0-0100-GM0-12
None
EAL3
Konica Minolta Business Technologies, Inc.
Mizuho Information & Research Institute,
Center for Evaluation of Information Security
Inc.
This is to report that the evaluation result for the above TOE is certified as
follows.
2008-03-26
Hideji Suzuki, 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 2.3
(ISO/IEC 15408:2005)
- Common Methodology for Information Technology Security Evaluation
Version 2.3 (ISO/IEC 18045:2005)
Evaluation Result: Pass
“Japanese Name: bizhub C353P / ineo+ 353P Control Software
English Name:
bizhub C353P / ineo+ 353P Control Software” has been evaluated in accordance
CRP-C0148-01
with
the
provision
of
the
“IT
Security
Certification
Procedure”
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.
CRP-C0148-01
Table of Contents
1. Executive Summary ........................................................................................... 1
1.1 Introduction ................................................................................................. 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 Overview of Operation ............................................... 2
1.2.4 TOE Functionality.................................................................................. 4
1.3 Conduct of Evaluation .................................................................................. 6
1.4 Certificate of Evaluation .............................................................................. 7
1.5 Overview of Report ....................................................................................... 7
1.5.1 PP Conformance ..................................................................................... 7
1.5.2 EAL........................................................................................................ 7
1.5.3 SOF ........................................................................................................ 7
1.5.4 Security Functions ................................................................................. 8
1.5.5 Threat .................................................................................................. 17
1.5.6 Organisational Security Policy ............................................................. 19
1.5.7 Configuration Requirements................................................................. 19
1.5.8 Assumptions for Operational Environment ........................................... 19
1.5.9 Documents Attached to Product ............................................................ 20
2. Conduct and Results of Evaluation by Evaluation Facility............................... 21
2.1 Evaluation Methods.................................................................................... 21
2.2 Overview of Evaluation Conducted ............................................................. 21
2.3 Product Testing .......................................................................................... 21
2.3.1 Developer Testing ................................................................................. 21
2.3.2 Evaluator Testing ................................................................................. 24
2.4 Evaluation Result....................................................................................... 25
3. Conduct of Certification................................................................................... 26
4. Conclusion ....................................................................................................... 27
4.1 Certification Result .................................................................................... 27
4.2 Recommendations ....................................................................................... 27
5. Glossary .......................................................................................................... 28
6. Bibliography .................................................................................................... 30
CRP-C0148-01
1. Executive Summary
1.1 Introduction
This Certification Report describes the content of certification result in relation to
IT Security Evaluation of “Japanese Name:bizhub C353P / ineo+ 353P Control
Software
English Name:bizhub C353P / ineo+ 353P Control Software
Version:
A02E0Y0-0100-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..
The reader of the Certification Report is advised to read the corresponding ST and
manuals (please refer to “1.5.9 Documents Attached to Product” for further details)
attached to the TOE together with this report. The assumed environment,
corresponding security objectives, security functional and assurance requirements
needed for its implementation and their summary specifications are specifically
described in ST. The operational conditions and functional specifications are also
described in the document attached to the TOE.
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.
Note:
In this Certification Report, IT Security Evaluation Criteria and IT
Security Evaluation Method prescribed by IT Security Evaluation and
Certification Scheme are named CC and CEM, respectively.
1.2 Evaluated Product
1.2.1 Name of Product
The target product by this Certificate is as follows:
Name of Product: Japanese name:bizhub C353P / ineo+ 353P Seigyo Software
English name:bizhub C353P / ineo+ 353P Control Software
A02E0Y0-0100-GM0-12
Konica Minolta Business Technologies, Inc.
Version:
Developer:
1.2.2 Product Overview
This TOE is the embedded software that is installed on the Konica Minolta
Business
Technologies,
Inc.
network
printer
(bizhub
C353P
/
ineo+
353P)
(Hereinafter referred to as”printer”).
This TOE offers the protection from exposure of the highly confidential document
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stored in the printer. Moreover, TOE can encrypt the image data written in HDD for
the danger of taking HDD that is the medium that stores the image data in printer
out illegally by installing the encryption board which is the option parts of printer.
Besides, TOE has the deletion method to follow various overwrite deletion standards.
It deletes all the data of HDD completely and it contributes to the prevention of the
divulging information of the organization that uses printer by using the method at
the time of abandonment or the lease returns.
1.2.3 Scope of TOE and Overview of Operation
This TOE exists on the flash memory on the printer controller, which built in the
body of the printer, and is loaded on the RAM. Figure 1-1 shows the relationship
between this TOE and the printer. Shaded region on the figure 1-1 indicates the TOE
and “*” shows the option parts of printer.
Flash memory is the storage medium that stores the object code of the printer
Control Software that is TOE. It also stores the message data of each country’s
language to display the response accessed through the panel and network, OS
(VxWorks), and so on.
NVRAM is the nonvolatile memory that stores various setting values needed for the
operation of the printer used for processing of TOE. On the encryption board, the
hardware-based
cryptographic
function,
which
is
the
integrated
circuit
for
encryption, is installed in order to encipher all data to be written in HDD.
HDD is utilized besides the image data is stored as a file, temporarily image data
with such as extension conversion. As a feature function, the security function (HDD
lock function) is installed, being possible to set the password and not being possible
to read and write unless it agrees to the password.
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CRP-C0148-01
Printer
Printer Controller
RS-232C
Network
Unit
CPU
RAM
*Encryption
Board
TOE
Ethernet
*HDD
USB
NVRAM
Flash Memory
OS
Message Data
etc .
*Image
Controller
*FAX Unit
Public
line
Main/Sub
Power
Panel
Panel
Operator
Panel
Operator
Scan Unit
Auto Document
Feeder
Paper
Printer
Unit
Paper
Figure 1-1: Hardware structure that relates to TOE
Next, the logical structure of this TOE is shown. Network printer includes the
function that is not associated with the security directly such as basic function, user
choice function, and remote diagnosis function other than the function that is
indicated in “1.2.4 TOE functionality”.
Basic function is a print function and TOE performs the core control in the
operation of these functions.
Remote diagnosis function is used for managing the operation status of printer, and
the device information like the number of prints by using the methods for the
connection, such as the modem connection via a RS-232C and the E-Mail, etc, and
communicating with the support center of printer produced by Konica Minolta
business technologies, Inc.
Printer user who can use these functions uses each function that TOE provides, via
the panel or the network.
The roles of the person that relate to the use of the printer are defined as follows.
1) User
Printer user (In general, the employee in the office is assumed.)
2) Administrator
Printer's user who carries out the management of the operation of printer.
An administrator performs the operation management of printer and the
management of user. (In general, it is assumed that the person elected from
the employees in the office plays this role.)
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3) Service Engineer
A user who performs management of maintenance for the printer. Service
Engineer performs the repair and adjustment of printer. (In general, the
person in charge at the sales companies that performs the maintenance
service of printer and is in cooperation with Konica Minolta Business
Technologies, Inc. is assumed.)
4) Person in charge at the Organization that uses the printer
A person in charge at the organization that manages the office where the
printer is installed. This person assigns an administrator who carries out
the management of the operation of the printer.
5) Person in charge at the Organization that manages the Maintenance of the
printer
A person in charge at the organization that carries out management of the
maintenance for the printer. This person assigns service engineers who
perform the maintenance management for the printer.
Besides this, though not a user of TOE, a person who goes in and out in the office
are assumed as an accessible person to TOE.
1.2.4 TOE Functionality
This TOE has the following functions.
1) Secure Print Function
When the secure print password is received with the printing data, the image
data is stored as the standby status. And the print command and password input
from the panel allows printing.
2) User Box Function
The directory named a use box can be created as an area to store the image file
in HDD. Three types of user box exist; the first is the personal user box which a
user possesses, the second is the public user box which the registered user
making a group within a certain number uses jointly and the third is the group
box which the users belong to same account uses jointly.
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, the operation is limited only for the user who the use of the
account is permitted. This TOE treats the processing related to public user box
as an object of a security function in user box function.
TOE processes the operation for an operation requests that is transmitted
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from the panel or the network unit through a network from a client PC.
3) Administrator Function
TOE provides the functions such as the management of the user boxes, the
management of various settings of the network and image quality, and the
management of user information at the time of machine authentication in the
administrator mode that only authenticated administrator can operate. Also, it
offers the operation setting function related to the behavior of the other function.
It deletes the various setting values and the data stored by user.
4) 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.
5) Encryption key generation function
When the encryption board, an optional product, is installed in printer
controller, the encoding and decoding is processed on the encryption board due
to the reading and writing data in HDD. (TOE does not process the encryption
and description itself.)
The operation setting of this function is performed by the administrator
function. When it operates, TOE generates the encryption key by the encryption
passphrase that was entered on the panel.
6) HDD Lock Function
HDD has the HDD lock function as measure against the illegal taking out,
when the password is set. The access to HDD is permitted by the matching of the
HDD lock password set to the HDD and the one set on the printer. (Even if HDD
is taken out, it is impossible to use it excluding the printer that the concerned
HDD installed.)
7) Remote diagnostic function
Making use of several connected systems such as E-mail, and a modem
connection through a RS-232C, in communication with support center of printer
produced by Konica Minolta Business Technologies Inc., it manages the state
condition of printer and the machinery information such as count of printing. In
addition, if necessary, appropriate service (shipment of an additional toner, the
account claim, dispatch of the service engineer due to the failure diagnosis, etc.)
is provided.
8) Updating function of TOE
TOE facilitated with the function to update itself. As for the update means,
there are the methods executing in remote diagnostic function: a TOE update
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CRP-C0148-01
function via Internet, an update function from client PC, and a method that
performs the connection of the Compact Flash memory medium.
9) Encryption Communication Function
TOE can encrypt the data transmitted from PC to Printer by using SSL/TLS.
10) Setup function
It offers the function to setup by using the installed software dedicated to
perform on PC with connecting to client PC through Ethernet. Dedicated
installed software is used by service engineer and so it’s not offered to a user.
11) 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
1.3 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 C353P / ineo+ 353P Control
Software 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 B of
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CRP-C0148-01
CC Part 1 (either of [5], [8] or [11]) and
Functional Requirements of CC Part 2
(either of [6], [9] or [12]) 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], [10] or [13]) as its rationale. Such evaluation procedure and
its result are presented in “bizhub C353P / ineo+ 353P Control Software Evaluation
Technical Report” (hereinafter referred to as “the Evaluation Technical Report”) [17].
Further, evaluation methodology should comply with the CEM (either of [14], [15] or
[16]).
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. Certification review is also prepared for those concerns found in the
certification process. Evaluation is completed with the Evaluation Technical Report
on February 2008 submitted by the evaluation facility and those problems pointed
out by the Certification Body are fully resolved 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.
1.5 Overview of Report
1.5.1 PP Conformance
There is no PP to be conformed.
1.5.2 EAL
Evaluation Assurance Level of TOE defined by this ST is EAL3 conformance.
1.5.3 SOF
This ST claims “SOF-basic” as its minimum strength of function.
This TOE assumes the use in the general office environment that is protected from
the attack of the external network. The access via the panel or the internal network to
TOE is under the management by the administrator and does not assume the complex
attack. Therefore, it is reasonable to assume the attacking ability to attacker is
“low-level”.
Thus, it is adequate with the SOF-Basic.
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CRP-C0148-01
1.5.4 Security Functions
Security functions of the TOE are as follows.
1) F.ADMIN (Administrator Function)
F.ADMIN is a series of security function that administrator operates, such
as
an
administrator
identification
authentication
function
in
an
administrator mode accessing from a panel or through a network, and a
security management function that includes a change of an administrator
password and a lock cancellation of a locked user box.
a. Administrator Identification and Authentication Function
It identifies and authenticates the accessing user as the administrator
in response to the access to the administrator mode.
b. Function offered in Administrator Mode
When a user is identified and authenticated as an administrator by
the
administrator
identification
authentication
function
at
the
accessing request to the administrator mode, the administrator
authority is associated with the task substituting the user. And the
following operations and the use of the functions are permitted.
(1) Change of the administrator password
When a user is re-authenticated as an administrator by the panel,
and the new password satisfied the quality, the password is
changed.
It resets the number of authentication failure when succeeding in
the re-authentication.
It returns “*” for each character as feedback for the entered
administrator password in the re-authentication by the access from
the panel.
When the authentication failure that becomes 1-3 times at total in
each authentication function by using the administrator password
is detected, it logoffs the administrator mode accessing from the
panel, and locks all the authentication functions to use the
administrator password. (The access to the administrator mode is
refused.)
F.RESET works and the lock release function of the administrator
authentication function in F.SERVICE is carried out, and the lock
of authentication function is released.
(2)
User Box Settings
It registers as public user box by setting the user attributes to the
unregistered user box ID. It performs the setting and change of the
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user box password, and the change of the user attributes of the
user box. User box password is set with 8 digits by using ASCII
code (0x20~0x7E) (A total of 95 characters are selectable.)Also, it
shall not be composed of one kind of character.
(3)
Release of Lock
It resets (0 clear) the number of each secure prints, each user
boxes
and SNMP password. If access locked exists, the lock is
released.
(4)
Setting of unauthorized access detection threshold
The unauthorized access detection threshold in the authentication
operation prohibition function is set in the range for 1-3 times.
(5)
Setting and execution of all area overwrite deletion function
The deletion method shown in the table 1-1 is selected first, and
then the overwrite deletion at the data area of HDD and NVRAM.
(Perform F.OVERWRITE-ALL.)
Method
Mode:1
Mode:2
Mode:3
Mode:4
Mode:5
Mode:6
Mode:7
Mode:8
Overwritten data type and their order
0x00
Random numbers -> Random numbers -> 0x00
0x00 -> 0xFF -> Random numbers -> Verification
Random numbers -> 0x00 -> 0xFF
0x00 -> 0xFF -> 0x00 -> 0xFF
0x00 -> 0xFF -> 0x00 -> 0xFF -> 0x00 -> 0xFF -> Random numbers
0x00 -> 0xFF -> 0x00 -> 0xFF -> 0x00 -> 0xFF -> 0xAA
0x00 -> 0xFF -> 0x00 -> 0xFF -> 0x00 -> 0xFF -> 0xAA -> Verification
(6)
Network Settings
A setup operation of the following setting data is performed.
- A series of setup data that relates to printer address (IP
address, NetBIOS Name, AppleTalk Printer Name, etc.)
(7)
Execution of back-up and restoration function
All the setting data stored in NVRAM and HDD is backed-up
and re-stored except the administrator password and the CE
password.
(8)
Operation setting function of HDD lock function
When turning HDD lock function ON from OFF, it verifies that
the newly set HDD lock password satisfies the following
qualities.
Change the HDD lock password. By using the HDD lock
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CRP-C0148-01
password currently set, when it is re-authenticated as an
administrator, and the new password satisfies the quality, it is
changed.
HDD lock password is composed of 20-digits by using ASCII
code. (0x21 to 0x7E, except 0x22, 0x28, 0x29, 0x2C, 0x3A, 0x3B,
0x3C, 0x3E, 0x5B, 0x5C, and 0x5D)(A total of 83 characters are
selectable)
Return “*” for each character as feedback for the entered HDD
lock password in verification.
Also, it shall not be composed of one kind of character.
(9)
Operation setting of encryption function
When turning the encryption function ON from OFF, it verifies
that the encryption passphrase newly set satisfies the qualities,
and F.CRYPT is performed.
Change the encryption passphrase. By using the encryption
passphrase currently set, when it is re-authenticated as an
administrator, and the new encryption passphrase satisfies the
quality, it is changed and F.CRYPT is performed.
Encryption passphrase is composed of 20-digits by using ASCII
code. (0x21 to 0x7E, except 0x22, 0x28, 0x29, 0x2C, 0x3A, 0x3B,
0x3C, 0x3E, 0x5B, 0x5C, and 0x5D)(A total of 83 characters are
selectable)
Also, it shall not be composed of one kind of character, and it
must differ from the current password.
Return “*” for each character as feedback for the entered
encryption passphrase in verification.
(10)
Function related to Enhanced Security function
- Function to set valid or invalid of Enhanced Security function
- The settings of enhanced security function are invalidated by
executing the overwrite deletion of all area.
- Along with the execution of this logical format which is the
function to re-write system file of OS in HDD, the setting of
Enhanced Security function is invalidated.
- The setting of the Enhanced Security function is invalidated by
nullifying HDD installation setting.
(11) Change of SNMP password
Change
the
Authentication
SNMP
passwords
password),
10
and
(Privacy
verify
the
password
quality
of
and
new
CRP-C0148-01
password.
(12) Setting of SNMP password authentication function
The
authentication
method
in
the
SNMP
passwords
authentication function is set to “Only Authentication password”
or the “Authentication password and Privacy password.”
(13) Setting of Administrator Authentication Lock Time
Set the administrator authentication lock time between 5 - 60
minutes.
(14) Setting of Trusted Channel function
Set the setting data of the Trusted Channel function by SSL/TLS.
2) F.ADMIN-SNMP (SNMP Administrator Function)
F.ADMIN-SNMP is a security function, which identifies and authenticates
the administrator in the access through the network by using SNMP from
PC, and then permits the operation of a setting function of the network only
to
the
administrator
whose
identification
and
authentication
was
succeeded.
a. Identification and authentication function by SNMP password
It identifies and authenticates by the SNMP password, that the user
who accesses the MIB object through the network with the use of SNMP
is an administrator.
b. Management function using SNMP
When it is identified and authenticated that the user is an
administrator by the SNMP password, the access to the MIB object is
permitted, and then the operation of the setting data shown as
followings is permitted to be done.
(1) Network Settings
A series of setting data that relates to printer address (IP address,
NetBIOS name, AppleTalk printer name, etc.
(2) Change of SNMP password
SNMP password (Privacy password, Authentication password) is
changed. It verifies that SNMP password newly set is 8 digits or
more by using ASCII code (0x21-0x7E, except 0x5C).
(3) Setting of SNMP password authentication function
The authentication method in the SNMP password authentication
function
is
set
to
“Only
11
Authentication
password”
or
the
CRP-C0148-01
“Authentication password and Privacy password.”
3) F.SERVICE (Service mode function)
This is a series of security function that the service engineer operates,
such as the service engineer identification authentication function in
service mode accessing from the panel, and a security management function
that includes a change in the CE password and the administrator password.
a. Service engineer identification authentication function
It identifies and authenticates the accessing user as the service
engineer in response to the access request to the service mode from the
panel.
b. Function offered in service mode
When a user is identified and authenticated as a service engineer by
the service engineer identification authentication function at the access
request to the service mode, the use of the following functions is
permitted.
(1) Change of CE password
When a user is re-authentication as a service engineer and the
new password satisfies the quality, it is changed.
CE password is composed of 8-digits by using ASCII code.(0x21 to
0x7E, except 0x22 and 0x2B)Also, it shall not be composed of all
the same character. Reset the number of authentication failure
when succeeding in the re-authentication.
Return “*” for each character as feedback for the entered CE
password.
When the authentication failure that becomes 1-3 times at total in
each authentication function by using the CE password is detected,
it logoffs the service mode accessed from the panel, and locks all
the authentication functions to use the CE password. (The access to
the service mode is refused.)
(2) Change of administrator password
Change
the
administrator
password.
It
verifies
that
the
administrator password newly set satisfies the following qualities.
-
It is composed of 8 digits by using ASCII code (0x21 - 0x7E,
except 0x22 and 0x2B). Also, it shall not be composed of one
kind of character.
-
It shall not be matched with the current value.
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(3) Function that relates to Enhanced Security function
The following functions are offered.
- HDD logical format function
The function to re-write system file of OS in HDD. The setting
of the Enhanced Security function is invalidated along with
the execution of this logical format.
- HDD physical format function
The function to rewrite the entire disk in HDD with a
regulated pattern including the signal rows such as the track
and sector information. The setting of the Enhanced Security
function is invalidated along with the execution of this
Physical format.
- HDD installation setting function
The function to make the installed HDD effective. The setting
of the Enhanced Security function is invalidated by nullifying
this HDD installation setting.
- Initialization function
Function to reset every setting value written in NVRAM to
the factory default. The setting of the Enhanced Security
function
is
invalidated
by
executing
this
initialization
function.
(4) Function that relates to password initialization function
The following functions are offered.
- Initialization function
Function to reset various setting values written in
NVRAM to the factory default.
- HDD physical format function
The function to rewrite the entire disk in HDD with a
regulated pattern including the signal rows such as the
track and sector information.
(5) Release of the lock of the Administrator authentication function
Resets (0 clear) the number of authentication failure for the
Administrator. If access is locked, the lock is released.
(6) Setting of the CE authentication lock time
Set the CE authentication Lock Time between 5 - 60 minutes.
(7) Operation Setting function of Setup function
Set whether the Setup function is used or not.
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4)
F.BOX (Public User Box Function)
This is a series of security function related to the public user box, such as
the authentication to the user who is permitted the utilization of the user
box in the access to the pubic box, and the access control function to permit
various operations of the concerned user box and the user box file after the
authentication.
a. Registration of user box by user operation
By selecting the user attribute to the “Public” to the non-registration
user box ID selected, this registers a pubic user box.
b. Public User Box Function
(1) Authentication function in access to a public user box
For the access request for each public user box, the user who
accesses is authenticated that it is a user permitted the use of a
public user box concerned respectively. When the authentication
failure that becomes the 1-3 times in total is detected for the public
user box concerned, the authentication function to the public user
box concerned is locked. The administrator specifies the failure
count threshold by the unauthorized access detection threshold
setting function. The lock of the authentication function is released
by the lock release function to the public user box of F.ADMIN
executed.
(2) Access control to a user box and a user box file in a public user box
The task to act for the user is related the "User Box ID" of the user
box as a user box attribute. This task is permitted the user box file,
which have a corresponding user box attribute to the user box
attribute of the subject attribute, to do the printing, the movement
to other user boxes, and the copy operations to other user boxes.
(3) Change of a public user box password
Change the user box password of the public user box. When the
user box password newly set satisfies the regulated qualities, it is
changed.
5)
F.PRINT (Secure Print Function)
F.PRINT is a series of security function related to the secure print such as
the access control function that allows the printing the secure print file
after authenticating if a user is the authorized user to use the secure print
file for the access to the secure print file from the panel.
a. Authentication function by the secure print password
14
CRP-C0148-01
For the access request for each secure print file, the user who access is
authenticated that it is a user permitted the use of a secure print file
concerned.
The secure print authentication mechanism by the separate session
information is not needed because it becomes only an access from the
panel in the case of the secure print.
Return “*" for each character as feedback for the entered secure print
password.
Resets the number of authentication failure when succeeding in the
authentication. The access from the panel is not accepted for 5 seconds
when the authentication is failed. When the authentication failure that
becomes the 1-3 times in total for the secure print file concerned is
detected, the authentication function to the secure print file is locked.
The administrator specifies the failure count threshold by the
unauthorized access detection threshold setting function. The lock is
released by the lock release function to the secure print file of F.ADMIN
executed.
b. Access control function to secure print file
The secure print file access control operates when it is authenticated.
The task to act for the user who is identified and authenticated has
the secure print internal control ID of the authenticated secure print
file for the file attribute.
This task is permitted the printing to the secure print file with a
corresponding file attribute to the file attribute of this task.
c. Registration function of a secure print file
For the registration request of the secure print file, the registration of
the secure print password with the concerned secure print file.
(1) Registration of the secure print password
It verifies that the registered security print password satisfies the
quality of the specified password.
(2) Giving of the secure print internal control ID
For the registration request of secure print file, when the
verification of the secure print password is completed, the secure
print internal control ID uniquely identified is set to the concerned
secure print file.
6) F.OVERWRITE-ALL (All area overwrite deletion function)
F.OVERWRITE-ALL executes the overwrite deletion in the data area of
15
CRP-C0148-01
HDD and initializes the setting value of the password that is set to NVRAM
as well.
The deletion methods such as the data written in HDD and the written
count is executed according to the deletion method of all area overwrite
deletion function set in F.ADMIN. The HDD lock password and the
encryption passphrase cannot be used for being turned off the operation
setting of the HDD lock function and the encryption function. The setting
of the Enhanced Security function becomes invalid in the execution of
this function.
7) F.CRYPTO (Encryption key generation function)
This generates the encryption key to encrypt all data written in HDD by
using KonicaMinolta HDD encryption key generation algorithm (SHA-1)
that is regulated by the KonicaMinolta encryption specification standard.
KonicaMinolta HDD encryption key generation algorithm (SHA-1) is the
algorithm to generate the encryption key by using the SHA-1 regulated by
FIPS 180-1.
When the encryption passphrase is decided in the encryption functional
operation setting to which the access is restricted in F.ADMIN, the
encryption key of 128bit length is generated from the encryption passphrase
by applying the SHA-1 algorithm.
8) F.HDD (HDD verification function)
This is a check function to permit reading from and writing in the HDD
only when it is verified that the illegal HDD is not installed and is
confirmed validity when the HDD lock password is set to HDD.
When the HDD lock password is set to HDD, the status of HDD is
confirmed in the HDD operation verifying at the time of TOE starting. As a
result of status check, when the HDD lock password certainly being set is
returned as the result of status confirmation, the access to HDD is
permitted. If the HDD lock password not being set is returned, the access to
HDD is refused because of an illegitimate possibility.
9) F.RESET (Authentication Failure Count Reset Function)
This is a function to release the lock by resetting the authentication failure
count when the account locks in the administrator authentication and CE
authentication.
The administrator authentication function lock release is executed by
turning OFF and ON of the main power supply, and the lock is released
16
CRP-C0148-01
after
the
administrator
authentication
lock
release
time.
The
CE
certificates function lock release is executed by the specific operation, and
the lock is released after CE certificates lock release time.
10) F.TRUSTED-PASS (Trusted Channel Function)
This is a function that generates and achieves the Trusted Channel by
using SSL or TSL protocol when transmitting and receiving the following
image file between PC and Printer.
- Image file that is stored as a user box file (upload from PC to Printer)
- Image file that is stored as Secure Print file (upload from PC to Printer)
1.5.5 Threat
This TOE assumes such threats presented in Table 1-1 and provides functions for
countermeasure to them.
Table 1-1 Assumed Threats
Identifier
T.DISCARD-Printer
T.BRING-OUT-STORAGE
T.ACCESS-PUBLIC-BOX
T.ACCESS-SECURE-PRINT
Threat
- When the leaser returned or the discarded
printer were collected, secure print file, a user
box file, on memory image file, the stored image
file, the remaining image file, the image-related
file and the set various passwords can leak by
the person with malicious intent taking out and
analyzing an HDD in Printer.
- A secure print file, a user box file, a on memory
image file, a stored image file, a remaining
image file, an image-related file and the setup
various passwords can leak by a person or a
user with malicious intent illegally taking out
and analyzing an HDD in Printer.
A person or a user with malicious intent
illegally replaces as HDD in Printer. In the
replaced HDD, new files of the secure print file,
a user box file, on memory image file, a stored
image file, a remaining image file, an image
related file, a transmission address data file
and set various passwords are accumulated. A
person or a user with malicious intent takes out
and analyzes the replaced HDD and image files
leak.
- Exposure of the user box file when a person or
the user with malicious intent accesses the
public user box which is not permitted to use,
and prints and removes and copies to the other
user box the user box file.
- Exposure of the secure print file when a person
or the user with malicious intent prints the
secure print file which is not permitted to use.
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CRP-C0148-01
T.ACCESS-NET-SETTING
-
T.ACCESS-SETTING
-
T.BACKUP-RESTORE
-
T.DISCARD-Printer
-
T.BRING-OUT-STORAGE
-
-
Malicious person or user changes the network
setting which set in Printer to identify Printer
itself where TOE installed, by setting to the
value of the entity such as another illegal
Printer from the value of Printer (NetBIOS
name, AppleTalk printer name, IP address, etc)
that TOE is originally installed, so that secure
print file is exposed.
The possibility of leaking user box file and
secure print file rises because malicious person
or user changes the settings related to the
enhanced security function.
The user box file and the secure print file can
leak by malicious person or user using the
backup function and the restoration function
illegally. Also, highly confidential data such as
password can be exposed and each setting
values are falsified.
When the leaser returned or the discarded
printer were collected, secure print file, a user
box file, on memory image file, the stored image
file, the remaining image file, the image-related
file and the set various passwords can leak by
the person with malicious intent taking out and
analyzing an HDD in Printer.
A secure print file, a user box file, a on memory
image file, a stored image file, a remaining
image file, an image-related file and the setup
various passwords can leak by a person or a
user with malicious intent illegally taking out
and analyzing an HDD in Printer.
A person or a user with malicious intent
illegally replaces as HDD in Printer. In the
replaced HDD, new files of the secure print file,
a user box file, on memory image file, a stored
image file, a remaining image file, an image
related file, a transmission address data file
and set various passwords are accumulated. A
person or a user with malicious intent takes out
and analyzes the replaced HDD and image files
leak.
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CRP-C0148-01
1.5.6 Organisational Security Policy
Organisational security policy required in use of the TOE is presented in Table 1-2.
Table 1-2 Organisational Security Policy
Identifier
Organisational Security Policy
P.COMMUNICATION-
The highly confidential image file (Secure Print
file, User box file) which transmitted or received
DATA
between IT equipments is communicated via
trusted pass to the correct destination, or has to
be encrypted.
1.5.7 Configuration Requirements
The TOE operates on the bizhub C353P / ineo+ 353P which is the network printer
provided by the Konica Minolta Business Technologies, Inc. The Encryption board is
option parts and is not equipped as a standard. When the encryption board is not
installed, the function that relates to the encryption cannot be used.
1.5.8 Assumptions for Operational Environment
Assumptions required in environment using this TOE presents in the Table 1-3.
The effective performance of the TOE security functions are not assured unless these
preconditions are satisfied.
Table 1-3 Assumptions in Use of the TOE
Identifier
A.ADMIN
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
-
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.NETWORK
-
The intra-office LAN where the printer with
the TOE will be installed is not intercepted.
-
When the intra-office LAN where the printer
with the TOE will be installed is connected to
an external network, access from the external
network to the printer is not allowed.
A.SECRET
-
Each password and encryption passphrase does
19
CRP-C0148-01
not leak from each user in the use of TOE.
A.SETTING
-
Printer with the TOE is used after enabling the
enhanced security function.
1.5.9 Documents Attached to Product
Documents attached to the TOE are listed below.
<Document for administrator / general user>
1) bizhub C353P User ’s Guide Security Operations (Ver.:1.02)(Japanese)
2) bizhub C353P User ’s Guide [Security Operations] (Ver.1.02)(English)
3) ineo + 353P User ’s Guide [Security Operations] (Ver.1.02) (English)
<Document for service engineer>
1) bizhub C353P Service Manual Security Function (Ver. 1.01) (Japanese)
2) bizhub C353P / ineo + 353P Service Manual Security Function (Ver. 1.01)
(English)
20
CRP-C0148-01
2. Conduct and Results of Evaluation by Evaluation Facility
2.1 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 report 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.
2.2 Overview of Evaluation Conducted
The history of evaluation conducted was present in the Evaluation Technical Report
as follows.
Evaluation has started from August, 2008 and concluded by completion the
Evaluation Technical Report on February 2008. 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 December 2007 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 September 2007.
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.
As for concerns indicated during evaluation process by the Certification Body, the
certification review was sent to the evaluation facility. These were reflected to
evaluation after investigation conducted by the evaluation facility and the
developer.
2.3 Product Testing
Overview of developer testing evaluated by evaluator and evaluator testing
conducted by evaluator are as follows.
2.3.1 Developer Testing
1) Developer Test Environment
Figure 2-1 shows the test configurations used by the developer.
21
CRP-C0148-01
Figure 2-1 Configuration of Developer Testing
2) Outlining of Developer Testing
Outlining of the testing performed by the developer is as follow.
a. Test configuration
The configurations of the tests performed by the developer are shown in
Figure 2-1. Developer testing is performed at the same TOE testing
environment with the TOE configuration identified in ST.
b. Testing Approach
For the testing, following approach was used.
(1) About the behavior of TSF related to the operation panel, confirm the
behavior of the security function by the observing the operation for the
operation panel and the display of the operation panel.
(2) About the behavior of TSF related to the power supply OFF and ON,
confirm the operational change of the result after having turned off the
22
CRP-C0148-01
power supply of MFP and on with the operation panel (or through
Network).
(3) About the behavior of TSF related to a network, confirm the behavior of
the security function by observing the operation on the PC screen and by
transmitting and receiving the test data of each protocol with connection
to TOE from an application of PSWC, etc. or from a test tool using various
protocols.
(4) About the behavior of the function related to the Enhanced Security
Function (HDD logical format function, HDD physical format function,
HDD installation setting function, Initialization function), confirm that
these functions are restricted to a service engineer and an administrator
(some of the functions). Also, after executing these functions, it is
confirmed in the test process that the panel display of the icon which
shows the Enhanced Security Setting ON disappears and that the value
which each function makes applicable to initialization in an initialization
state.
(5) In the developer testing, the change of the setting value, authentication
method and the check of the access control to the security function are
confirmed the output message, etc by using the external interface (the
operation panel, the power supply OFF and ON and a network) by visual
check.
-
As for the security function that cannot be verified by using these
external interfaces, confirm that the behavior is proper by performing
the individual test approach.
c. Scope of Testing Performed
Testing is performed about 87 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 high-level design
and the subsystem interfaces.
d. 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.
23
CRP-C0148-01
2.3.2 Evaluator Testing
1) Evaluator Test Environment
The evaluator used test configuration that are identical to those used by the
developer.
2) Outlining of Evaluator Testing
Outlining of testing performed by the evaluator is as follow.
a. Test configuration
The configuration of the tests performed by the evaluator is shown in
figure 2-1. The evaluator tests were performed in TOE test environment
identical to the TOE configuration identified by ST.
b. Testing Approach
For the testing, the following approach was used.
(1) About the behavior of TSF related to the operation panel, confirm the
behavior of the security function by the observing the operation for the
operation panel and the display of the operation panel.
(2) About the behavior of TSF related to the power supply OFF and ON,
confirm the operational change of the result after having turned off the
power supply of MFP and on with the operation panel (or through
Network).
(3)
About the behavior of TSF related to a network, confirm the behavior
of the security function by connecting to TOE from PSWC or a test tool
using various protocols, by operating and observing on the WEB screen
for PSWC, and by transmitting and receiving the test data of each
protocol.
(4) About the behavior of the function related to the Enhanced Security
Function (HDD logical format function, HDD physical format function,
HDD installation setting function, Initialization function), confirm that
these functions are restricted to a service engineer and an administrator
(some of the functions), and that the panel display of the icon which
shows the Enhanced Security Setting ON is disappeared and the value
which
each
function
makes
applicable
to
initialization
is
in
an
initialization state after executing these functions.
(5) In the developer testing, the change of the setting value, authentication
method and the check of the access control to the security function are
confirmed the output message, etc by using the external interface (the
operation panel, the power supply OFF and ON and a network) by visual
check.
24
CRP-C0148-01
(6) As for the security function that cannot be verified by using these
external interfaces, confirm that the behavior is proper by performing
the individual test approach.
c. Scope of Testing Performed
The evaluator performed 50 tests in total: 29 independent test and 21
sampled developer tests. As the selection criteria of the test, followings take
into account.
(1) Security function that is suspected to operate along the specifications
by the developer test.
(2) At the start of TSFI (operation panel, network, (PSWC, TCP, Socket
OpenAPI and SNMP, etc.)), confirm the behavior by the difference of
password enter method in the probabilistic / permutational mechanism
test.
(3) Security function set as the object of strength of function
(4)
All
subsystems
SS-CommonAPI,
that
offer
SS-Image,
the
security
SS-PCPrint,
function
SSPSWC,
(SS-Panel,
SSMIB,
SS-OpenAPI, SS-TCPSocket and SS-MIO) are objects to test it without
deflection in a subsystem.
d. Result
All evaluator testing conducted is completes correctly and could confirm
the behavior of the TOE. The evaluator also confirmed that all the test
results are consistent with the behavior.
2.4 Evaluation Result
The evaluator had the conclusion that the TOE satisfies all work units prescribed
in CEM by submitting the Evaluation Technical Report.
25
CRP-C0148-01
3. Conduct of Certification
The following certification was conducted 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.
Concerns found in certification process were prepared as certification review, which
were sent to evaluation facility.
The Certification Body confirmed such concerns pointed out in Observation Report
and certification review were solved in the ST and the Evaluation Technical Report.
26
CRP-C0148-01
4. Conclusion
4.1 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 verified the TOE is satisfied the EAL3 assurance
requirements prescribed in CC Part 3.
4.2 Recommendations
None
27
CRP-C0148-01
5. Glossary
The abbreviations used in this report are listed below.
CC
Common
Criteria
for
Information
Technology
Security Evaluation
CEM
Common Methodology for Information Technology
Security Evaluation
EAL
Evaluation Assurance Level
PP
Protection Profile
SOF
Strength of Function
ST
Security Target
TOE
Target of Evaluation
TSF
TOE Security Functions
The abbreviations peculiar to TOE used in this report are listed below.
DNS
Domain Name System
FTP
File Transfer Protocol
HDD
Hard Disk Drive
IP
Internet Protocol
LAN
Local Area Network
MFP
Multiple Function Peripheral
NVRAM
Non-Volatile Random Access Memory
SMTP
Simple Mail Transfer Protocol
SNMP
Simple Network Management Protocol
SSL
Secure Socket Layer
USB
Universal Serial Bus
28
CRP-C0148-01
The glossaries used in this report are listed below.
CE password
Printer Address
Printer Controller
Account Lock
Kind of password collating when entering the service
mode
Generation terms, such as an IP address of Printer set up
by the network setting function in administrator
maintenance mode from the operation panel of Printer.
Controller that controls all the operation of Printer
including the operation control process received from the
network or the Printer panel and the management of
image data. TOE is the software that operates on that
controller.
Unable to perform continuous password authentication
when the operation of password authentication is failed
consecutively, or its situation.
Service Mode
Operation panel screen area which can operate MFP
function that is prepared for the service engineer.
Service Engineer
A user who performs the management of maintenance for
the printer. Performs the repair and adjustment of
Printer. In general, it is the person in charge at the sales
companies or agencies that performs the maintenance
service of MFP and that is in cooperation with Konica
Minolta Business Technologies, Inc.
File that remains in the HDD data area. It is the image
file that cannot be deleted by general deletion operation.
Remaining Image
File
Secure Print
Flash Memory
User Box
This is the printing method that restricts by the
password authentication. Specify the password by the
printer driver and printing by Printer is allowed only
when that password is authenticated.
Memory device that performs the high speed and high
integration of EEPROM and carried the batch deletion
mechanism.
Directory that is created in the HDD area in order to
store the image files in the MFP.
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CRP-C0148-01
6. Bibliography
[1]
bizhub C353P / ineo+ 353P Control Software Security Target Version 1.06
(January 18th, 2008) KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
[2]
IT
Security
Evaluation
and
Certification
Scheme,
Information-technology Promotion Agency, Japan CCS-01
[3]
IT Security Certification Procedure,
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 2.3 August 2005 CCMB-2005-08-001
[6]
Common Criteria for Information Technology Security Evaluation Part 2:
Security functional requirements Version 2.3 August 2005 CCMB-2005-08-002
[7]
Common Criteria for Information Technology Security Evaluation Part 3:
Security assurance requirements Version 2.3 August 2005 CCMB-2005-08-003
[8]
Common Criteria for Information Technology Security Evaluation Part 1:
Introduction and general model Version 2.3 August 2005 CCMB-2005-08-001
(Translation Version 1.0 December 2005)
[9]
Common Criteria for Information Technology Security Evaluation Part 2:
Security functional requirements Version 2.3 August 2005 CCMB-2005-08-002
(Translation Version 1.0 December 2005)
[10]
Common Criteria for Information Technology Security Evaluation Part 3:
Security assurance requirements Version 2.3 August 2005 CCMB-2005-08-003
(Translation Version 1.0 December 2005)
[11]
ISO/IEC 15408-1:2005 - Information Technology - Security techniques
Evaluation criteria for IT security - Part 1: Introduction and general model
-
[12]
ISO/IEC 15408-2:2005 - Information technology - Security techniques
Evaluation criteria for IT security - Part 2: Security functional requirements
-
[13]
ISO/IEC 15408-3:2005 - Information technology - Security techniques
Evaluation criteria for IT security - Part 3: Security assurance requirements
-
[14]
Common Methodology for Information Technology Security Evaluation:
Evaluation Methodology Version 2.3 August 2005 CCMB-2005-08-004
[15]
Common Methodology for Information Technology Security Evaluation:
Evaluation Methodology Version 2.3 August 2005 CCMB-2005-08-004
(Translation Version 1.0 December 2005)
[16]
ISO/IEC 18045:2005 Information technology - Security techniques - Methodology
for IT security evaluation
30
May
2007,
May
2007,
Information-technology
CRP-C0148-01
[17]
bizhub C353P / ineo+ 353P Control Software Evaluation Technical Report,
February 26th, 2008, Mizuho Information & Research Institute, Inc. Center for
Evaluation of Information Security
31
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