Ricoh Aficio MP 3352 Security Target - Page 72

O.PROT.NO_ALT Protection of TSF protected data alteration, O.CONF.NO_DIS Protection of TSF

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Page 71 of 91 (3) Management of the security attributes. FMT_MSA.1(a) restricts each available operation (newly create, query, modify and delete) for the login user name to specified users only. FMT_MSA.3(a) sets the restrictive value to the security attributes of user jobs (object) when the user jobs are generated. By satisfying FDP_ACC.1(a), FDP_ACF.1(a), FTP_ITC.1, FMT_MSA.1(a) and FMT_MSA.3(a), which are the security functional requirements for these countermeasures, O.FUNC.NO_ALT is fulfilled. O.PROT.NO_ALT Protection of TSF protected data alteration O.PROT.NO_ALT is the security objective to allow only users who can maintain the security to alter the TSF protected data. To fulfil this security objective, it is required to implement the following countermeasures. (1) Management of the TSF protected data. By FMT_MTD.1, only the MFP administrator is allowed to manage the date, time, S/MIME user information, destination folder and users for stored and received documents. (2) Specification of the Management Function. FMT_SMF.1 performs the required Management Functions for Security Function. (3) Specification of the roles. FMT_SMR.1 maintains the users who have the privileges. (4) Use trusted channels for sending or receiving the TSF protected data. The TSF protected data sent and received by the TOE via the LAN are protected by FTP_ITC.1. By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional requirements for these countermeasures, O.PROT.NO_ALT is fulfilled. O.CONF.NO_DIS Protection of TSF confidential data disclosure O.CONF.NO_DIS is the security objective to allow only users who can maintain the security to disclose the TSF confidential data. To fulfil this security objective, it is required to implement the following countermeasures. (1) Management of the TSF confidential data. FMT_MTD.1 allows the MFP administrator and applicable normal user to operate the login password of normal user. A supervisor is allowed to operate the login password of supervisor. The supervisor and applicable MFP administrator are allowed to operate the login password of administrator. The MFP administrator is only allowed to operate the audit log and HDD cryptographic key. (2) Specification of the Management Function. FMT_SMF.1 performs the required Management Functions for Security Function. (3) Specification of the roles. FMT_SMR.1 maintains the users who have the privileges. (4) Use trusted channels for sending or receiving TSF confidential data. The TSF confidential data sent and received by the TOE via the LAN are protected by FTP_ITC.1. By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional requirements for these countermeasures, O.CONF.NO_DIS is fulfilled. Copyright (c) 2011 RICOH COMPANY, LTD. All rights reserved.

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Page 71 of
91
Copyright (c) 2011 RICOH COMPANY, LTD. All rights reserved.
(3)
Management of the security attributes.
FMT_MSA.1(a) restricts each available operation (newly create, query, modify and delete) for the login
user name to specified users only.
FMT_MSA.3(a) sets the restrictive value to the security attributes of user jobs (object) when the user
jobs are generated.
By satisfying FDP_ACC.1(a), FDP_ACF.1(a), FTP_ITC.1, FMT_MSA.1(a) and FMT_MSA.3(a), which are
the security functional requirements for these countermeasures, O.FUNC.NO_ALT is fulfilled.
O.PROT.NO_ALT Protection of TSF protected data alteration
O.PROT.NO_ALT is the security objective to allow only users who can maintain the security to alter the
TSF protected data. To fulfil this security objective, it is required to implement the following
countermeasures.
(1)
Management of the TSF protected data.
By FMT_MTD.1, only the MFP administrator is allowed to manage the date, time, S/MIME user
information, destination folder and users for stored and received documents.
(2)
Specification of the Management Function.
FMT_SMF.1 performs the required Management Functions for Security Function.
(3)
Specification of the roles.
FMT_SMR.1 maintains the users who have the privileges.
(4)
Use trusted channels for sending or receiving the TSF protected data.
The TSF protected data sent and received by the TOE via the LAN are protected by FTP_ITC.1.
By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional
requirements for these countermeasures, O.PROT.NO_ALT is fulfilled.
O.CONF.NO_DIS Protection of TSF confidential data disclosure
O.CONF.NO_DIS is the security objective to allow only users who can maintain the security to disclose the
TSF confidential data. To fulfil this security objective, it is required to implement the following
countermeasures.
(1)
Management of the TSF confidential data.
FMT_MTD.1 allows the MFP administrator and applicable normal user to operate the login password
of normal user. A supervisor is allowed to operate the login password of supervisor. The supervisor and
applicable MFP administrator are allowed to operate the login password of administrator. The MFP
administrator is only allowed to operate the audit log and HDD cryptographic key.
(2)
Specification of the Management Function.
FMT_SMF.1 performs the required Management Functions for Security Function.
(3)
Specification of the roles.
FMT_SMR.1 maintains the users who have the privileges.
(4)
Use trusted channels for sending or receiving TSF confidential data.
The TSF confidential data sent and received by the TOE via the LAN are protected by FTP_ITC.1.
By satisfying FMT_MTD.1, FMT_SMF.1, FMT_SMR.1 and FTP_ITC.1, which are the security functional
requirements for these countermeasures, O.CONF.NO_DIS is fulfilled.