Security for Ricoh laser multifunction printers/copiers.

Security for Ricoh laser multifunction printers/copiers.

Security for Ricoh laser multifunction printers/copiers.

Ricoh's Approach to Security for Laser Color/Monochrome Multifunction Printers

Ricoh has been aware of the security issues surrounding Multifunction Printers for many years. As a market leader in Multifunction security, many steps have been taken to implement security features and functions to help protect your important information from threats, such as the alteration of electronic and hardcopy documents. Ricoh assumes a host of possible threats in every process throughout the lifecycle of electronic and hardcopy documents as they are generated, processed, stored, archived, and disposed. We develop and offer secure features and technology to protect electronic and hardcopy documents from threats without hindering the usability of our products or the productivity of our customers.

For a wide range of our products, Ricoh has obtained certification based on Common Criteria (ISO/IEC 15408). Our security functions are verified by independent third party government-licensed laboratories to ensure security features perform correctly and conform to security standards set by government and industry. Our Customers can use our products with confidence made possible by independent testing and international standards.

Information security threats are becoming more advanced and stealthy every day. Ricoh is committed to offering secure products that protect your information assets and harmonize with your office environment and security policies. Ensuring security requires correct settings and implementation in your specific environment. Ricoh makes sure that customers recognize the importance of security, and supports them so that they can use our products with the correct security settings.

Unsecured firmware and other malware

If a multifucntion printer's or printer’s built-in software — also known as firmware — is altered or compromised, that device can then be used as a method of intrusion into the corporate network, as a means to damage the device or as a platform for other malicious purposes. Ricoh-designed devices are built using a Ricoh-only Trusted Platform Module (TPM) and are designed to not boot up if the firmware has been compromised.
In addition to the firmware, many multifunction printers support the installation of applications which, if allowed to run, could allow an attacker access to the device. To protect against malicious code, Ricoh's color/monochrome multifunction prointer scanner copier will only allow an application to be installed if it incldues a valid Ricoh digital signature.

Network and Communications

Network port security

In an effort to make it easier to add network devices, many vendors’ network-enabled systems are routinely shipped to the customer with all ports set to “open” — but unused open ports on multifunction printers pose a security risk. Compromised ports can lead to various outside threats — including the destruction or falsification of stored data, Denial of Service (DoS) attacks and viruses or malware entering the network. Ricoh device administrators can easily disable unneeded network ports or protocols — helping make devices virtually “invisible” to hacking.

IP address filtering

Accesses using TCP/IP can be controlled by designating a range of IP addresses from which accesses is allowed.

Security for fax lines

A multifunction printer with a fax feature is connected to the outside via a telephone line and it is necessary to block unauthorized access. Ricoh software is designed to only process appropriate types of data and send that data to appropriate functions in the device. Therefore, only fax data is received from the fax line and it is communicated only to the processes needed for fax operation. This mechanism prevents unauthorized access from the fax line to the network or to the programs inside the device.

IPsec communications

Ricoh multifunction printers can use IPsec for encrypted communications. IPsec enables communications in units of secure packets at the IP protocol level. Even if no encryption is used by a high-order protocol or application, IPsec enhances security by preventing the communication content from being tapped into or altered.

Encryption over SSL/TLS

Ricoh multifunction printers can use SSL/TLS for encrypted communications. SSL/TLS prevents data from being tapped into, analyzed, or altered during communications. For instance, a customer using e-mail services and cloud services over the Internet may want to encrypt communications using the scan-to-e-mail function. This method greatly reduces the risk of information leaks or alterations when an external SMTP server is used. When using the "RICOH Smart Device Connector", communication between the smartphone application and the multifunction device is encrypted by SSL/TLS as well.

SNMPv3-encrypted communications

SNMP (Simple Network Management Protocol) is a protocol for collecting information on network devices so that they can be monitored and controlled. The information includes, for example, the total number of copies a device has printed and the errors it has encountered. SNMP is also used to operate the devices, such as monitoring the operating status of its services. These functions are based on information obtained from a management information base (MIB), which describes the configuration of the network devices. SNMPv3 incorporates user authentication and data encryption functions which protect user data and network device information.

S/MIME for scan-to-e-mail

To reduce the risk of information leaks, e-mail messages can be sent using public key cryptography and a certificate of user verification that has been registered in the address book of a multifunction printer. Spoofing and message alteration can be prevented by attaching an electronic signature using a secret key based on a device certificate in the the multifunction copier.

  • This feature is not available with W-NET FAX and direct SMTP.

WPA2 (Wi-Fi Protected Access) support

WPA2 is an encryption system for wireless networks. WPA2 provides greater security than WEP, a conventional encryption system. In addition to the SSID and security key used in WEP, WPA2 features a user authentication function and an encryption protocol.

IEEE 802.1x network protocol

Ricoh multifunction printers utilize 802.1x protocols, which provides an authentication mechanism when attaching to a LAN or WLAN. This helps safeguard against unauthorized access to resources located on the protected side of the network.

 

Security Functions for Management

User authentication

Authentication features enable authorized users to access a Ricoh multifunction printer, while preventing access for those without proper credentials. Ricoh also gives you the ability to control the level of capabilities granted to each user or group of users. This may include restricting the ability to change machine settings and view address book entries or granting access to particular scanning workflows, document servers and other functions. In addition, the User Lockout function — which triggers if it detects a high frequency of successful or failed login attempts — helps guard against a denial of service attack or brute force password crack.

User authentication using authentication cards

Instead of entering a user name and password, a user can simply hold an authentication card over the card reader to login to the device. The Common Access Card (CAC) is a U.S. Department of Defense specialized ID card-based authentication system, designed for government users that must be compliant with Homeland Security Presidential Directive 12 (HSPD-12).

  • Authentication card system is optional.

Job logs/access logs

Logs stored in the multiufnction copier provide a variety of information such as how the functions have been used, what errors have occurred, how the device has been accessed, and who have accessed the device. These logs impose a disincentive to people intending to leak information, and allow tracking in the unlikely event of an unauthorized access.

User access restriction

With a user management tool, the system administrator can restrict the access privileges of users. For instance, the administrator can set up the privileges to allow only selected users to access the address book registered in the multifunction printer. This blocks unauthorized access to important information, such as the personal information recorded in the address book.

User lockout function

The User Lockout function triggers if it detects a high frequency of successful or failed login attempts. This helps guard against a denial of service attack or brute force password crack.

Hard Disk Security

Hard disk drive (HDD) encryption

Even if the hard drive is physically removed from a Ricoh multifunction printer, the encrypted data cannot be read. The hard drive encryption function can help protect a multifunction printer’s hard drive against data theft while helping organizations comply with corporate security policies. Encryption includes data stored in a system’s address book — reducing the danger of an organization’s employees, customers or vendors having their information misappropriated and potentially targeted.

Data to be encrypted

The following types of data — which are stored in the non-volatile memory or hard disk drive of multifunction printers — can be encrypted:

  • ・Address book
  • ・User authentication data
  • ・Stored documents
  • ・Temporarily stored documents
  • ・Logs
  • ・Network interface settings
  • ・Configuration

DataOverwriteSecurity System (DOSS)

When a document is scanned or when data is received from a PC, some data may be stored temporarily on the hard disk drive or memory device. This can include scan/print/copy image data, user entered data and device configuration. This temporary — or “latent” — data represents a potential security vulnerability. The RICOH DataOverwriteSecurity System (DOSS) closes this vulnerability, destroying temporary data stored on the MFP’s hard drive by overwriting it with random sequences of “1’s” and “0’s.” Temporary data is actively overwritten and thereby erased each time a job is executed.

Document Security

PDF password encryption

To increase security against unauthorized use, PDF files can be protected by encryption and password. A protected PDF file can be opened only by a person who knows the password. A password can also be set for changing the privileges, thus restricting the printing, modification, copying, and extraction of the content.

Locked print

Printed documents sitting on the paper tray or left out in the open can be picked up by anyone. This puts the document’s information at risk, and the potential impact grows dramatically when printing confidential documents. Ricoh locked print capabilities can hold encrypted documents on the device’s hard drive until the document’s owner arrives and enters the correct PIN code. In addition to this driver-based locked print function, Ricoh also offers enhanced locked print — which is tied to user accounts and can be coupled with card authentication. For even more capability, software such as RICOH Streamline NX can provide full-featured secure document release — giving users options over their secure print queue while letting administrators maintain control.

Unauthorized copy control

Ricoh offers functions to thwart unauthorized copying of hardcopy documents — helping prevent possible information leaks. The copy guard function prints and copies documents with special invisible patterns embedded across the background. If the printed or copied document is photocopied again, the embedded patterns will become visible on the copies.

The unauthorized copy control function protects against unauthorized copying in two ways. Masked Type for Copying embeds a masking pattern and message within the original printout. If unauthorized copies are made, the embedded message appears on the copy. This might include the document author’s name or a warning message. Data Security for Copying helps safeguard the information itself. When the Ricoh device detects the masking pattern, the printed data is obscured by a gray box that covers all but a 4mm margin of the masking pattern.

Device Operation Security

Displaying confirmation of transmission

Before sending a fax, the destination fax number and the number of pages can be easily viewed. This screen minimizes the risk of dialing the wrong number. The device can be set up so that this screen is always displayed before transmission.

Re-entering a fax number to confirm destination

People can easily make mistakes when entering a fax number directly on the keypad. Our customer engineers can set up the device so that the number needs to be entered twice or more for confirmation. If different numbers are entered, the transmission will not commence. This feature minimizes the risk of sending information to a wrong destination.

  • Ricoh's multifunction printers comply with FASEC 1, a security guideline for facsimile.

MORE: LEASE TO OWN OR BUY RICOH COLOR/MONOCHROME LASER MULTI-FUNCTION PRINTER COPIER SCANNER.

Ricoh's Functions Designed to Protect Firmware

Digitally signed firmware updates

If a MFP or printer’s built-in software — also known as firmware — is altered or compromised, that device can then be used as a method of intrusion into the corporate network, as a means to damage the device or as a platform for other malicious purposes. Ricoh-designed devices are built using a Ricoh-only Trusted Platform Module (TPM) and are designed to not boot up if the firmware has been compromised. Ricoh’s TPM is a hardware security module that validates the controller core programs, Operating System, BIOS, boot loader and application firmware.

Ricoh MFPs and printers use a digital signature to judge firmware validity. The public key used for this verification is stored in an overwriteprotected, non-volatile region of the Ricoh Trusted Platform Module (TPM). A root encryption key and cryptographic functions are also contained within the TPM and cannot be altered from the outside. Ricoh uses a Trusted Boot procedure that employs two methods to verify the validity of programs/firmware:
1. Detection of alterations
2. Validation of digital signatures

A Ricoh laser multifunction color printer will not boot up unless its programs/firmware are verified to be authentic and safe for users.

 

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