HP Scanjet Enterprise 7000n , HP Color LaserJet CP5525, HP Color LaserJet CM4540 MFP and HP LaserJet M4555 MFP - HP Imaging and Printing Security Best Practices

Chapter 2 HP LaserJet and Color LaserJet MFP Security Checklist 8
• Changing access configurations
Here are some methods of minimizing opportunities for denial of service on an MFP:
• Lock the control panel by configuring Access Controls.
• Lock EWS configuration settings.
• Close unused ports and protocols.
• Disable controls such as the Job Cancel button and the Go button.
• Enable the resume feature to allow the MFP to resume operations after an error state.
• Configure Job Timeout.
• Control physical access to the MFP.
• Lock physical access to removable hardware.
Elevation of Privilege
Elevation of privilege is any method of upgrading authorized access to include unauthorized
access. This can be any of the following:
• Non-administrators changing settings to get administrator privileges
• Unauthorized use of management software to provide access for other unauthorized users
• Using management software to bypass job accounting functions
Here are some methods of minimizing opportunities for elevation of privilege:
• Configure the administrator (device) password.
• Configure the PJL password.
• Configure SNMPv3 and HTTPS.
• Lock the control panel.