HP JetAdvantage Security Manager 10 Device E-LTU Bedienungsanleitung Seite 7
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Close unused ports and protocols
Disable controls such as the Job Cancel button and the Go button
Enable the resume feature to allow the device to resume operations after an error state
Configure Job Timeout
Control physical access to the device
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 SNMPv3 and HTTPS
Lock the control panel
SOLUTIONS
Care should be exercised when creating security policies if third party solutions are installed on the
devices. It is possible that certain security settings can disrupt the operation of any solutions that may
be installed on devices. See the solution documentation to determine whether policy changes are
required to accommodate specific functionality.
Testing a small number of devices in a sandbox or test environment when solutions are present on
devices is highly recommended before applying settings to a fleet as undesired behavior may occur
with certain settings on certain solutions. Solutions may fail to install/operate or potentially even
worse behavior can occur on devices when some settings are applied to devices with solutions
present.
For example, solutions that have been tested on HP printers may potentially require the following
settings in order to either install or run the solutions:
- DNS server configured
- SNMP GET Community Name (Read Community Name) required for installation and
configuration
- EWS password required for installation and configuration
- Command Load & Execute enabled
- PJL Access Commands enabled
- Remote Firmware Updates enabled
- Allow PJL Access enabled
- PJL Password not set
- Legacy Firmware Upgrades enabled (Current versions of firmware are signed with the SHA-
256 hashing algorithm. Enabling this option allows installation of legacy firmware signed
with the less secure SHA-1 algorithm)
- Control Panel Timeout set to 60s
Testing of several common solutions against the policy below (a modified Base policy) yielded the
following results:
- Policy Editor Settings 1
- INTRODUCTION 5
- Repudiation 6
- Information Disclosure 6
- Denial of Service 6
- SOLUTIONS 7
- CREATING A POLICY 8
- Template Choices 9
- Adding Security Settings 14
- Policy Preview 18
- Search Feature 20
- Quick Settings 21
- POLICY CATEGORIES 22
- Authentication 24
- Authentication Manager 25
- Credentials 30
- Authentication Services 38
- Certificate Management 42
- Device Control 47
- Logging 50
- Control Panel 51
- External Connections 53
- Device Security Checks 55
- General 59
- Device Discovery 69
- Printing 74
- Digital Services 83
- Network Security 88
- Network Services 92
- Information Tab 94
- Phone Home 95
- Shared Items 102
- Outgoing E-mail (SMTP) 103
- ENW, Rev. 5, April 2017 104
- HP Color LaserJets 105
- HP LaserJets 109
- HP Other Devices 113
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