Cisco ISE NAC Security Technical Implementation Guide

SRG-NET-000062-NAC-000340

The Cisco ISE must use TLS 1.2, at a minimum, to protect the confidentiality of information passed between the endpoint agent and the Cisco ISE. This is This is required for compliance with C2C Step 1.

SRG-NET-000015-NAC-000020

The Cisco ISE must enforce approved access by employing authorization policies with specific attributes; such as resource groups, device type, certificate attributes, or any other attributes that are specific to a group of endpoints, and/or mission conditions as defined in the site's Cisco ISE System Security Plan (SSP). This is required for compliance with C2C Step 4.

SRG-NET-000015-NAC-000020

The Cisco ISE must be configured to profile endpoints connecting to the network. This is required for compliance with C2C Step 4.

SRG-NET-000015-NAC-000020

The Cisco ISE must verify host-based firewall software is running on posture required clients defined in the NAC System Security Plan (SSP) prior to granting trusted network access. This is required for compliance with C2C Step 4.

SRG-NET-000015-NAC-000020

The Cisco ISE must verify anti-malware software is installed and up to date on posture required clients defined in the NAC System Security Plan (SSP) prior to granting trusted network access. This is required for compliance with C2C Step 4.

SRG-NET-000015-NAC-000020

The Cisco ISE must verify host-based IDS/IPS software is authorized and running on posture required clients defined in the NAC System Security Plan (SSP) prior to granting trusted network access. This is required for compliance with C2C Step 4.

SRG-NET-000015-NAC-000040

For endpoints that require automated remediation, the Cisco ISE must be configured to redirect endpoints to a logically separate VLAN for remediation services. This is required for compliance with C2C Step 4.

SRG-NET-000015-NAC-000070

The Cisco ISE must be configured to notify the user before proceeding with remediation of the user's endpoint device when automated remediation is used. This is required for compliance with C2C Step 3.

SRG-NET-000015-NAC-000080

The Cisco ISE must be configured so that all endpoints that are allowed to bypass policy assessment are approved by the Information System Security Manager (ISSM) and documented in the System Security Plan (SSP). This is This is required for compliance with C2C Step 1.

SRG-NET-000015-NAC-000100

The Cisco ISE must send an alert to the Information System Security Manager (ISSM) and System Administrator (SA), at a minimum, when security issues are found that put the network at risk. This is required for compliance with C2C Step 2.

SRG-NET-000015-NAC-000110

When endpoints fail the policy assessment, the Cisco ISE must create a record with sufficient detail suitable for forwarding to a remediation server for automated remediation or sending to the user for manual remediation. This is required for compliance with C2C Step 3.

SRG-NET-000015-NAC-000120

The Cisco ISE must place client machines on the blacklist and terminate the agent connection when critical security issues are found that put the network at risk. This is required for compliance with C2C Step 4.

SRG-NET-000015-NAC-000130

The Cisco ISE must be configured so client machines do not communicate with other network devices in the DMZ or subnet except as needed to perform an access client assessment or to identify themselves. This is required for compliance with C2C Step 2.

SRG-NET-000322-NAC-001230

The Cisco ISE must deny or restrict access for endpoints that fail required posture checks. This is required for compliance with C2C Step 4.

SRG-NET-000492-NAC-002100

The Cisco ISE must generate a log record when an endpoint fails authentication. This is This is required for compliance with C2C Step 1.

SRG-NET-000492-NAC-002101

The Cisco ISE must generate a log record when the client machine fails posture assessment because required security software is missing or has been deleted. This is This is required for compliance with C2C Step 1.

SRG-NET-000492-NAC-002120

The Cisco ISE must send an alert to the system administrator, at a minimum, when endpoints fail the policy assessment checks for organization-defined infractions. This is required for compliance with C2C Step 3.

SRG-NET-000333-NAC-001340

The Cisco ISE must be configured to log records onto a centralized events server. This is This is required for compliance with C2C Step 1.

SRG-NET-000334-NAC-001350

The Cisco ISE must off-load log records onto a different system. This is required for compliance with C2C Step 1.

SRG-NET-000335-NAC-001360

The Cisco ISE must generate a critical alert to be sent to the ISSO and SA (at a minimum) in the event of an audit processing failure. This is required for compliance with C2C Step 1.

SRG-NET-000335-NAC-001370

The Cisco ISE must provide an alert to, at a minimum, the SA and ISSO of all audit failure events where the detection and/or prevention function is unable to write events to either local storage or the centralized server. This is required for compliance with C2C Step 1.

SRG-NET-000336-NAC-001390

The Cisco ISE must be configured with a secondary log server in case the primary log is unreachable. This is required for compliance with C2C Step 1.

SRG-NET-000088-NAC-000440

The Cisco ISE must generate a critical alert to be sent to the ISSO and SA (at a minimum) if it is unable to communicate with the central event log. This is required for compliance with C2C Step 1.

SRG-NET-000089-NAC-000450

The Cisco ISE must continue to queue traffic log records locally when communication with the central log server is lost and there is an audit archival failure. This is required for compliance with C2C Step 1.

SRG-NET-000512-NAC-002310

The Cisco ISE must perform continuous detection and tracking of endpoint devices attached to the network. This is required for compliance with C2C Step 1.