III - Administrative Public
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000015-NAC-000020
<GroupDescription></GroupDescription>Group -
Forescout must enforce approved access by employing admissions assessment filters that include, at a minimum, device attributes such as type, IP address, resource group, and/or mission conditions as defined in Forescout System Security Plan (SSP). This is required for compliance with C2C Step 4.
<VulnDiscussion>Successful authentication must not automatically give an entity access to an asset or security boundary. The lack of authoriz...Rule High Severity -
SRG-NET-000015-NAC-000030
<GroupDescription></GroupDescription>Group -
Endpoint policy assessment must proceed after the endpoint attempting access has been identified using an approved identification method such as IP address. This is required for compliance with C2C Step 2.
<VulnDiscussion>Automated policy assessments must reflect the organization's current security policy so entry control decisions will happen o...Rule High Severity -
SRG-NET-000015-NAC-000040
<GroupDescription></GroupDescription>Group -
For endpoints that require automated remediation, Forescout must be configured to logically separate endpoints from the trusted network traffic during remediation. This is required for compliance with C2C Step 4.
<VulnDiscussion>Automated and manual procedures for remediation for critical security updates will be managed differently. Continuing to asse...Rule High Severity -
SRG-NET-000015-NAC-000060
<GroupDescription></GroupDescription>Group -
If a device requesting access fails Forescout policy assessment, Forescout must communicate with other components and the switch to either terminate the session or isolate the device from the trusted network for remediation. This is required for compliance with C2C Step 3.
<VulnDiscussion>Endpoints with identified security flaws and weaknesses endanger the network and other devices on it. Isolation or terminatio...Rule High Severity -
SRG-NET-000015-NAC-000070
<GroupDescription></GroupDescription>Group -
Forescout 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.
<VulnDiscussion>Connections that bypass established security controls should be allowed only in cases of administrative need. These procedure...Rule Medium Severity -
SRG-NET-000015-NAC-000080
<GroupDescription></GroupDescription>Group -
Forescout must be configured so that all client machines are assessed by Forescout with exceptions that are allowed to bypass Forescout based on account or account type, as approved by the information system security manager (ISSM) and documented in the System Security Plan (SSP). This is required for compliance with C2C Step 1.
<VulnDiscussion>The NAC gateway provides the policy enforcement allowing or denying the endpoint to the network. Unauthorized endpoints that ...Rule High Severity -
SRG-NET-000015-NAC-000090
<GroupDescription></GroupDescription>Group -
Forescout appliance must not be configured to implement a DHCP layer 3 method for separation or device authorization. This is required for compliance with C2C Step 2.
<VulnDiscussion>Using DHCP, an internal rogue device can still bypass the authentication process, regardless of the policy flow. Older versio...Rule High Severity -
SRG-NET-000015-NAC-000100
<GroupDescription></GroupDescription>Group -
Forescout must send an alert to the Information System Security Manager (ISSM) and System Administrator (SA), at a minimum, when critical security issues are found that put the network at risk. This is required for compliance with C2C Step 2.
<VulnDiscussion>Requiring authentication and authorization of both the user's identity and the identity of the computing device is essential ...Rule Medium Severity -
SRG-NET-000015-NAC-000110
<GroupDescription></GroupDescription>Group -
When devices fail the policy assessment, Forescout 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.
<VulnDiscussion>Notifications sent to the user and/or network administrator informing them of remediation requirements will ensure that actio...Rule Medium Severity -
SRG-NET-000015-NAC-000120
<GroupDescription></GroupDescription>Group -
Forescout must place client machines on a blacklist or terminate network communications on devices when critical security issues are found that put the network at risk. This is required for compliance with C2C Step 4.
<VulnDiscussion>Devices that are found to have critical security issues place the network at risk if they are allowed to continue communicati...Rule High Severity
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