I - Mission Critical Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000002-GPOS-00002
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must provision temporary user accounts with an expiration time of 72 hours or less.
<VulnDiscussion>If temporary user accounts remain active when no longer needed or for an excessive period, these accounts may be used to gain...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must enable the graphical user logon banner to display the Standard Mandatory DoD Notice and Consent Banner before granting local access to the system via a graphical user logon.
<VulnDiscussion>Display of a standardized and approved use notification before granting access to the Ubuntu operating system ensures privacy...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must display the Standard Mandatory DOD Notice and Consent Banner before granting local access to the system via a graphical user logon.
<VulnDiscussion>Display of a standardized and approved use notification before granting access to the Ubuntu operating system ensures privacy...Rule Medium Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must retain a user's session lock until that user reestablishes access using established identification and authentication procedures.
<VulnDiscussion>A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the ...Rule Medium Severity -
SRG-OS-000030-GPOS-00011
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must allow users to directly initiate a session lock for all connection types.
<VulnDiscussion>A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the ...Rule Medium Severity -
SRG-OS-000068-GPOS-00036
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must map the authenticated identity to the user or group account for PKI-based authentication.
<VulnDiscussion>Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the indivi...Rule High Severity -
SRG-OS-000075-GPOS-00043
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must enforce 24 hours/1 day as the minimum password lifetime. Passwords for new users must have a 24 hours/1 day minimum password lifetime restriction.
<VulnDiscussion>Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enfo...Rule Low Severity -
SRG-OS-000076-GPOS-00044
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must enforce a 60-day maximum password lifetime restriction. Passwords for new users must have a 60-day maximum password lifetime restriction.
<VulnDiscussion>Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the ...Rule Low Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Ubuntu operating systems when booted must require authentication upon booting into single-user and maintenance modes.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...Rule High Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must uniquely identify interactive users.
<VulnDiscussion>To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to pre...Rule Medium Severity
Node 2
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