III - Administrative Classified
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000477-GPOS-00222
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must generate audit records when successful/unsuccessful attempts to use the fdisk command.
<VulnDiscussion>Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...Rule Medium Severity -
SRG-OS-000027-GPOS-00008
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must limit the number of concurrent sessions to ten for all accounts and/or account types.
<VulnDiscussion>Ubuntu operating system management includes the ability to control the number of users and user sessions that utilize an oper...Rule Low Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must retain a users 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-000029-GPOS-00010
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must initiate a session lock after a 15-minute period of inactivity for all connection types.
<VulnDiscussion>A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinit...Rule Medium Severity -
SRG-OS-000030-GPOS-00011
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must be configured for 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-000032-GPOS-00013
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must monitor remote access methods.
<VulnDiscussion>Remote access services, such as those providing remote access to network devices and information systems, which lack automate...Rule Medium Severity -
SRG-OS-000033-GPOS-00014
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must implement DoD-approved encryption to protect the confidentiality of remote access sessions.
<VulnDiscussion>Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote...Rule Medium Severity -
SRG-OS-000112-GPOS-00057
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must enforce SSHv2 for network access to all accounts.
<VulnDiscussion>A replay attack may enable an unauthorized user to gain access to the operating system. Authentication sessions between the a...Rule High Severity -
SRG-OS-000125-GPOS-00065
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must use strong authenticators in establishing nonlocal maintenance and diagnostic sessions.
<VulnDiscussion>Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network,...Rule Medium Severity -
SRG-OS-000126-GPOS-00066
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must immediately terminate all network connections associated with SSH traffic after a period of inactivity.
<VulnDiscussion>Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of ...Rule Medium Severity
Node 2
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