III - Administrative Classified
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000446-GPOS-00200
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must be configured so that the script which runs each 30 days or less to check file integrity is the default one.
<VulnDiscussion>Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...Rule Medium Severity -
SRG-OS-000480-GPOS-00226
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt.
<VulnDiscussion>Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain acc...Rule Low Severity -
SRG-OS-000004-GPOS-00004
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/passwd.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000004-GPOS-00004
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/group.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000004-GPOS-00004
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/shadow.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000004-GPOS-00004
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/gshadow.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000004-GPOS-00004
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/opasswd.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000046-GPOS-00022
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must alert the ISSO and SA (at a minimum) in the event of an audit processing failure.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....Rule Medium Severity -
SRG-OS-000047-GPOS-00023
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must shut down by default upon audit failure (unless availability is an overriding concern).
<VulnDiscussion>It is critical that when the operating system is at risk of failing to process audit logs as required, it takes action to mit...Rule Medium Severity -
SRG-OS-000057-GPOS-00027
<GroupDescription></GroupDescription>Group -
The Ubuntu operating system must be configured so that audit log files are not read or write-accessible by unauthorized users.
<VulnDiscussion>Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confide...Rule Medium Severity
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