Oracle Linux 8 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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OL 8 must configure the use of the pam_faillock.so module in the /etc/pam.d/password-auth file.
<VulnDiscussion>By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...Rule Medium Severity -
SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
OL 8 systems, versions 8.2 and above, must configure SELinux context type to allow the use of a non-default faillock tally directory.
<VulnDiscussion>By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...Rule Medium Severity -
SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
OL 8 systems below version 8.2 must configure SELinux context type to allow the use of a non-default faillock tally directory.
<VulnDiscussion>By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...Rule Medium Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
OL 8 must display the date and time of the last successful account logon upon an SSH logon.
<VulnDiscussion>Providing users with feedback on when account accesses via SSH last occurred facilitates user recognition and reporting of un...Rule Medium Severity -
SRG-OS-000480-GPOS-00228
<GroupDescription></GroupDescription>Group -
OL 8 must initiate a session lock for graphical user interfaces when the screensaver is activated.
<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-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
OL 8 must disable the user list at logon for graphical user interfaces.
<VulnDiscussion>Leaving the user list enabled is a security risk since it allows anyone with physical access to the system to enumerate known...Rule Medium Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
OL 8 must have the tmux package installed.
<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-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
OL 8 must enable a user session lock until that user re-establishes access using established identification and authentication procedures for command line sessions.
<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-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
OL 8 must ensure session control is automatically started at shell initialization.
<VulnDiscussion>Tmux is a terminal multiplexer that enables a number of terminals to be created, accessed, and controlled from a single scree...Rule Medium Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
OL 8 default permissions must be defined in such a way that all authenticated users can read and modify only their own files.
<VulnDiscussion>Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary acc...Rule Medium Severity -
OL 8 must prevent users from disabling session control mechanisms.
<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 Low Severity -
SRG-OS-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
OL 8 must enable a user session lock until that user reestablishes access using established identification and authentication procedures for command line sessions.
<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-000028-GPOS-00009
<GroupDescription></GroupDescription>Group -
OL 8 must be able to initiate directly a session lock for all connection types using smartcard when the smartcard is removed.
<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 -
OL 8 must automatically lock graphical user sessions after 15 minutes of inactivity.
<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-000029-GPOS-00010
<GroupDescription></GroupDescription>Group -
SRG-OS-000480-GPOS-00228
<GroupDescription></GroupDescription>Group -
OL 8 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 Medium Severity -
OL 8 must automatically lock command line user sessions after 15 minutes of inactivity.
<VulnDiscussion>Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take c...Rule Medium Severity -
SRG-OS-000029-GPOS-00010
<GroupDescription></GroupDescription>Group -
OL 8 must prevent a user from overriding the session lock-delay setting for the graphical user interface.
<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-000029-GPOS-00010
<GroupDescription></GroupDescription>Group -
OL 8 must prevent a user from overriding the session idle-delay setting for the graphical user interface.
<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-000029-GPOS-00010
<GroupDescription></GroupDescription>Group -
OL 8 must prevent a user from overriding the session lock-enabled setting for the graphical user interface.
<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-000068-GPOS-00036
<GroupDescription></GroupDescription>Group -
SRG-OS-000069-GPOS-00037
<GroupDescription></GroupDescription>Group -
OL 8 must ensure the password complexity module is enabled in the password-auth file.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
OL 8 must enforce password complexity by requiring that at least one uppercase character be used.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Low Severity -
SRG-OS-000070-GPOS-00038
<GroupDescription></GroupDescription>Group -
OL 8 must enforce password complexity by requiring that at least one lowercase character be used.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Low Severity -
SRG-OS-000071-GPOS-00039
<GroupDescription></GroupDescription>Group -
OL 8 must enforce password complexity by requiring that at least one numeric character be used.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Low Severity -
SRG-OS-000072-GPOS-00040
<GroupDescription></GroupDescription>Group -
OL 8 must require the maximum number of repeating characters of the same character class be limited to four when passwords are changed.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
SRG-OS-000072-GPOS-00040
<GroupDescription></GroupDescription>Group -
OL 8 must require the maximum number of repeating characters be limited to three when passwords are changed.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
OL 8 must require the change of at least four character classes when passwords are changed.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
SRG-OS-000072-GPOS-00040
<GroupDescription></GroupDescription>Group
Node 2
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