Red Hat Enterprise Linux 9 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must disable the ability of a user to restart the system from the login screen.
<VulnDiscussion>A user who is at the console can reboot the system at the login screen. If restart or shutdown buttons are pressed at the log...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must prevent a user from overriding the disable-restart-buttons setting for the graphical user interface.
<VulnDiscussion>A user who is at the console can reboot the system at the login screen. If restart or shutdown buttons are pressed at the log...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must disable the ability of a user to accidentally press Ctrl-Alt-Del and cause a system to shut down or reboot.
<VulnDiscussion>A locally logged-in user who presses Ctrl-Alt-Del, when at the console, can reboot the system. If accidentally pressed, as co...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must prevent a user from overriding the Ctrl-Alt-Del sequence settings for the graphical user interface.
<VulnDiscussion>A locally logged-in user who presses Ctrl-Alt-Del, when at the console, can reboot the system. If accidentally pressed, as co...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 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-000114-GPOS-00059
<GroupDescription></GroupDescription>Group -
RHEL 9 must be configured to disable USB mass storage.
<VulnDiscussion>USB mass storage permits easy introduction of unknown devices, thereby facilitating malicious activity. Satisfies: SRG-OS-00...Rule Medium Severity -
SRG-OS-000378-GPOS-00163
<GroupDescription></GroupDescription>Group -
RHEL 9 must have the USBGuard package installed.
<VulnDiscussion>The USBguard-daemon is the main component of the USBGuard software framework. It runs as a service in the background and enfo...Rule Medium Severity -
SRG-OS-000378-GPOS-00163
<GroupDescription></GroupDescription>Group -
RHEL 9 must have the USBGuard package enabled.
<VulnDiscussion>The USBguard-daemon is the main component of the USBGuard software framework. It runs as a service in the background and enfo...Rule Medium Severity -
SRG-OS-000062-GPOS-00031
<GroupDescription></GroupDescription>Group -
RHEL 9 must enable Linux audit logging for the USBGuard daemon.
<VulnDiscussion>Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events r...Rule Low Severity -
SRG-OS-000378-GPOS-00163
<GroupDescription></GroupDescription>Group -
RHEL 9 must block unauthorized peripherals before establishing a connection.
<VulnDiscussion>The USBguard-daemon is the main component of the USBGuard software framework. It runs as a service in the background and enfo...Rule Medium Severity
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