II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
All OL 8 networked systems must have SSH installed.
<VulnDiscussion>Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected commu...Rule Medium Severity -
SRG-OS-000423-GPOS-00187
<GroupDescription></GroupDescription>Group -
All OL 8 networked systems must have and implement SSH to protect the confidentiality and integrity of transmitted and received information, as well as information during preparation for transmission.
<VulnDiscussion>Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected commu...Rule Medium Severity -
SRG-OS-000033-GPOS-00014
<GroupDescription></GroupDescription>Group -
OL 8 must force a frequent session key renegotiation for SSH connections to the server.
<VulnDiscussion>Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be r...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The x86 Ctrl-Alt-Delete key sequence must be disabled on OL 8.
<VulnDiscussion>A locally logged-on user, who presses Ctrl-Alt-Delete when at the console, can reboot the system. If accidentally pressed, as...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The x86 Ctrl-Alt-Delete key sequence in OL 8 must be disabled if a graphical user interface is installed.
<VulnDiscussion>A locally logged-on user, who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, a...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
OL 8 must disable the systemd Ctrl-Alt-Delete burst key sequence.
<VulnDiscussion>A locally logged-on user who presses Ctrl-Alt-Delete when at the console can reboot the system. If accidentally pressed, as c...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
OL 8 must disable the debug-shell systemd service.
<VulnDiscussion>The debug-shell requires no authentication and provides root privileges to anyone who has physical access to the machine. Whi...Rule Low Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Trivial File Transfer Protocol (TFTP) server package must not be installed if not required for OL 8 operational support.
<VulnDiscussion>If TFTP is required for operational support (such as the transmission of router configurations) its use must be documented wi...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The root account must be the only account having unrestricted access to the OL 8 system.
<VulnDiscussion>If an account other than root also has a User Identifier (UID) of "0", it has root authority, giving that account unrestricte...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
OL 8 must prevent IPv4 Internet Control Message Protocol (ICMP) redirect messages from being accepted.
<VulnDiscussion>ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...Rule Medium Severity
Node 2
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