II - Mission Support Public
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000191-GPOS-00080
<GroupDescription></GroupDescription>Group -
SLEM 5 must implement an endpoint security tool.
<VulnDiscussion>Adding endpoint security tools can provide the capability to automatically take actions in response to malicious behavior, wh...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
SLEM 5 must display the Standard Mandatory DOD Notice and Consent Banner before granting any local or remote connection to the system.
<VulnDiscussion>Display of a standardized and approved use notification before granting access to SLEM 5 ensures privacy and security notific...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
SLEM 5 must disable the x86 Ctrl-Alt-Delete 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 High Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
SLEM 5 with a basic input/output system (BIOS) must require authentication upon booting into single-user and maintenance modes.
<VulnDiscussion>To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DOD-ap...Rule High Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
SLEM 5 with Unified Extensible Firmware Interface (UEFI) implemented must require authentication upon booting into single-user mode and maintenance.
<VulnDiscussion>If the system allows a user to boot into single-user or maintenance mode without authentication, any user that invokes single...Rule High Severity -
SRG-OS-000138-GPOS-00069
<GroupDescription></GroupDescription>Group -
SLEM 5 must restrict access to the kernel message buffer.
<VulnDiscussion>Restricting access to the kernel message buffer limits access only to root. This prevents attackers from gaining additional s...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
SLEM 5 kernel core dumps must be disabled unless needed.
<VulnDiscussion>Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a co...Rule Medium Severity -
SRG-OS-000433-GPOS-00193
<GroupDescription></GroupDescription>Group -
Address space layout randomization (ASLR) must be implemented by SLEM 5 to protect memory from unauthorized code execution.
<VulnDiscussion>Some adversaries launch attacks with the intent of executing code in nonexecutable regions of memory or in memory locations t...Rule Medium Severity -
SRG-OS-000433-GPOS-00192
<GroupDescription></GroupDescription>Group -
SLEM 5 must implement kptr-restrict to prevent the leaking of internal kernel addresses.
<VulnDiscussion>Some adversaries launch attacks with the intent of executing code in nonexecutable regions of memory or in memory locations t...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
Vendor-packaged SLEM 5 security patches and updates must be installed and up to date.
<VulnDiscussion>Timely patching is critical for maintaining the operational availability, confidentiality, and integrity of information techn...Rule Medium Severity
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