Red Hat Enterprise Linux 8 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000373-GPOS-00156
<GroupDescription></GroupDescription>Group -
RHEL 8 must use a separate file system for /var/tmp.
<VulnDiscussion>The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...Rule Medium Severity -
RHEL 8 must require re-authentication when using the "sudo" command.
<VulnDiscussion>Without re-authentication, users may access resources or perform tasks for which they do not have authorization. When opera...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
RHEL 8 must display a banner before granting local or remote access to the system via a graphical user logon.
<VulnDiscussion>Display of a standardized and approved use notification before granting access to the operating system ensures privacy and se...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
RHEL 8 operating systems booted with United Extensible Firmware Interface (UEFI) must require a unique superusers name upon booting into single-user mode and maintenance.
<VulnDiscussion>If the system does not require valid authentication before it boots into single-user or maintenance mode, anyone who invokes ...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
RHEL 8 operating systems booted with a BIOS must require a unique superusers name upon booting into single-user and maintenance modes.
<VulnDiscussion>If the system does not require valid authentication before it boots into single-user or maintenance mode, anyone who invokes ...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
RHEL 8 operating systems must require authentication upon booting into emergency mode.
<VulnDiscussion>If the system does not require valid root authentication before it boots into emergency or rescue mode, anyone who invokes em...Rule Medium Severity -
SRG-OS-000120-GPOS-00061
<GroupDescription></GroupDescription>Group -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The RHEL 8 pam_unix.so module must be configured in the system-auth file to use a FIPS 140-2 approved cryptographic hashing algorithm for system authentication.
<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-000163-GPOS-00072
<GroupDescription></GroupDescription>Group -
RHEL 8 must be configured so that all network connections associated with SSH traffic are terminated after 10 minutes of becoming unresponsive.
<VulnDiscussion>Terminating an unresponsive SSH session within a short time period reduces the window of opportunity for unauthorized personn...Rule Medium Severity -
SRG-OS-000250-GPOS-00093
<GroupDescription></GroupDescription>Group -
The RHEL 8 SSH daemon must be configured to use system-wide crypto policies.
<VulnDiscussion>Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote acce...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 8 must have the packages required to use the hardware random number generator entropy gatherer service.
<VulnDiscussion>The most important characteristic of a random number generator is its randomness, namely its ability to deliver random number...Rule Low Severity
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