Red Hat Enterprise Linux 8 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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RHEL 8 must employ FIPS 140-2 approved cryptographic hashing algorithms for all stored passwords.
<VulnDiscussion>The system must use a strong hashing algorithm to store the password. Passwords need to be protected at all times, and encry...Rule Medium Severity -
SRG-OS-000073-GPOS-00041
<GroupDescription></GroupDescription>Group -
The RHEL 8 shadow password suite must be configured to use a sufficient number of hashing rounds.
<VulnDiscussion>The system must use a strong hashing algorithm to store the password. The system must use a sufficient number of hashing roun...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
RHEL 8 operating systems booted with United Extensible Firmware Interface (UEFI) must require authentication 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 High Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
RHEL 8 operating systems booted with a BIOS must require authentication 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 High Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
RHEL 8 operating systems must require authentication upon booting into rescue 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 -
The RHEL 8 pam_unix.so module must be configured in the password-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-000120-GPOS-00061
<GroupDescription></GroupDescription>Group -
RHEL 8 must prevent system daemons from using Kerberos for 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-000120-GPOS-00061
<GroupDescription></GroupDescription>Group -
The krb5-workstation package must not be installed on RHEL 8.
<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-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
RHEL 8 must use a Linux Security Module configured to enforce limits on system services.
<VulnDiscussion>Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...Rule Medium Severity -
SRG-OS-000134-GPOS-00068
<GroupDescription></GroupDescription>Group -
RHEL 8 must have policycoreutils package installed.
<VulnDiscussion>Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...Rule Low Severity -
A sticky bit must be set on all RHEL 8 public directories to prevent unauthorized and unintended information transferred via shared system resources.
<VulnDiscussion>Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of infor...Rule Medium Severity
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