Red Hat Enterprise Linux 9 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000120-GPOS-00061
<GroupDescription></GroupDescription>Group -
RHEL 9 must prevent system daemons from using Kerberos for authentication.
<VulnDiscussion>Unapproved mechanisms used for authentication to the cryptographic module are not verified; therefore, cannot be relied upon ...Rule Medium Severity -
SRG-OS-000066-GPOS-00034
<GroupDescription></GroupDescription>Group -
RHEL 9, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor.
<VulnDiscussion>Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate n...Rule Medium Severity -
SRG-OS-000068-GPOS-00036
<GroupDescription></GroupDescription>Group -
RHEL 9 must map the authenticated identity to the user or group account for PKI-based authentication.
<VulnDiscussion>Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the indivi...Rule Medium Severity -
SRG-OS-000383-GPOS-00166
<GroupDescription></GroupDescription>Group -
RHEL 9 must prohibit the use of cached authenticators after one day.
<VulnDiscussion>If cached authentication information is out-of-date, the validity of the authentication information may be questionable.</...Rule Medium Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
RHEL 9 must have the AIDE package installed.
<VulnDiscussion>Without verification of the security functions, security functions may not operate correctly, and the failure may go unnotice...Rule Medium Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
RHEL 9 must routinely check the baseline configuration for unauthorized changes and notify the system administrator when anomalies in the operation of any security functions are discovered.
<VulnDiscussion>Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must use a file integrity tool that is configured to use FIPS 140-3-approved cryptographic hashes for validating file contents and directories.
<VulnDiscussion>RHEL 9 installation media ships with an optional file integrity tool called Advanced Intrusion Detection Environment (AIDE). ...Rule Medium Severity -
SRG-OS-000256-GPOS-00097
<GroupDescription></GroupDescription>Group -
RHEL 9 must use cryptographic mechanisms to protect the integrity of audit tools.
<VulnDiscussion>Protecting the integrity of the tools used for auditing purposes is a critical step toward ensuring the integrity of audit in...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must be configured so that the file integrity tool verifies Access Control Lists (ACLs).
<VulnDiscussion>RHEL 9 installation media ships with an optional file integrity tool called Advanced Intrusion Detection Environment (AIDE). ...Rule Low Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must be configured so that the file integrity tool verifies extended attributes.
<VulnDiscussion>RHEL 9 installation media ships with an optional file integrity tool called Advanced Intrusion Detection Environment (AIDE). ...Rule Low Severity
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