Red Hat Enterprise Linux 9 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must have the openssh-clients package installed.
<VulnDiscussion>This package includes utilities to make encrypted connections and transfer files securely to SSH servers.</VulnDiscussion&...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
RHEL 9 must display the Standard Mandatory DOD Notice and Consent Banner before granting local or remote access to the system via a SSH logon.
<VulnDiscussion>The warning message reinforces policy awareness during the logon process and facilitates possible legal action against attack...Rule Medium Severity -
SRG-OS-000032-GPOS-00013
<GroupDescription></GroupDescription>Group -
RHEL 9 must log SSH connection attempts and failures to the server.
<VulnDiscussion>SSH provides several logging levels with varying amounts of verbosity. "DEBUG" is specifically not recommended other than str...Rule Medium Severity -
SRG-OS-000105-GPOS-00052
<GroupDescription></GroupDescription>Group -
RHEL 9 SSHD must accept public key authentication.
<VulnDiscussion>Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifactor a...Rule Medium Severity -
SRG-OS-000106-GPOS-00053
<GroupDescription></GroupDescription>Group -
RHEL 9 must not permit direct logons to the root account using remote access via SSH.
<VulnDiscussion>Even though the communications channel may be encrypted, an additional layer of security is gained by extending the policy of...Rule Medium Severity
Node 2
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