Red Hat Enterprise Linux 9 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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RHEL 9 must have the sudo package installed.
<VulnDiscussion>"sudo" is a program designed to allow a system administrator to give limited root privileges to users and log root activity. ...Rule Medium Severity -
SRG-OS-000373-GPOS-00156
<GroupDescription></GroupDescription>Group -
RHEL 9 must require reauthentication when using the "sudo" command.
<VulnDiscussion>Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operat...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must use the invoking user's password for privilege escalation when using "sudo".
<VulnDiscussion>If the rootpw, targetpw, or runaspw flags are defined and not disabled, by default the operating system will prompt the invok...Rule Medium Severity -
SRG-OS-000373-GPOS-00156
<GroupDescription></GroupDescription>Group -
RHEL 9 must require users to reauthenticate for privilege escalation.
<VulnDiscussion>Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operati...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must configure the use of the pam_faillock.so module in the /etc/pam.d/system-auth file.
<VulnDiscussion>If the pam_faillock.so module is not loaded, the system will not correctly lockout accounts to prevent password guessing atta...Rule Medium Severity -
SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
RHEL 9 must restrict the use of the "su" command.
<VulnDiscussion>The "su" program allows to run commands with a substitute user and group ID. It is commonly used to run commands as the root ...Rule Medium Severity -
SRG-OS-000370-GPOS-00155
<GroupDescription></GroupDescription>Group -
RHEL 9 fapolicy module must be installed.
<VulnDiscussion>The organization must identify authorized software programs and permit execution of authorized software. The process used to ...Rule Medium Severity -
SRG-OS-000370-GPOS-00155
<GroupDescription></GroupDescription>Group -
RHEL 9 fapolicy module must be enabled.
<VulnDiscussion>The organization must identify authorized software programs and permit execution of authorized software. The process used to ...Rule Medium Severity -
SRG-OS-000069-GPOS-00037
<GroupDescription></GroupDescription>Group -
RHEL 9 must ensure the password complexity module in the system-auth file is configured for three retries or less.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must not allow blank or null passwords.
<VulnDiscussion>If an account has an empty password, anyone could log in and run commands with the privileges of that account. Accounts with ...Rule High Severity -
RHEL 9 must ensure the password complexity module is enabled in the password-auth file.
<VulnDiscussion>Enabling PAM password complexity permits enforcement of strong passwords and consequently makes the system less prone to dict...Rule Medium Severity
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