AlmaLinux OS 9 must enable the Pluggable Authentication Module (PAM) interface for SSHD.

An XCCDF Rule

Description

When UsePAM is set to "yes", PAM runs through account and session types properly. This is important when restricted access to services based off of IP, time, or other factors of the account is needed. Additionally, this ensures users can inherit certain environment variables on login or disallow access to the server.

ID: SV-269420r1050303_rule
Version: ALMA-09-040390
Severity: High
References: CCI-000877
Updated: about 2 months ago

Remediation Templates

Configure the SSH daemon to use PAM.

Add the following line to "/etc/ssh/sshd_config", or uncomment the line and set the value to "yes":

UsePAM yes
Alternatively, add the setting to an include file if the line "Include /etc/ssh/sshd_config.d/*.conf" is found at the top of the "/etc/ssh/sshd_config" file:

$ cat << EOF | tee /etc/ssh/sshd_config.d/pam.conf
UsePAM yes
EOF

Restart the SSH daemon for the settings to take effect:

$ systemctl restart sshd.service

AlmaLinux OS 9 must enable the Pluggable Authentication Module (PAM) interface for SSHD.

Description

Remediation Templates

A Manual Procedure