← Back to SUSE Linux Enterprise Server 15 Security Technical Implementation Guide

V-235006

CAT II (Medium)

The SUSE operating system must be configured to not overwrite Pluggable Authentication Modules (PAM) configuration on package changes.

Rule ID

SV-235006r991589_rule

STIG

SUSE Linux Enterprise Server 15 Security Technical Implementation Guide

Version

V2R7

CCIs

None

Discussion

The "pam-config" command line utility automatically generates a system PAM configuration as packages are installed, updated, or removed from the system. "pam-config" removes configurations for PAM modules and parameters that it does not know about. It may render ineffective PAM configuration by the system administrator and thus impact system security.

Check Content

Verify the SUSE operating system is configured to not overwrite PAM configuration on package changes.

Check that soft links between PAM configuration files are removed with the following command:

> find /etc/pam.d/ -type l -iname "common-*"

If any results are returned, this is a finding.

Fix Text

Copy the PAM configuration files to their static locations and remove the SUSE operating system soft links for the PAM configuration files with the following command:

> sudo sh -c 'for X in /etc/pam.d/common-*-pc; do cp -ivp --remove-destination $X ${X:0:-3}; done'

Additional information on the configuration of multifactor authentication on the SUSE operating system can be found at https://www.suse.com/communities/blog/configuring-smart-card-authentication-suse-linux-enterprise/.