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V-261400

CAT II (Medium)

SLEM 5 must configure the Linux Pluggable Authentication Modules (PAM) to prohibit the use of cached offline authentications after one day.

Rule ID

SV-261400r996619_rule

STIG

SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide

Version

V1R4

CCIs

CCI-002007

Discussion

If cached authentication information is out of date, the validity of the authentication information may be questionable.

Check Content

Verify that SLEM 5 PAM prohibits the use of cached off line authentications after one day with the following command:

Note: If SSSD is not being used on the operating system, this is not applicable.

     > sudo grep "offline_credentials_expiration" /etc/sssd/sssd.conf
     offline_credentials_expiration = 1

If "offline_credentials_expiration" is not set to a value of "1", the line is commented out, or the line is missing, this is a finding.

Fix Text

Configure SLEM 5 PAM to prohibit the use of cached authentications after one day.

Add or modify the following line in the "/etc/sssd/sssd.conf" file, below the line "[pam]":

offline_credentials_expiration = 1