DISA STIGS Viewer

If Network Security Services (NSS) is being used by SLEM 5 it must prohibit the use of cached authentications after one day.

Overview

Finding ID Version Rule ID IA Controls Severity
V-261399 SLEM-05-631010 SV-261399r996617_rule   Medium
Description
If cached authentication information is out of date, the validity of the authentication information may be questionable.
STIG Date
SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide 2025-05-08

Details

Check Text (C-65128r996616_chk)
If NSS is used by SLEM 5, verify it prohibits the use of cached authentications after one day with the following command:

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

> sudo grep -i "memcache_timeout" /etc/sssd/sssd.conf
memcache_timeout = 86400

If "memcache_timeout" has a value greater than "86400", the line is commented out, or the line is missing, this is a finding.
Fix Text (F-65036r996063_fix)
Configure NSS, if used by SLEM 5, 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 "[nss]":

memcache_timeout = 86400