SLEM 5 must configure the Linux Pluggable Authentication Modules (PAM) to prohibit the use of cached offline authentications after one day.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-261400 | SLEM-05-631015 | SV-261400r996619_rule | CCI-002007 | 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| If cached authentication information is out of date, the validity of the authentication information may be questionable.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-261400r996619_chk)
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 (F-65037r996066_fix)
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