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 | 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| If cached authentication information is out of date, the validity of the authentication information may be questionable.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-65129r996618_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 |