If Network Security Services (NSS) is being used by SLEM 5 it must prohibit the use of cached authentications after one day.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-261399 | SRG-OS-000383-GPOS-00166 | SLEM-05-631010 | SV-261399r996617_rule | 2024-06-04 | 1 |
| Description |
|---|
| If cached authentication information is out of date, the validity of the authentication information may be questionable. |
| ℹ️ Check |
|---|
| 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 |
|---|
| 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 |