UBTU-24-400340 - Ubuntu 24.04 LTS must be configured such that Pluggable Authentication Module (PAM) prohibits the use of cached authentications after one day.

Information

If cached authentication information is out-of-date, the validity of the authentication information may be questionable.

Solution

Configure PAM to prohibit the use of cached authentications after one day. Add or change the following line in "/etc/sssd/sssd.conf" just below the line "[pam]":

offline_credentials_expiration = 1

Note: It is valid for this configuration to be in a file with a name that ends with ".conf" and does not begin with a "." in the "/etc/sssd/conf.d/" directory instead of the "/etc/sssd/sssd.conf" file.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CAN_Ubuntu_24-04_LTS_V1R1_STIG.zip

Item Details

Category: IDENTIFICATION AND AUTHENTICATION

References: 800-53|IA-5(13), CAT|III, CCI|CCI-002007, Rule-ID|SV-270734r1066691_rule, STIG-ID|UBTU-24-400340, Vuln-ID|V-270734

Plugin: Unix

Control ID: 3b3844f3699cb8eeb5aa60df27d1290c6f95f64a43dafe1b049b8a3fc7f21928