V-282597

Discussion

If cached authentication information is out of date, the validity of the authentication information may be questionable.

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Verify the System Security Services Daemon (SSSD) prohibits the use of cached authentications after one day.

Note: If smart card authentication is not being used on the system, this requirement is not applicable.

Check that SSSD allows cached authentications using the following command:

$ sudo grep cache_credentials /etc/sssd/sssd.conf

cache_credentials = true

If "cache_credentials" is set to "false" or missing from the configuration file, this is not a finding and no further checks are required.

If "cache_credentials" is set to "true", check that SSSD prohibits the use of cached authentications after one day using the following command:

$ 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", this is a finding.