STIGQter STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 must prohibit the use of cached authenticators after one day.

DISA Rule

SV-282597r1200771_rule

Vulnerability Number

V-282597

Group Title

SRG-OS-000383-GPOS-00166

Rule Version

TOSS-05-000368

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the SSSD 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

Check Contents

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.

Vulnerability Number

V-282597

Documentable

False

Rule Version

TOSS-05-000368

Severity Override Guidance

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.

Check Content Reference

M

Target Key

5738