STIGQter STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

OL 8 must prohibit the use of cached authentications after one day.

DISA Rule

SV-248710r958828_rule

Vulnerability Number

V-248710

Group Title

SRG-OS-000383-GPOS-00166

Rule Version

OL08-00-020290

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 that the SSSD prohibits the use of cached authentications after one day.

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

Check that SSSD allows cached authentications with the following command:

$ sudo grep -ir cache_credentials /etc/sssd/sssd.conf /etc/sssd/conf.d/*.conf
cache_credentials = true

If "cache_credentials" is set to "false" or is 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 with the following command:

$ sudo grep -ir offline_credentials_expiration /etc/sssd/sssd.conf /etc/sssd/conf.d/*.conf
offline_credentials_expiration = 1

If "offline_credentials_expiration" is not set to a value of "1", this is a finding.

Vulnerability Number

V-248710

Documentable

False

Rule Version

OL08-00-020290

Severity Override Guidance

Verify that the SSSD prohibits the use of cached authentications after one day.

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

Check that SSSD allows cached authentications with the following command:

$ sudo grep -ir cache_credentials /etc/sssd/sssd.conf /etc/sssd/conf.d/*.conf
cache_credentials = true

If "cache_credentials" is set to "false" or is 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 with the following command:

$ sudo grep -ir offline_credentials_expiration /etc/sssd/sssd.conf /etc/sssd/conf.d/*.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

5416