STIGQter: STIG Summary: SLES 12 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

If Network Security Services (NSS) is being used by the SUSE operating system it must prohibit the use of cached authentications after one day.

DISA Rule

SV-217166r603262_rule

Vulnerability Number

V-217166

Group Title

SRG-OS-000383-GPOS-00166

Rule Version

SLES-12-010670

Severity

CAT II

CCI(s)

• CCI-002007 - The information system prohibits the use of cached authenticators after an organization-defined time period.

Weight

10

Fix Recommendation

Configure NSS, if used by the SUSE operating system, 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 "[nss]":

memcache_timeout = 86400

Check Contents

If NSS is not used on the operating system, this is Not Applicable.

If NSS is used by the SUSE operating system, verify it prohibits the use of cached authentications after one day.

Check that cached authentications cannot be used after one day with the following command:

# sudo grep -i "memcache_timeout" /etc/sssd/sssd.conf

memcache_timeout = 86400

If "memcache_timeout" has a value greater than "86400", or is missing, this is a finding.

Vulnerability Number

V-217166

Documentable

False

Rule Version

SLES-12-010670

Severity Override Guidance

If NSS is not used on the operating system, this is Not Applicable.

If NSS is used by the SUSE operating system, verify it prohibits the use of cached authentications after one day.

Check that cached authentications cannot be used after one day with the following command:

# sudo grep -i "memcache_timeout" /etc/sssd/sssd.conf

memcache_timeout = 86400

If "memcache_timeout" has a value greater than "86400", or is missing, this is a finding.

Check Content Reference

M

Target Key

4033

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