The SUSE operating system must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity after password expiration.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-234871	SLES-15-020050	SV-234871r928531_rule		Medium

Description
Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potentially obtain undetected access to the system. Owners of inactive accounts will not notice if unauthorized access to their user account has been obtained. The SUSE operating system needs to track periods of inactivity and disable application identifiers after 35 days of inactivity.

Description

Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potentially obtain undetected access to the system. Owners of inactive accounts will not notice if unauthorized access to their user account has been obtained. The SUSE operating system needs to track periods of inactivity and disable application identifiers after 35 days of inactivity.

STIG	Date
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide	2024-02-16

Details

Check Text ( C-38059r928529_chk )
Verify the SUSE operating system disables account identifiers after 35 days of inactivity since the password expiration. Check the account inactivity value by performing the following command: > sudo grep -i '^inactive' /etc/default/useradd INACTIVE=35 If no output is produced, or if "INACTIVE" is not set to a value greater than "0" and less than or equal to "35", this is a finding.

Fix Text (F-38022r928530_fix)
Configure the SUSE operating system to disable account identifiers after 35 days of inactivity since the password expiration. Run the following command to change the configuration for "useradd" to disable the account identifier after 35 days: > sudo useradd -D -f 35 DOD recommendation is 35 days, but a lower value greater than "0" is acceptable.