BaselineWatch
Desk
Your fleet and your work Fleetyour releases and the hardware they run onTriagewhat needs a decisionWatchlistthe products and platforms you runSaved searchesthe lists you come back to
This instance Sourceswhat is read, how often, under what termsDigestthe daily or weekly summary, and alerts
How it is drawn Appearancethe look and the colour schemeBrandingthe mark this instance wears
Owner sign-in

RHEL-09-411050 RHEL 9 must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to AC-2(3), IA-4 via CCI-003627, CCI-003628, CCI-000795

Title

RHEL 9 must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity.

Control

Verify that RHEL 9 account identifiers (individuals, groups, roles, and devices) are disabled after 35 days of inactivity with the following command: Check the account inactivity value by performing the following command: $ sudo grep -i inactive /etc/default/useradd INACTIVE=35 If "INACTIVE" is set to "-1", a value greater than "35", or is commented out, this is a finding.

Discussion

Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potentially obtain undetected access to the system. Disabling inactive accounts ensures that accounts which may not have been responsibly removed are not available to attackers who may have compromised their credentials. Owners of inactive accounts will not notice if unauthorized access to their user account has been obtained.

Related controls

CCI-000795, CCI-003627, CCI-003628

Fix

Configure RHEL 9 to disable account identifiers after 35 days of inactivity after the password expiration. Run the following command to change the configuration for useradd: $ sudo useradd -D -f 35 The recommendation is 35 days, but a lower value is acceptable.