SLEM 5 must enforce a delay of at least five seconds between logon prompts following a failed logon attempt via pluggable authentication modules (PAM).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-261365	SLEM-05-412025	SV-261365r996541_rule		Medium

Description
Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account.

STIG	Date
SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide	2024-06-04

Details

Check Text ( C-65094r996540_chk )
Verify SLEM 5 enforces a delay of at least five seconds between logon prompts following a failed logon attempt with the following command: > grep pam_faildelay /etc/pam.d/common-auth auth required pam_faildelay.so delay=5000000 If the value of "delay" is not set to "5000000" or greater, "delay" is missing, the line is commented out, or the "pam_faildelay" line is missing completely, this is a finding.

Check Text ( C-65094r996540_chk )

Verify SLEM 5 enforces a delay of at least five seconds between logon prompts following a failed logon attempt with the following command:

> grep pam_faildelay /etc/pam.d/common-auth
auth required pam_faildelay.so delay=5000000

If the value of "delay" is not set to "5000000" or greater, "delay" is missing, the line is commented out, or the "pam_faildelay" line is missing completely, this is a finding.

Fix Text (F-65002r995961_fix)
Configure SLEM 5 to enforce a delay of at least five seconds between logon prompts following a failed logon attempt. Add or modify the following line in the "/etc/pam.d/common-auth" file: auth required pam_faildelay.so delay=5000000