SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

The SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide (V1 R12) has 550 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V1 · R12

CurrentPublished Fri Oct 26 2018

The system must disable accounts after three consecutive unsuccessful login attempts.

SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Assessment Title

Rule Text

The system must disable accounts after three consecutive unsuccessful login attempts.

Description

Discussion Text

Disabling accounts after a limited number of unsuccessful login attempts improves protection against password guessing attacks.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-766

Rule

SV-44834r1_rule

Severity

medium

Rule Version

GEN000460

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Check the pam_tally configuration.
# more /etc/pam.d/login
Confirm the following line is configured, before the "common-auth" file is included:
auth     required       pam_tally.so deny=3 onerr=fail
# more /etc/pam.d/sshd
Confirm the following line is configured, before the "common-auth" file is included:
auth     required       pam_tally.so deny=3 onerr=fail

If no such line is found, this is a finding.

Implementation Procedure

Fix Text

Edit /etc/pam.d/login and/or /etc/pam.d/sshd and add the following line, before the "common-auth" file is included:
auth     required       pam_tally.so deny=3 onerr=fail

STIG check 428 of 550 in the SUSE Linux Enterprise Server v11 for System z STIG checklist

← Previous · V-765Successful and unsuccessful logins and logouts must be logged.Next · V-768 →The delay between login prompts following a failed login attempt must be at least 4 seconds.