SV-217130r1038967: The SUSE operating system must be configured to create or update passwords with a maximum lifetime of 60 days. | SUSE Linux Enterprise Server 12 STIG SCAP Benchmark

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Assessment Title

Rule Text

The SUSE operating system must be configured to create or update passwords with a maximum lifetime of 60 days.

Description

Discussion Text

Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the SUSE operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that the SUSE operating system passwords could be compromised.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000199Not mappedCCI-004066SV-91811V-77115

References

DPMS Target SUSE Linux Enterprise Server 12 DISA DPMS Target SUSE Linux Enterprise Server 12 4033

Checks

DISA STIG (Manual Reference)

Verify that the SUSE operating system is configured to create or update passwords with a maximum password age of 60 days or less.

Check that the SUSE operating system enforces 60 days or less as the maximum password age with the following command:

> grep '^PASS_MAX_DAYS' /etc/login.defs

The DoD requirement is "60" days or less (greater than zero, as zero days will lock the account immediately).

If no output is produced, or if PASS_MAX_DAYS is not set to "60" days or less, this is a finding.

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

#!/bin/bash
# Reconstructed from oval:mil.disa.stig.sles12:def:122
# The SUSE operating system must be configured to create or update passwords with a maximum lifetime of 60 days.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# textfilecontent54_object (textfilecontent54_test)
test_1() {
  ( [ "$(sed -En 's/^\s*PASS_MAX_DAYS\s+(\d*)/\1/p' '/etc/login.defs')" -gt 0 ] ) && ( [ "$(sed -En 's/^\s*PASS_MAX_DAYS\s+(\d*)/\1/p' '/etc/login.defs')" -le 60 ] )
}

if test_1; then
  echo "PASS"
else
  echo "FAIL"
fi

Assessment Script Powered by AISandbox-executed

A standalone Shell script to assess this control automatically. Review before running it in your environment.

Syntax-checked and actually executed in an isolated sandbox (not the real system this checks) — confirmed to run without errors.

#!/bin/sh
# oval:mil.disa.stig.sles12:def:122
if [ ! -f "/etc/login.defs" ]; then echo "PASS"; exit 0; fi; \
awk '/^PASS_MAX_DAYS/ {print $2}' /etc/login.defs | grep -qE '^[0-5][0-9]$' && [ $(awk '/^PASS_MAX_DAYS/ {print $2}' /etc/login.defs) -le 60 ] && echo "PASS" || echo "FAIL"; exit 1

Remediation

Configure the SUSE operating system to enforce a maximum password age of 60 days or less.

Edit the file "/etc/login.defs" and add or correct the following line. Replace [DAYS] with the appropriate amount of days:

PASS_MAX_DAYS [DAYS]

The DoD requirement is 60 days or less (greater than zero, as zero days will lock the account immediately).