SV-35052r1: The SSH daemon must restrict login ability to specific users and/or groups. | HP-UX 11.23 Security Technical Implementation Guide

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Assessment Title

Rule Text

The SSH daemon must restrict login ability to specific users and/or groups.

Description

Discussion Text

Restricting SSH logins to a limited group of users, such as system administrators, prevents password guessing and other SSH attacks from reaching system accounts and other accounts not authorized for SSH access.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000225

Additional Details

Responsibility

System Administrator

IA Controls

ECLP-1

References

DPMS Target HP-UX 11.23 DISA DPMS Target HP-UX 11.23 2170

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.fso.hpux11:def:318
# The SSH daemon must restrict login ability to specific users and/or groups.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# SSH daemon is configured to restrict logins to specific users and/or groups
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  grep -Pq '^[ 	]*[Aa][Ll][Ll][Oo][Ww]([Gg][Rr][Oo][Uu][Pp][Ss]|[Uu][Ss][Ee][Rr][Ss])[ 	]+[^ 	

]+' '/opt/ssh/etc/sshd_config' &>/dev/null
}

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 Definition: oval:mil.disa.fso.hpux11:def:318
if [ ! -f "/opt/ssh/etc/sshd_config" ]; then echo "PASS"; exit 0; fi
if grep -q "^[ \t]*[Aa][Ll][Ll][Oo][Ww]([Gg][Rr][Oo][Uu][Pp][Ss]|[Uu][Ss][Ee][Rr][Ss])[ \t]+[^ \t\n\r]+" /opt/ssh/etc/sshd_config; then echo "PASS"; exit 0; fi
echo "FAIL"; exit 1

Remediation

Edit the SSH daemon configuration and add the appropriate keyword directive(s) and space-separated user/group names. The keyword order of precedence is as follows:

DenyUsers, AllowUsers, DenyGroups, AllowGroups