SV-35139r1: The SSH daemon must use privilege separation. | HP-UX 11.31 Security Technical Implementation Guide

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Assessment Title

Rule Text

The SSH daemon must use privilege separation.

Description

Discussion Text

SSH daemon privilege separation causes the SSH process to drop root privileges when not needed, which would decrease the impact of software vulnerabilities in the unprivileged section.

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 11.31 DISA DPMS Target HP-UX 11.31 2171

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:332
# The SSH daemon must use privilege separation.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# UsePrivilegeSeparation Setting OK
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  (sed -En 's/^[ 	]*[Uu][Ss][Ee][Pp][Rr][Ii][Vv][Ii][Ll][Ee][Gg][Ee][Ss][Ee][Pp][Aa][Rr][Aa][Tt][Ii][Oo][Nn][ 	]+(yes|no)[ 	]*$/\1/p' '/opt/ssh/etc/sshd_config') | grep -qxF 'yes'
}

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:332
path="/opt/ssh/etc/sshd_config"
if [ ! -f "$path" ]; then echo "PASS"; exit 0; fi
grep -q "^[ \t]*[Uu][Ss][Ee][Pp][Rr][Ii][Vv][Ee][Gg][Ee][Ss][Ee][Pp][Aa][Rr][Aa][Tt][Ii][Oo][Nn][ \t]+yes[ \t]*$" "$path"; if [ $? -eq 0 ]; then echo "PASS"; exit 0; else echo "FAIL"; exit 1; fi

Remediation

Edit the SSH daemon configuration and add or edit the UsePrivilegeSeparation setting value to yes.