SV-38434r1: The at directory must be owned by root, bin, or sys. | HP-UX 11.31 Security Technical Implementation Guide

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Assessment Title

Rule Text

The at directory must be owned by root, bin, or sys.

Description

Discussion Text

If the owner of the at directory is not root, bin, or sys, unauthorized users could be allowed to view or edit files containing sensitive information within the directory.

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:192
# The at directory must be owned by root, bin, or sys.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# /var/spool/cron/atjobs directory owned by root, bin, or sys
# file_object (file_test)
test_1() {
  ( [ "$(stat -c '%u' '/var/spool/cron/atjobs')" -eq 0 ] ) || ( [ "$(stat -c '%u' '/var/spool/cron/atjobs')" -eq 2 ] ) || ( [ "$(stat -c '%u' '/var/spool/cron/atjobs')" -eq 3 ] )
}
# /var/spool/atjobs directory owned by root, bin, or sys
# file_object (file_test)
test_2() {
  ( [ "$(stat -c '%u' '/var/spool/atjobs')" -eq 0 ] ) || ( [ "$(stat -c '%u' '/var/spool/atjobs')" -eq 2 ] ) || ( [ "$(stat -c '%u' '/var/spool/atjobs')" -eq 3 ] )
}
# /var/spool/at directory owned by root, bin, or sys
# file_object (file_test)
test_3() {
  ( [ "$(stat -c '%u' '/var/spool/at')" -eq 0 ] ) || ( [ "$(stat -c '%u' '/var/spool/at')" -eq 2 ] ) || ( [ "$(stat -c '%u' '/var/spool/at')" -eq 3 ] )
}

if ( test_1 && test_2 && test_3 ); 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:192
if [ ! -d "/var/spool/cron/atjobs" ] && [ ! -d "/var/spool/atjobs" ] && [ ! -d "/var/spool/at" ]; then echo "PASS"; exit 0; fi
if [ -d "/var/spool/cron/atjobs" ] && [ $(stat -c "%u" "/var/spool/cron/atjobs") -eq 0 ] || [ $(stat -c "%u" "/var/spool/cron/atjobs") -eq 2 ] || [ $(stat -c "%u" "/var/spool/cron/atjobs") -eq 3 ]; then :; else echo "FAIL"; exit 1; fi
if [ -d "/var/spool/atjobs" ] && [ $(stat -c "%u" "/var/spool/atjobs") -eq 0 ] || [ $(stat -c "%u" "/var/spool/atjobs") -eq 2 ] || [ $(stat -c "%u" "/var/spool/atjobs") -eq 3 ]; then :; else echo "FAIL"; exit 1; fi
if [ -d "/var/spool/at" ] && [ $(stat -c "%u" "/var/spool/at") -eq 0 ] || [ $(stat -c "%u" "/var/spool/at") -eq 2 ] || [ $(stat -c "%u" "/var/spool/at") -eq 3 ]; then :; else echo "FAIL"; exit 1; fi
echo "PASS"; exit 0

Remediation

Change the owner of the existing at directory to root, bin, or sys.
# chown root <at directory>

(Replace root with another system group and/or <at directory> with a different at directory as necessary.)