SV-35080r1: The services file must be group-owned by root, bin, sys, or other. | HP-UX 11.31 Security Technical Implementation Guide

Loading benchmark…

Assessment Title

Rule Text

The services file must be group-owned by root, bin, sys, or other.

Description

Discussion Text

Failure to give ownership of system configuration files to root or a system group provides the designated owner and unauthorized users with the potential to change the system configuration which could weaken the system's security posture.

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:236
# The services file must be group-owned by root, bin, sys, or other.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Test group of /etc/services is root
# file_object (file_test)
test_1() {
  [ "$(stat -c '%g' '/etc/services')" -eq 0 ]
}
# Test existence of group bin
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  grep -Pq '^bin:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /etc/services is bin
# file_object (file_test)
test_3() {
  [ "$(stat -c '%g' '/etc/services')" = "$(sed -En 's/^bin:[^:]*:([0-9]+):/\1/p' '/etc/group')" ]
}
# Test existence of group sys
# textfilecontent54_object (textfilecontent54_test)
test_4() {
  grep -Pq '^sys:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /etc/services is sys
# file_object (file_test)
test_5() {
  [ "$(stat -c '%g' '/etc/services')" = "$(sed -En 's/^sys:[^:]*:([0-9]+):/\1/p' '/etc/group')" ]
}
# Test existence of group other
# textfilecontent54_object (textfilecontent54_test)
test_6() {
  grep -Pq '^other:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /etc/services is other
# file_object (file_test)
test_7() {
  [ "$(stat -c '%g' '/etc/services')" = "$(sed -En 's/^other:[^:]*:([0-9]+):/\1/p' '/etc/group')" ]
}

if ( test_1 || ( test_2 && test_3 ) || ( test_4 && test_5 ) || ( test_6 && test_7 ) ); 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:236

if [ ! -f "/etc/services" ]; then
  echo "PASS"
  exit 0
fi

if [ "$(stat -c '%G' /etc/services)" = "root" ] || [ "$(grep -E '^bin:[^:]*:' /etc/group | cut -d: -f3)" = "$(stat -c '%G' /etc/services)" ] || [ "$(grep -E '^sys:[^:]*:' /etc/group | cut -d: -f3)" = "$(stat -c '%G' /etc/services)" ]; then
  echo "PASS"
  exit 0
else
  echo "FAIL"
  exit 1
fi

Remediation

Change the group-owner of the services file.

Procedure:
# chgrp root /etc/services