SV-40385r1: The inetd.conf file, xinetd.conf file, and the xinetd.d directory must be group-owned by bin, sys, or system. | AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

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Assessment Title

Rule Text

The inetd.conf file, xinetd.conf file, and the xinetd.d directory must be group-owned by bin, sys, or system.

Description

Discussion Text

Failure to give ownership of sensitive files or utilities to system groups may provide unauthorized users with the potential to access sensitive information or 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 AIX 6.1 DISA DPMS Target AIX 6.1 2176

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.aix11:def:223
# The inetd.conf file, xinetd.conf file, and the xinetd.d directory must be group-owned by bin, sys, or system.
# 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/inetd.conf is root
# file_object (file_test)
test_1() {
  [ "$(stat -c '%g' '/etc/inetd.conf')" -eq 0 ]
}
# Test existence of group bin
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  grep -Pq '^bin:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /etc/inetd.conf is bin
# file_object (file_test)
test_3() {
  [ "$(stat -c '%g' '/etc/inetd.conf')" = "$(sed -En 's/^bin:[^:]*:([0-9]+):/\1/p' '/etc/group')" ]
}
# Test existence of group sys
# textfilecontent54_object (textfilecontent54_test)
test_4() {
  grep -Pq '^sys:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /etc/inetd.conf is sys
# file_object (file_test)
test_5() {
  [ "$(stat -c '%g' '/etc/inetd.conf')" = "$(sed -En 's/^sys:[^:]*:([0-9]+):/\1/p' '/etc/group')" ]
}
# Test existence of group system
# textfilecontent54_object (textfilecontent54_test)
test_6() {
  grep -Pq '^system:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /etc/inetd.conf is system
# file_object (file_test)
test_7() {
  [ "$(stat -c '%g' '/etc/inetd.conf')" = "$(sed -En 's/^system:[^:]*:([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:mil.disa.fso.aix11:def:223 compliance check

if [ ! -f "/etc/inetd.conf" ]; then echo "PASS"; exit 0; fi
if [ "$(stat -c "%G" /etc/inetd.conf)" = "bin" ] || [ "$(stat -c "%G" /etc/inetd.conf)" = "sys" ] || [ "$(stat -c "%G" /etc/inetd.conf)" = "system" ]; then echo "PASS"; exit 0; fi
echo "FAIL"; exit 1

Remediation

Change the group ownership of the inetd configuration file.

Procedure:
# chgrp system /etc/inetd.conf