SV-219157r958478: The Ubuntu operating system must not have the Network Information Service (NIS) package installed. | Canonical Ubuntu 18.04 LTS STIG SCAP Benchmark

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Assessment Title

Rule Text

The Ubuntu operating system must not have the Network Information Service (NIS) package installed.

Description

Discussion Text

Removing the Network Information Service (NIS) package decreases the risk of the accidental (or intentional) activation of NIS or NIS+ services.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381SV-109643V-100539

References

DPMS Target Canonical Ubuntu 18.04 LTS DISA DPMS Target Canonical Ubuntu 18.04 LTS 4055

Checks

DISA STIG (Manual Reference)

Verify that the Network Information Service (NIS) package is not installed on the Ubuntu operating system.

Check to see if the NIS package is installed with the following command:

# dpkg -l | grep nis

If the NIS package is installed, this is a finding.

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.stig.ubuntu1804:def:109
# The Ubuntu operating system must not have the Network Information Service (NIS) package installed.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# package nis is not installed
# dpkginfo_object (dpkginfo_test)
test_1() {
  ! ( grep -A1 '^Package: nis$' /var/lib/dpkg/status &>/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.stig.ubuntu1804:def:109
if [ ! -f "/var/lib/dpkg/status" ]; then echo "PASS"; exit 0; fi
if grep -q "^Package:\s+nis" /var/lib/dpkg/status; then echo "FAIL"; exit 1; fi
echo "PASS"
exit 0

Remediation

Configure the Ubuntu operating system to disable non-essential capabilities by removing the Network Information Service (NIS) package from the system with the following command:

# sudo apt-get remove nis