SV-38716r1: The system must not have the PCNFS service active. | AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

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Assessment Title

Rule Text

The system must not have the PCNFS service active.

Description

Discussion Text

The PCNFS service predates Microsoft’s SMB specifications. If a similar service is needed to share files from a Windows based OS to a UNIX based OS, consider SAMBA.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001436

Additional Details

Responsibility

System Administrator

IA Controls

ECSC-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:400
# The system must not have the PCNFS service active.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# pcnfs daemon not running
# inetd_object (inetd_test)
test_1() {
  (cat /etc/inetd.conf 2>/dev/null) | grep -Pq '.*/rpc.pcnfsd$'
}

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.aix11:def:400

if [ ! -s /etc/inetd.conf ]; then echo "PASS"; exit 0; fi
if grep -q "^\.*\/rpc\.pcnfsd\$$" /etc/inetd.conf; then echo "FAIL"; exit 1; fi
echo "PASS"
exit 0

Remediation

Edit /etc/inetd.conf and comment out the PCNFS service line. Restart the inetd service.   
# refresh -s inetd