SV-35177r1: IP forwarding for IPv4 must not be enabled, unless the system is a router. | HP-UX 11.31 Security Technical Implementation Guide

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Assessment Title

Rule Text

IP forwarding for IPv4 must not be enabled, unless the system is a router.

Description

Discussion Text

If the system is configured for IP forwarding and is not a designated router, it could be used to bypass network security by providing a path for communication not filtered by network devices.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366

Additional Details

Responsibility

System Administrator

IA Controls

ECSC-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.

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:338


if [ ! -f "/etc/rc.config.d/nddconf" ]; then echo "PASS"; exit 0; fi
if grep -q "^ip_forwarding[[:space:]]*=.*[[:space:]]*0$" "/etc/rc.config.d/nddconf"; then echo "PASS"; exit 0; else echo "FAIL"; exit 1; fi

Remediation

Edit /etc/rc.config.d/nddconf and set the ip_forwarding option to 0.