SV-4385r2: The system must not use .forward files. | AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

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Assessment Title

Rule Text

The system must not use .forward files.

Description

Discussion Text

The .forward file allows users to automatically forward mail to another system. Use of .forward files could allow the unauthorized forwarding of mail and could potentially create mail loops which could degrade system performance.

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 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.

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:262
export HOME=$(getent passwd "$USER" | cut -d: -f6)
if [ ! -d "$HOME" ]; then echo "PASS"; exit 0; fi
for path in $(find "$HOME" -maxdepth 1 -name ".forward" 2>/dev/null); do [ -f "$path" ] && { echo "FAIL"; exit 1; }; done
echo "PASS"
exit 0

Remediation

Remove .forward files from the system.