SV-35043r1: Files executed through a mail aliases file must have mode 0755 or less permissive. | HP-UX 11.23 Security Technical Implementation Guide

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Assessment Title

Rule Text

Files executed through a mail aliases file must have mode 0755 or less permissive.

Description

Discussion Text

If a file executed through a mail alias file has permissions greater than 0755, it can be modified by an unauthorized user and may contain malicious code or instructions possibly compromising the system.

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 HP-UX 11.23 DISA DPMS Target HP-UX 11.23 2170

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:262
if [ ! -f /etc/mail/aliases ]; then echo "PASS"; exit 0; fi
for path in $(grep -oP '^[^#]*\"?[|]([^, \t\n\r]+)/' /etc/mail/aliases); do if [ -x "$path" ] && [ ! -w "$path" ] && [ ! -w $(dirname "$path") ] && [ ! -w $(dirname $(dirname "$path")) ]; then continue; else echo "FAIL"; exit 1; fi; done; echo "PASS"; exit 0

Remediation

Use the chmod command to change the access permissions 
for files executed from the aliases file. For example:
# chmod 0755 <path/file>