SV-38263r1: All FTP users must have a default umask of 077. | HP-UX 11.23 Security Technical Implementation Guide

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Assessment Title

Rule Text

All FTP users must have a default umask of 077.

Description

Discussion Text

The umask controls the default access mode assigned to newly created files. An umask of 077 limits new files to mode 700 or less permissive. Although umask is stored as a 4-digit number, the first digit representing special access modes is typically ignored or required to be zero.

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

ECCD-2, ECCD-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:283


FTP_HOME=$(getent passwd ftp | cut -d: -f6)
if [ ! -d "$FTP_HOME" ]; then
  echo "PASS"
  exit 0
fi

for file in "$FTP_HOME"/.{profile,login,bash_profile,bash_login}; do
  if [ -r "$file" ]; then
    if grep -q '^umask[ \t]*077' "$file"; then
      echo "PASS"
      exit 0
    fi
  fi
done

echo "FAIL"
exit 1

Remediation

Edit the initialization files for the ftp user and set the umask to 077.