SV-794r4: All system command files must have mode 755 or less permissive. | AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Loading benchmark…

Assessment Title

Rule Text

All system command files must have mode 755 or less permissive.

Description

Discussion Text

Restricting permissions will protect system command files from unauthorized modification. System command files include files present in directories used by the operating system for storing default system executables and files present in directories included in the system's default executable search paths.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001499

Additional Details

Severity Override Guidance

Elevate to Severity Code I if any file listed is world-writable.

Responsibility

System Administrator

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:69
# All system command files must have mode 755 or less permissive.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.
#
# MANUAL REVIEW REQUIRED -- the module(s) below could not be reconstructed
# into working code from curated SCC reference data, and are excluded from
# the automated result:
#   - file_object (file_test) -- All files in system command directories: no extractor for field "owrite"

echo "MANUAL REVIEW REQUIRED -- see notes above; no part of this check could be automated"

Remediation

Change the mode for system command files to 755 or less permissive.

Procedure:
# chmod 755 <filename>