SV-248645r991589: All OL 8 local initialization files must have mode "0740" or less permissive. | Oracle Linux 8 STIG SCAP Benchmark

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Assessment Title

Rule Text

All OL 8 local initialization files must have mode "0740" or less permissive.

Description

Discussion Text

Local initialization files are used to configure the user's shell environment upon logon. Malicious modification of these files could compromise accounts upon logon.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366

References

DPMS Target Oracle Linux 8 DISA DPMS Target Oracle Linux 8 5416

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.stig.ol8os:def:248645
export HOME=$(getent passwd "$1" | cut -d: -f6)
for file in "$HOME"/.[ !.]*; do
  if [ ! -f "$file" ]; then
    echo "PASS"
    exit 0
  fi
  perms=$(stat -c "%a" "$file")
  if [ "$perms" -gt 740 ]; then
    echo "FAIL"
    exit 1
  fi
done
echo "PASS"
exit 0

Remediation

Set the mode of the local initialization files to "0740" with the following command: 
 
Note: The example will be for the smithj user, who has a home directory of "/home/smithj". 
 
$ sudo chmod 0740 /home/smithj/.<INIT_FILE>