SV-204607r991589: The Red Hat Enterprise Linux operating system must not contain shosts.equiv files. | Red Hat Enterprise Linux 7 STIG SCAP Benchmark

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Assessment Title

Rule Text

The Red Hat Enterprise Linux operating system must not contain shosts.equiv files.

Description

Discussion Text

The shosts.equiv files are used to configure host-based authentication for the system via SSH. Host-based authentication is not sufficient for preventing unauthorized access to the system, as it does not require interactive identification and authentication of a connection request, or for the use of two-factor authentication.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366SV-86903V-72279

References

DPMS Target Red Hat Enterprise Linux 7 DISA DPMS Target Red Hat Enterprise Linux 7 2899

Checks

DISA STIG (Manual Reference)

Verify there are no "shosts.equiv" files on the system.

Check the system for the existence of these files with the following command:

# find / -name shosts.equiv

If any "shosts.equiv" files are found on the system, this is a finding.

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.stig.rhel7:def:86903
# The Red Hat Enterprise Linux operating system must not contain shosts.equiv files.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# There must be no shosts.equiv files on the system.
# file_object (file_test)
test_1() {
  ! ( test -e '/shosts.equiv' &>/dev/null )
}

if test_1; then
  echo "PASS"
else
  echo "FAIL"
fi

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.rhel7:def:86903
if [ ! -e /shosts.equiv ]; then echo "PASS"; exit 0; fi; echo "FAIL"; exit 1

Remediation

Remove any found "shosts.equiv" files from the system.

# rm /[path]/[to]/[file]/shosts.equiv