SV-281272r1268226: RHEL 10 must not have any ".shosts" files on the system. | Red Hat Enterprise Linux 10 STIG SCAP Benchmark

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Assessment Title

Rule Text

RHEL 10 must not have any ".shosts" files on the system.

Description

Discussion Text

The ".shosts" files are used to configure host-based authentication for individual users or the system via Secure Shell (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-000213

References

DPMS Target Red Hat Enterprise Linux 10 DISA DPMS Target Red Hat Enterprise Linux 10 5733

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.rhel10os:def:281272
# RHEL 10 must not have any ".shosts" files on the system.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# There are no .shosts files on the system.
# file_object (file_test)
test_1() {
  ! ( test -e '/.shosts' &>/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:mil.disa.stig.rhel10os:def:281272
if [ ! -z "$(find / -name ".shosts" 2>/dev/null)" ]; then echo "FAIL"; exit 1; fi; echo "PASS"; exit 0

Remediation

Configure RHEL 10 to not have any ".shosts" files on the system.

Remove any found ".shosts" files from the system with the following command:

$ sudo rm /[path]/[to]/[file]/.shosts