Oracle Linux 7 Security Technical Implementation Guide

The Oracle Linux 7 Security Technical Implementation Guide (V3 R5) has 243 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

Find STIG checks

243STIG checks

Search filters this STIG's checks locally. Separate terms must all match (use quotes for an exact phrase). A search you ran on the Search page carries over here.

Severity

Version

V3 · R5

CurrentPublished Mon Jan 05 2026

The Oracle Linux operating system must be configured so that the SSH daemon does not allow authentication using rhosts authentication.

Oracle Linux 7 Security Technical Implementation Guide

Assessment Title

Rule Text

The Oracle Linux operating system must be configured so that the SSH daemon does not allow authentication using rhosts authentication.

Description

Discussion Text

Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, even in the event of misconfiguration elsewhere.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-221852

Rule

SV-221852r991589_rule

Severity

medium

Rule Version

OL07-00-040350

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Verify the SSH daemon does not allow authentication using known hosts authentication.

To determine how the SSH daemon's "IgnoreRhosts" option is set, run the following command:

# grep -i IgnoreRhosts /etc/ssh/sshd_config

IgnoreRhosts yes

If the value is returned as "no", the returned line is commented out, or no output is returned, this is a finding.

Implementation Procedure

Fix Text

Configure the SSH daemon to not allow authentication using known hosts authentication.

Add the following line in "/etc/ssh/sshd_config", or uncomment the line and set the value to "yes":

IgnoreRhosts yes

STIG check 171 of 243 in the Oracle Linux 7 STIG checklist

← Previous · V-221851The Oracle Linux operating system must be configured so that all network connections associated with SSH traffic terminate after becoming unresponsive.Next · V-221853 →The Oracle Linux operating system must display the date and time of the last successful account logon upon an SSH logon.