The ESXi host Secure Shell (SSH) daemon must ignore ".rhosts" files.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-256385	ESXI-70-000012	SV-256385r919018_rule		Medium

Description
SSH trust relationships mean a compromise on one host can allow an attacker to move trivially to other hosts. SSH can emulate the behavior of the obsolete "rsh" command in allowing users to enable insecure access to their accounts via ".rhosts" files.

STIG	Date
VMware vSphere 7.0 ESXi Security Technical Implementation Guide	2023-06-21

Details

Check Text ( C-60060r885934_chk )
From an ESXi shell, run the following command: # /usr/lib/vmware/openssh/bin/sshd -T|grep ignorerhosts Expected result: ignorerhosts yes If the output does not match the expected result, this is a finding.

Fix Text (F-60003r918908_fix)
From an ESXi shell, add or correct the following line in "/etc/ssh/sshd_config": IgnoreRhosts yes