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V-256550

CAT II (Medium)

The Photon operating system must configure sshd to perform strict mode checking of home directory configuration files.

Rule ID

SV-256550r991589_rule

STIG

VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide

Version

V1R4

CCIs

CCI-000366

Discussion

If other users have access to modify user-specific Secure Shell (SSH) configuration files, they may be able to log on to the system as another user.

Check Content

At the command line, run the following command:

# sshd -T|&grep -i StrictModes

Expected result:

StrictModes yes

If the output does not match the expected result, this is a finding.

Fix Text

Navigate to and open:

/etc/ssh/sshd_config

Ensure the "StrictModes" line is uncommented and set to the following:

StrictModes yes

At the command line, run the following command:

# systemctl restart sshd.service