UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

The Photon operating system must configure sshd to disconnect idle Secure Shell (SSH) sessions.


Overview

Finding ID Version Rule ID IA Controls Severity
V-256513 PHTN-30-000037 SV-256513r887213_rule Medium
Description
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on a console or console port that has been left unattended.
STIG Date
VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide 2023-06-15

Details

Check Text ( C-60188r887211_chk )
At the command line, run the following command:

# sshd -T|&grep -i ClientAliveInterval

Expected result:

ClientAliveInterval 900

If the output does not match the expected result, this is a finding.
Fix Text (F-60131r887212_fix)
Navigate to and open:

/etc/ssh/sshd_config

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

ClientAliveInterval 900

At the command line, run the following command:

# systemctl restart sshd.service