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 SSH sessions.


Overview

Finding ID Version Rule ID IA Controls Severity
V-239110 PHTN-67-000038 SV-239110r675138_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 the console or console port that has been left unattended.
STIG Date
VMware vSphere 6.7 Photon OS Security Technical Implementation Guide 2022-09-27

Details

Check Text ( C-42321r675136_chk )
At the command line, execute 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-42280r675137_fix)
Open /etc/ssh/sshd_config with a text editor.

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

ClientAliveInterval 900

At the command line, execute the following command:

# service sshd reload