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-256514 | PHTN-30-000038 | SV-256514r887216_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 | 2023-12-01 |
Details
| Check Text ( C-60189r887214_chk ) |
|---|
| At the command line, run the following command: # sshd -T|&grep -i ClientAliveCountMax Expected result: ClientAliveCountMax 0 If the output does not match the expected result, this is a finding. |
| Fix Text (F-60132r887215_fix) |
|---|
| Navigate to and open: /etc/ssh/sshd_config Ensure the "ClientAliveCountMax" line is uncommented and set to the following: ClientAliveCountMax 0 At the command line, run the following command: # systemctl restart sshd.service |