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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 | 2022-01-03 |
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 |