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The Photon operating system must configure sshd to restrict LoginGraceTime.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-256588 | PHTN-30-000120 | SV-256588r887438_rule | Medium |
| Description |
|---|
| By default, sshd unauthenticated connections are left open for two minutes before being closed. This setting is too permissive as no legitimate login would need such an amount of time to complete a login. Quickly terminating idle or incomplete login attempts will free resources and reduce the exposure any partial logon attempts may create. |
| STIG | Date |
|---|---|
| VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide | 2023-02-21 |
Details
| Check Text ( C-60263r887436_chk ) |
|---|
| At the command line, run the following command: # sshd -T|&grep -i LoginGraceTime Expected result: logingracetime 30 If the output does not match the expected result, this is a finding. |
| Fix Text (F-60206r887437_fix) |
|---|
| Navigate to and open: /etc/ssh/sshd_config Ensure the "LoginGraceTime" line is uncommented and set to the following: LoginGraceTime 30 At the command line, run the following command: # systemctl restart sshd.service |