The Photon operating system must configure Secure Shell (SSH) to restrict LoginGraceTime.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-258884 | SRG-OS-000480-GPOS-00227 | PHTN-40-000221 | SV-258884r991589_rule | 2024-07-11 | 2 |
| Description |
|---|
| By default, SSH 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 up resources and reduce the exposure any partial logon attempts may create. |
| ℹ️ Check |
|---|
| At the command line, run the following command to verify the running configuration of sshd: # sshd -T|&grep -i LoginGraceTime Example result: logingracetime 30 If "LoginGraceTime" is not set to "30", this is a finding. |
| ✔️ 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 |