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The Photon operating system must configure sshd to disallow authentication with an empty password.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-239160 | PHTN-67-000089 | SV-239160r675288_rule | Medium |
| Description |
|---|
| Blank passwords are one of the first things an attacker checks for when probing a system. Even is the user somehow has a blank password on the OS, sshd must not allow that user to log in. |
| STIG | Date |
|---|---|
| VMware vSphere 6.7 Photon OS Security Technical Implementation Guide | 2022-01-03 |
Details
| Check Text ( C-42371r675286_chk ) |
|---|
| At the command line, execute the following command: # sshd -T|&grep -i PermitEmptyPasswords Expected result: PermitEmptyPasswords no If the output does not match the expected result, this is a finding. |
| Fix Text (F-42330r675287_fix) |
|---|
| Open /etc/ssh/sshd_config with a text editor. Ensure that the "PermitEmptyPasswords" line is uncommented and set to the following: PermitEmptyPasswords no At the command line, execute the following command: # service sshd reload |