The Photon operating system must configure sshd to ignore user-specific trusted hosts lists.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-239163 | PHTN-67-000092 | SV-239163r675297_rule | Medium |
| Description |
|---|
| SSH trust relationships enable trivial lateral spread after a host compromise and therefore must be explicitly disabled. Individual users can have a local list of trusted remote machines, which must also be ignored while disabling host-based authentication generally. |
| STIG | Date |
|---|---|
| VMware vSphere 6.7 Photon OS Security Technical Implementation Guide | 2022-01-03 |
Details
| Check Text ( C-42374r675295_chk ) |
|---|
| At the command line, execute the following command: # sshd -T|&grep -i IgnoreRhosts Expected result: IgnoreRhosts yes If the output does not match the expected result, this is a finding. |
| Fix Text (F-42333r675296_fix) |
|---|
| Open /etc/ssh/sshd_config with a text editor. Ensure that the "IgnoreRhosts" line is uncommented and set to the following: IgnoreRhosts yes At the command line, execute the following command: # service sshd reload |