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The Photon operating system must configure Secure Shell (SSH) to ignore user-specific trusted hosts lists.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-258880 | PHTN-40-000217 | SV-258880r933701_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 8.0 vCenter Appliance Photon OS 4.0 Security Technical Implementation Guide | 2023-10-29 |
Details
| Check Text ( C-62620r933699_chk ) |
|---|
| At the command line, run the following command to verify the running configuration of sshd: # sshd -T|&grep -i IgnoreRhosts Example result: ignorerhosts yes If "IgnoreRhosts" is not set to "yes", this is a finding. |
| Fix Text (F-62529r933700_fix) |
|---|
| Navigate to and open: /etc/ssh/sshd_config Ensure the "IgnoreRhosts" line is uncommented and set to the following: IgnoreRhosts yes At the command line, run the following command: # systemctl restart sshd.service |