The ESXi host SSH daemon must not permit user environment settings.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-239272 | ESXI-67-000016 | SV-239272r674745_rule | Medium |
| Description |
|---|
| SSH environment options potentially allow users to bypass access restriction in some configurations. Users must not be able to present environment options to the SSH daemon. |
| STIG | Date |
|---|---|
| VMware vSphere 6.7 ESXi Security Technical Implementation Guide | 2022-01-05 |
Details
| Check Text ( C-42505r674743_chk ) |
|---|
| From an SSH session connected to the ESXi host, or from the ESXi shell, run the following command: # grep -i "^PermitUserEnvironment" /etc/ssh/sshd_config If there is no output or the output is not exactly "PermitUserEnvironment no", this is a finding. |
| Fix Text (F-42464r674744_fix) |
|---|
| From an SSH session connected to the ESXi host, or from the ESXi shell, add or correct the following line in "/etc/ssh/sshd_config": PermitUserEnvironment no |