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The ESXi host Secure Shell (SSH) daemon must not permit user environment settings.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-256388 | ESXI-70-000016 | SV-256388r885945_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 7.0 ESXi Security Technical Implementation Guide | 2023-02-21 |
Details
| Check Text ( C-60063r885943_chk ) |
|---|
| From an ESXi shell, run the following command: # /usr/lib/vmware/openssh/bin/sshd -T|grep permituserenvironment Expected result: permituserenvironment no If the output does not match the expected result, this is a finding. |
| Fix Text (F-60006r885944_fix) |
|---|
| From an ESXi shell, add or correct the following line in "/etc/ssh/sshd_config": PermitUserEnvironment no |