Finding ID | Version | Rule ID | IA Controls | Severity |
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V-239280 | ESXI-67-000025 | SV-239280r674769_rule | Medium |
Description |
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OpenSSH has the ability to create network tunnels (layer 2 and layer 3) over an SSH connection. This function can provide similar convenience to a Virtual Private Network (VPN) with the similar risk of providing a path to circumvent firewalls and network Access Control Lists (ACLs). |
STIG | Date |
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VMware vSphere 6.7 ESXi Security Technical Implementation Guide | 2022-01-05 |
Check Text ( C-42513r674767_chk ) |
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From an SSH session connected to the ESXi host, or from the ESXi shell, run the following command: # grep -i "^PermitTunnel" /etc/ssh/sshd_config If there is no output or the output is not exactly "PermitTunnel no", this is a finding. |
Fix Text (F-42472r674768_fix) |
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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": PermitTunnel no |