Host SSH daemon, if enabled, must not allow use of gateway ports

MittelStufe 1Automatisiertvmware

Beschreibung

When enabled, the SSH daemon on the host should have the gateway ports feature disabled to prevent remote hosts from forwarding connections. This is a hardening measure to ensure that the SSH service is securely configured against potential forwarding misuses. The audit reads /etc/ssh/sshd_config and requires GatewayPorts no (unset = OpenSSH default no). Runs in the ESXi Shell (busybox sh) as root.

So wird geprüft

Prüfmethode: Shell-Befehl

shell

f=/etc/ssh/sshd_config; [ -r "$f" ] || exit 1
v=$(awk 'tolower($1)=="gatewayports" {print tolower($2); exit}' "$f")
case "$v" in '') echo compliant ;; no) echo compliant ;; *) echo "GatewayPorts $v" ;; esac

Erwartete Ausgabe: compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

To remediate this recommendation, set GatewayPorts no in the supported ESXi SSH configuration. Restart SSH only during an authorized maintenance/admin window and verify the effective setting.

Eigenschaften

Betriebssysteme: Beliebig
Tags: vmwareesxiservices
Referenz: CIS VMware ESXi 8.0 Benchmark v1.4.0 - 6.5.3 Host SSH daemon, if enabled, must not allow use of gateway ports

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