Host SSH daemon, if enabled, must not permit tunnels

SedangLevel 1Otomatisvmware

Deskripsi

Preventing tunnel creation in the SSH daemon is a security measure aimed at thwarting unauthorized network tunneling through the host. This control, when enforced, helps mitigate the risks associated with potential data exfiltration or unauthorized network access that could occur via SSH tunnels. The audit reads /etc/ssh/sshd_config and requires PermitTunnel no (unset = OpenSSH default no). Runs in the ESXi Shell (busybox sh) as root.

Cara pemeriksaan

Metode audit: Perintah shell

shell

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

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

To remediate this recommendation, set PermitTunnel no, restart SSH if authorized, and verify SSH tunnel devices cannot be created.

Properti

Sistem operasi: Apa saja
Tag: vmwareesxiservices
Referensi: CIS VMware ESXi 9.0 Benchmark v1.0.0 - 6.5.11 Host SSH daemon, if enabled, must not permit tunnels

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target vmware