Host must block network traffic by default

SedangLevel 1Otomatisvmware

Deskripsi

By default, the host is configured to block all incoming and outgoing network traffic, except for the traffic pertaining to services enabled in the host security profile. This configuration is pivotal in reducing the attack surface and averting unauthorized access to the host. The audit runs esxcli network firewall get and requires "Enabled: true" and "Default Action: DROP"; review enabled rulesets as well. Runs in the ESXi Shell (busybox sh) as root.

Cara pemeriksaan

Metode audit: Perintah shell

shell

out=$(esxcli network firewall get 2>/dev/null) || exit 1
a=$(printf '%s\n' "$out" | sed -n 's/^ *Default Action: *//p' | head -n 1)
e=$(printf '%s\n' "$out" | sed -n 's/^ *Enabled: *//p' | head -n 1)
[ "$a" = DROP ] && [ "$e" = true ] && echo compliant || echo "firewall enabled=$e default action=$a"

Output yang diharapkan: compliant

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

1. Enable the ESXi firewall if disabled and disable unnecessary rulesets. 2. Use: esxcli network firewall set --enabled true 3. Configure only the required rulesets for documented services.

Properti

Sistem operasi: Apa saja
Tag: vmwareesxinetwork
Referensi: CIS VMware ESXi 9.0 Benchmark v1.0.0 - 5.2 Host must block network traffic by default

Periksa host ini

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

shell

tmaegis scan --target vmware