Check: ESXI-67-000057
VMware vSphere 6.7 ESXi STIG:
ESXI-67-000057
(in versions v1 r3 through v1 r1)
Title
The ESXi host must configure the firewall to block network traffic by default. (Cat II impact)
Discussion
In addition to service-specific firewall rules, ESXi has a default firewall rule policy to allow or deny incoming and outgoing traffic. Reduce the risk of attack by making sure this is set to deny incoming and outgoing traffic.
Check Content
From a PowerCLI command prompt while connected to the ESXi host, run the following command: Get-VMHostFirewallDefaultPolicy If the Incoming or Outgoing policies are "True", this is a finding.
Fix Text
From a PowerCLI command prompt while connected to the ESXi host, run the following command: Get-VMHostFirewallDefaultPolicy | Set-VMHostFirewallDefaultPolicy -AllowIncoming $false -AllowOutgoing $false
Additional Identifiers
Rule ID: SV-239311r674862_rule
Vulnerability ID: V-239311
Group Title: SRG-OS-000480-VMM-002000
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
The organization implements the security configuration settings. |
Controls
Number | Title |
---|---|
CM-6 |
Configuration Settings |