The ESXi host must configure the firewall to block network traffic by default.
An XCCDF Rule
Description
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 ensuring this is set to deny incoming and outgoing traffic.
- ID
- SV-258769r933368_rule
- Version
- ESXI-80-000214
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
From an ESXi shell, run the following command:
# esxcli network firewall set --default-action=false
or