Skip to content

Firewall Ruleset

Evidence: Firewall Ruleset
Description: ESXi Firewall Ruleset
Category: Network
Platform: esxi
Short Name: fwruleset
Is Parsed: Yes
Sent to Investigation Hub: Yes
Collect File(s): No

ESXi’s built-in firewall protects management interfaces by controlling inbound and outbound network traffic. Firewall rules define which services are accessible and from where, making rule configuration critical for preventing unauthorized remote access and detecting rule tampering.

This collector gathers structured data about firewall ruleset.

FieldDescriptionExample
NameNameExample value
EnabledEnabledExample value

This collector parses firewall ruleset configuration, extracting rule names, enabled/disabled status, allowed IP addresses or networks, port numbers, protocol types, and direction specifications for each defined firewall rule.

Firewall rule analysis reveals security policy violations, detects unauthorized rule modifications that enable remote access, identifies overly permissive rules, and exposes attempts to disable security controls. Comparing rules against security baselines helps identify compromise indicators and policy violations.