IP Tables

Overview

Evidence: Iptables Description: Collect Iptables Category: Security Platform: Linux Short Name: iptables Is Parsed: Yes Sent to Investigation Hub: Yes Collect File(s): No

Background

Linux iptables firewall rules provide information about network security policies, access controls, and traffic filtering. This data is essential for understanding network security configuration and detecting unauthorized rule changes.

Data Collected

This collector gathers structured data about ip tables.

Ip Tables Data

Field	Description	Example
ID	Primary key (auto-increment)	1
IPVersion	IP version (IPv4/IPv6)	IPv4
Bytes	Number of bytes processed	1024000
Chain	iptables chain name	INPUT
DestIP	Destination IP address	0.0.0.0/0
DestMask	Destination IP mask	0.0.0.0
DestPort	Destination port range	0:65535
FilterName	Filter table name	filter
Iniface	Input interface	eth0
InifaceMask	Input interface mask	0.0.0.0
Match	Match criteria	tcp
Outiface	Output interface	eth0
OutifaceMask	Output interface mask	0.0.0.0
Packets	Number of packets processed	1000
Policy	Default policy	ACCEPT
Protocol	Network protocol	tcp
SourceIP	Source IP address	0.0.0.0/0
SourceMask	Source IP mask	0.0.0.0
SourcePort	Source port range	0:65535
Target	Target action	ACCEPT

Collection Method

This collector parses the necessary data from the iptables table.

This collector collects files from the following locations:

• /etc/iptables/

• /etc/sysconfig/iptables

Usage

This evidence is crucial for forensic investigations as it provides firewall configuration information. It helps investigators understand network security policies, detect unauthorized rule changes, and investigate network-based attacks. The data can reveal firewall rules, access controls, and potential security vulnerabilities. Analysts can use this information to identify network security compromises, trace rule changes, and assess firewall security posture.

Notes

This data may contain sensitive information that should be handled according to data protection requirements. Ensure proper chain of custody is maintained during collection and analysis.