VMware vSphere 6.7 Photon OS Security Technical Implementation Guide

The VMware vSphere 6.7 Photon OS Security Technical Implementation Guide (V1 R6) has 124 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V1 · R6

CurrentPublished Wed Jul 26 2023 What changed in V1R6

The Photon operating system must not respond to IPv4 Internet Control Message Protocol (ICMP) echoes sent to a broadcast address.

VMware vSphere 6.7 Photon OS Security Technical Implementation Guide

Assessment Title

Rule Text

The Photon operating system must not respond to IPv4 Internet Control Message Protocol (ICMP) echoes sent to a broadcast address.

Description

Discussion Text

Responding to broadcast (ICMP) echoes facilitates network mapping and provides a vector for amplification attacks.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-239176

Rule

SV-239176r816658_rule

Severity

medium

Rule Version

PHTN-67-000105

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

At the command line, execute the following command:

# /sbin/sysctl -a --pattern ignore_broadcasts

Expected result:

net.ipv4.icmp_echo_ignore_broadcasts = 1

If the output does not match the expected result, this is a finding.

Implementation Procedure

Fix Text

Open /etc/sysctl.conf with a text editor.

Add or update the following line:

net.ipv4.icmp_echo_ignore_broadcasts=1

Run the following command to load the new setting:

# /sbin/sysctl --load

STIG check 104 of 124 in the VMware vSphere 6.7 Photon OS STIG checklist

← Previous · V-239175The Photon operating system must not forward IPv4 or IPv6 source-routed packets.Next · V-239177 →The Photon operating system must prevent IPv4 Internet Control Message Protocol (ICMP) redirect messages from being accepted.