VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide

The VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide (V1 R5) has 113 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 · R5

CurrentPublished Wed Sep 30 2026 What changed in V1R5

The Photon operating system must configure sshd to restrict AllowTcpForwarding.

VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide

Assessment Title

Rule Text

The Photon operating system must configure sshd to restrict AllowTcpForwarding.

Description

Discussion Text

While enabling Transmission Control Protocol (TCP) tunnels is a valuable function of sshd, this feature is not appropriate for use on single-purpose appliances.

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

Objective

V-256587

Rule

SV-256587r1268251_rule

Severity

medium

Rule Version

PHTN-30-000119

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

At the command line, run the following command:

# sshd -T|&grep -i AllowTcpForwarding

Expected result:

allowtcpforwarding no

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

Implementation Procedure

Fix Text

Navigate to and open:

/etc/ssh/sshd_config

Ensure the "AllowTcpForwarding" line is uncommented and set to the following:

AllowTcpForwarding no

At the command line, run the following command:

# systemctl restart sshd.service

STIG check 110 of 113 in the VMware vSphere 7.0 vCenter Appliance Photon OS STIG checklist

← Previous · V-256586The Photon operating system must ensure the old passwords are being stored.Next · V-256588 →The Photon operating system must configure sshd to restrict LoginGraceTime.