STIGQter: STIG Summary: VMware vSphere 6.5 ESXi Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 22 Jan 2021:

The ESXi host SSH daemon must be configured to not allow X11 forwarding.

DISA Rule

SV-207624r388482_rule

Vulnerability Number

V-207624

Group Title

SRG-OS-000480-VMM-002000

Rule Version

ESXI-65-000023

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

From an SSH session connected to the ESXi host, or from the ESXi shell, add or correct the following line in "/etc/ssh/sshd_config":

X11Forwarding no

Check Contents

From an SSH session connected to the ESXi host, or from the ESXi shell, run the following command:

# grep -i "^X11Forwarding" /etc/ssh/sshd_config

If there is no output or the output is not exactly "X11Forwarding no", this is a finding.

Vulnerability Number

V-207624

Documentable

False

Rule Version

ESXI-65-000023

Severity Override Guidance

From an SSH session connected to the ESXi host, or from the ESXi shell, run the following command:

# grep -i "^X11Forwarding" /etc/ssh/sshd_config

If there is no output or the output is not exactly "X11Forwarding no", this is a finding.

Check Content Reference

M

Target Key

2925

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