STIGQter: STIG Summary: VMware vSphere 7.0 ESXi Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 02 Apr 2025:

The ESXi host SSH daemon must be configured to only use FIPS 140-2 validated ciphers.

DISA Rule

SV-256449r959006_rule

Vulnerability Number

V-256449

Group Title

SRG-OS-000478-VMM-001980

Rule Version

ESXI-70-000274

Severity

CAT II

CCI(s)

• CCI-002450 - Implement organization-defined types of cryptography for each specified cryptography use.

Weight

10

Fix Recommendation

From an ESXi shell, add or correct the following line in "/etc/ssh/sshd_config":

Ciphers aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr

Check Contents

From an ESXi shell, run the following command:

# /usr/lib/vmware/openssh/bin/sshd -T|grep ciphers

Expected result:

ciphers aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr

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

Vulnerability Number

V-256449

Documentable

False

Rule Version

ESXI-70-000274

Severity Override Guidance

From an ESXi shell, run the following command:

# /usr/lib/vmware/openssh/bin/sshd -T|grep ciphers

Expected result:

ciphers aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr

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

Check Content Reference

M

Target Key

5518