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V-265976

CAT II (Medium)

The ESXi host must deny shell access for the dcui account.

Rule ID

SV-265976r1003584_rule

STIG

VMware vSphere 8.0 ESXi Security Technical Implementation Guide

Version

V2R4

CCIs

CCI-000366

Discussion

The dcui user is used for process isolation for the DCUI itself. The account has shell access which can be deactivated to reduce attack surface.

Check Content

From an ESXi shell, run the following command:

# esxcli system account list

or

From a PowerCLI command prompt while connected to the ESXi host, run the following commands:

$esxcli = Get-EsxCli -v2
$esxcli.system.account.list.Invoke() | Where-Object {$_.UserID -eq 'dcui'}

If shell access is not disabled for the dcui account, this is a finding.

Fix Text

From an ESXi shell, run the following command:

# esxcli system account set -i dcui -s false

or

From a PowerCLI command prompt while connected to the ESXi host, run the following commands:

$esxcli = Get-EsxCli -v2
$arguments = $esxcli.system.account.set.CreateArgs()
$arguments.id = "dcui"
$arguments.shellaccess = "false"
$esxcli.system.account.set.invoke($arguments)