STIGQter: STIG Summary: VMware vSphere 6.7 ESXi Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 09 Mar 2021:

The ESXi host must enable bidirectional CHAP authentication for iSCSI traffic.

DISA Rule

SV-239308r674853_rule

Vulnerability Number

V-239308

Group Title

SRG-OS-000480-VMM-002000

Rule Version

ESXI-67-000054

Severity

CAT III

CCI(s)

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

Weight

10

Fix Recommendation

From the vSphere Client, select the ESXi host and go to Configure >> Storage >> Storage Adapters.

Select the iSCSI adapter >> Properties >> Authentication and click the "Edit" button.

Set Authentication method to “Use bidirectional CHAP” and enter a unique secret for each traffic flow direction.

or

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

Get-VMHost | Get-VMHostHba | Where {$_.Type -eq "iscsi"} | Set-VMHostHba -ChapType Required -ChapName "chapname" -ChapPassword "password" -MutualChapEnabled $true -MutualChapName "mutualchapname" -MutualChapPassword "mutualpassword"

Check Contents

From the vSphere Client, select the ESXi host and go to Configure >> Storage >> Storage Adapters.

Select the iSCSI adapter >> Properties >> Authentication method, view the CHAP configuration, and verify CHAP is required for target and host authentication.

or

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

Get-VMHost | Get-VMHostHba | Where {$_.Type -eq "iscsi"} | Select AuthenticationProperties -ExpandProperty AuthenticationProperties

If iSCSI is not used, this is not a finding.

If iSCSI is used and CHAP is not set to "required" for both the target and host, this is a finding.

If iSCSI is used and unique CHAP secrets are not used for each host, this is a finding.

Vulnerability Number

V-239308

Documentable

False

Rule Version

ESXI-67-000054

Severity Override Guidance

From the vSphere Client, select the ESXi host and go to Configure >> Storage >> Storage Adapters.

Select the iSCSI adapter >> Properties >> Authentication method, view the CHAP configuration, and verify CHAP is required for target and host authentication.

or

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

Get-VMHost | Get-VMHostHba | Where {$_.Type -eq "iscsi"} | Select AuthenticationProperties -ExpandProperty AuthenticationProperties

If iSCSI is not used, this is not a finding.

If iSCSI is used and CHAP is not set to "required" for both the target and host, this is a finding.

If iSCSI is used and unique CHAP secrets are not used for each host, this is a finding.

Check Content Reference

M

Target Key

5326

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