STIGQter: STIG Summary: Samsung Android OS 10 with Knox 3.x Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 20 Mar 2020:

Samsung Android must be configured to enforce a USB host mode exception list. Note: This configuration allows DeX mode (with input devices), which is DoD-approved for use.

DISA Rule

SV-109085r1_rule

Vulnerability Number

V-99981

Group Title

PP-MDF-991000

Rule Version

KNOX-10-011200

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

Configure Samsung Android with a USB host mode exception list, or alternatively, disable the use of USB host mode.

Do one of the following:
- Method #1: Use USB exception list, which allows DeX usage (preferred).
- Method #2: Disable USB host mode.

****

Method #1: Use USB exception list, which allows DeX usage (preferred).

On the management tool, in the device KPE restrictions section, add the "HID" USB class to the "USB host mode exception list".

****

Method #2: Disable USB host mode.

On the management tool, in the device KPE restrictions section, set "USB host mode" to "Disable".

Check Contents

Review Samsung Android device configuration settings to determine if USB host mode exception list is configured, or alternatively, if USB host mode is disabled.

Confirm if Method #1 or #2 is used at the Samsung device site and follow the appropriate procedure.

This validation procedure is performed on both the management tool Administration Console and the Samsung Android device.

****

Method #1: Use USB exception list, which allows DeX usage (preferred).

On the management tool, in the device KPE restrictions section, verify that "HID" is the only USB class included in the "USB host mode exception list".

On the Samsung Android device, do the following:
1. Connect a micro USB-to-USB "On the Go" (OTG) adapter to the device.
2. Connect a USB thumb drive to the adapter.
3. Verify that the device cannot access the USB thumb drive.

If on the management tool the "USB host mode exception list" includes a USB class other than "HID", or on the Samsung Android device the USB thumb drive can be mounted, this is a finding.

****

Method #2: Disable USB host mode.

On the management tool, in the device KPE restrictions section, set "USB host mode" to "Disable".

On the Samsung Android device, do the following:
1. Connect a micro USB-to-USB "On the Go" (OTG) adapter to the device.
2. Connect a USB thumb drive to the adapter.
3. Verify that the device cannot access the USB thumb drive.

If on the management tool the "USB host mode" is not set to "Disable", or on the Samsung Android device the USB thumb drive can be mounted, this is a finding.

Vulnerability Number

V-99981

Documentable

False

Rule Version

KNOX-10-011200

Severity Override Guidance

Review Samsung Android device configuration settings to determine if USB host mode exception list is configured, or alternatively, if USB host mode is disabled.

Confirm if Method #1 or #2 is used at the Samsung device site and follow the appropriate procedure.

This validation procedure is performed on both the management tool Administration Console and the Samsung Android device.

****

Method #1: Use USB exception list, which allows DeX usage (preferred).

On the management tool, in the device KPE restrictions section, verify that "HID" is the only USB class included in the "USB host mode exception list".

On the Samsung Android device, do the following:
1. Connect a micro USB-to-USB "On the Go" (OTG) adapter to the device.
2. Connect a USB thumb drive to the adapter.
3. Verify that the device cannot access the USB thumb drive.

If on the management tool the "USB host mode exception list" includes a USB class other than "HID", or on the Samsung Android device the USB thumb drive can be mounted, this is a finding.

****

Method #2: Disable USB host mode.

On the management tool, in the device KPE restrictions section, set "USB host mode" to "Disable".

On the Samsung Android device, do the following:
1. Connect a micro USB-to-USB "On the Go" (OTG) adapter to the device.
2. Connect a USB thumb drive to the adapter.
3. Verify that the device cannot access the USB thumb drive.

If on the management tool the "USB host mode" is not set to "Disable", or on the Samsung Android device the USB thumb drive can be mounted, this is a finding.

Check Content Reference

M

Target Key

3613

Comments