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Intel® NUC and Intel® Compute Stick DCI Disable

Intel ID

INTEL-SA-00073

Product family

Intel® NUC and Intel® Compute Stick based on 6th Gen Intel® Core™ processors

Impact of vulnerability 

Information Disclosure

Severity rating

Moderate

Original release

Apr 03, 2017

Last revised

Apr 03, 2017

Summary: 

Intel® NUC and Intel® Compute Stick systems based on 6th Gen Intel® Core™ processors do not have DCI debug capability properly locked for BIOS only access. This would allow an attacker with physical possession of the system to potentially enable DCI from outside the BIOS. 

Description: 

Intel® Direct Connect Interface (DCI) provides closed chassis access to perform debug for processing OEM and OEM customer returns.  DCI is was designed to be enabled only via BIOS settings.  Current settings in the referenced product family BIOS may allow an attacker with physical access to the system.

If an attacker were able to gain physical access to a system and enable DCI, it is possible they may gain access to personal information.  Intel views this risk as a Moderate (4.7) due to physical access and high privileges being required by an attacker.

  • Moderate (4.7) CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L

Affected products:

 

Model Number

 

 

Code Name

 

 

All versions before

 

 

Fixed BIOS Name

 

 

STK2MV64CC

 

 

Cedar City

 

 

CC0047

 

 

CCSKLm5v.86a

 

 

STK2M3W64CC

 

 

Cedar City

 

 

CV0050

 

 

CCSKLm30.86a

 

 

NUC6i7KYK

 

 

Skull Canyon

 

 

KY0045

 

 

KYSKLi70.86a

 

 

NUC6i5SYH/K

NUC6i3SYH/K

 

 

Swift Canyon

 

 

SY0059

 

 

SYSKLi35.86a

 

Recommendations: 

Intel recommends updating to the latest BIOS identified in Affected Products from https://downloadcenter.intel.com or http://www.intel.com/content/www/us/en/support/boards-and-kits.html

Acknowledgements: 

Intel would like to thank Maxim Goryachy and Mark Ermolov from Positive Technologies.

Revision history:

Revision

Date

Description

1.0

03-April-2017

Initial Release

1.1

10-April-2017

Updated wording

1.2

12-April-2017

Updated Models

CVE Name:  CVE-2017-5684

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