Intel® Branded NUC’s Vulnerable to SMM Exploit

Intel ID:  INTEL-SA-00057
Product family:  Intel® NUC Kits
Impact of vulnerability Elevation of Privilege
Severity rating Important
Original release:  Oct 03, 2016
Last revised:  Nov 29, 2016
Summary: 

Intel is releasing updated BIOS firmware for a privilege escalation issue. This issue affects Intel® NUC Kits listed in the affected products section below. The issue identified is a method that enables malicious code to gain access to System Management Mode (SMM).

Description: 

A malicious attacker with local administrative access can leverage the vulnerable BIOS to gain access to System Management Mode (SMM) and take full control of the platform. Intel products that are listed below should apply the update.

Affected products: 

Model Number

BIOS SKU

Version Fixed

NUC6i3SYB (Swift Canyon - i3)

NUC6i5SYB (Swift Canyon - i5)

SYSKLi35.86A

SY0051

NUC5PGYH (Grass Canyon – Pentium)

NUC5CPYH (Pinnacle Canyon – Celeron)

NUC5PPYH (Pinnacle Canyon – Pentium)

PYBWCEL.86A

PY0056

NUC6i7KYB (Skull Canyon - i7)

KYSKLi70.86A

KY0041

NUC5i7RYKH (Rock Canyon - i7)

NUC5i5RYB (Rock Canyon - i5)

NUC5i3RYB (Rock Canyon - i3)

RYBDWi35.86A

RY0359

STK1AW32SC (Sterling City)

STK1A32SC (Sterling City)

SCCHTAX5.86A

SC0029

STK2mv64CC (Cedar City – m3)

CCSKLm30.86a

CCV00042

STK2m3w64CC (Cedar City - m5)

CCSKLm5v.86A

CC0042

NUC5i3MYBE (Maple Canyon - i5)

MYBDWi5v.86A

MYi30039

NUC5i3MYBE (Maple Canyon - i3)

MYBDWi30.86A

MYi50032

STK2m3W64CC (Cedar City - m3)

CCSKLm30.86A

CC0046

STK1AW32SC(Sterlig Citry)

SCCHTAX5.86a

SC0029

DN2820FYB(Forest Canyon) FYBYT10H.86a FY0055
STCK1A32WFC (Fall City) FCBYT10H.86A FC0032

D54250WYB (Wilson Wilson – i5)

D34010WYB (Wilson Wilson – i3)

WYLPT10H.86A WY8042
D53427HYE (Horse Canyon/Rend Lake) RKPPT10H.86A RK9043

 

D53427HYE (Horse Canyon/Rend Lake)

Recommendations: 

Intel highly recommends updating the BIOS of all Intel® NUC’s to the recommended BIOS or later listed in the table of affected products.

Acknowledgements: 

Intel would like to thank Security Researcher Dmytro Oleksiuk for discovering and reporting this issue.

Revision history: 

Revision
Date
Description
1.0
03-October-2016
Initial Release
1.1
15-November-2016
Update Models
1.2
29-November-2016
Update Models
1.3
06-January-2017
Update Models


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