Headline

CVE-2020-8741: INTEL-SA-00393

Improper permissions in the installer for the Intel® Thunderbolt™ non-DCH driver, all versions, for Windows may allow an authenticated user to potentially enable escalation of privilege via local access.

2 years ago

CVE

Open in Source

#vulnerability #web #windows

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Intel® Thunderbolt™ non-DCH Driver for Windows Advisory

**Summary: **

A potential security vulnerability in the Intel® Thunderbolt™ non-DCH (Declarative Componentized Hardware) driver for Windows may allow escalation of privilege. Intel is releasing software updates and prescriptive guidance to mitigate this potential vulnerability.

Vulnerability Details:

CVEID: CVE-2020-8741

Description: Improper permissions in the installer for the Intel® Thunderbolt™ non-DCH driver, all versions, for Windows may allow an authenticated user to potentially enable escalation of privilege via local access.

CVSS Base Score: 6.7 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected Products:

Intel® Thunderbolt™ non-DCH Driver, all versions, for Windows.

Recommendations:

Intel has issued a Product Discontinuation notice for the Intel® Thunderbolt™ non-DCH driver for Windows. To retain support for existing devices, Intel recommends that users of Intel® Thunderbolt™ non-DCH driver for Windows update to the latest version provided by the system manufacturer.

For affected Intel® NUC Products, Intel recommends updating to the versions below:

· Thunderbolt 3 Firmware Update Tool for NUC6i7KYK (version 38)

· Thunderbolt 3 Firmware Update Tool for NUC6i7KYK (version 27)

· Thunderbolt 3 Firmware Update Tool for NUC6i7KYK (version 46)

· Thunderbolt 3 Firmware Update Tool for NUC7i7BN and NUC7i5BN

· Thunderbolt 3 Firmware Update Tool for NUC8i7HNK, NUC8i7HVK

· Thunderbolt 3 Firmware Update Tool for Intel® NUC 9 Extreme Laptop Kits

· Thunderbolt 3 Firmware Update Tool for NUC10ixFN

· Thunderbolt 3 Firmware Update Tool for the Intel® NUC8ixBE and NUC7ixBN

· Thunderbolt 3 Firmware Update Tool for NUC8vPN

· Thunderbolt 3 Firmware Update Tool for NUC9QN

· Thunderbolt 3 Driver for Windows® Server 2016* for NUC6i7KYK, NUC8i7HNK, NUC8i7HVK

· Thunderbolt 3 Legacy Driver for Windows® 10 for Intel® NUC

· Thunderbolt 3 DCH Driver for Intel® NUC 9 Extreme Laptop Kits

· Thunderbolt 3 DCH Driver for NUC11TN

· Thunderbolt 3 and 4 DCH Driver for Windows® 10 for Intel® NUC

Acknowledgements:

Intel would like to thank Haoran Qin & Zhiniang Peng (@edwardzpeng) for reporting this issue.

Intel, and nearly the entire technology industry, follows a disclosure practice called Coordinated Disclosure, under which a cybersecurity vulnerability is generally publicly disclosed only after mitigations are available.

Revision History

Revision

Date

Description

1.0

11/09/2021

Initial Release

Legal Notices and Disclaimers

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All products, dates, and figures specified are preliminary based on current expectations, and are subject to change without notice.

Intel, processors, chipsets, and desktop boards may contain design defects or errors known as errata, which may cause the product to deviate from published specifications. Current characterized errata are available on request.

Intel technologies’ features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration. No computer system can be absolutely secure. Check with your system manufacturer or retailer or learn more at https://intel.com.

Some results have been estimated or simulated using internal Intel analysis or architecture simulation or modeling, and provided to you for informational purposes. Any differences in your system hardware, software or configuration may affect your actual performance.

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*Other names and brands may be claimed as the property of others.
Copyright © Intel Corporation 2020

Report a Vulnerability

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Please provide as much information as possible, including:

The products and versions affected
Detailed description of the vulnerability
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