CVE-2019-18279 Information

Description

In Phoenix SCT WinFlash 1.1.12.0 through 1.5.74.0 the included drivers could be used by a malicious Windows application to gain elevated privileges. Adverse impacts are limited to the Windows environment and there is no known direct impact to the UEFI firmware. This was fixed in late June 2019.

CVSS Vector

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

Reference

https://eclypsium.com/2019/08/10/screwed-drivers-signed-sealed-delivered/ https://eclypsium.com/wp-content/uploads/2019/08/EXTERNAL-Get-off-the-kernel-if-you-cant-drive-DEFCON27.pdf https://www.phoenix.com/content/uploads/Security-Newsletter-September-2019.pdf

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8