Microsoft Windows HyperV RemoteFX vGPU Multiple Vulnerabilities

critical Nessus Plugin ID 162570

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Synopsis

The remote host is affected by multiple vulnerabilities

Description

The Microsoft HyperV RemoteFX vGPU enabled on the remote host is affected by multiple vulnerabilities, including the following:

- An exploitable code execution vulnerability exists in the Shader functionality. An attacker can provide a specially crafted shader file to trigger this vulnerability, resulting in code execution. This vulnerability can be triggered from a HYPER-V guest using the RemoteFX feature, leading to executing the vulnerable code on the HYPER-V host (inside of the rdvgm.exe process). Theoretically this vulnerability could be also triggered from web browser (using webGL and webassembly). (CVE-2020-6103, CVE-2020-6102)

- An exploitable code execution vulnerability exists in the Shader functionality. An attacker can provide a specially crafted shader file to trigger this vulnerability, resulting in code execution. This vulnerability can be triggered from a HYPER-V guest using the RemoteFX feature, leading to executing the vulnerable code on the HYPER-V host (inside of the rdvgm.exe process). Theoretically this vulnerability could be also triggered from web browser (using webGL and webassembly). (CVE-2020-6101)

- Remote code execution vulnerabilities exist when Hyper-V RemoteFX vGPU on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Hyper-V RemoteFX vGPU Remote Code Execution Vulnerability'. (CVE-2020-1032, CVE-2020-1036, CVE-2020-1040, CVE-2020-1041, CVE-2020-1043, CVE-2020-1043)

Note that Nessus has not tested for this issue but has instead relied only on the application's presence on the machine.

Solution

See vendor advisory.

Plugin Details

Severity: Critical

ID: 162570

File Name: microsoft_windows_hyperv_remotefx_vgpu_multiple_vulnerabilities.nasl

Version: 1.6

Type: local

Agent: windows

Family: Windows

Published: 6/28/2022

Updated: 10/6/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.4

Vector: CVSS2#AV:A/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2020-1043

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 9.2

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

CVSS Score Source: CVE-2020-6103

Vulnerability Information

CPE: x-cpe:/a:microsoft:hyperv_remotefx_vgpu

Required KB Items: installed_sw/Microsoft HyperV RemoteFX vGPU

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/14/2020

Vulnerability Publication Date: 7/14/2020

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Reference Information

CVE: CVE-2020-1032, CVE-2020-1036, CVE-2020-1040, CVE-2020-1041, CVE-2020-1042, CVE-2020-1043, CVE-2020-6100, CVE-2020-6101, CVE-2020-6102, CVE-2020-6103

IAVA: 2020-A-0306-S

Detections

Analytics