Detections
Analytics

ESXi 6.5 / 6.7 / 7.0 Multiple Vulnerabilities (VMSA-2020-0026)

high Nessus Plugin ID 143221

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Synopsis

The remote VMware ESXi host is missing a security patch and is affected by multiple vulnerabilities.

Description

According to its self-reported version number, the remote VMware ESXi host is version 6.5, 6.7 or 7.0 and is affected by multiple vulnerabilities.

- A use-after-free error exists in the XHCI USB controller. An unauthenticated, local attacker with local administrative privileges on a virtual machine can exploit this, to execute code as the virtual machine's VMX process running on the host. (CVE-2020-4004)

 - A privilege escalation vulnerability exists in ESXi due to how certain system calls are managed. An authenticated, local attacker with privileges within the VPM process can exploit this, when chained with CVE-2020-4004, to obtain escalated privileges. (CVE-2020-4005)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Apply the appropriate patch as referenced in the vendor advisory.

See Also

https://www.vmware.com/security/advisories/VMSA-2020-0026.html

Plugin Details

Severity: High

ID: 143221

File Name: vmware_esxi_vmsa_2020_0026.nasl

Version: 1.5

Type: remote

Family: Misc.

Published: 11/24/2020

Updated: 5/11/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-4005

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

CVSS Score Source: CVE-2020-4004

Vulnerability Information

CPE: cpe:/o:vmware:esxi

Required KB Items: Host/VMware/release, Host/VMware/version

Exploit Ease: No known exploits are available

Patch Publication Date: 11/19/2020

Vulnerability Publication Date: 11/19/2020

Reference Information

CVE: CVE-2020-4004, CVE-2020-4005

IAVA: 2020-A-0544

VMSA: 2020-0026