Detections
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ESXi 5.5 / 6.0 / 6.5 / 6.7 Speculative Execution Side Channel Vulnerability (Foreshadow) (VMSA-2018-0020) (remote check)

medium Nessus Plugin ID 111759

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Synopsis

The remote VMware ESXi host is missing a security patch and is affected by a speculative execution side channel vulnerability.

Description

The remote VMware ESXi host is version 5.5, 6.0, 6.5, or 6.7 and is missing a security patch. It is, therefore, vulnerable to a speculative execution side channel attack known as L1 Terminal Fault (L1TF). An attacker who successfully exploited L1TF may be able to read privileged data across trust boundaries.

Solution

Apply the appropriate patch as referenced in the vendor advisory.

See Also

https://www.vmware.com/security/advisories/VMSA-2018-0020.html

https://foreshadowattack.eu/

Plugin Details

Severity: Medium

ID: 111759

File Name: vmware_esxi_VMSA-2018-0020.nasl

Version: 1.7

Type: remote

Family: Misc.

Published: 8/15/2018

Updated: 9/2/2020

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.5

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

CVSS Score Source: CVE-2018-3646

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.9

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

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

Vulnerability Information

CPE: cpe:/o:vmware:esxi

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/14/2018

Vulnerability Publication Date: 8/14/2018

Reference Information

CVE: CVE-2018-3646

BID: 105080

VMSA: 2018-0020