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

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: 1.6

Type: remote

Family: Misc.

Published: 2018/08/15

Updated: 2019/11/04

Dependencies: 57396

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2018-3646

CVSS v2.0

Base Score: 4.7

Temporal Score: 3.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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/version, Host/VMware/release

Exploit Ease: No known exploits are available

Patch Publication Date: 2018/08/14

Vulnerability Publication Date: 2018/08/14

Reference Information

CVE: CVE-2018-3646

BID: 105080

VMSA: 2018-0020