ESXi 6.5 / 6.7 / 7.0 RCE (VMSA-2021-0002)

high Nessus Plugin ID 146827

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Synopsis

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

Description

The remote VMware ESXi host is version 6.5, 6.7 or 7.0 and is affected by a remote code execution vulnerability. OpenSLP as used in ESXi (7.0 before ESXi70U1c-17325551, 6.7 before ESXi670-202102401-SG, 6.5 before ESXi650-202102101-SG) has a heap-overflow vulnerability. A malicious actor residing within the same network segment as ESXi who has access to port 427 may be able to trigger the heap-overflow issue in OpenSLP service resulting in remote code execution.

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.

Plugin Details

Severity: High

ID: 146827

File Name: vmware_esxi_vmsa-2021-0002.nasl

Version: 1.10

Type: remote

Family: Misc.

Published: 2/25/2021

Updated: 10/23/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 5

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

CVSS Score Source: CVE-2021-21974

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

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

Vulnerability Information

CPE: cpe:/o:vmware:esxi

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/23/2021

Vulnerability Publication Date: 2/23/2021

Reference Information

CVE: CVE-2021-21974

IAVA: 2021-A-0109

Detections

Analytics