SolarWinds Orion Platform 2019.4 HF5 / 2020.2.x < 2020.2.1 SUNBURST Malware Backdoor

high Nessus Plugin ID 144198
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An application running on the remote host is affected by a malware backdoor.


The version of SolarWinds Orion Platform running on the remote host is 2019.4 HF5 or 2020.2.1 prior to 2020.2.1 HF2. It is, therefore, affected by a malware backdoor known as SUNBURST. The file SolarWinds.Orion.Core.BusinessLayer.dll that is included in these versions is known to contain a backdoor that communicates to third party servers and could allow a remote attacker complete control over the host via obfuscated, benign looking network traffic.

The United States Department of Homeland Security has issued Emergency Directive 21-01 that specifies SolarWinds Orion products up to and including 2020.2.1 HF 1 are currently being exploited by malicious actors.

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


Upgrade to SolarWinds Orion Platform 2019.4 HF6, 2020.2.1 HF2, or later.

See Also

Plugin Details

Severity: High

ID: 144198

File Name: solarwinds_orion_sunburst.nasl

Version: 1.4

Type: combined

Agent: windows

Family: CGI abuses

Published: 12/14/2020

Updated: 1/13/2021

Dependencies: solarwinds_orion_npm_detect.nasl, solarwinds_orion_installed.nbin

Risk Information

CVSS Score Source: manual

CVSS Score Rationale: Score based on analysis of the vendor advisory.


Risk Factor: Medium

Score: 6


Risk Factor: High

Base Score: 7.6

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


Risk Factor: High

Base Score: 8.1

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

Vulnerability Information

CPE: cpe:2.3:a:solarwinds:orion_platform:*:*:*:*:*:*:*:*

Required KB Items: installed_sw/SolarWinds Orion Core

Patch Publication Date: 10/29/2020

Vulnerability Publication Date: 12/13/2020