Microsoft DNS Server Remote Code Execution (SIGRed)

critical Nessus Plugin ID 138554
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The DNS server running on the remote host is affected by a remote code execution vulnerability.


According to its self-reported version number, the Microsoft DNS Server running on the remote host is affected by a remote code execution vulnerability. An unauthenticated, remote attacker who successfully exploited the vulnerability could run arbitrary code in the context of the Local System Account.

Note that in order to get the full Microsoft DNS server version, the EnableVersionQuery DNS setting would need to be set to 1.


Microsoft has released a set of patches for Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016, 2019, version 1903, 1909, and 2004.

See Also

Plugin Details

Severity: Critical

ID: 138554

File Name: ms_dns_cve-2020-1350.nasl

Version: 1.4

Type: remote

Family: DNS

Published: 7/16/2020

Updated: 10/19/2020

Dependencies: ms_dns_version.nasl

Risk Information

CVSS Score Source: CVE-2020-1350


Risk Factor: Critical

Score: 10


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

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


Risk Factor: Critical

Base Score: 10

Temporal Score: 9.5

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

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

Vulnerability Information

CPE: cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*

Required KB Items: ms_dns/version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/14/2020

Vulnerability Publication Date: 7/14/2020

Reference Information

CVE: CVE-2020-1350

MSKB: 4558998, 4565535, 4565537, 4565539, 4565524, 4565540, 4565541, 4565511, 4565536, 4565529, 4565503, 4565483

MSFT: MS20-4558998, MS20-4565535, MS20-4565537, MS20-4565539, MS20-4565524, MS20-4565540, MS20-4565541, MS20-4565511, MS20-4565536, MS20-4565529, MS20-4565503, MS20-4565483

IAVA: 2020-A-0299