Microsoft Netlogon Elevation of Privilege (Zerologon) (Remote)

High Nessus Plugin ID 140657

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VPR Score: 10

Synopsis

The Netlogon service on the remote host is vulnerable to the zerologon vulnerability.

Description

The Netlogon service on the remote host is vulnerable to the zerologon vulnerability. An unauthenticated, remote attacker can exploit this, by spoofing a client credential to establish a secure channel to a domain controller using the Netlogon remote protocol (MS-NRPC). The attacker can then use this to change the computer's Active Directory (AD) password, and escalate privileges to domain admin.

In order for this plugin to run, you must disable 'Only use credentials provided by the user' in the scanner settings.

Solution

Refer to Microsoft's advisory for security guidance.

See Also

http://www.nessus.org/u?dfa970a7

http://www.nessus.org/u?f2e259c1

https://www.secura.com/blog/zero-logon

https://www.secura.com/pathtoimg.php?id=2055

https://github.com/SecuraBV/CVE-2020-1472

http://www.nessus.org/u?26edeb9b

https://www.kb.cert.org/vuls/id/490028

Plugin Details

Severity: High

ID: 140657

File Name: netlogon_zerologon_CVE-2020-1472.nbin

Version: 1.8

Type: remote

Agent: windows

Family: Windows

Published: 2020/09/18

Updated: 2020/10/08

Dependencies: 10736, 11936

Risk Information

Risk Factor: High

VPR Score: 10

CVSS Score Source: CVE-2020-1472

CVSS v2.0

Base Score: 9.3

Temporal Score: 8.1

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

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

CVSS v3.0

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:/o:microsoft:windows

Required KB Items: Host/OS, Services/epmap

Excluded KB Items: global_settings/supplied_logins_only

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 2020/08/11

Vulnerability Publication Date: 2020/08/11

Reference Information

CVE: CVE-2020-1472

IAVA: 2020-A-0438, 0001-A-0647