Vulnerability identifier: #VU45628

Vulnerability risk: High

CVSSv3.1: 9.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2020-1472

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Netlogon. A remote non-authenticated attacker can use MS-NRPC to connect to a domain controller to obtain domain administrator access. This vulnerability was dubbed ZeroLogon.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2008 R2 - 2019 2004

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1472
http://www.secura.com/blog/zero-logon

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.