CVE-2020-1472: Netlogon Elevation of Privilege Vulnerability

1. In CISA KEVCISA KEV catalogue3 Nov 2021
2. Exploited (reported): not seen
3. Scanning observed: not seen
4. Proof of concept public: not seen
5. Not established: not seen

DescriptionCVE.org

An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.

• Microsoft · Windows Server version 2004from 10.0.0 before publication
• Microsoft · Windows Server 2019from 10.0.0 before publication
• Microsoft · Windows Server 2019 (Server Core installation)from 10.0.0 before publication
• Microsoft · Windows Server, version 1909 (Server Core installation)from 10.0.0 before publication
• Microsoft · Windows Server, version 1903 (Server Core installation)from 10.0.0 before publication
• Microsoft · Windows Server 2016from 10.0.0 before publication
• Microsoft · Windows Server 2016 (Server Core installation)from 10.0.0 before publication
• Microsoft · Windows Server 2008 R2 Service Pack 1from 6.1.0 before publication
• Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)from 6.0.0 before publication
• Microsoft · Windows Server 2012from 6.2.0 before publication
• Microsoft · Windows Server 2012 (Server Core installation)from 6.2.0 before publication
• Microsoft · Windows Server 2012 R2from 6.3.0 before publication
• Microsoft · Windows Server 2012 R2 (Server Core installation)from 6.3.0 before publication
• Microsoft · Windows Server version 20H2from 10.0.0 before publication

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.

CISA KEV

Listed since 3 Nov 2021 · known ransomware use · catalogue entry

Public check

No public nuclei template

Vendor

Microsoft

Published

August 2020

Band

Exploited in the wild, August 2020

1. 5 Nov
   CISA’s KEV entry now notes known ransomware use CISA
2. 3 Nov 2021
   CISA added it to the KEV catalogue CISA

• NVD entrynvd.nist.gov
• CISA KEV cataloguecisa.gov
• CVE recordcve.org
• Vendor advisoryusn.ubuntu.com
• Vendor advisoryusn.ubuntu.com
• Vendor advisorylists.fedoraproject.org
• Vendor advisorylists.opensuse.org
• Vendor advisorylists.opensuse.org
• Vendor advisorylists.fedoraproject.org
• Vendor advisorylists.fedoraproject.org
• Vendor advisoryusn.ubuntu.com
• Vendor advisorysecurity.gentoo.org
• portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2portal.msrc.microsoft.com
• Third-party advisorykb.cert.org
• oracle.com/security-alerts/cpuApr2021.htmloracle.com

6 more references are in the CVE record.