CVE-2020-1472 (GCVE-0-2020-1472)

Vulnerability from cvelistv5 – Published: 2020-08-17 19:13 – Updated: 2025-10-21 23:35
VLAI? CISA ENISA
Summary
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
CWE
  • Elevation of Privilege
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows Server version 2004 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server 2019 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server, version 1909 (Server Core installation) Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server, version 1903 (Server Core installation) Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server 2016 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
 Create a notification for this product.
    Microsoft Windows Server 2008 R2 Service Pack 1 Affected: 6.1.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) Affected: 6.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server 2012 Affected: 6.2.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server 2012 (Server Core installation) Affected: 6.2.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server 2012 R2 Affected: 6.3.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*
 Create a notification for this product.
    Microsoft Windows Server version 20H2 Affected: 10.0.0 , < publication (custom)
    cpe:2.3:o:microsoft:windows_server_20H2:*:*:*:*:*:*:*:*
 Create a notification for this product.
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2021-11-03

Due date: 2020-09-21

Required action: Apply updates per vendor instructions.

Used in ransomware: Known

Notes: Reference CISA's ED 20-04 (https://www.cisa.gov/news-events/directives/ed-20-04-mitigate-netlogon-elevation-privilege-vulnerability-august-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-04. https://nvd.nist.gov/vuln/detail/CVE-2020-1472

ENISA Known Exploited Vulnerability
Data from the ENISA CNW Known Exploited Vulnerabilities Catalog
Vendor/Product: Microsoft | Product: Netlogon (ZeroLogon)

CVE: CVE-2020-1472

EUVD: EUVD-2020-12346

Date reported: 23/01/25

Exploitation type: ransomware

Show details on NVD website
To clipboard 

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        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/159190/Zerologon-Proof-Of-Concept.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.synology.com/security/advisory/Synology_SA_20_21"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/160127/Zerologon-Netlogon-Privilege-Escalation.html"
        }
      ],
      "title": "Netlogon Elevation of Privilege Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2020-1472",
    "datePublished": "2020-08-17T19:13:05.000Z",
    "dateReserved": "2019-11-04T00:00:00.000Z",
    "dateUpdated": "2025-10-21T23:35:37.656Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
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      "cveID": "CVE-2020-1472",
      "cwes": "[\"CWE-330\"]",
      "dateAdded": "2021-11-03",
      "dueDate": "2020-09-21",
      "knownRansomwareCampaignUse": "Known",
      "notes": "Reference CISA\u0027s ED 20-04 (https://www.cisa.gov/news-events/directives/ed-20-04-mitigate-netlogon-elevation-privilege-vulnerability-august-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-04. https://nvd.nist.gov/vuln/detail/CVE-2020-1472",
      "product": "Netlogon",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "Microsoft\u0027s Netlogon Remote Protocol (MS-NRPC) contains a privilege escalation vulnerability when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller. An attacker who successfully exploits the vulnerability could run a specially crafted application on a device on the network. The vulnerability is also known under the moniker of Zerologon.",
      "vendorProject": "Microsoft",
      "vulnerabilityName": "Microsoft Netlogon Privilege Escalation Vulnerability"
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    "cnw_known_exploited": {
      "CVE": "CVE-2020-1472",
      "EUVD": "EUVD-2020-12346",
      "cwes": "-",
      "dateReported": "23/01/25",
      "exploitationType": "ransomware",
      "notes": "-",
      "originSource": "cnw",
      "product": "Netlogon (ZeroLogon)",
      "shortDescription": "-",
      "threatActorsExploiting": "-",
      "vendorProject": "Microsoft",
      "vulnerabilityName": "-"
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      "id": "CVE-2020-1472",
      "lastModified": "2024-11-21T05:10:37.640",
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      "cveMetadata": "{\"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"assignerShortName\": \"microsoft\", \"cveId\": \"CVE-2020-1472\", \"datePublished\": \"2020-08-17T19:13:05.000Z\", \"dateReserved\": \"2019-11-04T00:00:00.000Z\", \"dateUpdated\": \"2025-10-21T19:54:22.905Z\", \"state\": \"PUBLISHED\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.