Netlogon Elevation of Privilege Vulnerability (Microsoft Windows Server version 2004)
At a glance
- Source
- NVD
- EPSS
- EPSS 99.39 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Analyzed
Description
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.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1472
- https://www.kb.cert.org/vuls/id/490028
- http://www.openwall.com/lists/oss-security/2020/09/17/2
- https://usn.ubuntu.com/4510-1/
- https://usn.ubuntu.com/4510-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H4OTFBL6YDVFH2TBJFJIE4FMHPJEEJK3/
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00080.html
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00086.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAPQQZZAT4TG3XVRTAFV2Y3S7OAHFBUP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST6X3A2XXYMGD4INR26DQ4FP4QSM753B/
- https://usn.ubuntu.com/4559-1/
- https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
- https://security.gentoo.org/glsa/202012-24
- https://www.oracle.com/security-alerts/cpuApr2021.html
- http://packetstormsecurity.com/files/159190/Zerologon-Proof-Of-Concept.html
- https://www.synology.com/security/advisory/Synology_SA_20_21
- http://packetstormsecurity.com/files/160127/Zerologon-Netlogon-Privilege-Escalation.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1472
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | 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 | microsoft |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | NVD · secure@microsoft.com (Secondary) |
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · nvd@nist.gov (Secondary) |
| CVSS 2.0 | HIGH 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-12346
- GCVE · GCVE-0-2020-1472
CERT-FR advisories
- CERTFR-2021-AVI-772 — Multiples vulnérabilités dans les produits Schneider · cert.ssi.gouv.fr
- CERTFR-2021-AVI-638 — Multiples vulnérabilités dans Juniper Junos Space · cert.ssi.gouv.fr
- CERTFR-2021-AVI-589 — Multiples vulnérabilités dans Juniper Junos Space Log Collector · cert.ssi.gouv.fr
- CERTFR-2021-AVI-299 — Multiples vulnérabilités dans Oracle Systems · cert.ssi.gouv.fr
- CERTFR-2020-AVI-579 — Vulnérabilité dans Samba · cert.ssi.gouv.fr
- CERTFR-2020-AVI-501 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr
- CERTFR-2020-ALE-021 — Vulnérabilité dans Samba · cert.ssi.gouv.fr
- CERTFR-2020-ALE-020 — [Mà J] Vulnérabilité dans Microsoft Netlogon · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2004:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_20h2:-:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*cpe:2.3:a:synology:directory_server:*:*:*:*:*:*:*:*< 4.4.5-0101cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*< 4.10.18cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*≥ 4.11.0 < 4.11.13cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*≥ 4.12.0 < 4.12.7cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
Affected products
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |