Zerologon — Microsoft Windows Server 2008 R2 Service Pack 1 Vulnerability
CVE-2020-1472
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 vu…
EPSS: 0.944 (100.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: 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.
Affected products
- Microsoft Windows Server 2008 R2 Service Pack 1 — versions 6.1.0
- Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core Installation) — versions 6.0.0
- Microsoft Windows Server 2012 — versions 6.2.0
- Microsoft Windows Server 2012 R2 — versions 6.3.0
- Microsoft Windows Server 2012 R2 (Server Core Installation) — versions 6.3.0
- Microsoft Windows Server 2012 (Server Core Installation) — versions 6.2.0
- Microsoft Windows Server 2016 — versions 10.0.0
- Microsoft Windows Server 2016 (Server Core Installation) — versions 10.0.0
- Microsoft Windows Server 2019 — versions 10.0.0
- Microsoft Windows Server 2019 (Server Core Installation) — versions 10.0.0
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1472 (x_refsource_MISC)
- VU#490028 (third-party-advisory, x_refsource_CERT-VN)
- [oss-security] 20200917 Samba and CVE-2020-1472 ("Zerologon") (mailing-list, x_refsource_MLIST)
- USN-4510-1 (vendor-advisory, x_refsource_UBUNTU)
- USN-4510-2 (vendor-advisory, x_refsource_UBUNTU)
- FEDORA-2020-0be2776ed3 (vendor-advisory, x_refsource_FEDORA)
- openSUSE-SU-2020:1513 (vendor-advisory, x_refsource_SUSE)
- openSUSE-SU-2020:1526 (vendor-advisory, x_refsource_SUSE)
- FEDORA-2020-77c15664b0 (vendor-advisory, x_refsource_FEDORA)
- FEDORA-2020-a1d139381a (vendor-advisory, x_refsource_FEDORA)
Frequently asked questions
- What is CVE-2020-1472?
- CVE-2020-1472 is a medium-severity vulnerability in Microsoft Windows Server 2008 R2 Service Pack 1. CVSS score: 5.5/10. Published 2020-08-17.
- How severe is CVE-2020-1472?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-1472 known to be exploited?
- Yes. CVE-2020-1472 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 479 public proof-of-concept repositories are indexed.