{"containers": {"cna": {"title": "Netlogon Elevation of Privilege Vulnerability", "datePublic": "2020-08-11T07:00:00.000Z", "affected": [{"vendor": "Microsoft", "product": "Windows Server version 2004", "cpes": ["cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019", "cpes": ["cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server, version 1909 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server, version 1903 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016", "cpes": ["cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2008 R2 Service Pack 1", "cpes": ["cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.1.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server version 20H2", "cpes": ["cpe:2.3:o:microsoft:windows_server_20H2:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "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). 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{"containers": {"cna": {"title": "Netlogon Elevation of Privilege Vulnerability", "datePublic": "2020-08-11T07:00:00.000Z", "affected": [{"vendor": "Microsoft", "product": "Windows Server version 2004", "cpes": ["cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019", "cpes": ["cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2019 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server, version 1909 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_1909:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server, version 1903 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016", "cpes": ["cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2016 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2008 R2 Service Pack 1", "cpes": ["cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.1.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.2.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server 2012 R2 (Server Core installation)", "cpes": ["cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "6.3.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Windows Server version 20H2", "cpes": ["cpe:2.3:o:microsoft:windows_server_20H2:*:*:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "10.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "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.\nTo exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access.\nMicrosoft 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.\nFor 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).\nWhen the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. 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See Microsoft Technical Security Notifications.\n", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "Elevation of Privilege", "lang": "en-US", "type": "Impact"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2024-05-29T16:32:50.654Z"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1472"}, {"name": "VU#490028", "tags": ["third-party-advisory", "x_refsource_CERT-VN"], "url": "https://www.kb.cert.org/vuls/id/490028"}, {"name": "[oss-security] 20200917 Samba and CVE-2020-1472 (\"Zerologon\")", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2020/09/17/2"}, {"name": "USN-4510-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/4510-1/"}, {"name": "USN-4510-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": 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An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network.\nTo exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access.\nMicrosoft 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.\nFor 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).\nWhen 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.\n"}, {"lang": "es", "value": "Se presenta una vulnerabilidad de elevaci\u00f3n de privilegios cuando un atacante establece una conexi\u00f3n de canal seguro Netlogon vulnerable hacia un controlador de dominio, usando el Netlogon Remote Protocol (MS-NRPC), tambi\u00e9n se conoce como \"Netlogon Elevation of Privilege Vulnerability\"."}], "id": "CVE-2020-1472", "lastModified": "2025-10-29T13:54:15.257", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 9.3, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", 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{"affected_release": [{"advisory": "RHSA-2020:5439", "cpe": "cpe:/o:redhat:enterprise_linux:7", "impact": "moderate", "package": "samba-0:4.10.16-9.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-12-15T00:00:00Z"}, {"advisory": "RHSA-2021:1647", "cpe": "cpe:/a:redhat:enterprise_linux:8", "impact": "moderate", "package": "openchange-0:2.3-27.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:1647", "cpe": "cpe:/a:redhat:enterprise_linux:8", "impact": "moderate", "package": "samba-0:4.13.3-3.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:1647", "cpe": "cpe:/o:redhat:enterprise_linux:8", "impact": "moderate", "package": "openchange-0:2.3-27.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:1647", "cpe": "cpe:/o:redhat:enterprise_linux:8", "impact": "moderate", "package": "samba-0:4.13.3-3.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:3723", "cpe": "cpe:/a:redhat:storage:3.5:samba:el7", "impact": "moderate", "package": "samba-0:4.11.6-112.el7rhgs", "product_name": "Red Hat Gluster Storage 3.5 for RHEL 7", "release_date": "2021-10-05T00:00:00Z"}, {"advisory": "RHBA-2021:1503", "cpe": "cpe:/a:redhat:storage:3.5:samba:el8", "impact": "moderate", "package": "samba-0:4.13.7-101.el8rhgs", "product_name": "Red Hat Gluster Storage 3.5 for RHEL 8", "release_date": "2021-05-05T00:00:00Z"}], "bugzilla": {"description": "samba: Netlogon elevation of privilege vulnerability (Zerologon)", "id": "1879822", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1879822"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-287", "details": ["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.\nTo exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access.\nMicrosoft 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.\nFor 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).\nWhen 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.", "A flaw was found in the Microsoft Windows Netlogon Remote Protocol (MS-NRPC), where it reuses a known, static, zero-value initialization vector (IV) in AES-CFB8 mode. This flaw allows an unauthenticated attacker to impersonate a domain-joined computer, including a domain controller, and possibly obtain domain administrator\nprivileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."], "mitigation": {"lang": "en:us", "value": "This flaw can be mitigated by using \"server schannel = yes\" in the smb.conf configuration file."}, "name": "CVE-2020-1472", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "samba4", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2020-09-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-1472\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-1472\nhttps://kb.cert.org/vuls/id/490028#Samba\nhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1472\nhttps://www.samba.org/samba/security/CVE-2020-1472.html\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog"], "statement": "As per upstream samba domain controllers (AD and NT4-like) can be impacted by the ZeroLogon CVE-2020-1472. Samba packages shipped with Red Hat Gluster Storage 3, Red Hat Enterprise Linux 7 and 8 are not vulnerable by default, since they have \"server schannel\" enabled by default in its configuration file.", "threat_severity": "Critical"}

{}