gsd-2020-17049
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
Kerberos Security Feature Bypass Vulnerability
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-17049",
"description": "Kerberos Security Feature Bypass Vulnerability",
"id": "GSD-2020-17049",
"references": [
"https://www.suse.com/security/cve/CVE-2020-17049.html",
"https://alas.aws.amazon.com/cve/html/CVE-2020-17049.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-17049"
],
"details": "Kerberos Security Feature Bypass Vulnerability",
"id": "GSD-2020-17049",
"modified": "2023-12-13T01:21:50.302978Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "secure@microsoft.com",
"ID": "CVE-2020-17049",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Windows Server 2019",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.17763.2061"
}
]
}
},
{
"product_name": "Windows Server 2019 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.17763.2061"
}
]
}
},
{
"product_name": "Windows Server, version 1909 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Windows Server, version 1903 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Windows Server version 2004",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.19041.1110"
}
]
}
},
{
"product_name": "Windows Server 2016",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.14393.4530"
}
]
}
},
{
"product_name": "Windows Server 2016 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.14393.4530"
}
]
}
},
{
"product_name": "Windows Server 2008 Service Pack 2",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.0.0",
"version_value": "6.0.6003.21167"
}
]
}
},
{
"product_name": "Windows Server 2008 Service Pack 2 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.0.0",
"version_value": "6.0.6003.21167"
}
]
}
},
{
"product_name": "Windows Server 2008 Service Pack 2",
"version": {
"version_data": [
{
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"version_name": "6.0.0",
"version_value": "6.0.6003.21167"
}
]
}
},
{
"product_name": "Windows Server 2008 R2 Service Pack 1",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.1.0",
"version_value": "6.1.7601.25661"
}
]
}
},
{
"product_name": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.0.0",
"version_value": "6.1.7601.25661"
}
]
}
},
{
"product_name": "Windows Server 2012",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.2.0",
"version_value": "6.2.9200.23409"
}
]
}
},
{
"product_name": "Windows Server 2012 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.2.0",
"version_value": "6.2.9200.23409"
}
]
}
},
{
"product_name": "Windows Server 2012 R2",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.3.0",
"version_value": "6.3.9600.20069"
}
]
}
},
{
"product_name": "Windows Server 2012 R2 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.3.0",
"version_value": "6.3.9600.20069"
}
]
}
},
{
"product_name": "Windows Server version 20H2",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.19041.1110"
}
]
}
}
]
},
"vendor_name": "Microsoft"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "\u003cp\u003eA security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD).\u003c/p\u003e\n\u003cp\u003eTo exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it.\u003c/p\u003e\n\u003cp\u003eThe update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.\u003c/p\u003e\n"
}
]
},
"impact": {
"cvss": [
{
"baseScore": 6.6,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Security Feature Bypass"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17049",
"refsource": "MISC",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17049"
},
{
"name": "http://www.openwall.com/lists/oss-security/2021/11/10/3",
"refsource": "MISC",
"url": "http://www.openwall.com/lists/oss-security/2021/11/10/3"
},
{
"name": "https://security.gentoo.org/glsa/202309-06",
"refsource": "MISC",
"url": "https://security.gentoo.org/glsa/202309-06"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"configurations": [
{
"nodes": [
{
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"vulnerable": true
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{
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"negate": false,
"operator": "OR"
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"versionEndExcluding": "4.13.13",
"versionStartIncluding": "4.1.0",
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"descriptions": [
{
"lang": "en",
"value": "\u003cp\u003eA security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD).\u003c/p\u003e\n\u003cp\u003eTo exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it.\u003c/p\u003e\n\u003cp\u003eThe update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.\u003c/p\u003e\n"
},
{
"lang": "es",
"value": "Vulnerabilidad de Omisi\u00f3n de la Caracter\u00edstica de Seguridad de Kerberos"
}
],
"id": "CVE-2020-17049",
"lastModified": "2023-12-31T19:15:22.567",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "COMPLETE",
"baseScore": 9.0,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
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"attackVector": "NETWORK",
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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},
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"source": "secure@microsoft.com",
"type": "Primary"
},
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},
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"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Secondary"
}
]
},
"published": "2020-11-11T07:15:16.543",
"references": [
{
"source": "secure@microsoft.com",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2021/11/10/3"
},
{
"source": "secure@microsoft.com",
"tags": [
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"Vendor Advisory"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17049"
},
{
"source": "secure@microsoft.com",
"url": "https://security.gentoo.org/glsa/202309-06"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-863"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.