gsd-2020-1243
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application.The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests., aka 'Windows Hyper-V Denial of Service Vulnerability'.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-1243",
"description": "A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application.The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests., aka \u0027Windows Hyper-V Denial of Service Vulnerability\u0027.",
"id": "GSD-2020-1243"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-1243"
],
"details": "A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application.The security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests., aka \u0027Windows Hyper-V Denial of Service Vulnerability\u0027.",
"id": "GSD-2020-1243",
"modified": "2023-12-13T01:21:57.703893Z",
"schema_version": "1.4.0"
}
},
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},
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{
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},
{
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},
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},
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},
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},
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},
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}
]
}
},
{
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"version": {
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}
]
}
},
{
"product_name": "Windows Server 2016",
"version": {
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"version_name": "10.0.0",
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}
]
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},
{
"product_name": "Windows Server 2016 (Server Core installation)",
"version": {
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}
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}
]
},
"vendor_name": "Microsoft"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "\u003cp\u003eA denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.\u003c/p\u003e\n\u003cp\u003eTo exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests.\u003c/p\u003e\n"
}
]
},
"impact": {
"cvss": [
{
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
"version": "3.1"
}
]
},
"problemtype": {
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"description": [
{
"lang": "eng",
"value": "Denial of Service"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243",
"refsource": "MISC",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"configurations": [
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"descriptions": [
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"value": "\u003cp\u003eA denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate specific malicious data from a user on a guest operating system.\u003c/p\u003e\n\u003cp\u003eTo exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by resolving the conditions where Hyper-V would fail to handle these requests.\u003c/p\u003e\n"
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad de denegaci\u00f3n de servicio cuando Microsoft Hyper-V en un servidor host presenta un fallo al comprobar apropiadamente datos maliciosos espec\u00edficos de un usuario en un sistema operativo invitado. Para explotar la vulnerabilidad, un atacante que ya presenta una cuenta privilegiada en un sistema operativo invitado, ejecut\u00e1ndose como una m\u00e1quina virtual, podr\u00eda correr una aplicaci\u00f3n especialmente dise\u00f1ada. La actualizaci\u00f3n de seguridad aborda la vulnerabilidad al resolver las condiciones en las que Hyper-V no podr\u00eda manejar estas peticiones, tambi\u00e9n se conoce como \"Windows Hyper-V Denial of Service Vulnerability\""
}
],
"id": "CVE-2020-1243",
"lastModified": "2023-12-31T20:16:02.387",
"metrics": {
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"baseSeverity": "MEDIUM",
"cvssData": {
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"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
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"userInteractionRequired": false
}
],
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"scope": "UNCHANGED",
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"source": "nvd@nist.gov",
"type": "Secondary"
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},
"published": "2020-10-16T23:15:17.680",
"references": [
{
"source": "secure@microsoft.com",
"tags": [
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],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1243"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Modified",
"weaknesses": [
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],
"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.