GSD-2020-1025
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation, aka 'Microsoft Office Elevation of Privilege Vulnerability'.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-1025",
"description": "An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation, aka \u0027Microsoft Office Elevation of Privilege Vulnerability\u0027.",
"id": "GSD-2020-1025"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-1025"
],
"details": "An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation, aka \u0027Microsoft Office Elevation of Privilege Vulnerability\u0027.",
"id": "GSD-2020-1025",
"modified": "2023-12-13T01:21:58.669157Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "secure@microsoft.com",
"ID": "CVE-2020-1025",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Skype for Business Server 2019 CU2",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "7.0.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Skype for Business Server 2015 CU 8",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "2015 CU 8",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Lync Server 2013",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft SharePoint Enterprise Server 2016",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "16.0.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft SharePoint Server 2019",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "16.0.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft SharePoint Foundation 2013 Service Pack 1",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.0.0",
"version_value": "publication"
}
]
}
}
]
},
"vendor_name": "Microsoft"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "\u003cp\u003eAn elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would need to modify the token.\u003c/p\u003e\n\u003cp\u003eThe update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens.\u003c/p\u003e\n"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Elevation of Privilege"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1025",
"refsource": "MISC",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1025"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:lync:2013:*:*:*:*:*:*:*",
"matchCriteriaId": "57F4F185-8709-4846-B017-A09C7A0D58B8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*",
"matchCriteriaId": "9C082CC4-6128-475D-BC19-B239E348FDB2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*",
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"matchCriteriaId": "6122D014-5BF1-4AF4-8B4D-80205ED7785E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:skype_for_business:2015:cumulative_update_8:*:*:*:*:*:*",
"matchCriteriaId": "9CE0C9B4-FCB1-4A31-84DA-09756C93FDAD",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:skype_for_business:2019:cumulative_update_2:*:*:*:*:*:*",
"matchCriteriaId": "38ABD417-45D5-4212-BC19-929B71E6D1D2",
"vulnerable": true
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"negate": false,
"operator": "OR"
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],
"descriptions": [
{
"lang": "en",
"value": "\u003cp\u003eAn elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would need to modify the token.\u003c/p\u003e\n\u003cp\u003eThe update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens.\u003c/p\u003e\n"
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad de elevaci\u00f3n de privilegios cuando Microsoft SharePoint Server y Skype for Business Server manejan inapropiadamente la comprobaci\u00f3n de del token de OAuth, tambi\u00e9n se conoce como \"Microsoft Office Elevation of Privilege Vulnerability\""
}
],
"id": "CVE-2020-1025",
"lastModified": "2024-01-09T20:15:42.577",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-07-14T23:15:11.447",
"references": [
{
"source": "secure@microsoft.com",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1025"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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