gsd-2021-40444
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Microsoft MSHTML Remote Code Execution Vulnerability
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-40444",
"description": "Microsoft MSHTML Remote Code Execution Vulnerability",
"id": "GSD-2021-40444",
"references": [
"https://packetstormsecurity.com/files/cve/CVE-2021-40444"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-40444"
],
"details": "Microsoft MSHTML Remote Code Execution Vulnerability",
"id": "GSD-2021-40444",
"modified": "2023-12-13T01:23:25.377535Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cisa.gov": {
"cveID": "CVE-2021-40444",
"dateAdded": "2021-11-03",
"dueDate": "2021-11-17",
"product": "Microsoft MSHTML",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Microsoft MSHTML Remote Code Execution Vulnerability",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft Windows, Server (spec. IE) All Arbitrary Code Execution"
},
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "secure@microsoft.com",
"ID": "CVE-2021-40444",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Windows 10 Version 1809",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.17763.2183"
}
]
}
},
{
"product_name": "Windows Server 2019",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.17763.2183"
}
]
}
},
{
"product_name": "Windows Server 2019 (Server Core installation)",
"version": {
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{
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"version_name": "10.0.0",
"version_value": "10.0.17763.2183"
}
]
}
},
{
"product_name": "Windows 10 Version 1909",
"version": {
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{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.18363.1801"
}
]
}
},
{
"product_name": "Windows 10 Version 21H1",
"version": {
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{
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"version_name": "10.0.0",
"version_value": "10.0.19043.1237"
}
]
}
},
{
"product_name": "Windows Server 2022",
"version": {
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{
"version_affected": "\u003c",
"version_name": "10.0.0",
"version_value": "10.0.20348.230"
}
]
}
},
{
"product_name": "Windows 10 Version 2004",
"version": {
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{
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"version_name": "10.0.0",
"version_value": "10.0.19041.1237"
}
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}
},
{
"product_name": "Windows Server version 2004",
"version": {
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{
"product_name": "Windows 10 Version 1507",
"version": {
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"version": {
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"version_name": "10.0.0",
"version_value": "10.0.14393.4651"
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},
{
"product_name": "Windows Server 2016",
"version": {
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},
{
"product_name": "Windows Server 2016 (Server Core installation)",
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},
{
"product_name": "Windows 7",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.1.0",
"version_value": "6.1.7601.25712"
}
]
}
},
{
"product_name": "Windows 7 Service Pack 1",
"version": {
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"version_name": "6.1.0",
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}
},
{
"product_name": "Windows 8.1",
"version": {
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{
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"version_name": "6.3.0",
"version_value": "6.3.9600.20120"
}
]
}
},
{
"product_name": "Windows Server 2008 Service Pack 2",
"version": {
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"version_name": "6.0.0",
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},
{
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"version": {
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},
{
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},
{
"product_name": "Windows Server 2008 R2 Service Pack 1",
"version": {
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},
{
"product_name": "Windows Server 2008 R2 Service Pack 1 (Server Core installation)",
"version": {
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}
},
{
"product_name": "Windows Server 2012",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.2.0",
"version_value": "6.2.9200.23462"
}
]
}
},
{
"product_name": "Windows Server 2012 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.2.0",
"version_value": "6.2.9200.23462"
}
]
}
},
{
"product_name": "Windows Server 2012 R2",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.3.0",
"version_value": "6.3.9600.20120"
}
]
}
},
{
"product_name": "Windows Server 2012 R2 (Server Core installation)",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "6.3.0",
"version_value": "6.3.9600.20120"
}
]
}
}
]
},
"vendor_name": "Microsoft"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "\u003cp\u003eMicrosoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents.\u003c/p\u003e\n\u003cp\u003eAn attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\u003c/p\u003e\n\u003cp\u003eMicrosoft Defender Antivirus and Microsoft Defender for Endpoint both provide detection and protections for the known vulnerability. Customers should keep antimalware products up to date. Customers who utilize automatic updates do not need to take additional action. Enterprise customers who manage updates should select the detection build 1.349.22.0 or newer and deploy it across their environments. Microsoft Defender for Endpoint alerts will be displayed as: \u201cSuspicious Cpl File Execution\u201d.\u003c/p\u003e\n\u003cp\u003eUpon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs.\u003c/p\u003e\n\u003cp\u003ePlease see the \u003cstrong\u003eMitigations\u003c/strong\u003e and \u003cstrong\u003eWorkaround\u003c/strong\u003e sections for important information about steps you can take to protect your system from this vulnerability.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eUPDATE\u003c/strong\u003e September 14, 2021: Microsoft has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. Please see the FAQ for important information about which updates are applicable to your system.\u003c/p\u003e\n"
}
]
},
"impact": {
"cvss": [
{
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L/E:P/RL:O/RC:C",
"version": "3.1"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Remote Code Execution"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40444",
"refsource": "MISC",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40444"
},
{
"name": "http://packetstormsecurity.com/files/164210/Microsoft-Windows-MSHTML-Overview.html",
"refsource": "MISC",
"url": "http://packetstormsecurity.com/files/164210/Microsoft-Windows-MSHTML-Overview.html"
},
{
"name": "http://packetstormsecurity.com/files/165214/Microsoft-Office-Word-MSHTML-Remote-Code-Execution.html",
"refsource": "MISC",
"url": "http://packetstormsecurity.com/files/165214/Microsoft-Office-Word-MSHTML-Remote-Code-Execution.html"
},
{
"name": "http://packetstormsecurity.com/files/167317/Microsoft-Office-MSDT-Follina-Proof-Of-Concept.html",
"refsource": "MISC",
"url": "http://packetstormsecurity.com/files/167317/Microsoft-Office-MSDT-Follina-Proof-Of-Concept.html"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"cisaActionDue": "2021-11-17",
"cisaExploitAdd": "2021-11-03",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Microsoft MSHTML Remote Code Execution Vulnerability",
"configurations": [
{
"nodes": [
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],
"descriptions": [
{
"lang": "en",
"value": "\u003cp\u003eMicrosoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents.\u003c/p\u003e\n\u003cp\u003eAn attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.\u003c/p\u003e\n\u003cp\u003eMicrosoft Defender Antivirus and Microsoft Defender for Endpoint both provide detection and protections for the known vulnerability. Customers should keep antimalware products up to date. Customers who utilize automatic updates do not need to take additional action. Enterprise customers who manage updates should select the detection build 1.349.22.0 or newer and deploy it across their environments. Microsoft Defender for Endpoint alerts will be displayed as: \u201cSuspicious Cpl File Execution\u201d.\u003c/p\u003e\n\u003cp\u003eUpon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs.\u003c/p\u003e\n\u003cp\u003ePlease see the \u003cstrong\u003eMitigations\u003c/strong\u003e and \u003cstrong\u003eWorkaround\u003c/strong\u003e sections for important information about steps you can take to protect your system from this vulnerability.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eUPDATE\u003c/strong\u003e September 14, 2021: Microsoft has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. Please see the FAQ for important information about which updates are applicable to your system.\u003c/p\u003e\n"
},
{
"lang": "es",
"value": "Una Vulnerabilidad de Ejecuci\u00f3n de C\u00f3digo Remota de Microsoft MSHTML"
}
],
"id": "CVE-2021-40444",
"lastModified": "2023-12-28T20:16:06.563",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
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"attackVector": "NETWORK",
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"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L",
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},
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"type": "Primary"
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{
"cvssData": {
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"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Secondary"
}
]
},
"published": "2021-09-15T12:15:16.467",
"references": [
{
"source": "secure@microsoft.com",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/164210/Microsoft-Windows-MSHTML-Overview.html"
},
{
"source": "secure@microsoft.com",
"tags": [
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],
"url": "http://packetstormsecurity.com/files/165214/Microsoft-Office-Word-MSHTML-Remote-Code-Execution.html"
},
{
"source": "secure@microsoft.com",
"tags": [
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"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/167317/Microsoft-Office-MSDT-Follina-Proof-Of-Concept.html"
},
{
"source": "secure@microsoft.com",
"tags": [
"Mitigation",
"Patch",
"Vendor Advisory"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40444"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-22"
}
],
"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.