{
"document": {
"acknowledgments": [
{
"names": [
"Zhijingcheng Yu of National University of Singapore"
]
},
{
"names": [
"Jinhua Cui of National University of Defense Technology and National\nUniversity of Singapore"
]
},
{
"names": [
"Prateek Saxena of National University of Singapore"
]
},
{
"names": [
"Shweta Shinde of ETH Zurich\n"
]
}
],
"aggregate_severity": {
"namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
"text": "Important"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en-US",
"notes": [
{
"category": "general",
"text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
"title": "Disclaimer"
},
{
"category": "general",
"text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
"title": "Customer Action"
}
],
"publisher": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2021-33767 Open Enclave SDK Elevation of Privilege Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33767"
},
{
"category": "self",
"summary": "CVE-2021-33767 Open Enclave SDK Elevation of Privilege Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2021/msrc_cve-2021-33767.json"
},
{
"category": "external",
"summary": "Microsoft Exploitability Index",
"url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
},
{
"category": "external",
"summary": "Microsoft Support Lifecycle",
"url": "https://support.microsoft.com/lifecycle"
},
{
"category": "external",
"summary": "Common Vulnerability Scoring System",
"url": "https://www.first.org/cvss"
}
],
"title": "Open Enclave SDK Elevation of Privilege Vulnerability",
"tracking": {
"current_release_date": "2021-07-13T07:00:00.000Z",
"generator": {
"date": "2026-08-10T15:10:54.747Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2021-33767",
"initial_release_date": "2021-07-13T07:00:00.000Z",
"revision_history": [
{
"date": "2021-07-13T07:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
},
{
"date": "2021-07-13T07:00:00.000Z",
"legacy_version": "1.1",
"number": "2",
"summary": "Updated FAQ information. This is an informational change only."
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "<0.17.1",
"product": {
"name": "Open Enclave SDK <0.17.1",
"product_id": "1"
}
},
{
"category": "product_version",
"name": "0.17.1",
"product": {
"name": "Open Enclave SDK 0.17.1",
"product_id": "11652"
}
}
],
"category": "product_name",
"name": "Open Enclave SDK"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2021-33767",
"notes": [
{
"category": "general",
"text": "Microsoft",
"title": "Assigning CNA"
},
{
"category": "faq",
"text": "If you have a project that used the Open Enclave SDK and you have not rebuilt it using the latest version of the SDK, you might be affected by this vulnerability. The updated SDK release is available here: Open Enclave Releases. Confirm that you are using SDK build v0.17.1 or later.\nFor more information, see Open Enclave SDK Security Advisory for July 13, 2021.",
"title": "How do I know if I'm affected by this vulnerability?"
}
],
"product_status": {
"fixed": [
"11652"
],
"known_affected": [
"1"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2021-33767 Open Enclave SDK Elevation of Privilege Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33767"
},
{
"category": "self",
"summary": "CVE-2021-33767 Open Enclave SDK Elevation of Privilege Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2021/msrc_cve-2021-33767.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2021-07-13T07:00:00.000Z",
"details": "0.17.1:Security Update:https://github.com/openenclave/openenclave/security/advisories/GHSA-mj87-466f-jq42",
"product_ids": [
"1"
],
"url": "https://github.com/openenclave/openenclave/security/advisories/GHSA-mj87-466f-jq42"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalScore": 0.0,
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "CHANGED",
"temporalScore": 7.1,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"products": [
"1"
]
}
],
"threats": [
{
"category": "impact",
"details": "Elevation of Privilege"
},
{
"category": "exploit_status",
"details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely"
}
],
"title": "Open Enclave SDK Elevation of Privilege Vulnerability"
}
]
}