{ "document": { "acknowledgments": [ { "names": [ "Bill Demirkapi with Microsoft" ] } ], "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-2023-36873 .NET Framework Spoofing Vulnerability - HTML", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36873" }, { "category": "self", "summary": "CVE-2023-36873 .NET Framework Spoofing Vulnerability - CSAF", "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-36873.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": ".NET Framework Spoofing Vulnerability", "tracking": { "current_release_date": "2023-10-24T07:00:00.000Z", "generator": { "date": "2025-01-01T01:58:31.370Z", "engine": { "name": "MSRC Generator", "version": "1.0" } }, "id": "msrc_CVE-2023-36873", "initial_release_date": "2023-08-08T07:00:00.000Z", "revision_history": [ { "date": "2023-08-08T07:00:00.000Z", "legacy_version": "1", "number": "1", "summary": "Information published." }, { "date": "2023-10-24T07:00:00.000Z", "legacy_version": "2", "number": "2", "summary": "In the Security Updates table, added .NET Framework 3.5 and 4.6.2 installed on Windows 10 for 32-bit systems and Windows 10 for x64-based systems; added .NET Framework 3.5 and 4.6.2/4.7./4.7.1/4.7.2 installed on all supported editions of Windows 10 version 1607 and Windows Server 2016 as these versions of .NET Framework are affected by this vulnerability. Microsoft recommends that customers install the August 2023 updates to be fully protected from this vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action." } ], "status": "final", "version": "2" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_version_range", "name": "<4.8.4654.06", "product": { "name": "Microsoft .NET Framework 4.8 <4.8.4654.06", "product_id": "48" } }, { "category": "product_version", "name": "4.8.4654.06", "product": { "name": "Microsoft .NET Framework 4.8 4.8.4654.06", "product_id": "11650-10852" } } ], "category": "product_name", "name": "Microsoft .NET Framework 4.8" }, { "branches": [ { "category": "product_version_range", "name": "<4.8.4654.06", "product": { "name": "Microsoft .NET Framework 4.8 <4.8.4654.06", "product_id": "49" } }, { "category": "product_version", "name": "4.8.4654.06", "product": { "name": "Microsoft .NET Framework 4.8 4.8.4654.06", "product_id": "11650-10853" } } ], "category": "product_name", "name": "Microsoft .NET Framework 4.8" }, { "branches": [ { 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.NET Framework 3.5 and 4.6.2 10.0.10240.20107", "product_id": "12128-10729" } } ], "category": "product_name", "name": "Microsoft .NET Framework 3.5 and 4.6.2" }, { "branches": [ { "category": "product_version_range", "name": "<10.0.10240.20107", "product": { "name": "Microsoft .NET Framework 3.5 and 4.6.2 <10.0.10240.20107", "product_id": "2" } }, { "category": "product_version", "name": "10.0.10240.20107", "product": { "name": "Microsoft .NET Framework 3.5 and 4.6.2 10.0.10240.20107", "product_id": "12128-10735" } } ], "category": "product_name", "name": "Microsoft .NET Framework 3.5 and 4.6.2" } ] }, "vulnerabilities": [ { "cve": "CVE-2023-36873", "cwe": { "id": "CWE-20", "name": "Improper Input Validation" }, "notes": [ { "category": "general", "text": "Microsoft", "title": "Assigning CNA" }, { "category": "faq", "text": "Successful exploitation of this vulnerability requires an attacker to create a crafted certificate in order to validate themselves as a trusted source.", "title": "According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?" } ], "product_status": { "fixed": [ "11650-10049", "11650-10051", "11650-10378", "11650-10379", "11650-10483", "11650-10543", "11650-10816", "11650-10852", "11650-10853", "11650-10855", "11676-11568", "11676-11569", "11676-11571", "11676-11572", "11676-11923", "11676-11924", "11676-11926", "11676-11927", "11676-11929", "11676-11930", "11676-11931", "11676-12097", "11676-12098", "11676-12099", "11677-11568", "11677-11569", "11677-11570", "11677-11571", "11677-11572", "11723-10816", "11723-10852", "11723-10853", "11723-10855", "11863-10049", "11863-10051", "11863-10378", "11863-10379", "11863-10483", "11863-10543", "12079-11923", "12079-11924", "12079-11926", "12079-11927", "12079-11929", "12079-11930", "12079-11931", "12079-12085", "12079-12086", "12079-12097", "12079-12098", "12079-12099", "12115-10287", "12115-9312", "12115-9318", "12115-9344", "12128-10729", "12128-10735" ], "known_affected": [ "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57" ] }, "references": [ { "category": "self", "summary": "CVE-2023-36873 .NET Framework Spoofing Vulnerability - HTML", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36873" }, { "category": "self", "summary": "CVE-2023-36873 .NET Framework Spoofing Vulnerability - CSAF", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36873" } ], "remediations": [ { "category": "vendor_fix", "date": "2023-08-08T07:00:00.000Z", "details": "4.8.4654.06:Security Update:https://support.microsoft.com/help/5028952", "product_ids": [ "48" ], "url": "https://support.microsoft.com/help/5028952" }, { "category": "vendor_fix", "date": "2023-08-08T07:00:00.000Z", "details": 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Only:https://support.microsoft.com/help/5029569", "product_ids": [ "5", "6" ], "url": "https://support.microsoft.com/help/5029569" }, { "category": "vendor_fix", "date": "2023-08-08T07:00:00.000Z", "details": "10.0.10240.20107:Security Update:https://support.microsoft.com/help/5029259", "product_ids": [ "1", "2" ], "url": "https://support.microsoft.com/help/5029259" } ], "scores": [ { "cvss_v3": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "environmentalsScore": 0.0, "exploitCodeMaturity": "PROOF_OF_CONCEPT", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "remediationLevel": "OFFICIAL_FIX", "reportConfidence": "CONFIRMED", "scope": "UNCHANGED", "temporalScore": 6.7, "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "55", "56", "57" ] } ], "threats": [ { "category": "impact", "details": "Spoofing" }, { "category": "exploit_status", "details": "Exploited:No;Latest Software Release:Exploitation Less Likely" } ], "title": ".NET Framework Spoofing Vulnerability" } ] }