{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Anonymous"
        ]
      }
    ],
    "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-2023-32021 Windows SMB Witness Service Security Feature Bypass Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-32021"
      },
      {
        "category": "self",
        "summary": "CVE-2023-32021 Windows SMB Witness Service Security Feature Bypass Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-32021.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": "Windows SMB Witness Service Security Feature Bypass Vulnerability",
    "tracking": {
      "current_release_date": "2023-06-13T07:00:00.000Z",
      "generator": {
        "date": "2025-01-01T01:43:29.895Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-32021",
      "initial_release_date": "2023-06-13T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-06-13T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.17763.4499",
            "product": {
              "name": "Windows Server 2019 \u003c10.0.17763.4499",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.17763.4499",
            "product": {
              "name": "Windows Server 2019 10.0.17763.4499",
              "product_id": "11571"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2019"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.17763.4499",
            "product": {
              "name": "Windows Server 2019 (Server Core installation) \u003c10.0.17763.4499",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.17763.4499",
            "product": {
              "name": "Windows Server 2019 (Server Core installation) 10.0.17763.4499",
              "product_id": "11572"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2019 (Server Core installation)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.20348.1787",
            "product": {
              "name": "Windows Server 2022 \u003c10.0.20348.1787",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.20348.1787",
            "product": {
              "name": "Windows Server 2022 10.0.20348.1787",
              "product_id": "11923"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2022"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.20348.1787",
            "product": {
              "name": "Windows Server 2022 (Server Core installation) \u003c10.0.20348.1787",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.20348.1787",
            "product": {
              "name": "Windows Server 2022 (Server Core installation) 10.0.20348.1787",
              "product_id": "11924"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2022 (Server Core installation)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.14393.5989",
            "product": {
              "name": "Windows Server 2016 \u003c10.0.14393.5989",
              "product_id": "6"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.14393.5989",
            "product": {
              "name": "Windows Server 2016 10.0.14393.5989",
              "product_id": "10816"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2016"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c10.0.14393.5989",
            "product": {
              "name": "Windows Server 2016 (Server Core installation) \u003c10.0.14393.5989",
              "product_id": "5"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.14393.5989",
            "product": {
              "name": "Windows Server 2016 (Server Core installation) 10.0.14393.5989",
              "product_id": "10855"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2016 (Server Core installation)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c6.3.9600.21013",
            "product": {
              "name": "Windows Server 2012 R2 \u003c6.3.9600.21013",
              "product_id": "8"
            }
          },
          {
            "category": "product_version",
            "name": "6.3.9600.21013",
            "product": {
              "name": "Windows Server 2012 R2 6.3.9600.21013",
              "product_id": "10483"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2012 R2"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c6.3.9600.21013",
            "product": {
              "name": "Windows Server 2012 R2 (Server Core installation) \u003c6.3.9600.21013",
              "product_id": "7"
            }
          },
          {
            "category": "product_version",
            "name": "6.3.9600.21013",
            "product": {
              "name": "Windows Server 2012 R2 (Server Core installation) 6.3.9600.21013",
              "product_id": "10543"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2012 R2 (Server Core installation)"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-32021",
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker who successfully exploited this vulnerability could execute RPC procedures that are restricted to privileged accounts, bypassing the access check for the RPC procedures.",
          "title": "What kind of security feature could be bypassed by successfully exploiting this vulnerability?"
        },
        {
          "category": "faq",
          "text": "To exploit this vulnerability, an attacker could execute a specially crafted malicious script which executes an RPC call to a Windows SMB Witness Service.",
          "title": "How could an attacker exploit the vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "10483",
          "10543",
          "10816",
          "10855",
          "11571",
          "11572",
          "11923",
          "11924"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-32021 Windows SMB Witness Service Security Feature Bypass Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-32021"
        },
        {
          "category": "self",
          "summary": "CVE-2023-32021 Windows SMB Witness Service Security Feature Bypass Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-32021"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-06-13T07:00:00.000Z",
          "details": "10.0.17763.4499:Security Update:https://support.microsoft.com/help/5027222",
          "product_ids": [
            "4",
            "3"
          ],
          "url": "https://support.microsoft.com/help/5027222"
        },
        {
          "category": "vendor_fix",
          "date": "2023-06-13T07:00:00.000Z",
          "details": "10.0.20348.1787:Security Update:https://support.microsoft.com/help/5027225",
          "product_ids": [
            "2",
            "1"
          ],
          "url": "https://support.microsoft.com/help/5027225"
        },
        {
          "category": "vendor_fix",
          "date": "2023-06-13T07:00:00.000Z",
          "details": "10.0.20348.1784:Security Hotpatch Update:https://support.microsoft.com/help/5027319",
          "product_ids": [
            "2",
            "1"
          ],
          "url": "https://support.microsoft.com/help/5027319"
        },
        {
          "category": "vendor_fix",
          "date": "2023-06-13T07:00:00.000Z",
          "details": "10.0.14393.5989:Security Update:https://support.microsoft.com/help/5027219",
          "product_ids": [
            "6",
            "5"
          ],
          "url": "https://support.microsoft.com/help/5027219"
        },
        {
          "category": "vendor_fix",
          "date": "2023-06-13T07:00:00.000Z",
          "details": "6.3.9600.21013:Monthly Rollup:https://support.microsoft.com/help/5027271",
          "product_ids": [
            "8",
            "7"
          ],
          "url": "https://support.microsoft.com/help/5027271"
        },
        {
          "category": "vendor_fix",
          "date": "2023-06-13T07:00:00.000Z",
          "details": "6.3.9600.21013:Security Only:https://support.microsoft.com/help/5027282",
          "product_ids": [
            "8",
            "7"
          ],
          "url": "https://support.microsoft.com/help/5027282"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.2,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Security Feature Bypass"
        },
        {
          "category": "exploit_status",
          "details": "Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Windows SMB Witness Service Security Feature Bypass Vulnerability"
    }
  ]
}