{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Stav Nir"
        ]
      }
    ],
    "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-2023-36021 Microsoft On-Prem Data Gateway Security Feature Bypass Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36021"
      },
      {
        "category": "self",
        "summary": "CVE-2023-36021 Microsoft On-Prem Data Gateway Security Feature Bypass Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2023/msrc_cve-2023-36021.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": "Microsoft On-Prem Data Gateway Security Feature Bypass Vulnerability",
    "tracking": {
      "current_release_date": "2023-11-14T08:00:00.000Z",
      "generator": {
        "date": "2025-04-29T23:34:11.329Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-36021",
      "initial_release_date": "2023-11-14T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-11-14T08:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c3000.198.9",
            "product": {
              "name": "On-Prem Data Gateway \u003c3000.198.9",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "3000.198.9",
            "product": {
              "name": "On-Prem Data Gateway 3000.198.9",
              "product_id": "12258"
            }
          }
        ],
        "category": "product_name",
        "name": "On-Prem Data Gateway"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-36021",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker who successfully exploited this vulnerability could bypass certificate validation mechanisms and provide arbitrary certificates that do not have proper signatures.",
          "title": "What kind of security feature could be bypassed by successfully exploiting this vulnerability?"
        },
        {
          "category": "faq",
          "text": "A security feature bypass vulnerability exists when On-Prem Data Gateway does not perform certificate validation logic correctly and impacts the reliability of the backend infrastructure\u0027s workflow. An authenticated attacker with normal user privileges, via network connection or web request, could provide the workflow with an arbitrary untrusted certificate, with an arbitrary common name, which does not have proper signature.",
          "title": "According to the CVSS metric, the attack vector is network (AV:N), privilege required is low (PR:L) and user interaction is required (UI:R). How could an attacker exploit this security feature bypass vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "12258"
        ],
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-36021 Microsoft On-Prem Data Gateway Security Feature Bypass Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36021"
        },
        {
          "category": "self",
          "summary": "CVE-2023-36021 Microsoft On-Prem Data Gateway Security Feature Bypass Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2023/msrc_cve-2023-36021.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-11-14T08:00:00.000Z",
          "details": "3000.198.9:Security Update:https://learn.microsoft.com/en-us/data-integration/gateway/service-gateway-update",
          "product_ids": [
            "1"
          ],
          "url": "https://learn.microsoft.com/en-us/data-integration/gateway/service-gateway-update"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.0,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Security Feature Bypass"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Microsoft On-Prem Data Gateway Security Feature Bypass Vulnerability"
    }
  ]
}