{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "\u003ca href=\"https://linkedin.com/in/valsamaras\"\u003eDimitrios Valsamaras\u003c/a\u003e with \u003ca href=\"https://microsoft.com/\"\u003eMicrosoft\u003c/a\u003e"
        ]
      }
    ],
    "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-2023-21721 Microsoft OneNote Elevation of Privilege Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21721"
      },
      {
        "category": "self",
        "summary": "CVE-2023-21721 Microsoft OneNote Elevation of Privilege Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-21721.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 OneNote Elevation of Privilege Vulnerability",
    "tracking": {
      "current_release_date": "2023-02-14T08:00:00.000Z",
      "generator": {
        "date": "2025-01-01T00:40:39.984Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-21721",
      "initial_release_date": "2023-02-14T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-02-14T08:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2023-02-14T08:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Updated Impact in the Security Updates table, CVE Title, and FAQs. This is an informational change only."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.16026.20158",
            "product": {
              "name": "Microsoft OneNote for Android \u003c16.0.16026.20158",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.16026.20158",
            "product": {
              "name": "Microsoft OneNote for Android 16.0.16026.20158",
              "product_id": "12153"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft OneNote for Android"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-21721",
      "cwe": {
        "id": "CWE-287",
        "name": "Improper Authentication"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "Any authenticated user could trigger this vulnerability. It does not require admin or other elevated privileges.",
          "title": "According to the CVSS metric, privileges required is low (PR:L).  What does that mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "An authenticated attacker could impersonate another user to perform actions.",
          "title": "According to the CVSS metric, successful exploitation of this vulnerability could lead to total loss of integrity (I:H)? What does that mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "Please reference How to update the Play Store \u0026amp; apps on Android - Google Play Help for guidance.",
          "title": "How do I get the update for OneNote for Android?"
        }
      ],
      "product_status": {
        "fixed": [
          "12153"
        ],
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-21721 Microsoft OneNote Elevation of Privilege Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21721"
        },
        {
          "category": "self",
          "summary": "CVE-2023-21721 Microsoft OneNote Elevation of Privilege Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21721"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "16.0.16026.20158:Security Update:https://play.google.com/store/apps/details?id=com.microsoft.office.onenote",
          "product_ids": [
            "1"
          ],
          "url": "https://play.google.com/store/apps/details?id=com.microsoft.office.onenote"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 5.7,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Elevation of Privilege"
        },
        {
          "category": "exploit_status",
          "details": "Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Microsoft OneNote Elevation of Privilege Vulnerability"
    }
  ]
}