{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "\u003ca href=\"https://twitter.com/testanull\"\u003eJang (Nguy\u1ec5n Ti\u1ebfn Giang)\u003c/a\u003e of StarLabs SG working with \u003ca href=\"https://www.zerodayinitiative.com/\"\u003eTrend Micro Zero Day Initiative\u003c/a\u003e"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Critical"
    },
    "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-2023-29357 Microsoft SharePoint Server Elevation of Privilege Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357"
      },
      {
        "category": "self",
        "summary": "CVE-2023-29357 Microsoft SharePoint Server Elevation of Privilege Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-29357.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 SharePoint Server Elevation of Privilege Vulnerability",
    "tracking": {
      "current_release_date": "2023-06-19T07:00:00.000Z",
      "generator": {
        "date": "2025-01-01T01:43:29.867Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-29357",
      "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."
        },
        {
          "date": "2023-06-19T07:00:00.000Z",
          "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": "\u003c16.0.10399.20005",
            "product": {
              "name": "Microsoft SharePoint Server 2019 \u003c16.0.10399.20005",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.10399.20005",
            "product": {
              "name": "Microsoft SharePoint Server 2019 16.0.10399.20005",
              "product_id": "11585"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Server 2019"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-29357",
      "cwe": {
        "id": "CWE-303",
        "name": "Incorrect Implementation of Authentication Algorithm"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker who has gained access to spoofed JWT authentication tokens can use them to execute a network attack which bypasses authentication and allows them to gain access to the privileges of an authenticated user.\nThe attacker needs no privileges nor does the user need to perform any action.",
          "title": "According to the CVSS metric, the attack vector is network (AV:N), privilege required is none (PR:N), and user interaction is none (UI:N). What is the target used in the context of the elevation of privilege?"
        },
        {
          "category": "faq",
          "text": "An attacker who successfully exploited this vulnerability could gain administrator privileges.",
          "title": "What privileges could be gained by an attacker who successfully exploited the vulnerability?"
        },
        {
          "category": "faq",
          "text": "Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.",
          "title": "I am running SharePoint Server 2019 and there are multiple updates available. Do I need to install all the updates listed in the Security Updates table for these versions?"
        }
      ],
      "product_status": {
        "fixed": [
          "11585"
        ],
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-29357 Microsoft SharePoint Server Elevation of Privilege Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357"
        },
        {
          "category": "self",
          "summary": "CVE-2023-29357 Microsoft SharePoint Server Elevation of Privilege Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-06-13T07:00:00.000Z",
          "details": "16.0.10399.20005:Security Update:https://support.microsoft.com/help/5002402",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/5002402"
        },
        {
          "category": "vendor_fix",
          "date": "2023-06-13T07:00:00.000Z",
          "details": "16.0.10399.20005:Security Update:https://support.microsoft.com/help/5002403",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/5002403"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 8.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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": "Exploited:No;Latest Software Release:Exploitation More Likely"
        }
      ],
      "title": "Microsoft SharePoint Server Elevation of Privilege Vulnerability"
    }
  ]
}