{
  "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-2023-21717 Microsoft SharePoint Server Elevation of Privilege Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21717"
      },
      {
        "category": "self",
        "summary": "CVE-2023-21717 Microsoft SharePoint Server Elevation of Privilege Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-21717.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": "2023-02-14T08:00:00.000Z",
      "generator": {
        "date": "2025-01-01T00:40:39.979Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-21717",
      "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."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.5383.1000",
            "product": {
              "name": "Microsoft SharePoint Enterprise Server 2016 \u003c16.0.5383.1000",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.5383.1000",
            "product": {
              "name": "Microsoft SharePoint Enterprise Server 2016 16.0.5383.1000",
              "product_id": "10950"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Enterprise Server 2016"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.0.5529.1000",
            "product": {
              "name": "Microsoft SharePoint Enterprise Server 2013 Service Pack 1 \u003c15.0.5529.1000",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "15.0.5529.1000",
            "product": {
              "name": "Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.5529.1000",
              "product_id": "11099"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Enterprise Server 2013 Service Pack 1"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.10395.20001",
            "product": {
              "name": "Microsoft SharePoint Server 2019 \u003c16.0.10395.20001",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.10395.20001",
            "product": {
              "name": "Microsoft SharePoint Server 2019 16.0.10395.20001",
              "product_id": "11585"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Server 2019"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.0.15601.20478",
            "product": {
              "name": "Microsoft SharePoint Server Subscription Edition \u003c16.0.15601.20478",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "16.0.15601.20478",
            "product": {
              "name": "Microsoft SharePoint Server Subscription Edition 16.0.15601.20478",
              "product_id": "11961"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Server Subscription Edition"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c15.0.5529.1000",
            "product": {
              "name": "Microsoft SharePoint Foundation 2013 Service Pack 1 \u003c15.0.5529.1000",
              "product_id": "5"
            }
          },
          {
            "category": "product_version",
            "name": "15.0.5529.1000",
            "product": {
              "name": "Microsoft SharePoint Foundation 2013 Service Pack 1 15.0.5529.1000",
              "product_id": "10612"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft SharePoint Foundation 2013 Service Pack 1"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-21717",
      "cwe": {
        "id": "CWE-284",
        "name": "Improper Access Control"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "The attacker must be authenticated to the target site, with the permission to use Manage Lists within SharePoint.",
          "title": "According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "In a network-based attack, an authenticated attacker with Manage List permissions could execute code remotely on the SharePoint Server.",
          "title": "How could an attacker exploit the vulnerability?"
        },
        {
          "category": "faq",
          "text": "No. Customers running SharePoint Enterprise Server 2013 Service Pack 1 should install either of the following:\nCumulative update (ubersrv13). Note that this update also includes the *srvloc2013 update, Both of the security updates (sts2013 AND *loc2013), which are the same updates as for Foundation Server 2013\nPlease note that this is a clarification of the existing servicing model for SharePoint Server 2013 and applies for all previous updates.",
          "title": "I am running SharePoint Enterprise Server 2013 Service Pack 1. Do I need to install all the updates that are listed for SharePoint Enterprise Server 2013 Service Pack 1?"
        },
        {
          "category": "faq",
          "text": "Yes, customers running SharePoint Foundation 2013 Service Pack 1 should install both of the security updates. The updates can be installed in any order.",
          "title": "I am running SharePoint Foundation 2013 Service Pack 1. Do I need to install all the updates that are listed for SharePoint Foundation 2013 Service Pack 1 ?"
        }
      ],
      "product_status": {
        "fixed": [
          "10612",
          "10950",
          "11099",
          "11585",
          "11961"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-21717 Microsoft SharePoint Server Elevation of Privilege Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21717"
        },
        {
          "category": "self",
          "summary": "CVE-2023-21717 Microsoft SharePoint Server Elevation of Privilege Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21717"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "16.0.5383.1000:Security Update:https://support.microsoft.com/help/5002350",
          "product_ids": [
            "4"
          ],
          "url": "https://support.microsoft.com/help/5002350"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "16.0.5383.1000:Security Update:https://support.microsoft.com/help/5002325",
          "product_ids": [
            "4"
          ],
          "url": "https://support.microsoft.com/help/5002325"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "15.0.5529.1000:Cumulative Update:https://support.microsoft.com/help/5002346",
          "product_ids": [
            "3"
          ],
          "url": "https://support.microsoft.com/help/5002346"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "15.0.5529.1000:Security Update:https://support.microsoft.com/help/5002347",
          "product_ids": [
            "3",
            "5"
          ],
          "url": "https://support.microsoft.com/help/5002347"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "15.0.5529.1000:Security Update:https://support.microsoft.com/help/5002312",
          "product_ids": [
            "3",
            "5"
          ],
          "url": "https://support.microsoft.com/help/5002312"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "16.0.10395.20001:Security Update:https://support.microsoft.com/help/5002342",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5002342"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "16.0.10395.20001:Security Update:https://support.microsoft.com/help/5002330",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5002330"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "16.0.15601.20478:Security Update:https://support.microsoft.com/help/5002353",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/5002353"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.7,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Elevation of Privilege"
        },
        {
          "category": "exploit_status",
          "details": "Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Microsoft SharePoint Server Elevation of Privilege Vulnerability"
    }
  ]
}