{
  "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-2023-36780 Skype for Business Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36780"
      },
      {
        "category": "self",
        "summary": "CVE-2023-36780 Skype for Business Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2023/msrc_cve-2023-36780.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": "Skype for Business Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2023-10-10T07:00:00.000Z",
      "generator": {
        "date": "2025-04-14T22:45:46.695Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-36780",
      "initial_release_date": "2023-10-10T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-10-10T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c7.0.246.530",
            "product": {
              "name": "Skype for Business Server 2019 CU7 \u003c7.0.246.530",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "7.0.246.530",
            "product": {
              "name": "Skype for Business Server 2019 CU7 7.0.246.530",
              "product_id": "12223"
            }
          }
        ],
        "category": "product_name",
        "name": "Skype for Business Server 2019 CU7"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c6.0.9319.869",
            "product": {
              "name": "Skype for Business Server 2015 CU13 \u003c6.0.9319.869",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "6.0.9319.869",
            "product": {
              "name": "Skype for Business Server 2015 CU13 6.0.9319.869",
              "product_id": "12224"
            }
          }
        ],
        "category": "product_name",
        "name": "Skype for Business Server 2015 CU13"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-36780",
      "cwe": {
        "id": "CWE-426",
        "name": "Untrusted Search Path"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "To exploit this input validation vulnerability, an attacker would need access to an authenticated user account holding CsHelpDesk administrative privileges, hosting a malicious C++/CLI assembly in the shared directory.\nThe attacker would also need to create a remote PowerShell session in order to run the insecure Get-Help cmdlet at server context.\nThis exploit would allow the attacker to gain remote code execution on the Skype for Business Server backend.",
          "title": "How could an attacker exploit this vulnerability?"
        },
        {
          "category": "faq",
          "text": "Successful exploitation of this vulnerability requires the attacker or targeted user to be granted an administrative role in the Skype for Business Control Panel.\nTo help retain security and role-based access control integrity, add users to the groups that define what role the user performs in management of the Skype for Business Server deployment.",
          "title": "According to the CVSS metric, privileges required is high (PR:H). What does that mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "The vulnerability exists in PowerShell when exposed through Microsoft Exchange or Skype. This occurs when someone creates a custom endpoint, called restricted remoting, that exposes the \u0026quot;GetHelp\u0026quot; command without a proxy that validates the input.",
          "title": "If I\u2019m running PowerShell, how am I exposed to this vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "12223",
          "12224"
        ],
        "known_affected": [
          "1",
          "2"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-36780 Skype for Business Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36780"
        },
        {
          "category": "self",
          "summary": "CVE-2023-36780 Skype for Business Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2023/msrc_cve-2023-36780.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-10-10T07:00:00.000Z",
          "details": "7.0.246.530:Security Update:https://support.microsoft.com/help/4470124",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/4470124"
        },
        {
          "category": "vendor_fix",
          "date": "2023-10-10T07:00:00.000Z",
          "details": "6.0.9319.869:Security Update:https://support.microsoft.com/help/3061064",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/3061064"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.3,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Remote Code Execution"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation More Likely"
        }
      ],
      "title": "Skype for Business Remote Code Execution Vulnerability"
    }
  ]
}