{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Matt Bierner with Microsoft"
        ]
      }
    ],
    "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-2023-21779 Visual Studio Code Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21779"
      },
      {
        "category": "self",
        "summary": "CVE-2023-21779 Visual Studio Code Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-21779.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": "Visual Studio Code Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2023-05-09T07:00:00.000Z",
      "generator": {
        "date": "2025-01-01T00:35:27.523Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-21779",
      "initial_release_date": "2023-01-10T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-01-10T08:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2023-01-11T08:00:00.000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Corrected CVE title. This is an informational change only."
        },
        {
          "date": "2023-05-09T07:00:00.000Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Updated one or more CVSS scores for the affected products. This is an informational change only."
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c1.74.3",
            "product": {
              "name": "Visual Studio Code \u003c1.74.3",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "1.74.3",
            "product": {
              "name": "Visual Studio Code 1.74.3",
              "product_id": "11622"
            }
          }
        ],
        "category": "product_name",
        "name": "Visual Studio Code"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-21779",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally.\nFor example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.",
          "title": "According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?"
        },
        {
          "category": "faq",
          "text": "The user would have be enticed to open a malicious file in vscode. Users should never open anything that they do not know or trust to be safe.",
          "title": "According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?"
        }
      ],
      "product_status": {
        "fixed": [
          "11622"
        ],
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-21779 Visual Studio Code Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21779"
        },
        {
          "category": "self",
          "summary": "CVE-2023-21779 Visual Studio Code Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21779"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-01-10T08:00:00.000Z",
          "details": "1.74.3:Security Update:https://code.visualstudio.com/updates/v1_74",
          "product_ids": [
            "1"
          ],
          "url": "https://code.visualstudio.com/updates/v1_74"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.8,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/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": "Remote Code Execution"
        },
        {
          "category": "exploit_status",
          "details": "Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Visual Studio Code Remote Code Execution Vulnerability"
    }
  ]
}