{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "<a href=\"https://twitter.com/4zure9\">Azure Yang</a> with <a href=\"http://www.cyberkl.com/\">Kunlun Lab</a>"
        ]
      }
    ],
    "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-2023-21803 Windows iSCSI Discovery Service Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21803"
      },
      {
        "category": "self",
        "summary": "CVE-2023-21803 Windows iSCSI Discovery Service Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-21803.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": "Windows iSCSI Discovery Service Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2023-02-14T08:00:00.000Z",
      "generator": {
        "date": "2025-01-01T00:40:39.937Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-21803",
      "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": "<10.0.17763.4010",
            "product": {
              "name": "Windows 10 Version 1809 for 32-bit Systems <10.0.17763.4010",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.17763.4010",
            "product": {
              "name": "Windows 10 Version 1809 for 32-bit Systems 10.0.17763.4010",
              "product_id": "11568"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 10 Version 1809 for 32-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.19042.2604",
            "product": {
              "name": "Windows 10 Version 20H2 for 32-bit Systems <10.0.19042.2604",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.19042.2604",
            "product": {
              "name": "Windows 10 Version 20H2 for 32-bit Systems 10.0.19042.2604",
              "product_id": "11801"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 10 Version 20H2 for 32-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.19044.2604",
            "product": {
              "name": "Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.2604",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.19044.2604",
            "product": {
              "name": "Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.2604",
              "product_id": "11929"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 10 Version 21H2 for 32-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.19045.2604",
            "product": {
              "name": "Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.2604",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.19045.2604",
            "product": {
              "name": "Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.2604",
              "product_id": "12099"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 10 Version 22H2 for 32-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.10240.19747",
            "product": {
              "name": "Windows 10 for 32-bit Systems <10.0.10240.19747",
              "product_id": "6"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.10240.19747",
            "product": {
              "name": "Windows 10 for 32-bit Systems 10.0.10240.19747",
              "product_id": "10729"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 10 for 32-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.14393.5717",
            "product": {
              "name": "Windows 10 Version 1607 for 32-bit Systems <10.0.14393.5717",
              "product_id": "5"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.14393.5717",
            "product": {
              "name": "Windows 10 Version 1607 for 32-bit Systems 10.0.14393.5717",
              "product_id": "10852"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 10 Version 1607 for 32-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<6.0.6003.21915",
            "product": {
              "name": "Windows Server 2008 for 32-bit Systems Service Pack 2 <6.0.6003.21915",
              "product_id": "8"
            }
          },
          {
            "category": "product_version",
            "name": "6.0.6003.21915",
            "product": {
              "name": "Windows Server 2008 for 32-bit Systems Service Pack 2 6.0.6003.21915",
              "product_id": "9312"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2008 for 32-bit Systems Service Pack 2"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<6.0.6003.21915",
            "product": {
              "name": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) <6.0.6003.21915",
              "product_id": "7"
            }
          },
          {
            "category": "product_version",
            "name": "6.0.6003.21915",
            "product": {
              "name": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 6.0.6003.21915",
              "product_id": "10287"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-21803",
      "cwe": {
        "id": "CWE-190",
        "name": "Integer Overflow or Wraparound"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker could exploit the vulnerability by sending a specially crafted malicious DHCP discovery request to the iSCSI Discovery Service on 32-bit machines. An attacker who successfully exploited the vulnerability could then gain the ability to execute code on the target system.",
          "title": "How could an attacker exploit the vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "9312",
          "10287",
          "10729",
          "10852",
          "11568",
          "11801",
          "11929",
          "12099"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-21803 Windows iSCSI Discovery Service Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21803"
        },
        {
          "category": "self",
          "summary": "CVE-2023-21803 Windows iSCSI Discovery Service Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21803"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "10.0.17763.4010:Security Update:https://support.microsoft.com/help/5022840",
          "product_ids": [
            "4"
          ],
          "url": "https://support.microsoft.com/help/5022840"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "10.0.19042.2604:Security Update:https://support.microsoft.com/help/5022834",
          "product_ids": [
            "3"
          ],
          "url": "https://support.microsoft.com/help/5022834"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "10.0.19044.2604:Security Update:https://support.microsoft.com/help/5022834",
          "product_ids": [
            "2"
          ],
          "url": "https://support.microsoft.com/help/5022834"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "10.0.19045.2604:Security Update:https://support.microsoft.com/help/5022834",
          "product_ids": [
            "1"
          ],
          "url": "https://support.microsoft.com/help/5022834"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "10.0.10240.19747:Security Update:https://support.microsoft.com/help/5022858",
          "product_ids": [
            "6"
          ],
          "url": "https://support.microsoft.com/help/5022858"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "10.0.14393.5717:Security Update:https://support.microsoft.com/help/5022838",
          "product_ids": [
            "5"
          ],
          "url": "https://support.microsoft.com/help/5022838"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "6.0.6003.21915:Monthly Rollup:https://support.microsoft.com/help/5022890",
          "product_ids": [
            "8",
            "7"
          ],
          "url": "https://support.microsoft.com/help/5022890"
        },
        {
          "category": "vendor_fix",
          "date": "2023-02-14T08:00:00.000Z",
          "details": "6.0.6003.21915:Security Only:https://support.microsoft.com/help/5022893",
          "product_ids": [
            "8",
            "7"
          ],
          "url": "https://support.microsoft.com/help/5022893"
        }
      ],
      "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",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Remote Code Execution"
        },
        {
          "category": "exploit_status",
          "details": "Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Windows iSCSI Discovery Service Remote Code Execution Vulnerability"
    }
  ]
}