{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the login dialog box of SIMATIC WinCC could allow a local attacker to cause a denial of service condition in the runtime of the SCADA system.\n\nSiemens has released new versions for the affected products and recommends to update to the latest versions.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
      },
      {
        "category": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-730482: Denial of Service Vulnerability in SIMATIC WinCC - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-730482.html"
      },
      {
        "category": "self",
        "summary": "SSA-730482: Denial of Service Vulnerability in SIMATIC WinCC - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-730482.json"
      }
    ],
    "title": "SSA-730482: Denial of Service Vulnerability in SIMATIC WinCC",
    "tracking": {
      "current_release_date": "2025-01-14T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-730482",
      "initial_release_date": "2024-04-09T00:00:00Z",
      "revision_history": [
        {
          "date": "2024-04-09T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2024-07-09T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added fix for SIMATIC WinCC V8.0 and SIMATIC WinCC Runtime Professional V18"
        },
        {
          "date": "2025-01-14T00:00:00Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added fix for SIMATIC WinCC Runtime Professional V17"
        }
      ],
      "status": "interim",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V9.1 SP2 UC04",
                "product": {
                  "name": "SIMATIC PCS 7 V9.1",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS 7 V9.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V17 Update 8",
                "product": {
                  "name": "SIMATIC WinCC Runtime Professional V17",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC Runtime Professional V17"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V18 Update 4",
                "product": {
                  "name": "SIMATIC WinCC Runtime Professional V18",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC Runtime Professional V18"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V19 Update 1",
                "product": {
                  "name": "SIMATIC WinCC Runtime Professional V19",
                  "product_id": "4"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC Runtime Professional V19"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V7.5 SP2 Update 16",
                "product": {
                  "name": "SIMATIC WinCC V7.5",
                  "product_id": "5"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V7.5"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V8.0 Update 5",
                "product": {
                  "name": "SIMATIC WinCC V8.0",
                  "product_id": "6"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V8.0"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-50821",
      "cwe": {
        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected products do not properly validate the input provided in the login dialog box. An attacker could leverage this vulnerability to cause a persistent denial of service condition.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Activate SIMATIC Logon in the User Administrator of the SIMATIC PCS 7 Operator Stations",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V17 Update 8 or later version",
          "product_ids": [
            "2"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V18 Update 4 or later version",
          "product_ids": [
            "3"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V19 Update 1 or later version",
          "product_ids": [
            "4"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.5 SP2 Update 16 or later version",
          "product_ids": [
            "5"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109793460/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.0 Update 5 or later version",
          "product_ids": [
            "6"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.1 SP2 UC04 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109812242/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6"
          ]
        }
      ],
      "title": "CVE-2023-50821"
    }
  ]
}