{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens",
        "summary": "reporting this vulnerability to CISA"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov",
        "title": "CISA Disclaimer"
      },
      {
        "category": "legal_disclaimer",
        "text": "All information products included in https://us-cert.cisa.gov/ics are provided \"as is\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.",
        "title": "Legal Notice"
      },
      {
        "category": "summary",
        "text": "Successful exploitation of this vulnerability could allow an attacker to perform administrative actions.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Critical Manufacturing",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Germany",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.\nCISA also provides a section for control systems security recommended practices on the ICS webpage onus-cert.cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.\nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      },
      {
        "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"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SSA-951513: Clickjacking Vulnerability in SCALANCE S, SCALANCE X-300, X-200IRT, X-200RNA and X-200 Switch Families - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-951513.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-042-07 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-042-07.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-042-07 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-042-07"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ncas/tips/ST04-014"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B"
      },
      {
        "category": "external",
        "summary": "SSA-951513: Clickjacking Vulnerability in SCALANCE S, SCALANCE X-300, X-200IRT, X-200RNA and X-200 Switch Families - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-951513.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-951513: Clickjacking Vulnerability in SCALANCE S, SCALANCE X-300, X-200IRT, X-200RNA and X-200 Switch Families - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-951513.txt"
      }
    ],
    "title": "Siemens SCALANCE X Switches (Update B)",
    "tracking": {
      "current_release_date": "2021-04-13T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-20-042-07",
      "initial_release_date": "2020-02-11T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2020-02-11T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-20-042-07 Siemens SCALANCE X Switches"
        },
        {
          "date": "2021-02-09T00:00:00.000000Z",
          "legacy_version": "A",
          "number": "2",
          "summary": "ICSA-20-042-07 Siemens SCALANCE X Switches (Update A)"
        },
        {
          "date": "2021-04-13T00:00:00.000000Z",
          "legacy_version": "B",
          "number": "3",
          "summary": "ICSA-20-042-07 Siemens SCALANCE X Switches (Update B)"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V4.1",
                "product": {
                  "name": "SCALANCE S602",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE S602"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V4.1",
                "product": {
                  "name": "SCALANCE S612",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE S612"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V4.1",
                "product": {
                  "name": "SCALANCE S623",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE S623"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V4.1",
                "product": {
                  "name": "SCALANCE S627-2M",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE S627-2M"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c 5.2.4",
                "product": {
                  "name": "SCALANCE X-200 switch family (incl. SIPLUS NET variants)",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200 switch family (incl. SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.5.0",
                "product": {
                  "name": "SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200IRT switch family (incl. SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V3.2.7",
                "product": {
                  "name": "SCALANCE X-200RNA switch family",
                  "product_id": "CSAFPID-0007"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200RNA switch family"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c 4.1.3",
                "product": {
                  "name": "SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants)",
                  "product_id": "CSAFPID-0008"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-13924",
      "cwe": {
        "id": "CWE-693",
        "name": "Protection Mechanism Failure"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The device does not send the X-Frame-Option Header in the administrative web\ninterface, which makes it vulnerable to Clickjacking attacks. \n\nThe security vulnerability could be exploited by an attacker that is able\nto trick an administrative user with a valid session on the target device into\nclicking on a website controlled by the attacker. The vulnerability could\nallow an attacker to perform administrative actions via the web interface.\nCVE-2019-13924 has been assigned to this vulnerability. A CVSS v3 base score of 4.2 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-13924"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Only access links from trusted sources in the browser you use to configure the SCALANCE X switches.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008"
          ]
        },
        {
          "category": "mitigation",
          "details": "Upgrade hardware to successor product from SCALANCE SC-600 family (\nhttps://support.industry.siemens.com/cs/document/109756957) and apply patches when available, or follow recommendations from section Workarounds and Mitigations",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.1.3 or later version",
          "product_ids": [
            "CSAFPID-0008"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109773547/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.2.4 or later version",
          "product_ids": [
            "CSAFPID-0005"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109767965/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.5.0 or later version",
          "product_ids": [
            "CSAFPID-0006"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.1 or later version\nUpdate is only available via Siemens Support contact",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.2.7 or later version",
          "product_ids": [
            "CSAFPID-0007"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109814809/"
        },
        {
          "category": "mitigation",
          "details": "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: \nhttps://www.siemens.com/industrialsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:U/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008"
          ]
        }
      ],
      "title": "CVE-2019-13924"
    }
  ]
}