{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens ProductCERT",
        "summary": "reporting this vulnerability to CISA."
      },
      {
        "names": [
          "Dr. Ang Cui",
          "Joseph Pantoga"
        ],
        "organization": "Red Balloon Security",
        "summary": "for coordinating disclosure"
      },
      {
        "names": [
          "Artem Zinenko"
        ],
        "organization": "Kaspersky",
        "summary": "for pointing out that SIPLUS should also be mentioned"
      }
    ],
    "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",
    "notes": [
      {
        "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: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.",
        "title": "General Recommendations"
      },
      {
        "category": "general",
        "text": "Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.",
        "title": "Terms of Use"
      },
      {
        "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": "other",
        "text": "This CISA CSAF advisory was converted from a Siemens ProductCERT\u0027s advisory.",
        "title": "Advisory Conversion Disclaimer"
      },
      {
        "category": "other",
        "text": "Multiple",
        "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 exploitation risk of this vulnerability.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-181018: Heap Overflow Vulnerability in SCALANCE X switches, RUGGEDCOM Win, RFID\n        181EIP, and SIMATIC RF182C - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-181018.html"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-18-165-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2018/icsa-18-165-01.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-18-165-01 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-18-165-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
        "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://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Siemens SCALANCE X Switches, RUGGEDCOM WiMAX, RFID 181-EIP, and SIMATIC RF182C (Update D)",
    "tracking": {
      "current_release_date": "2020-12-08T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-18-165-01",
      "initial_release_date": "2018-06-12T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2018-06-12T00:00:00.000000Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2018-12-11T00:00:00.000000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added solution for RUGGEDCOM Win"
        },
        {
          "date": "2018-12-13T00:00:00.000000Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Update for RUGGEDCOM Win not available, see mitigations"
        },
        {
          "date": "2019-01-08T00:00:00.000000Z",
          "legacy_version": "1.3",
          "number": "4",
          "summary": "Added solution for RUGGEDCOM Win"
        },
        {
          "date": "2019-06-11T00:00:00.000000Z",
          "legacy_version": "1.4",
          "number": "5",
          "summary": "Clarified product names. Added solution for SCALANCE X200RNA"
        },
        {
          "date": "2020-12-08T00:00:00.000000Z",
          "legacy_version": "1.5",
          "number": "6",
          "summary": "Informed about successor products for SIMATIC RF182C and RFID 181EIP"
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Siemens RFID 181EIP: All versions",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "RFID 181EIP"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "V4.4|V4.5|V5.0|V5.1",
                "product": {
                  "name": "Siemens RUGGEDCOM Win: V4.4, V4.5, V5.0, V5.1",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM Win"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV5.2.3",
                "product": {
                  "name": "Siemens SCALANCE X-200 switch family (incl.\u0027SIPLUS NET variants): All versions \u003c V5.2.3",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200 switch family (incl.\u0027SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV5.4.1",
                "product": {
                  "name": "Siemens SCALANCE X-200IRT switch family (incl.\u0027SIPLUS NET variants): All versions \u003c V5.4.1",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200IRT switch family (incl.\u0027SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV3.2.6",
                "product": {
                  "name": "Siemens SCALANCE X-200RNA switch family: All versions \u003c V3.2.6",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200RNA switch family"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV4.1.3",
                "product": {
                  "name": "Siemens SCALANCE X-300 switch family (incl.\u0027SIPLUS NET variants): All versions \u003c V4.1.3",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-300 switch family (incl.\u0027SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV4.1.3",
                "product": {
                  "name": "Siemens SCALANCE X408: All versions \u003c V4.1.3",
                  "product_id": "CSAFPID-0007"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X408"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Siemens SCALANCE X414: All versions",
                  "product_id": "CSAFPID-0008"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X414"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Siemens SIMATIC RF182C: All versions",
                  "product_id": "CSAFPID-0009"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC RF182C"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-4833",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Unprivileged remote attackers located in the same local network segment (OSI Layer 2) could gain remote code execution on the affected products by sending a specially crafted DHCP response to a client\u0027s DHCP request.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Use static IP addresses instead of DHCP",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        },
        {
          "category": "mitigation",
          "details": "Apply cell protection concept: https://www.siemens.com/cert/operational-guidelines-industrial-security",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        },
        {
          "category": "mitigation",
          "details": "Apply Defense-in-Depth: https://www.siemens.com/cert/operational-guidelines-industrial-security",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        },
        {
          "category": "mitigation",
          "details": "For SIMATIC RF182C and RFID 181EIP: migrate to a successor product within the SIMATIC RF18xC/CI family, V1.3 or later version. For details refer to the phase-out announcement.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.2 https://support.industry.siemens.com/cs/ww/en/view/109762466 ",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.2.3 https://support.industry.siemens.com/cs/ww/en/view/109758142",
          "product_ids": [
            "CSAFPID-0003"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.4.1 https://support.industry.siemens.com/cs/ww/en/view/109758144",
          "product_ids": [
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.2.6 https://support.industry.siemens.com/cs/ww/en/view/109767359",
          "product_ids": [
            "CSAFPID-0005"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.1.3 https://support.industry.siemens.com/cs/document/109773547",
          "product_ids": [
            "CSAFPID-0006",
            "CSAFPID-0007"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:T/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        }
      ],
      "title": "CVE-2018-4833"
    }
  ]
}