icsa-19-162-04
Vulnerability from csaf_cisa
Published
2019-06-11 00:00
Modified
2021-02-09 00:00
Summary
Siemens SCALANCE X (Update B)

Notes

CISA Disclaimer
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
Legal Notice
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/.
Risk evaluation
Successful exploitation of this vulnerability could allow an attacker to reconstruct passwords for users of the affected devices, if the attacker is able to obtain a backup of the device configuration.
Critical infrastructure sectors
Chemical, Critical Manufacturing, Energy, Food and Agriculture, and Water and Wastewater Systems
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA 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.
Recommended Practices
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. Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Exploitability
No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Christopher Wade"
        ],
        "organization": "Pen Test Partners",
        "summary": "coordinating disclosure with Siemens"
      },
      {
        "organization": "Siemens",
        "summary": "reporting this vulnerability to CISA"
      },
      {
        "names": [
          "Artem Zinenko"
        ],
        "organization": "Kaspersky",
        "summary": "reporting 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-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 reconstruct passwords for users of the affected devices, if the attacker is able to obtain a backup of the device configuration.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Chemical, Critical Manufacturing, Energy, Food and Agriculture, and Water and Wastewater Systems",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Germany",
        "title": "Company headquarters location"
      },
      {
        "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 \nsolutions, please contact the Siemens ProductCERT:\n\nhttps://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      },
      {
        "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": "other",
        "text": "No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely.",
        "title": "Exploitability"
      }
    ],
    "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": "self",
        "summary": "ICS Advisory ICSA-19-162-04 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2019/icsa-19-162-04.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-19-162-04 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-19-162-04"
      },
      {
        "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-496604: SSA-646841: Recoverable Password from Configuration Storage in SCALANCE X Switches - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/SSA-646841.txt"
      }
    ],
    "title": "Siemens SCALANCE X (Update B)",
    "tracking": {
      "current_release_date": "2021-02-09T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-19-162-04",
      "initial_release_date": "2019-06-11T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2019-06-11T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-19-162-04 Siemens SCALANCE X"
        },
        {
          "date": "2020-01-14T00:00:00.000000Z",
          "legacy_version": "A",
          "number": "2",
          "summary": "ICSA-19-162-04 Siemens SCALANCE X (Update A)"
        },
        {
          "date": "2021-02-09T00:00:00.000000Z",
          "legacy_version": "B",
          "number": "3",
          "summary": "ICSA-19-162-04 Siemens SCALANCE X (Update B)"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All Versions \u003c V5.2.4",
                "product": {
                  "name": "SCALANCE X-200 switch family (incl.\u00a0SIPLUS NET variants): All Versions \u003c V5.2.4",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200 switch family (incl.\u00a0SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V5.5.0",
                "product": {
                  "name": "SCALANCE X-200IRT switch family (incl.\u00a0SIPLUS NET variants): All versions \u003c V5.5.0",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-200IRT switch family (incl.\u00a0SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V4.1.3",
                "product": {
                  "name": "SCALANCE X-300 switch family (incl.\u00a0X408 and SIPLUS NET variants): All versions \u003c V4.1.3",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-300 switch family (incl.\u00a0X408 and SIPLUS NET variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions",
                "product": {
                  "name": "SCALANCE X-414-3E: All versions",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE X-414-3E"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-6567",
      "cwe": {
        "id": "CWE-257",
        "name": "Storing Passwords in a Recoverable Format"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected devices store passwords in a recoverable format. An attacker may extract and recover device passwords from the device configuration.",
          "title": "Summary"
        },
        {
          "category": "summary",
          "text": "Successful exploitation requires access to a device configuration backup and impacts confidentiality of the stored passwords.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6567"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Restrict access to config backups or archived device configuration files",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Restrict or disable network access to mechanisms that allow to retrieve\nthe device configuration, if enabled.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Restrict access to device configuration module C-PLUG, if in use.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "SCALANCE X-414-3E: Migrate to SCALANCE XM-400 product line",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.2.4 or later version - Download: https://support.industry.siemens.com/cs/ww/en/view/109767965 ",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109767965"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.5.0 or later version - Download: https://support.industry.siemens.com/cs/ww/en/view/109792534/ ",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109792534/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.1.3 or later version - Download: https://support.industry.siemens.com/cs/document/109773547 ",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109773547"
        },
        {
          "category": "vendor_fix",
          "details": "See recommendations from section Workarounds and Mitigations ",
          "product_ids": [
            "CSAFPID-0004"
          ]
        },
        {
          "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: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        }
      ]
    }
  ]
}


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